075  
CDUS45 KRIW 110728  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
128 AM MDT THU MAY 11 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR MAY 10 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 72 12:52 PM 85 1961 64 8 69  
MINIMUM 31 3:00 AM 20 1990 35 -4 25  
AVERAGE 52 50 2  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.97 1980 0.07 -0.06 0.00  
MONTH TO DATE 0.21 0.68 -0.47 0.54  
SINCE MAR 1 2.35 2.93 -0.58 4.06  
SINCE JAN 1 5.03 3.98 1.05 5.81  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.5 1980 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.5 -1.5 0.2  
SINCE MAR 1 48.3 22.3 26.0 39.4  
SINCE JUL 1 134.3 70.6 63.7 98.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 16 -3 18  
MONTH TO DATE 128 174 -46 179  
SINCE MAR 1 2070 1763 307 1979  
SINCE JUL 1 7771 7125 646 6838  
 
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 30 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 13.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 11:00 PM  
LOWEST 35 2:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 83 1940  
MINIMUM TEMPERATURE (F) 35 17 1968  
 
SUNRISE AND SUNSET  
MAY 11 2023...........SUNRISE 5:47 AM MDT SUNSET 8:18 PM MDT  
MAY 12 2023...........SUNRISE 5:46 AM MDT SUNSET 8:19 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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