545  
CDUS45 KCYS 200728  
CLICYS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
128 AM MDT TUE MAY 20 2025  
   
...............................  
 
   
..THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR MAY 19 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 57 242 PM 85 2020 66 -9 76  
MINIMUM 41 1159 PM 24 1915 42 -1 45  
AVERAGE 49 54 -5 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.01 1988 0.08 -0.07 0.07  
MONTH TO DATE 0.43 1.44 -1.01 0.18  
SINCE MAR 1 1.62 4.19 -2.57 2.28  
SINCE JAN 1 3.15 5.06 -1.91 3.88  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.3 2017 0.1 -0.1 0.0  
MONTH TO DATE T 2.7 -2.7 0.0  
SINCE MAR 1 6.5 23.7 -17.2 12.5  
SINCE JUL 1 34.3 62.2 -27.9 47.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 12 4 4  
MONTH TO DATE 220 287 -67 287  
SINCE MAR 1 1583 1818 -235 1718  
SINCE JUL 1 6190 6734 -544 6210  
 
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 33 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 19.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 900 PM  
LOWEST 37 200 PM  
AVERAGE 55  
   
......................................................  
 
THE CHEYENNE WYOMING AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 89 1954  
MINIMUM TEMPERATURE (F) 42 22 1931  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 536 AM MDT SUNSET 816 PM MDT  
MAY 21 2025...........SUNRISE 536 AM MDT SUNSET 817 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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