039  
CDUS45 KRIW 120726  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT SAT JUL 12 2025  
   
...............................  
 
   
..THE CASPER WY CLIMATE SUMMARY FOR JULY 11 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 73 3:34 PM 103 1954 89 -16 100  
MINIMUM 50 11:45 PM 39 1983 52 -2 56  
AVERAGE 62 71 -9  
 
PRECIPITATION (IN)  
YESTERDAY T 0.88 1951 0.04 -0.04 0.00  
MONTH TO DATE 0.15 0.41 -0.26 0.11  
SINCE JUN 1 0.68 1.75 -1.07 0.91  
SINCE JAN 1 5.60 7.26 -1.66 6.17  
 
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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 0 3 0  
MONTH TO DATE 3 9 -6 16  
SINCE JUN 1 94 135 -41 70  
SINCE JUL 1 3 9 -6 16  
 
COOLING  
YESTERDAY 0 6 -6 13  
MONTH TO DATE 85 56 29 26  
SINCE JUN 1 160 107 53 129  
SINCE JAN 1 160 111 49 132    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 12.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 5:00 AM  
LOWEST 40 12:00 AM  
AVERAGE 55  
   
......................................................  
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 104 1954  
MINIMUM TEMPERATURE (F) 53 38 2008  
 
SUNRISE AND SUNSET  
JULY 12 2025..........SUNRISE 5:39 AM MDT SUNSET 8:44 PM MDT  
JULY 13 2025..........SUNRISE 5:39 AM MDT SUNSET 8:44 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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