Cheyenne climate

Cheyenne Weather in May

NOAA 1991-2020 normals for Cheyenne WFO, 1.7 km from Cheyenne

Average highs run from 58°F on May 1 to 71°F on May 31, and lows from 34°F to 45°F. Normal precipitation for the month is 2.53 in over about 13 wet days.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Cheyenne, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
64°F
Average low
40°F
Precipitation
2.53 in
Snowfall
4.0 in
Record high
91°FMay 29, 2000
Record low
9°FMay 2, 2013
Chance of a freeze
95%
Daylight
14 h 00 min to 14 h 56 min
Cloud cover
63%
Humidity
54%
Dew point
34°F
Wind
9.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 158°F34°F81°F 195916°F 201341%16%
May 259°F34°F82°F 19479°F 201341%15%
May 359°F35°F80°F 194019°F 200841%15%
May 459°F35°F84°F 200023°F 195042%14%
May 560°F35°F86°F 200020°F 191742%14%
May 660°F36°F84°F 200413°F 191742%13%
May 761°F36°F83°F 196623°F 193842%13%
May 861°F36°F83°F 193424°F 192742%12%
May 961°F37°F84°F 196220°F 200243%12%
May 1062°F37°F82°F 196122°F 194643%11%
May 1162°F38°F83°F 194018°F 194643%11%
May 1263°F38°F86°F 194117°F 195343%10%
May 1363°F38°F84°F 194421°F 195343%10%
May 1463°F39°F84°F 201325°F 192643%9%
May 1564°F39°F83°F 196426°F 191643%9%
May 1664°F40°F86°F 199625°F 194243%8%
May 1765°F40°F86°F 196424°F 194243%8%
May 1865°F40°F86°F 199620°F 193043%7%
May 1966°F41°F85°F 202024°F 191543%7%
May 2066°F41°F89°F 195422°F 193143%6%
May 2166°F42°F86°F 196424°F 193142%6%
May 2267°F42°F87°F 201226°F 202242%5%
May 2367°F42°F85°F 198930°F 193042%5%
May 2468°F43°F83°F 196430°F 200742%4%
May 2568°F43°F86°F 196429°F 195042%4%
May 2669°F43°F86°F 196930°F 195042%4%
May 2769°F44°F90°F 196929°F 194741%3%
May 2869°F44°F88°F 200022°F 194741%3%
May 2970°F44°F91°F 200016°F 194741%3%
May 3070°F45°F88°F 196631°F 194741%2%
May 3171°F45°F87°F 200230°F 191741%2%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cheyenne, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

May 1
sunrise 5:57 AM, sunset 7:57 PM
May 31
sunrise 5:29 AM, sunset 8:25 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00481676 (Cheyenne WFO), public domain. Records: NOAA GHCN-Daily, station USW00024018, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.