AFOS product CLICPR
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CDUS45 KRIW 190735
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1235 AM MST SUN DEC 19 2010


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 18 2010...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1939 TO 2010


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         28   1151 PM  52    1994  33     -5       37       
  MINIMUM         -9    736 AM -18    1983  13    -22       12       
  AVERAGE         10                        23    -13       25      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.19 1961   0.02  -0.02     0.00    
  MONTH TO DATE    0.62                      0.36   0.26     0.30    
  SINCE DEC 1      0.62                      0.36   0.26     0.30    
  SINCE JAN 1     11.87                     12.77  -0.90    15.10    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.4   -0.4      0.0     
  MONTH TO DATE    8.3                       7.2    1.1      6.8     
  SINCE DEC 1      8.3                       7.2    1.1      6.8     
  SINCE JUL 1     17.1                      28.3  -11.2     22.5     
  SNOW DEPTH       4                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       55                        41     14       40       
  MONTH TO DATE  671                       716    -45      910       
  SINCE DEC 1    671                       716    -45      910       
  SINCE JUL 1   2340                      2547   -207     2851       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    423                       428     -5      221       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED     4.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87           300 AM                                     
 LOWEST     67           300 PM                                     
 AVERAGE    77                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   33        51      2004                    
 MINIMUM TEMPERATURE (F)   13       -24      1990                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 19 2010......SUNRISE   733 AM MST   SUNSET   434 PM MST   
DECEMBER 20 2010......SUNRISE   733 AM MST   SUNSET   434 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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