863  
CDUS45 KRIW 280027  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
627 PM MDT WED SEP 27 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 83 3:26 PM 89 2015 70 13 81  
MINIMUM 44 12:28 AM 22 1945 38 6 34  
1964  
AVERAGE 64 54 10 58  
 
PRECIPITATION (IN)  
TODAY 0.00 0.58 2013 0.04 -0.04 0.00  
MONTH TO DATE 0.59 0.83 -0.24 0.75  
SINCE SEP 1 0.59 0.83 -0.24 0.75  
SINCE JAN 1 13.07 9.66 3.41 11.14  
 
SNOWFALL (IN)  
TODAY 0.0 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.2 -1.2 0.0  
SINCE SEP 1 0.0 1.2 -1.2 0.0  
SINCE JUL 1 0.0 1.2 -1.2 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 1 12 -11 7  
MONTH TO DATE 110 176 -66 136  
SINCE SEP 1 110 176 -66 136  
SINCE JUL 1 163 221 -58 138  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 19 29 -10 68  
SINCE SEP 1 19 29 -10 68  
SINCE JAN 1 341 441 -100 544    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 11.6  
 
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 33  
LOWEST 12  
AVERAGE 23  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 92 2010  
MINIMUM TEMPERATURE (F) 38 15 1945  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2023.....SUNRISE 6:59 AM MDT SUNSET 6:54 PM MDT  
SEPTEMBER 28 2023.....SUNRISE 7:00 AM MDT SUNSET 6:53 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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