CXUS55 KCYS 012333 CLACYS CLIMATE REPORT NATIONAL WEATHER SERVICE CHEYENNE WY 433 PM MST THU JAN 01 2026 ................................... ...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1871 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 100 06/23/1954 07/11/1939 07/14/1881 LOW -38 01/09/1875 HIGHEST 94 07/09 58 36 96 07/13 07/14 LOWEST -12 01/20 33 -45 -23 01/13 01/13 AVG. MAXIMUM 61.2 59.2 2.0 62.5 AVG. MINIMUM 35.5 34.6 0.9 36.0 MEAN 48.4 46.9 1.5 49.2 DAYS MAX >= 90 14 14.9 -0.9 22 DAYS MAX <= 32 32 32.8 -0.8 19 DAYS MIN <= 32 150 170.4 -20.4 162 DAYS MIN <= 0 11 7.8 3.2 7 PRECIPITATION (INCHES) RECORD MAXIMUM 23.69 1942 MINIMUM 5.94 1964 TOTALS 15.39 15.41 -0.02 10.33 DAILY AVG. 0.04 0.04 -0.00 0.03 DAYS >= .01 107 101.5 5.5 78 DAYS >= .10 41 40.2 0.8 28 DAYS >= .50 6 7.7 -1.7 3 DAYS >= 1.00 1 1.8 -0.8 1 GREATEST 24 HR. TOTAL 1.02 06/16 TO 06/17 1.55 08/12 TO 08/13 STORM TOTAL 1.01 1.11 (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 121.5 1980 24 HR TOTAL 22.7 MM TOTALS 35.1 62.9 -27.8 36.6 SINCE 7/1 5.9 23.2 -17.3 MM DAYS >= TRACE 65 45.0 20.0 52 DAYS >= 1.0 14 19.5 -5.5 11 GREATEST SNOW DEPTH 7 02/19 5 03/15 03/15 24 HR TOTAL 8.6 02/18 TO 02/19 10.6 03/14 TO 03/14 STORM TOTAL 8.6 5.8 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 6309 6959 -650 6193 SINCE 7/1 2129 2812 -683 MM COOLING TOTAL 383 398 -15 528 SINCE 1/1 383 397 -14 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 11.3 HIGHEST WIND SPEED/DIRECTION 54/280 DATE 12/09 HIGHEST GUST SPEED/DIRECTION 75/270 DATE 12/19 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.27 NUMBER OF DAYS FAIR 239 NUMBER OF DAYS PC 94 NUMBER OF DAYS CLOUDY 30 AVERAGE RH (PERCENT) 54 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 64 MIXED PRECIP 0 HEAVY RAIN 21 RAIN 35 LIGHT RAIN 106 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 4 HEAVY SNOW 2 SNOW 8 LIGHT SNOW 56 SLEET 1 FOG 102 FOG W/VIS <= 1/4 MILE 24 HAZE 21 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$