WFO Denver/Boulder


CLIMATE REPORT...RETRANSMITTED
NATIONAL WEATHER SERVICE BOULDER, CO                                 
200 PM MST TUE JAN 1 2008

................................... 

...THE DENVER CLIMATE SUMMARY FOR THE YEAR OF 2007...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1872 TO 2007

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR'S         
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)      
                                          NORMAL                      
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   07/20/2005                                    
                        08/08/1878                                    
 LOW              -29   01/09/1875                                    

HIGHEST           100   06/24                        103  10/07       
                        07/02                                         
                        07/17                                         
LOWEST            -18   02/02                        -13  02/18       

AVG. MAXIMUM     64.3              64.2     0.1     66.2              
AVG. MINIMUM     37.0              35.8     1.2     37.3              
MEAN             50.6              50.2     0.4     51.7              
DAYS MAX >= 90     54              33.4    20.6       54              
DAYS MAX <= 32     41              22.1    18.9       20              
DAYS MIN <= 32    139             156.0   -17.0      157              
DAYS MIN <= 0       8               7.8     0.2        5              

WARMEST YEAR       54.8  1934
COLDEST YEAR       47.6  1911

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        23.31  1967                                            
 MINIMUM         7.48  2002                                           
TOTALS          14.00             15.81   -1.81     8.64              
DAILY AVG.       0.04              0.04    0.00     0.02              
DAYS >= .01        81              89.1   -8.1        71              
DAYS >= .10        34                MM      MM       29              
DAYS >= .50         4                MM      MM        3              
DAYS >= 1.00        2                MM      MM        0              
GREATEST
 24 HR. TOTAL    2.65  10/13 TO 10/14          0.77  07/08 TO 07/09   
 STORM TOTAL            MM                           MM              
 (MM/DD(HH))            MM                           MM               

SNOWFALL (INCHES)
RECORDS
 TOTAL MAXIMUM     118.7  1908-09                                     
 TOTAL MINIMUM      20.8  1887-88

 24 HR TOTAL     23.6  12/24/1882                                     
 SNOW DEPTH        MM   MM                                            

TOTALS           55.4               61.7   -6.3      59.4              
 LIQUID EQUIV     MM                 MM      MM       MM               
SINCE 7/1        26.4               25.6    0.8      43.6              
 LIQUID 7/1       MM                 MM      MM       MM               
SNOWDEPTH AVG.    MM                 MM      MM       MM              

DAYS >= TRACE      43                MM      MM       32              
DAYS >= 1.0        19                MM      MM       15              
GREATEST
 SNOW DEPTH        14     01/22                       21   12/21        
                          01/06                            12/22       
 24 HR TOTAL        7.8   12/25 TO 12/26              20.7 12/20 TO 12/21      
 
STORM TOTAL         7.8                               20.7 12/20 TO 12/21
 (MM/DD(HH))              12/25 TO 12/26                                 
 
DEGREE_DAYS
HEATING TOTAL    6068              6128     -60     5659              
 SINCE 7/1       2312              2486    -174     2452              
COOLING TOTAL     963               696     267      961              
 SINCE 1/1        963               696     267      961              

FREEZE DATES
RECORD
 EARLIEST     09/08/1962                                              
 LATEST       06/08/2007                                              
EARLIEST                        10/08                                 
LATEST                          06/08                                
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
RESULTANT WIND SPEED/DIRECTION   3/199
HIGHEST WIND SPEED/DIRECTION    48/360  03/28  02/24 
HIGHEST GUST SPEED/DIRECTION    60/360  02/24        

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   78

NUMBER OF DAYS FAIR           66
NUMBER OF DAYS PC            232
NUMBER OF DAYS CLOUDY         67

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM             65     MIXED PRECIP               4
HEAVY RAIN                8     RAIN                      24
LIGHT RAIN               66     FREEZING RAIN              1
LT FREEZING RAIN         10     HAIL                       6
HEAVY SNOW                5     SNOW                      26
LIGHT SNOW               47     SLEET                      0
FOG                      99     FOG W/VIS <= 1/4 MILE     35
HAZE                     47                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

$$

    ...Denver's Preliminary 2007 Climatological Annual Statistics...

There was nothing spectacular in Denver's 2007 annual climatological statistics. None
of the annual statistics made it into the top ten annual categories...warmest ...
coldest... wettest...driest...snowiest and/or least snowiest. Temperatures extremes in
2007 ranged from minus 18 degrees on February 2nd up to 100 degrees recorded on June
24th...July 2nd and July 17th. The minus 18 temperature was a new February 2nd daily
record. The July 2nd 100 degree reading tied a daily record but the July 17th 100
degree reading was not high enough to tie or break the record for that date. The
average temperature for the year through December 30th was slightly above normal.
Precipitation for the year was 14.00 inches which was 1.81 inches below the yearly
normal (15.81 inches). Snowfall for the calendar year...which is January through
December...was 55.4 inches which is 6.3 inches below the 61.7 inch normal. Seasonal
snowfall is measured from July 1st through June 30th. So far...July through
December...26.4 inches has been tallied which is only 0.8 inch above the seasonal
average for the 1st half of the 2007-2008 season. There were 18 different types of
records tied or set during the year. In the snowfall category...there was 7.8 inches
recorded on Christmas Day which was a new record snowfall for December 25th. The
previous Christmas Day record was 6.2 inches...recorded in 1894.

BENTON

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