2011 Yearly Climate Summary for Duluth

...THE DULUTH MN CLIMATE SUMMARY FOR THE YEAR OF 2011...
 
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2011
 
WEATHER         OBSERVED          NORMAL DEPART LAST YEAR'S        
                 VALUE   DATE(S) VALUE   FROM    VALUE DATE(S)     
                                          NORMAL                     
................................................................
TEMPERATURE (F)
RECORD
HIGH             106   07/13/1936                                   
 LOW              -41   01/02/1885                                   
HIGHEST            92   07/09                         89 08/09            
LOWEST            -25   01/21                        -26 01/03
AVG. MAXIMUM     49.5              48.8     0.7     51.1             
AVG. MINIMUM     32.0              30.5     1.5     32.6             
MEAN             40.7              39.7     1.0     41.8             
DAYS MAX >= 90      3               1.5     1.5        0             
DAYS MAX <= 32     98              98.2    -0.2       89             
DAYS MIN <= 32    178             176.7     1.3      157             
DAYS MIN <= 0      33              39.1    -6.1       34             
 
PRECIPITATION (INCHES)
RECORDS
MAXIMUM        45.38   1879                                         
 MINIMUM        18.11   1910                                          
TOTALS          26.06             30.96   -4.90    35.60             
DAILY AVG.       0.07              0.08   -0.01     0.10             
DAYS >= .01       134             131.4     2.6      114             
DAYS >= .10        66              64.5     1.5       71             
DAYS >= .50        11              18.5    -7.5       22             
DAYS >= 1.00        4               6.1    -2.1        6             
GREATEST
24 HR. TOTAL    2.57   08/01                            3.93 05/23
                        08/02
 
 
SNOWFALL (INCHES)
RECORDS
MAXIMUM        168.9   1950
 MINIMUM         27.4   1895
24 HR TOTAL     25.4   12/05/1950 TO 12/06/1950
SNOW DEPTH        48   03/19/1965
TOTALS           51.5              86.1   -34.6     81.3             
SINCE 7/1        11.8              33.8   -22.0     53.7             
SNOWDEPTH AVG.      4                 5       1        6             
DAYS >= TRACE     112              60.6    51.4       74             
DAYS >= 1.0        21              23.0    -2.0       18           
GREATEST
SNOW DEPTH        23   01/16                         28 02/10
                        01/15                             02/09                
 24 HR TOTAL      4.5   01/14                       11.3 12/20
                        01/15                         TO 12/21
 
DEGREE_DAYS
HEATING TOTAL    9031              9444    -413     8618             
 SINCE 7/1       3136              3769    -633     3621             
COOLING TOTAL     314               205     109      310             
 SINCE 1/1        314               204     110      310             
 
FREEZE DATES
RECORD
EARLIEST     08/27/1986                                             
 LATEST       06/21/1992                                              
EARLIEST                        09/26                                
LATEST                          05/10                                
.................................................................
 
WIND (MPH)
AVERAGE WIND SPEED              9.3
RESULTANT WIND SPEED/DIRECTION   1/281
HIGHEST WIND SPEED/DIRECTION    43/280    DATE 06/01               
HIGHEST GUST SPEED/DIRECTION    56/070    DATE 03/22
 
SKY COVER
 
AVERAGE SKY COVER            0.50
NUMBER OF DAYS FAIR          130
NUMBER OF DAYS PC            137
NUMBER OF DAYS CLOUDY         98
 
AVERAGE RH (PERCENT)     69        
                                                                    
- INDICATES NEGATIVE NUMBERS.                                     
R INDICATES RECORD WAS SET OR TIED.                               
MM INDICATES DATA IS MISSING.                                      
T INDICATES TRACE AMOUNT.
   
$$              
 
.THE CALENDAR YEAR OF 2011 WAS WARMER AND DRIER THAN NORMAL AT DULUTH MN...
 
THE AVERAGE TEMPERATURE FOR THE YEAR WAS 40.7 DEGREES WHICH WAS 1.0 DEGREE
ABOVE THE NORMAL OF 39.7 DEGREES TYING THIS FOR THE 22ND WARMEST CALENDAR
YEAR ON RECORD.
 
26.06 INCHES OF LIQUID EQUIVALENT PRECIPITATION WAS RECORDED FOR THE YEAR.
THIS IS 4.90 INCHES BELOW THE NORMAL OF 30.96 MAKING THIS THE 42ND DRIEST
CALENDAR YEAR ON RECORD. 51.5 INCHES OF SNOW FELL FOR THE YEAR WHICH WAS
34.6 INCHES BELOW THE NORMAL OF 86.1 INCHES MAKING THIS THE 30TH LEAST
SNOWIEST CALENDAR YEAR IN STATION HISTORY.


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