197  
CDUS45 KRIW 150727  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
127 AM MDT SUN SEP 15 2024  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 14 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1939 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 2:47 PM 92 1948 77 6 67  
MINIMUM 30 5:46 AM 28 1961 43 -13 43  
AVERAGE 57 60 -3  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.52 1982 0.02 -0.02 0.23  
MONTH TO DATE 0.17 0.35 -0.18 0.54  
SINCE SEP 1 0.17 0.35 -0.18 0.54  
SINCE JAN 1 7.15 9.18 -2.03 12.75  
 
SNOWFALL (IN)  
YESTERDAY MM 3.6 1982 0.0 MM 0.0  
MONTH TO DATE 0.0 0.3 -0.3 0.0  
SINCE SEP 1 0.0 0.3 -0.3 0.0  
SINCE JUL 1 0.0 0.3 -0.3 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 6 2 10  
MONTH TO DATE 22 61 -39 42  
SINCE SEP 1 22 61 -39 42  
SINCE JUL 1 60 106 -46 95  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 51 24 27 19  
SINCE SEP 1 51 24 27 19  
SINCE JAN 1 526 436 90 341    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 9.7  
 
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 63 3:00 AM  
LOWEST 11 1:00 PM  
AVERAGE 37  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 2000  
MINIMUM TEMPERATURE (F) 43 28 1947  
1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2024.....SUNRISE 6:46 AM MDT SUNSET 7:15 PM MDT  
SEPTEMBER 16 2024.....SUNRISE 6:47 AM MDT SUNSET 7:13 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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