475  
CDUS45 KRIW 090736  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
136 AM MDT TUE MAY 09 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MAY 8 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 68 3:36 PM 84 1987 63 5 62  
MINIMUM 35 5:05 AM 18 2010 34 1 32  
AVERAGE 52 49 3  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 1.66 1995 0.08 -0.03 T  
MONTH TO DATE 0.17 0.54 -0.37 0.32  
SINCE MAR 1 2.31 2.79 -0.48 3.84  
SINCE JAN 1 4.99 3.84 1.15 5.59  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.9 1979 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.2 -1.2 0.0  
SINCE MAR 1 48.3 22.0 26.3 39.2  
SINCE JUL 1 134.3 70.3 64.0 97.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 16 -3 18  
MONTH TO DATE 104 142 -38 136  
SINCE MAR 1 2046 1731 315 1936  
SINCE JUL 1 7747 7093 654 6795  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 5:00 AM  
LOWEST 16 2:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 83 1962  
MINIMUM TEMPERATURE (F) 35 18 2002  
 
SUNRISE AND SUNSET  
MAY 9 2023...........SUNRISE 5:50 AM MDT SUNSET 8:16 PM MDT  
MAY 10 2023...........SUNRISE 5:49 AM MDT SUNSET 8:17 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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