062  
CDUS45 KRIW 120747  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1246 AM MST TUE DEC 12 2017  
 
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 11 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 43 302 PM 59 1939 34 9 34  
MINIMUM 26 1159 PM -19 1985 13 13 20  
AVERAGE 35 24 11 27  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.15 1984 0.01 -0.01 0.05  
MONTH TO DATE 0.35 0.18 0.17 0.46  
SINCE DEC 1 0.35 0.18 0.17 0.46  
SINCE JAN 1 13.08 12.21 0.87 14.72  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.3 -0.3 1.1  
MONTH TO DATE 5.4 3.9 1.5 8.7  
SINCE DEC 1 5.4 3.9 1.5 8.7  
SINCE JUL 1 14.6 23.4 -8.8 11.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 41 -11 38  
MONTH TO DATE 379 443 -64 561  
SINCE DEC 1 379 443 -64 561  
SINCE JUL 1 2123 2297 -174 1987  
 
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 25 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 14.0  
 
 
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 68 800 PM  
LOWEST 33 1200 PM  
AVERAGE 51  
   
......................................................
 
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 60 2014  
MINIMUM TEMPERATURE (F) 13 -14 2000  
 
 
SUNRISE AND SUNSET  
DECEMBER 12 2017......SUNRISE 728 AM MST SUNSET 432 PM MST  
DECEMBER 13 2017......SUNRISE 729 AM MST SUNSET 432 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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