AFOS product CLICPR
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CDUS45 KRIW 180734
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY                                 
1231 AM MST SUN DEC 18 2016


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 17 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM          8   1139 PM  60    1980  33    -25       19       
  MINIMUM        -30    737 AM -31    1964  13    -43        1       
  AVERAGE        -11                        23    -34       10      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             0.45 1970   0.01  -0.01     0.05    
  MONTH TO DATE    0.84                      0.27   0.57     0.89    
  SINCE DEC 1      0.84                      0.27   0.57     0.89    
  SINCE JAN 1     15.10                     12.30   2.80    13.12    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        T                         0.3   -0.3      1.2     
  MONTH TO DATE   14.3                       6.1    8.2     12.8     
  SINCE DEC 1     14.3                       6.1    8.2     12.8     
  SINCE JUL 1     17.5                      25.6   -8.1     26.1     
  SNOW DEPTH       4                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       76                        42     34       55       
  MONTH TO DATE  888                       695    193      580       
  SINCE DEC 1    888                       695    193      580       
  SINCE JUL 1   2314                      2549   -235     2102       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    451                       422     29      427       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (230)      
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION    SW (230)      
  AVERAGE WIND SPEED    11.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    91           400 AM                                     
 LOWEST     59           300 PM                                     
 AVERAGE    75                                                       

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

                                                                     
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 2016......SUNRISE   732 AM MST   SUNSET   433 PM MST   
DECEMBER 19 2016......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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