582  
CDUS45 KRIW 150102  
CLICPR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RIVERTON WY  
702 PM MDT THU SEP 14 2023  
   
...............................
 
 
   
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 14 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 67 2:30 PM 92 1948 77 -10 79  
MINIMUM 52 4:59 PM 28 1961 43 9 54  
AVERAGE 60 60 0 67  
 
PRECIPITATION (IN)  
TODAY 0.22 0.52 1982 0.02 0.20 0.03  
MONTH TO DATE 0.53 0.35 0.18 0.43  
SINCE SEP 1 0.53 0.35 0.18 0.43  
SINCE JAN 1 13.01 9.18 3.83 10.82  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 0.0 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 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 5 6 -1 0  
MONTH TO DATE 37 61 -24 42  
SINCE SEP 1 37 61 -24 42  
SINCE JUL 1 90 106 -16 44  
 
COOLING  
TODAY 0 1 -1 2  
MONTH TO DATE 19 24 -5 67  
SINCE SEP 1 19 24 -5 67  
SINCE JAN 1 341 436 -95 543    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97  
LOWEST 48  
AVERAGE 73  
   
......................................................
 
 
THE CASPER WY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 2000  
MINIMUM TEMPERATURE (F) 43 28 1947  
1965  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2023.....SUNRISE 6:44 AM MDT SUNSET 7:18 PM MDT  
SEPTEMBER 15 2023.....SUNRISE 6:45 AM MDT SUNSET 7:16 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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