739  
CDUS45 KRIW 300045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT MON JUN 29 2026  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 29 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 72 3:43 PM 99 2002 85 -13 87  
2007  
MINIMUM 49 3:21 AM 37 2024 49 0 52  
AVERAGE 61 67 -6 70  
 
PRECIPITATION (IN)  
TODAY T 0.55 1947 0.04 -0.04 0.00  
MONTH TO DATE 0.55 1.30 -0.75 0.53  
SINCE JUN 1 0.55 1.30 -0.75 0.53  
SINCE JAN 1 4.20 6.81 -2.61 5.45  
 
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 30.1 71.8 -41.7 26.5  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 4 2 2 0  
MONTH TO DATE 92 125 -33 91  
SINCE JUN 1 92 125 -33 91  
SINCE JUL 1 5840 7485 -1645 7022  
 
COOLING  
TODAY 0 4 -4 5  
MONTH TO DATE 35 49 -14 74  
SINCE JUN 1 35 49 -14 74  
SINCE JAN 1 36 53 -17 74    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 48 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 65 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 24.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 47  
LOWEST 18  
AVERAGE 33  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 102 1990  
MINIMUM TEMPERATURE (F) 49 35 1968  
 
SUNRISE AND SUNSET  
JUNE 29 2026..........SUNRISE 5:30 AM MDT SUNSET 8:49 PM MDT  
JUNE 30 2026..........SUNRISE 5:30 AM MDT SUNSET 8:49 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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