AFOS product CLICPR
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CDUS45 KRIW 180744
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1244 AM MST SUN DEC 18 2011


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 17 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2011


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         38        MM  60    1980  33      5       12        
  MINIMUM         26        MM -31    1964  13     13      -19        
  AVERAGE         32                        23      9       -3      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.45 1970   0.01  -0.01     0.00    
  MONTH TO DATE    0.13                      0.27  -0.14     0.62    
  SINCE DEC 1      0.13                      0.27  -0.14     0.62    
  SINCE JAN 1     12.71                     12.30   0.41    11.87    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                       0.3   -0.3      0.0     
  MONTH TO DATE    3.8                       6.1   -2.3      8.3     
  SINCE DEC 1      3.8                       6.1   -2.3      8.3     
  SINCE JUL 1     19.1                      25.6   -6.5     17.1     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       33                        42     -9       68       
  MONTH TO DATE  736                       695     41      616       
  SINCE DEC 1    736                       695     41      616       
  SINCE JUL 1   2373                      2549   -176     2285       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    519                       422     97      423       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    SW (210)      
  AVERAGE WIND SPEED    18.2                                         

                                                                     
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    57          1200 AM                                     
 LOWEST     44          1200 PM                                     
 AVERAGE    51                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   33        52      1994                    
 MINIMUM TEMPERATURE (F)   13       -18      1983                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 18 2011......SUNRISE   732 AM MST   SUNSET   433 PM MST   
DECEMBER 19 2011......SUNRISE   732 AM MST   SUNSET   433 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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