WFO Denver/Boulder

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO                                 
1230 PM MST SAT JAN 3 2009

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

...THE DENVER CO CLIMATE SUMMARY FOR THE YEAR OF 2008...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1872 TO 2008

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           104   08/01        64      40      100  06/24       
LOWEST            -19   12/15        36     -55      -18  02/02       
AVG. MAXIMUM     64.7              64.2     0.5     64.3              
AVG. MINIMUM     35.9              35.8     0.1     37.0              
MEAN             50.3              50.1     0.2     51.7              
DAYS MAX >= 90     47              33.1    13.9     54
DAYS MAX <= 32     21              22.2    -1.2     41              
DAYS MIN <= 32    171             156.1    14.9    139              
DAYS MIN <= 0      10               9.0     1.0      8              

WARMEST YEAR       54.8  1934
COLDEST YEAR       47.6  1911

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        23.31   1967                                          
 MINIMUM         7.48   2002                                          
TOTALS          10.21             15.81   -5.60    14.00              
DAILY AVG.       0.03              0.04   -0.01     0.04              
DAYS >= .01        64              89.1   -25.1       79              
DAYS >= .10        23                MM      MM       21              
DAYS >= .50         7                MM      MM        3              
DAYS >= 1.00        3                MM      MM        0              
GREATEST
 24 HR. TOTAL    1.31   08/06 TO 08/07     .77   07/08 TO 07-09         

SNOWFALL (INCHES)
RECORDS
 TOTAL MAXIMUM     118.7  1908-09                                     
 TOTAL MINIMUM      20.8  1887-88
TOTALS
1/1 - 12/31      31.9               61.7   -29.8     55.4              
 LIQUID EQUIV     MM                 MM      MM       MM               
SINCE 7/1        12.0               25.6    13.6     26.4              
 LIQUID 7/1       MM                 MM      MM       MM               
SNOWDEPTH AVG.    MM                 MM      MM       MM              
DAYS >= TRACE      53                MM      MM       43              
DAYS >= 1.0        14                MM      MM       19              
     
GREATEST
 SNOW DEPTH         5   01/01                         14  01/22
                                                          01/26       
 24 HR TOTAL      3.9   12/08 TO 12/09                         

DEGREE_DAYS
HEATING TOTAL    6056              6128     -72     6068              
 SINCE 7/1       2367              2486    -119     2312              
COOLING TOTAL     825               696     129      963              
 SINCE 1/1        825               696     129      963              

FREEZE DATES
RECORD
 EARLIEST     09/08/1962                                              
 LATEST       06/08/2007                                              
EARLIEST                        10/07                                 
LATEST                          05/05                                 
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
RESULTANT WIND SPEED/DIRECTION   2/211
HIGHEST WIND SPEED/DIRECTION    46/360    DATE  05/02
HIGHEST GUST SPEED/DIRECTION    61/180    DATE  05/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   75

NUMBER OF DAYS FAIR           74
NUMBER OF DAYS PC            237
NUMBER OF DAYS CLOUDY         55

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH 
THUNDERSTORM             41     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      11
LIGHT RAIN               35     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       6
HEAVY SNOW                4     SNOW                      16
LIGHT SNOW               42     SLEET                      0
FOG                      89     FOG W/VIS <= 1/4 MILE     16
HAZE                     18                                           
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          

$$

BENTON

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