795  
CDUS45 KRIW 150727  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT FRI AUG 15 2025  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 14 2025  
 
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)  
YESTERDAY  
MAXIMUM 94 2:01 PM 99 2003 87 7 86  
MINIMUM 57 4:57 AM 39 2023 52 5 51  
AVERAGE 76 70 6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.20 2008 0.02 -0.02 T  
MONTH TO DATE 0.22 0.42 -0.20 0.19  
SINCE JUN 1 1.89 2.95 -1.06 1.52  
SINCE JAN 1 6.81 8.46 -1.65 6.78  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 4 2 2 6  
SINCE JUN 1 100 142 -42 76  
SINCE JUL 1 9 16 -7 22  
 
COOLING  
YESTERDAY 11 5 6 4  
MONTH TO DATE 74 89 -15 89  
SINCE JUN 1 376 340 36 377  
SINCE JAN 1 376 344 32 380    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 57 11:00 PM  
LOWEST 12 2:00 PM  
AVERAGE 35  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 95 1992  
1994  
2015  
MINIMUM TEMPERATURE (F) 52 41 1974  
 
SUNRISE AND SUNSET  
AUGUST 15 2025........SUNRISE 6:12 AM MDT SUNSET 8:07 PM MDT  
AUGUST 16 2025........SUNRISE 6:13 AM MDT SUNSET 8:06 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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