735  
CDUS45 KRIW 010045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT MON JUN 30 2025  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 30 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 85 4:46 PM 102 1990 85 0 96  
MINIMUM 46 3:41 AM 35 1968 49 -3 50  
AVERAGE 66 67 -1 73  
 
PRECIPITATION (IN)  
TODAY 0.00 0.34 1984 0.04 -0.04 T  
MONTH TO DATE 0.53 1.34 -0.81 0.80  
SINCE JUN 1 0.53 1.34 -0.81 0.80  
SINCE JAN 1 5.45 6.85 -1.40 6.06  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE JUN 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 26.5 71.8 -45.3 42.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 91 127 -36 54  
SINCE JUN 1 91 127 -36 54  
SINCE JUL 1 7022 7487 -465 7001  
 
COOLING  
TODAY 1 4 -3 8  
MONTH TO DATE 75 51 24 103  
SINCE JUN 1 75 51 24 103  
SINCE JAN 1 75 55 20 106    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 5.6  
 
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 93  
LOWEST 17  
AVERAGE 55  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 100 2012  
MINIMUM TEMPERATURE (F) 50 37 1968  
 
SUNRISE AND SUNSET  
JUNE 30 2025..........SUNRISE 5:31 AM MDT SUNSET 8:49 PM MDT  
JULY 1 2025..........SUNRISE 5:31 AM MDT SUNSET 8:48 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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