176  
CDUS45 KRIW 280045  
CLIRIW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT TUE MAY 27 2025  
   
...............................
 
 
   
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 27 2025
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1995 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 76 12:25 PM 87 2014 71 5 73  
MINIMUM 47 4:50 AM 35 2012 43 4 39  
AVERAGE 62 57 5 56  
 
PRECIPITATION (IN)  
TODAY T 1.63 2019 0.06 -0.06 0.00  
MONTH TO DATE 1.14 1.70 -0.56 2.07  
SINCE MAR 1 4.02 3.55 0.47 2.97  
SINCE JAN 1 4.52 4.24 0.28 4.42  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE 0.9 0.9  
SINCE MAR 1 18.2 4.5  
SINCE JUL 1 30.7 36.7  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 3 8 -5 9  
MONTH TO DATE 310 344 -34 402  
SINCE MAR 1 1800 1903 -103 1839  
SINCE JUL 1 7147 7781 -634 7423  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 3 0 3 0  
SINCE MAR 1 3 0 3 0  
SINCE JAN 1 3 0 3 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77  
LOWEST 28  
AVERAGE 53  
   
......................................................
 
 
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 90 2003  
MINIMUM TEMPERATURE (F) 43 35 2011  
 
SUNRISE AND SUNSET  
MAY 27 2025...........SUNRISE 5:40 AM MDT SUNSET 8:43 PM MDT  
MAY 28 2025...........SUNRISE 5:39 AM MDT SUNSET 8:43 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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