748  
CDUS45 KCYS 181345  
CLIAIA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHEYENNE WY  
745 AM MDT MON AUG 18 2025  
   
...............................  
 
...THE ALLIANCE NEBRASKA AIRPORT CLIMATE SUMMARY FOR AUGUST 17 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 92 337 PM 101 2021 87 5 97  
MINIMUM 57 1159 PM 43 2002 54 3 57  
AVERAGE 75 70 5 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.74 2007 0.04 -0.04 0.00  
MONTH TO DATE 0.35 0.88 -0.53 0.49  
SINCE JUN 1 3.92 6.18 -2.26 3.42  
SINCE JAN 1 10.48 11.63 -1.15 8.89  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 5 -5 14  
SINCE JUN 1 70 106 -36 56  
SINCE JUL 1 2 16 -14 24  
 
COOLING  
YESTERDAY 10 6 4 12  
MONTH TO DATE 141 122 19 130  
SINCE JUN 1 548 446 102 511  
SINCE JAN 1 568 455 113 515    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 700 AM  
LOWEST 29 500 PM  
AVERAGE 57  
   
......................................................  
 
THE ALLIANCE NEBRASKA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 103 2023  
MINIMUM TEMPERATURE (F) 53 42 2001  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 603 AM MDT SUNSET 747 PM MDT  
AUGUST 19 2025........SUNRISE 604 AM MDT SUNSET 745 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab WY Page
The Nexlab NE Page
Main Text Page