Climatological Report (Annual)
Issued by NWS Cheyenne, WY
Issued by NWS Cheyenne, WY
000 CXUS55 KCYS 011820 CLACYS CLIMATE REPORT NATIONAL WEATHER SERVICE CHEYENNE WY 1120 AM MST SAT JAN 01 2022 ................................... ...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2021... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1871 TO 2021 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 96 09/10 58 38 96 07/12 07/28 07/10 07/07 LOWEST -15 02/14 33 -48 -9 02/04 AVG. MAXIMUM 60.8 59.2 1.6 61.3 AVG. MINIMUM 35.3 34.6 0.7 34.5 MEAN 48.1 46.9 1.2 47.9 DAYS MAX >= 90 33 14.9 18.1 33 DAYS MAX <= 32 33 32.8 0.2 33 DAYS MIN <= 32 166 170.4 -4.4 185 DAYS MIN <= 0 5 7.8 -2.8 5 PRECIPITATION (INCHES) RECORD MAXIMUM 23.69 1942 MINIMUM 5.94 1964 TOTALS 14.29 15.41 -1.12 10.03 DAILY AVG. 0.04 0.04 -0.00 0.03 DAYS >= .01 82 101.5 -19.5 81 DAYS >= .10 32 40.2 -8.2 35 DAYS >= .50 5 7.7 -2.7 2 DAYS >= 1.00 4 1.8 2.2 0 GREATEST 24 HR. TOTAL 2.37 06/08 TO 06/08 0.78 10/25 TO 10/25 STORM TOTAL 2.37 0.19 (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 121.5 1980 24 HR TOTAL 19.8 11/20/1979 TO 11/20/1979 TOTALS 68.8 62.9 5.9 56.0 SINCE 7/1 8.9 23.2 -14.3 MM DAYS >= TRACE 75 45.0 30.0 74 DAYS >= 1.0 16 19.5 -3.5 16 GREATEST SNOW DEPTH 18 03/14 9 10/25 24 HR TOTAL 22.7R 14.0 10/25 TO 10/25 STORM TOTAL 22.7 2.5 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 6619 6959 -340 6746 SINCE 7/1 2194 2812 -618 MM COOLING TOTAL 603 398 205 605 SINCE 1/1 603 397 206 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 11.4 HIGHEST WIND SPEED/DIRECTION 53/280 DATE 01/20 HIGHEST GUST SPEED/DIRECTION 89/270 DATE 01/13 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.26 NUMBER OF DAYS FAIR 249 NUMBER OF DAYS PC 84 NUMBER OF DAYS CLOUDY 32 AVERAGE RH (PERCENT) 53 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 42 MIXED PRECIP 0 HEAVY RAIN 8 RAIN 17 LIGHT RAIN 69 FREEZING RAIN 0 LT FREEZING RAIN 4 HAIL 2 HEAVY SNOW 5 SNOW 13 LIGHT SNOW 71 SLEET 0 FOG 101 FOG W/VIS <= 1/4 MILE 22 HAZE 42 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$