795  
CDUS45 KRIW 040045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT WED SEP 03 2025  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 3 2025  
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 88 2:51 PM 95 2017 82 6 91  
MINIMUM 48 5:49 AM 31 2010 47 1 58  
AVERAGE 68 64 4 75  
 
PRECIPITATION (IN)  
TODAY 0.00 0.86 1943 0.02 -0.02 0.09  
MONTH TO DATE 0.01 0.06 -0.05 0.09  
SINCE SEP 1 0.01 0.06 -0.05 0.09  
SINCE JAN 1 7.32 8.89 -1.57 7.07  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 1 9 -8 0  
SINCE SEP 1 1 9 -8 0  
SINCE JUL 1 11 54 -43 38  
 
COOLING  
TODAY 3 2 1 10  
MONTH TO DATE 4 7 -3 25  
SINCE SEP 1 4 7 -3 25  
SINCE JAN 1 454 419 35 500    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77  
LOWEST 13  
AVERAGE 45  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 100 2022  
MINIMUM TEMPERATURE (F) 46 34 2006  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 6:33 AM MDT SUNSET 7:36 PM MDT  
SEPTEMBER 4 2025.....SUNRISE 6:34 AM MDT SUNSET 7:35 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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