558  
CDUS45 KRIW 090732  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
132 AM MDT MON OCT 09 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 8 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 76 3:24 PM 81 2020 63 13 69  
MINIMUM 35 2:13 AM 12 1970 34 1 31  
2000  
AVERAGE 56 48 8  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.49 2017 0.04 -0.04 0.00  
MONTH TO DATE 0.05 0.36 -0.31 0.07  
SINCE SEP 1 0.64 1.31 -0.67 0.88  
SINCE JAN 1 13.12 10.14 2.98 11.27  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.7 1949 0.2 -0.2 0.0  
MONTH TO DATE 0.0 1.5 -1.5 0.0  
SINCE SEP 1 0.0 3.0 -3.0 0.0  
SINCE JUL 1 0.0 3.0 -3.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 17 -8 15  
MONTH TO DATE 104 120 -16 112  
SINCE SEP 1 231 334 -103 256  
SINCE JUL 1 284 379 -95 258  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 20 30 -10 68  
SINCE JAN 1 342 442 -100 544    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 3:00 AM  
LOWEST 17 1:00 PM  
AVERAGE 43  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 63 83 2003  
MINIMUM TEMPERATURE (F) 33 12 2009  
 
SUNRISE AND SUNSET  
OCTOBER 9 2023.......SUNRISE 7:12 AM MDT SUNSET 6:33 PM MDT  
OCTOBER 10 2023.......SUNRISE 7:13 AM MDT SUNSET 6:32 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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