AFOS product CLICPR
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CDUS45 KRIW 100733
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1232 AM MST THU DEC 10 2009


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 9 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1939 TO 2009


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         10    213 PM  63    1939  35    -25       27       
  MINIMUM        -19   1257 AM -23    1977  15    -34        1       
  AVERAGE         -4                        25    -29       14      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.33 1985   0.02  -0.02      T      
  MONTH TO DATE    0.30                      0.18   0.12     0.28    
  SINCE DEC 1      0.30                      0.18   0.12     0.28    
  SINCE JAN 1     15.10                     12.59   2.51    11.80    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.4   -0.4      0.2     
  MONTH TO DATE    6.8                       3.6    3.2      7.3     
  SINCE DEC 1      6.8                       3.6    3.2      7.3     
  SINCE JUL 1     22.5                      24.7   -2.2     17.5     
  SNOW DEPTH       3                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       69                        40     29       51       
  MONTH TO DATE  540                       350    190      337       
  SINCE DEC 1    540                       350    190      337       
  SINCE JUL 1   2481                      2181    300     2049       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    221                       428   -207      375       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    12.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    78           100 AM                                     
 LOWEST     50           100 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   34        63      1939                    
 MINIMUM TEMPERATURE (F)   15       -18      1961                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 10 2009......SUNRISE   726 AM MST   SUNSET   431 PM MST   
DECEMBER 11 2009......SUNRISE   727 AM MST   SUNSET   431 PM MST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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