Alliance climate

Alliance Weather in May

NOAA 1991-2020 normals for Alliance Muni AP, 7.8 km from Alliance

Average highs run from 62°F on May 1 to 75°F on May 31, and lows from 32°F to 45°F. Normal precipitation for the month is 2.65 in over about 12 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 Alliance, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
69°F
Average low
39°F
Precipitation
2.65 in
Snowfall
1.6 in
Record high
98°FMay 22, 2012
Record low
14°FMay 8, 2010
Chance of a freeze
99%
Days of 90°F or more
0.7
Daylight
14 h 04 min to 15 h 01 min
Cloud cover
63%
Humidity
56%
Dew point
39°F
Wind
11.2 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 162°F32°F84°F 202115°F 200534%6%
May 263°F32°F82°F 201519°F 200434%5%
May 363°F33°F83°F 202316°F 200834%5%
May 464°F33°F89°F 200021°F 202134%5%
May 564°F34°F93°F 200421°F 201335%4%
May 664°F34°F85°F 201722°F 202635%4%
May 765°F35°F89°F 202218°F 201035%4%
May 865°F35°F86°F 201114°F 201036%4%
May 965°F36°F86°F 200421°F 199736%3%
May 1066°F36°F90°F 201223°F 200836%3%
May 1166°F36°F90°F 202622°F 200836%3%
May 1267°F37°F91°F 202522°F 199737%3%
May 1367°F37°F92°F 201324°F 200237%3%
May 1468°F38°F90°F 201323°F 201637%2%
May 1568°F38°F85°F 201922°F 201437%2%
May 1668°F39°F91°F 201226°F 201637%2%
May 1769°F39°F88°F 199823°F 201638%2%
May 1869°F40°F90°F 200831°F 201638%2%
May 1970°F40°F93°F 200923°F 199738%2%
May 2070°F41°F91°F 200525°F 200338%1%
May 2171°F41°F89°F 201223°F 202238%1%
May 2271°F42°F98°F 201219°F 202238%1%
May 2372°F42°F82°F 200526°F 201939%1%
May 2472°F42°F89°F 202623°F 200139%1%
May 2572°F43°F90°F 202624°F 200139%1%
May 2673°F43°F91°F 201832°F 200739%1%
May 2773°F44°F95°F 200632°F 200539%1%
May 2874°F44°F90°F 200027°F 200539%1%
May 2974°F44°F97°F 200332°F 201239%1%
May 3074°F45°F97°F 200231°F 201739%0%
May 3175°F45°F88°F 200234°F 200439%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Alliance, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

May 1
sunrise 5:47 AM, sunset 7:51 PM
May 31
sunrise 5:19 AM, sunset 8:20 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024044 (Alliance Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00024044, 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.