986  
CDUS45 KCYS 170737  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
129 AM MDT THU SEP 17 2020  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 70 416 PM 96 2000 76 -6 83  
MINIMUM 48 1125 PM 28 1903 43 5 55  
AVERAGE 59 59 0 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.84 1950 0.04 -0.04 0.00  
MONTH TO DATE 0.50 0.80 -0.30 1.37  
SINCE JAN 1 7.63 13.21 -5.58 18.33  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 7 -1 0  
MONTH TO DATE 119 70 49 28  
SINCE SEP 1 119 70 49 28  
SINCE JUL 1 130 107 23 52  
 
COOLING  
YESTERDAY 0 1 -1 4  
MONTH TO DATE 24 32 -8 51  
SINCE SEP 1 24 32 -8 51  
SINCE JAN 1 751 555 196 508    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.7  
 
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 400 AM  
LOWEST 37 100 PM  
AVERAGE 62  
   
......................................................
 
 
 
THE ALLIANCE NE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 100 2000  
MINIMUM TEMPERATURE (F) 42 29 1965  
1912  
1903  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2020.....SUNRISE 634 AM MDT SUNSET 656 PM MDT  
SEPTEMBER 18 2020.....SUNRISE 635 AM MDT SUNSET 654 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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