669  
CDUS45 KCYS 122129  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
329 PM MDT SAT SEP 12 2020  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 2020
 
 
VALID AS OF 0300 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 78 158 PM 98 1939 78 0 68  
MINIMUM 37 326 AM 24 1902 45 -8 39  
AVERAGE 58 61 -3 54  
 
PRECIPITATION (IN)  
TODAY 0.00 0.70 1933 0.04 -0.04 0.00  
MONTH TO DATE 0.50 0.63 -0.13 1.37  
SINCE JAN 1 7.63 13.04 -5.41 18.33  
 
DEGREE DAYS  
HEATING  
TODAY 7 5 2 11  
MONTH TO DATE 110 45 65 17  
SINCE SEP 1 110 45 65 17  
SINCE JUL 1 121 82 39 41  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 18 28 -10 44  
SINCE SEP 1 18 28 -10 44  
SINCE JAN 1 745 551 194 501    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 10.7  
 
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 1200 AM  
LOWEST 19 200 PM  
AVERAGE 56  
   
......................................................
 
 
 
THE ALLIANCE NE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 97 1939  
MINIMUM TEMPERATURE (F) 44 28 1903  
 
 
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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