435  
CDUS45 KRIW 090045  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
645 PM MDT FRI SEP 08 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 8 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 88 2:02 PM 92 1994 80 8 88  
1998  
2005  
MINIMUM 43 5:52 AM 29 1962 45 -2 53  
2020  
AVERAGE 66 62 4 71  
 
PRECIPITATION (IN)  
TODAY 0.00 0.84 1989 0.03 -0.03 0.05  
MONTH TO DATE 0.23 0.19 0.04 0.05  
SINCE SEP 1 0.23 0.19 0.04 0.05  
SINCE JAN 1 12.71 9.02 3.69 10.44  
 
SNOWFALL (IN)  
TODAY MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 T  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 0  
MONTH TO DATE 10 28 -18 0  
SINCE SEP 1 10 28 -18 0  
SINCE JUL 1 63 73 -10 2  
 
COOLING  
TODAY 1 2 -1 6  
MONTH TO DATE 19 17 2 65  
SINCE SEP 1 19 17 2 65  
SINCE JAN 1 341 429 -88 541    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82  
LOWEST 12  
AVERAGE 47  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 95 2021  
MINIMUM TEMPERATURE (F) 45 24 2020  
 
SUNRISE AND SUNSET  
SEPTEMBER 8 2023.....SUNRISE 6:38 AM MDT SUNSET 7:28 PM MDT  
SEPTEMBER 9 2023.....SUNRISE 6:39 AM MDT SUNSET 7:27 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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