165  
CDUS45 KRIW 280045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT WED MAY 27 2026  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MAY 27 2026  
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 76 2:50 PM 91 1969 72 4 72  
MINIMUM 48 4:27 AM 30 1950 41 7 37  
AVERAGE 62 56 6 55  
 
PRECIPITATION (IN)  
TODAY 0.00 0.65 2019 0.07 -0.07 0.08  
MONTH TO DATE 1.67 1.94 -0.27 1.08  
SINCE MAR 1 3.11 4.19 -1.08 4.00  
SINCE JAN 1 3.65 5.24 -1.59 4.72  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 2.5 2.5 0.0 0.3  
SINCE MAR 1 13.9 23.3 -9.4 16.0  
SINCE JUL 1 29.6 71.6 -42.0 26.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 3 9 -6 10  
MONTH TO DATE 356 377 -21 345  
SINCE MAR 1 1562 1966 -404 1894  
SINCE JUL 1 5739 7328 -1589 6909  
 
COOLING  
TODAY 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 25 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83  
LOWEST 32  
AVERAGE 58  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 92 2014  
MINIMUM TEMPERATURE (F) 41 28 1947  
 
SUNRISE AND SUNSET  
MAY 27 2026...........SUNRISE 5:33 AM MDT SUNSET 8:34 PM MDT  
MAY 28 2026...........SUNRISE 5:32 AM MDT SUNSET 8:35 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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