726  
CDUS45 KRIW 270726  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
126 AM MDT WED SEP 27 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 26 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 83 3:30 PM 91 2015 70 13 79  
MINIMUM 33 5:58 AM 21 1972 38 -5 37  
AVERAGE 58 54 4  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.29 2013 0.05 -0.05 0.00  
MONTH TO DATE 0.59 0.79 -0.20 0.75  
SINCE SEP 1 0.59 0.79 -0.20 0.75  
SINCE JAN 1 13.07 9.62 3.45 11.14  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2013 0.1 -0.1 0.0  
MONTH TO DATE 0.0 1.1 -1.1 0.0  
SINCE SEP 1 0.0 1.1 -1.1 0.0  
SINCE JUL 1 0.0 1.1 -1.1 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 11 -4 7  
MONTH TO DATE 109 164 -55 129  
SINCE SEP 1 109 164 -55 129  
SINCE JUL 1 162 209 -47 131  
 
COOLING  
YESTERDAY 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 18 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 4:00 AM  
LOWEST 9 4:00 PM  
AVERAGE 46  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 89 2015  
MINIMUM TEMPERATURE (F) 38 22 1945  
1964  
 
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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