Spring 2009 Climate Summary

Bismarck

Temperatures during the 2009 spring season (defined as the months of March-April-May) at the Bismarck airport averaged 39.0 degrees, which was 4.0 degrees below the 1971 to 2000 climatological average. This marked the coldest spring season since 2002. Overall, the spring of 2009 will go down in the books as being tied with the spring seasons of 1880 and 1924 for the 30th coolest on record.  By far, the coldest month during the season was March, when the average monthly temperature was only 21.5 degrees.  This was 8.2 degrees below the climatological average, and ranked the month as the 33rd coldest March in recorded history.  The following months of April and May also proved to be on the cool side of average, but were not abnormally cold.  These months were 2.1 and 1.7 degrees below average, respectively. 

The daily temperatures ranged from 85 degrees on the 15th of May to a frosty -18 degrees on the 1st and on the 12th of March.  There were a total of 16 days in which the mercury never broke the freezing mark.  On average, this feat is achieved on only about 10 days during the spring season.  Additionally, there were a total of 8 days in which overnight low temperatures fell be zero, which was above the average of 3 days typically experienced during the season.

If the cold was not enough, we had plenty of snow to go with it, especially during March.  The month of March continued the record snowfall pace for Bismarck, when a total of 29.7 inches of the white stuff occurred.  This amount ranked March as the 2nd snowiest in recorded history at Bismarck.  The months to follow, however, only produced an additional tenth of an inch, bringing the total snowfall since November 2008 up to 100.3 inches.  This rates second all time to the 1996-97 season when a total of 101.6 inches was observed.

Liquid equivalence precipitation during the season (includes the amount of rainfall, as well as the amount of rain that would have been observed if the snowfall above fell as rain) totaled 5.44 inches, which falls above the range of 3.77 to 4.83 inches typically observed during the spring season.

 

...THE BISMARCK ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2009 TO 5/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1875 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   05/30/1934                                    
                        05/28/1934                                    
 LOW              -36   03/15/1897                                    
HIGHEST            85   05/18        MM      MM       MM  MM          
LOWEST            -18   03/12        MM      MM       MM  MM          
                        03/01                                         
AVG. MAXIMUM     50.3              55.1    -4.8       MM              
AVG. MINIMUM     27.7              33.8    -6.1       MM              
MEAN             39.0              43.0    -4.0       MM              
DAYS MAX >= 90      0               0.6    -0.6       MM              
DAYS MAX <= 32     16              10.0     6.0       MM              
DAYS MIN <= 32     49              49.6    -0.6       MM              
DAYS MIN <= 0       8               3.3     4.7       MM              

PRECIPITATION (INCHES)
                                         
TOTALS           5.44              4.62    0.82       MM              
DAILY AVG.       0.06                MM      MM       MM              
DAYS >= .01        21              25.7    -4.7       MM              
DAYS >= .10        11              11.4    -0.4       MM              
DAYS >= .50         4               2.3     1.7       MM              
DAYS >= 1.00        1               0.6     0.4       MM              
GREATEST
 24 HR. TOTAL    1.59   MM                            MM              
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                                MM          

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM                                            
TOTALS           29.8              13.3                               

DEGREE_DAYS
HEATING TOTAL    2377                                                 
COOLING TOTAL       3                                                 
.................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    38/240    DATE  05/12
HIGHEST GUST SPEED/DIRECTION    47/220    DATE  05/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   54
NUMBER OF DAYS FAIR           53
NUMBER OF DAYS PC             23
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       6
LIGHT RAIN               27     FREEZING RAIN              1
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                3     SNOW                       4
LIGHT SNOW               15     SLEET                      0
FOG                      37     FOG W/VIS <= 1/4 MILE      9
HAZE                     13                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

 



 

Williston

Temperatures for the 2009 spring season (defined as the months of March-April-May) at the Williston airport averaged 37.9 degrees, which was 4.0 degrees below the 1971 to 2000 climatological average. This marked the coolest spring season since 2002. Overall, the spring of 2009 will go down in the books as being the 22nd coldest on record.   By far, the coldest month during the season was March, when the average monthly temperature was only 20.6 degrees.  This was 8.1 degrees below the climatological average, and ranked the month as the 20th coldest March in recorded history.  The following months of April and May also proved to be on the cool side of average, but were not abnormally cold.  These months were 1.2 and 2.7 degrees below average, respectively. 

The daily temperatures ranged from 84 degrees on the 30th of May to a frosty -21 degrees on the 11th of March.  There were a total of 13 days in which the mercury never broke the freezing mark.  On average, this feat is achieved on only about 9 days during the spring season.  Additionally, there were a total of 8 days in which overnight low temperatures fell be zero, which was above the average of 4 days typically experienced during the season.

Liquid equivalence precipitation during the season (includes the amount of rainfall, as well as the amount of rain that would have been observed if snowfall fell as rain) totaled 1.78 inches, which falls well below  the range of 3.23 to 3.99 inches typically observed during the spring season.  The driest month was March, when only 0.06 inches were observed.  This ranked as the 3rd driest March in recorded history.

 



...THE WILLISTON ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2009 TO 5/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1894 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             106   05/22/1980                                    
 LOW              -35   03/14/1897                                    
HIGHEST            84   05/30        MM      MM       MM  MM          
LOWEST            -21   03/11        MM      MM       MM  MM          
AVG. MAXIMUM     50.5              54.8    -4.3       MM              
AVG. MINIMUM     25.4              29.1    -3.7       MM              
MEAN             37.9              41.9    -4.0       MM              
DAYS MAX >= 90      0               1.0    -1.0       MM              
DAYS MAX <= 32     13               9.2     3.8       MM              
DAYS MIN <= 32     58              50.1     7.9       MM              
DAYS MIN <= 0       8               3.6     4.4       MM              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM                                            
 MINIMUM           MM   MM                                            
TOTALS           1.78              3.67   -1.89       MM              
DAILY AVG.       0.02              0.04   -0.02       MM              
DAYS >= .01        19              25.9    -6.9       MM              
DAYS >= .10         5              10.3    -5.3       MM              
DAYS >= .50         0               1.5    -1.5       MM              
DAYS >= 1.00        0               0.4    -0.4       MM              
GREATEST
 24 HR. TOTAL    0.59   MM                            MM              
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                                MM          

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM                                            
TOTALS            1.9              12.0                               

DEGREE_DAYS
HEATING TOTAL    2475                                                 
COOLING TOTAL       2                                                 
.................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    36/270    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    46/250    DATE  05/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   60
NUMBER OF DAYS FAIR           59
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       6
LIGHT RAIN               26     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW               14     SLEET                      0
FOG                      27     FOG W/VIS <= 1/4 MILE      4
HAZE                      5                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          
 


Dickinson

Temperatures for the 2009 spring season (defined as the months of March-April-May) at the Dickinson airport averaged 37.0 degrees, which was 5.0 degrees below the 1971 to 2000 climatological average. This marked the coolest spring season since 2002. Overall, the spring of 2009 will go down in the books as being tied with the spring season of 1935 as the 17th coldest on record.   By far, the coldest months during the season were March and April, when the average monthly temperatures were only 22.3 (8.1 degrees below average) and 37.6 degrees (5.2 degrees below average), respectfully.  The following month of May also proved to be on the cool side of average, but it was not abnormally cold. 

The daily temperatures ranged from 80 degrees on the 18th and the 30th of May to a frosty -21 degrees on the 11th of March.  There were a total of 22 days in which the mercury never broke the freezing mark.  On average, this feat is achieved on only about 13 days during the spring season.  Additionally, there were a total of 7 days in which overnight low temperatures fell be zero, which was above the average of 5 days typically experienced during the season.

Liquid equivalence precipitation during the season (includes the amount of rainfall, as well as the amount of rain that would have been observed if snowfall fell as rain) totaled 3.65 inches, which falls just below  the range of 3.67 to 4.50 inches typically observed during the spring season. 

 

...THE DICKINSON ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2009 TO 5/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1903 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   05/29/1934                                    
 LOW              -33   03/10/1948                                    
HIGHEST            80   05/30        MM      MM       MM  MM          
                        05/18                                         
LOWEST            -21   03/11        MM      MM       MM  MM          
AVG. MAXIMUM     48.5              53.6    -5.1       MM              
AVG. MINIMUM     25.6              30.4    -4.8       MM              
MEAN             37.0              42.0    -5.0       MM              
DAYS MAX >= 90      0                MM      MM       MM              
DAYS MAX <= 32     22                MM      MM       MM              
DAYS MIN <= 32     59                MM      MM       MM              
DAYS MIN <= 0       7                MM      MM       MM              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM                                            
 MINIMUM           MM   MM                                            
TOTALS           3.65              5.16   -1.51       MM              
DAILY AVG.       0.04                MM      MM       MM              
DAYS >= .01        20                MM      MM       MM              
DAYS >= .10         9                MM      MM       MM              
DAYS >= .50         2                MM      MM       MM              
DAYS >= 1.00        0                MM      MM       MM              
GREATEST
 24 HR. TOTAL    1.11   MM                            MM              
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                                MM          

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM                                            
TOTALS             MM              11.7                               

DEGREE_DAYS
HEATING TOTAL    2551                                                 
COOLING TOTAL       0                                                 
.................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    40/290    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    48/300    DATE  05/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
NUMBER OF DAYS FAIR           51
NUMBER OF DAYS PC             23
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               27     FREEZING RAIN              1
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                4     SNOW                       7
LIGHT SNOW               17     SLEET                      0
FOG                      51     FOG W/VIS <= 1/4 MILE     10
HAZE                     10                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.       

 

 

 

 

 

Minot

Temperatures for the 2009 spring season (defined as the months of March-April-May) at the Minot airport averaged 37.4 degrees, which was 3.7 degrees below the 1971 to 2000 climatological average. This marked the coolest spring season since 2002. Overall, the spring of 2009 will go down in the books as being tied with four other spring seasons as the 28th coldest on record.   By far, the coldest month during the season was March, when the average monthly temperature was only 19.9 degrees.  This was 8.1 degrees below the climatological average, and ranked the month a tie with March of 1956 as the 29th coldest March in recorded history.  The following months of April and May also proved to be on the cool side of average, but were not abnormally cold. 

The daily temperatures ranged from 79 degrees on the 27th and the 29th of May to a frosty -16 degrees on the 1st and on the 11th of March.  There were a total of 18 days in which the mercury never broke the freezing mark.  On average, this feat is achieved on only about 15 days during the spring season.  Additionally, there were a total of 8 days in which overnight low temperatures fell be zero, which was above the average of 6 days typically experienced during the season.

Liquid equivalence precipitation during the season (includes the amount of rainfall, as well as the amount of rain that would have been observed if snowfall fell as rain) totaled 3.37 inches, which falls just below  the range of 3.76 to 4.71 inches typically observed during the spring season. 

 

...THE MINOT ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2009 TO 5/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1905 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   MM                                            
 LOW              -35   MM                                            
HIGHEST            79   05/29        MM      MM       MM  MM          
                        05/27                                         
LOWEST            -16   03/11        MM      MM       MM  MM          
                        03/01                                         
AVG. MAXIMUM     47.8              51.4    -3.6       MM              
AVG. MINIMUM     27.1              30.7    -3.6       MM              
MEAN             37.4              41.1    -3.7       MM              
DAYS MAX >= 90      0                MM      MM       MM              
DAYS MAX <= 32     18                MM      MM       MM              
DAYS MIN <= 32     52                MM      MM       MM              
DAYS MIN <= 0       8                MM      MM       MM              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM                                            
 MINIMUM           MM   MM                                            
TOTALS           3.37              5.37   -2.00       MM              
DAILY AVG.       0.04                MM      MM       MM              
DAYS >= .01        23                MM      MM       MM              
DAYS >= .10         8                MM      MM       MM              
DAYS >= .50         2                MM      MM       MM              
DAYS >= 1.00        0                MM      MM       MM              
GREATEST
 24 HR. TOTAL    0.91   MM                            MM              
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                                MM          

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM                                            
TOTALS            0.0              14.1                               

DEGREE_DAYS
HEATING TOTAL    2522                                                 
COOLING TOTAL       2                                                 
.................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    36/110    DATE  05/19
HIGHEST GUST SPEED/DIRECTION    44/270    DATE  05/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
NUMBER OF DAYS FAIR           57
NUMBER OF DAYS PC             22
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                2     SNOW                       2
LIGHT SNOW               10     SLEET                      0
FOG                      33     FOG W/VIS <= 1/4 MILE      6
HAZE                     14                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

 

 

 

 

 

Jamestown

Temperatures for the 2009 spring season (defined as the months of March-April-May) at the Jamestown  airport averaged 37.0 degrees, which was 4.5 degrees below the 1971 to 2000 climatological average. This marked the coolest spring season since 2002. Overall, the spring of 2009 will go down in the books as being tied with the spring season of 1923 as the 10th coldest on record.   By far, the coldest month during the season was March, when the average monthly temperature was only 19.3 degrees.  This was 8.6 degrees below the climatological average, and ranked the month a tie with March of 1943 and 1952 as the 17th coldest March in recorded history.  The following months of April and May also proved to be on the cool side of average, but were not abnormally cold. 

The daily temperatures ranged from 83 degrees on the 31st of May to a frosty -22 degrees on the 1st of March.  There were a total of 21 days in which the mercury never broke the freezing mark.  On average, this feat is achieved on only about 13 days during the spring season.  Additionally, there were a total of 7 days in which overnight low temperatures fell be zero, which was above the average of 5 days typically experienced during the season.

Liquid equivalence precipitation during the season (includes the amount of rainfall, as well as the amount of rain that would have been observed if snowfall fell as rain) totaled 3.58 inches, which falls below  the range of 4.15 to 5.20 inches typically observed during the spring season. 

 

 

 ...THE JAMESTOWN ND CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2009 TO 5/31/2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1891 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             107   05/29/1934                                    
 LOW              -29   03/10/1948                                    
HIGHEST            83   05/31        MM      MM       MM  MM          
LOWEST            -22   03/01        MM      MM       MM  MM          
AVG. MAXIMUM     47.5              52.7    -5.2       MM              
AVG. MINIMUM     26.5              30.3    -3.8       MM              
MEAN             37.0              41.5    -4.5       MM              
DAYS MAX >= 90      0                MM      MM       MM              
DAYS MAX <= 32     21                MM      MM       MM              
DAYS MIN <= 32     51                MM      MM       MM              
DAYS MIN <= 0       7                MM      MM       MM              

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM                                            
 MINIMUM           MM   MM                                            
TOTALS           3.58              4.28   -0.70       MM              
DAILY AVG.       0.04                MM      MM       MM              
DAYS >= .01        23                MM      MM       MM              
DAYS >= .10        12                MM      MM       MM              
DAYS >= .50         1                MM      MM       MM              
DAYS >= 1.00        0                MM      MM       MM              
GREATEST
 24 HR. TOTAL    0.72   MM                            MM              
 STORM TOTAL       MM                                 MM              
 (MM/DD(HH))            MM                                MM          

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM                                            
TOTALS             MM              10.7                               

DEGREE_DAYS
HEATING TOTAL    2559                                                 
COOLING TOTAL       2                                                 
.................................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    47/140    DATE  03/22
HIGHEST GUST SPEED/DIRECTION    55/130    DATE  03/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM                                      
NUMBER OF DAYS FAIR           48
NUMBER OF DAYS PC             27
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       5
LIGHT RAIN               30     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                3     SNOW                       6
LIGHT SNOW               14     SLEET                      0
FOG                      41     FOG W/VIS <= 1/4 MILE     14
HAZE                     14                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.         

 

 

 



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