AFOS product CLICPR
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CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1235 AM MST MON DEC 20 2010


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 19 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         41   1108 PM  51    2004  33      8       36       
  MINIMUM         12    145 AM -24    1990  13     -1       22       
  AVERAGE         27                        23      4       29      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01          0.42 1978   0.02  -0.01     0.00    
  MONTH TO DATE    0.63                      0.38   0.25     0.30    
  SINCE DEC 1      0.63                      0.38   0.25     0.30    
  SINCE JAN 1     11.88                     12.79  -0.91    15.10    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.4   -0.4      0.0     
  MONTH TO DATE    8.3                       7.6    0.7      6.8     
  SINCE DEC 1      8.3                       7.6    0.7      6.8     
  SINCE JUL 1     17.1                      28.7  -11.6     22.5     
  SNOW DEPTH       3                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       38                        41     -3       36       
  MONTH TO DATE  709                       757    -48      946       
  SINCE DEC 1    709                       757    -48      946       
  SINCE JUL 1   2378                      2588   -210     2887       
                                                                     
 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    25   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     8.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.7                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  LIGHT SNOW                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96          1200 PM                                     
 LOWEST     69           700 AM                                     
 AVERAGE    83                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   33        56      1941                    
 MINIMUM TEMPERATURE (F)   13       -36      1990                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 20 2010......SUNRISE   733 AM MST   SUNSET   434 PM MST   
DECEMBER 21 2010......SUNRISE   734 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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