540  
CDUS45 KCYS 200728  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
128 AM MDT TUE MAY 20 2025  
   
...............................  
 
   
..THE ALLIANCE NEBRASKA AIRPORT CLIMATE SUMMARY FOR MAY 19 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 54 1225 PM 93 2009 70 -16 75  
MINIMUM 41 1155 PM 23 1997 40 1 49  
AVERAGE 48 55 -7 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 1.54 1957 0.09 -0.03 0.03  
MONTH TO DATE 1.33 1.54 -0.21 0.78  
SINCE MAR 1 3.00 3.86 -0.86 3.05  
SINCE JAN 1 3.83 4.34 -0.51 4.31  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 10 7 3  
MONTH TO DATE 154 269 -115 239  
SINCE MAR 1 1493 1800 -307 1670  
SINCE JUL 1 6507 7213 -706 6275  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 18 0 18 0  
SINCE MAR 1 20 0 20 2  
SINCE JAN 1 20 0 20 2    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 17.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 58 400 PM  
AVERAGE 79  
   
......................................................  
 
THE ALLIANCE NEBRASKA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 91 1992  
2005  
MINIMUM TEMPERATURE (F) 41 23 1931  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 526 AM MDT SUNSET 810 PM MDT  
MAY 21 2025...........SUNRISE 525 AM MDT SUNSET 811 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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