Climatological Report (Annual)
Issued by NWS Cheyenne, WY
Issued by NWS Cheyenne, WY
000 CXUS55 KCYS 100118 CLACYS CLIMATE REPORT NATIONAL WEATHER SERVICE CHEYENNE WY 618 PM MST SAT JAN 09 2021 ................................... ...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1871 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 100 06/23/1954 07/11/1939 07/14/1881 LOW -38 01/09/1875 HIGHEST 96 07/12 58 38 95 07/10 07/07 LOWEST -9 02/04 33 -42 -16 AVG. MAXIMUM 61.3 58.6 58.4 AVG. MINIMUM 34.5 34.3 33.2 MEAN 47.9 46.5 1.4 45.8 DAYS MAX >= 90 33 10.4 19 DAYS MAX <= 32 33 32.8 42 DAYS MIN <= 32 185 164.1 187 DAYS MIN <= 0 5 8.1 8 PRECIPITATION (INCHES) RECORD MAXIMUM 23.69 1942 TOTALS 10.03 15.94 -5.91 18.03 DAILY AVG. 0.03 0.04 0.05 DAYS >= .01 81 103.8 116 DAYS >= .10 35 41.0 45 DAYS >= .50 2 8.2 9 DAYS >= 1.00 0 1.8 2 GREATEST 24 HR. TOTAL 0.78 10/25 TO 10/25 STORM TOTAL 0.19 SNOWFALL (INCHES) RECORD MAXIMUM 138.3 1980 TOTALS 56.0 60.3 -4.3 DEGREE DAYS HEATING TOTAL 6746 7111 -365 7332 SINCE 7/1 2630 2905 -275 MM COOLING TOTAL 605 349 256 463 SINCE 1/1 605 348 257 463 .............................................................. WIND (MPH) AVERAGE WIND SPEED 11.8 HIGHEST WIND SPEED/DIRECTION 58/280 DATE 11/14 HIGHEST GUST SPEED/DIRECTION 74/280 DATE 11/14 SKY COVER AVERAGE SKY COVER 0.25 AVERAGE RH (PERCENT) 50 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 50 MIXED PRECIP 0 HEAVY RAIN 8 RAIN 18 LIGHT RAIN 82 FREEZING RAIN 0 LT FREEZING RAIN 9 HAIL 6 HEAVY SNOW 8 SNOW 26 LIGHT SNOW 71 SLEET 1 FOG 85 FOG W/VIS <= 1/4 MILE 25 HAZE 42 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$