268  
CDUS45 KRIW 020749  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
149 AM MDT SAT SEP 02 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 1 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 91 2:50 PM 97 1995 82 9 96  
MINIMUM 46 1:30 AM 32 1965 47 -1 48  
AVERAGE 69 65 4  
 
PRECIPITATION (IN)  
YESTERDAY T 0.62 1973 0.02 -0.02 0.00  
MONTH TO DATE T 0.02 -0.02 0.00  
SINCE SEP 1 T 0.02 -0.02 0.00  
SINCE JAN 1 12.48 8.85 3.63 10.39  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 0 3 -3 0  
SINCE SEP 1 0 3 -3 0  
SINCE JUL 1 53 48 5 2  
 
COOLING  
YESTERDAY 4 3 1 7  
MONTH TO DATE 4 3 1 7  
SINCE SEP 1 4 3 1 7  
SINCE JAN 1 326 415 -89 483    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 11.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 60 1:00 AM  
LOWEST 16 4:00 PM  
AVERAGE 38  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 98 2019  
MINIMUM TEMPERATURE (F) 47 32 2008  
 
SUNRISE AND SUNSET  
SEPTEMBER 2 2023.....SUNRISE 6:31 AM MDT SUNSET 7:39 PM MDT  
SEPTEMBER 3 2023.....SUNRISE 6:32 AM MDT SUNSET 7:37 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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