223  
CDUS45 KCYS 170728  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
127 AM MDT SUN MAY 17 2020  
 
   
...............................
 
 
   
..THE ALLIANCE NE AIRPORT CLIMATE SUMMARY FOR MAY 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 65 134 PM 92 1934 71 -6 82  
MINIMUM 43 1159 PM 26 2016 39 4 46  
AVERAGE 54 55 -1 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 1.79 1991 0.07 0.02 0.03  
MONTH TO DATE 2.17 1.20 0.97 0.90  
SINCE JAN 1 3.51 4.06 -0.55 3.78  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 10 1 1  
MONTH TO DATE 262 208 54 283  
SINCE MAR 1 1839 1693 146 2026  
SINCE JUL 1 7168 7097 71 7091  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 12.7  
 
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1200 AM  
LOWEST 48 200 PM  
AVERAGE 72  
   
......................................................
 
 
 
THE ALLIANCE NE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 94 1934  
MINIMUM TEMPERATURE (F) 40 23 2016  
 
 
SUNRISE AND SUNSET  
MAY 17 2020...........SUNRISE 528 AM MDT SUNSET 808 PM MDT  
MAY 18 2020...........SUNRISE 527 AM MDT SUNSET 809 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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