265  
CDUS45 KRIW 230733  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
133 AM MDT FRI OCT 23 2026  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 22 2026
 
 
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)  
YESTERDAY  
MAXIMUM 70 1:14 PM 80 2003 57 13 64  
MINIMUM 45 6:13 AM 9 2020 29 16 28  
AVERAGE 58 43 15  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.69 1986 0.03 -0.03 0.00  
MONTH TO DATE 0.84 0.92 -0.08 1.49  
SINCE SEP 1 1.60 1.87 -0.27 4.04  
SINCE JAN 1 7.94 10.70 -2.76 11.35  
 
SNOWFALL (IN)  
YESTERDAY MM 9.4 1995 0.3 MM 0.0  
MONTH TO DATE 0.0 4.7 -4.7 0.3  
SINCE SEP 1 0.0 6.2 -6.2 0.3  
SINCE JUL 1 0.0 6.2 -6.2 0.3  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 22 -15 19  
MONTH TO DATE 210 397 -187 339  
SINCE SEP 1 318 611 -293 452  
SINCE JUL 1 323 656 -333 462  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE SEP 1 47 30 17 17  
SINCE JAN 1 640 442 198 467    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 6:00 AM  
LOWEST 39 12:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 81 2003  
MINIMUM TEMPERATURE (F) 29 -5 2020  
 
SUNRISE AND SUNSET  
OCTOBER 23 2026.......SUNRISE 7:29 AM MDT SUNSET 6:11 PM MDT  
OCTOBER 24 2026.......SUNRISE 7:30 AM MDT SUNSET 6:09 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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