080  
CDUS45 KRIW 100731  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
131 AM MDT WED MAY 10 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MAY 9 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 71 3:38 PM 83 1962 64 7 52  
MINIMUM 37 11:59 PM 18 2002 35 2 27  
AVERAGE 54 49 5  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.60 2011 0.07 -0.04 0.22  
MONTH TO DATE 0.20 0.61 -0.41 0.54  
SINCE MAR 1 2.34 2.86 -0.52 4.06  
SINCE JAN 1 5.02 3.91 1.11 5.81  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.3 2015 0.2 -0.2 0.2  
MONTH TO DATE 0.0 1.4 -1.4 0.2  
SINCE MAR 1 48.3 22.2 26.1 39.4  
SINCE JUL 1 134.3 70.5 63.8 98.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 16 -5 25  
MONTH TO DATE 115 158 -43 161  
SINCE MAR 1 2057 1747 310 1961  
SINCE JUL 1 7758 7109 649 6820  
 
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 29 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 18 12:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 85 1961  
MINIMUM TEMPERATURE (F) 35 20 1990  
 
SUNRISE AND SUNSET  
MAY 10 2023...........SUNRISE 5:49 AM MDT SUNSET 8:17 PM MDT  
MAY 11 2023...........SUNRISE 5:47 AM MDT SUNSET 8:18 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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