875  
CDUS45 KCYS 120345  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
945 PM MDT FRI SEP 11 2020  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2020
 
 
VALID TODAY AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 58 934 AM 97 1994 78 -20 75  
MINIMUM 43 759 PM 24 1902 45 -2 55  
AVERAGE 51 62 -11 65  
 
PRECIPITATION (IN)  
TODAY 0.06 1.90 1973 0.05 0.01 0.03  
MONTH TO DATE 0.50 0.59 -0.09 1.37  
SINCE JAN 1 7.63 13.00 -5.37 18.33  
 
DEGREE DAYS  
HEATING  
TODAY 14 5 9 0  
MONTH TO DATE 100 40 60 6  
SINCE SEP 1 100 40 60 6  
SINCE JUL 1 111 77 34 30  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 18 27 -9 44  
SINCE SEP 1 18 27 -9 44  
SINCE JAN 1 745 550 195 501    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 8.2  
 
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 66 1000 AM  
AVERAGE 80  
   
......................................................
 
 
 
THE ALLIANCE NE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 98 1939  
MINIMUM TEMPERATURE (F) 45 24 1902  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2020.....SUNRISE 628 AM MDT SUNSET 707 PM MDT  
SEPTEMBER 12 2020.....SUNRISE 629 AM MDT SUNSET 705 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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