245  
CDUS45 KCYS 120728  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
128 AM MDT SAT SEP 12 2020  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2020
 
 
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)  
YESTERDAY  
MAXIMUM 58 934 AM 97 1994 78 -20 75  
MINIMUM 38 1034 PM 24 1902 45 -7 55  
AVERAGE 48 62 -14 65  
 
PRECIPITATION (IN)  
YESTERDAY 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  
YESTERDAY 17 5 12 0  
MONTH TO DATE 103 40 63 6  
SINCE SEP 1 103 40 63 6  
SINCE JUL 1 114 77 37 30  
 
COOLING  
YESTERDAY 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 8.6  
 
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
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 TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 98 1939  
MINIMUM TEMPERATURE (F) 45 24 1902  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2020.....SUNRISE 629 AM MDT SUNSET 705 PM MDT  
SEPTEMBER 13 2020.....SUNRISE 630 AM MDT SUNSET 703 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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