950  
CDUS45 KRIW 200738  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
138 AM MDT TUE OCT 20 2020  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR OCTOBER 19 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1948 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 63 1:42 PM 74 1974 55 8 50  
2003  
MINIMUM 45 10:57 PM 13 1976 32 13 26  
AVERAGE 54 43 11  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.34 1996 0.03 -0.03 0.07  
MONTH TO DATE 0.05 0.55 -0.50 0.10  
SINCE SEP 1 0.47 1.47 -1.00 0.70  
SINCE JAN 1 2.86 7.25 -4.39 3.80  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 22 -11 27  
MONTH TO DATE 230 349 -119 425  
SINCE SEP 1 488 613 -125 655  
SINCE JUL 1 509 677 -168 673  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 26 9 17 33  
SINCE JAN 1 457 286 171 334    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 41 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 53 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 27.1  
 
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 49 5:00 AM  
LOWEST 28 2:00 PM  
AVERAGE 39  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 76 1974  
MINIMUM TEMPERATURE (F) 31 13 1984  
 
SUNRISE AND SUNSET  
OCTOBER 20 2020.......SUNRISE 7:35 AM MDT SUNSET 6:27 PM MDT  
OCTOBER 21 2020.......SUNRISE 7:36 AM MDT SUNSET 6:25 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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