857  
CDUS45 KRIW 170753  
CLIWRL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1250 AM MST SUN DEC 17 2017  
 
   
...............................
 
 
   
..THE WORLAND WY CLIMATE SUMMARY FOR DECEMBER 16 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1947 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 37 618 AM 55 1962 30 7 15  
MINIMUM 25 1159 PM -29 1964 4 21 -5  
AVERAGE 31 17 14 5  
 
PRECIPITATION (IN)  
YESTERDAY 0.29R 0.14 1975 0.00 0.29 0.05  
MONTH TO DATE 0.32 0.12 0.20 0.07  
SINCE DEC 1 0.32 0.12 0.20 0.07  
SINCE JAN 1 8.80 7.46 1.34 9.82  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 48 -14 60  
MONTH TO DATE 572 737 -165 785  
SINCE DEC 1 572 737 -165 785  
SINCE JUL 1 2491 2629 -138 2324  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 588 535 53 690    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 4.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
SNOW  
LIGHT SNOW  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 800 AM  
LOWEST 61 500 AM  
AVERAGE 81  
   
......................................................
 
 
 
THE WORLAND WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 56 1962  
MINIMUM TEMPERATURE (F) 4 -40 1964  
 
 
SUNRISE AND SUNSET  
DECEMBER 17 2017......SUNRISE 741 AM MST SUNSET 435 PM MST  
DECEMBER 18 2017......SUNRISE 742 AM MST SUNSET 436 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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