AFOS product CLICPR
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CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1250 AM MST SUN DEC 17 2017


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         39    309 AM  59    1980  33      6       16       
  MINIMUM         24   1159 PM -31    1964  13     11       -9       
  AVERAGE         32                        23      9        4      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.23          0.36 2016   0.02   0.21     0.36    
  MONTH TO DATE    0.63                      0.26   0.37     0.84    
  SINCE DEC 1      0.63                      0.26   0.37     0.84    
  SINCE JAN 1     13.36                     12.29   1.07    15.10    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        1.8                       0.4    1.4      5.2     
  MONTH TO DATE    7.2                       5.8    1.4     14.3     
  SINCE DEC 1      7.2                       5.8    1.4     14.3     
  SINCE JUL 1     16.4                      25.3   -8.9     17.5     
  SNOW DEPTH       T                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       33                        42     -9       61       
  MONTH TO DATE  541                       653   -112      812       
  SINCE DEC 1    541                       653   -112      812       
  SINCE JUL 1   2285                      2507   -222     2238       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    448                       422     26      451       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED    11.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    92          1000 AM                                     
 LOWEST     33          1200 AM                                     
 AVERAGE    63                                                       

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

                                                                     
THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   33        60      1980                    
 MINIMUM TEMPERATURE (F)   13       -31      1964                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 17 2017......SUNRISE   731 AM MST   SUNSET   433 PM MST   
DECEMBER 18 2017......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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