150  
CDUS45 KRIW 210728  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
1228 AM MST TUE NOV 21 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR NOVEMBER 20 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 41 3:50 PM 61 1966 44 -3 39  
MINIMUM 17 9:31 PM -14 1977 21 -4 22  
2011  
AVERAGE 29 32 -3  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.52 1979 0.02 -0.02 0.00  
MONTH TO DATE 0.01 0.44 -0.43 0.59  
SINCE SEP 1 2.48 2.58 -0.10 1.67  
SINCE JAN 1 14.96 11.41 3.55 12.06  
 
SNOWFALL (IN)  
YESTERDAY 0.0 12.0 1979 0.3 -0.3 0.0  
MONTH TO DATE 0.0 5.8 -5.8 9.4  
SINCE SEP 1 2.8 14.3 -11.5 9.5  
SINCE JUL 1 2.8 14.3 -11.5 9.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 33 3 34  
MONTH TO DATE 455 582 -127 749  
SINCE SEP 1 1192 1407 -215 1447  
SINCE JUL 1 1245 1452 -207 1449  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 20 31 -11 68  
SINCE JAN 1 342 443 -101 544    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 4:00 AM  
LOWEST 48 3:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 61 1989  
2012  
MINIMUM TEMPERATURE (F) 20 -16 1947  
 
SUNRISE AND SUNSET  
NOVEMBER 21 2023......SUNRISE 7:05 AM MST SUNSET 4:38 PM MST  
NOVEMBER 22 2023......SUNRISE 7:07 AM MST SUNSET 4:37 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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