675  
CDUS45 KRIW 210755  
CLIRKS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
155 AM MDT SUN MAY 21 2023  
   
...............................
 
 
   
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR MAY 20 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 3:02 PM 86 1954 65 8 46  
MINIMUM 42 5:46 AM 26 2022 40 2 26  
AVERAGE 58 52 6  
 
PRECIPITATION (IN)  
YESTERDAY T 1.09 1975 0.05 -0.05 0.02  
MONTH TO DATE 0.26 0.85 -0.59 0.39  
SINCE MAR 1 0.70 2.34 -1.64 0.98  
SINCE JAN 1 0.93 3.09 -2.16 0.99  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 13 -6 29  
MONTH TO DATE 246 324 -78 338  
SINCE MAR 1 2377 1997 380 2078  
SINCE JUL 1 8233 7787 446 7349  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 57 6:00 AM  
LOWEST 16 3:00 PM  
AVERAGE 37  
   
......................................................
 
 
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 83 2012  
MINIMUM TEMPERATURE (F) 40 22 2022  
 
SUNRISE AND SUNSET  
MAY 21 2023...........SUNRISE 5:52 AM MDT SUNSET 8:35 PM MDT  
MAY 22 2023...........SUNRISE 5:51 AM MDT SUNSET 8:36 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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