Colby climate

Colby Weather in May

NOAA 1991-2020 normals for Colby 1SW, 1.5 km from Colby

Average highs run from 68°F on May 1 to 81°F on May 31, and lows from 40°F to 52°F. Normal precipitation for the month is 2.92 in over about 10 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 Colby, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
74°F
Average low
46°F
Precipitation
2.92 in
Snowfall
0.7 in
Record high
103°FMay 30, 2003
Record low
20°FMay 2, 1967
Chance of a freeze
59%
Days of 90°F or more
3.0
Daylight
13 h 53 min to 14 h 45 min
Cloud cover
59%
Humidity
56%
Dew point
44°F
Wind
11.6 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 168°F40°F98°F 199223°F 196729%2%
May 269°F40°F96°F 195920°F 196730%2%
May 369°F40°F96°F 196525°F 201330%1%
May 469°F41°F89°F 196325°F 201330%1%
May 570°F41°F95°F 201229°F 196730%1%
May 670°F42°F96°F 200428°F 198931%1%
May 770°F42°F96°F 200428°F 197631%1%
May 871°F42°F93°F 196227°F 197531%1%
May 971°F43°F97°F 201128°F 199731%1%
May 1072°F43°F94°F 201127°F 198132%1%
May 1172°F44°F92°F 196226°F 197932%1%
May 1272°F44°F99°F 196230°F 199732%1%
May 1373°F45°F99°F 196226°F 196632%1%
May 1473°F45°F93°F 201328°F 200432%1%
May 1574°F46°F98°F 201327°F 198332%1%
May 1674°F46°F93°F 201730°F 201132%0%
May 1775°F46°F97°F 199629°F 197632%0%
May 1875°F47°F94°F 198835°F 198633%0%
May 1976°F47°F102°F 199633°F 198333%0%
May 2076°F48°F95°F 200634°F 196333%0%
May 2176°F48°F98°F 200535°F 201733%0%
May 2277°F49°F97°F 200534°F 201933%0%
May 2377°F49°F96°F 196438°F 195733%0%
May 2478°F49°F96°F 196732°F 200233%0%
May 2578°F50°F98°F 196732°F 200133%0%
May 2679°F50°F98°F 196424°F 199233%0%
May 2779°F51°F99°F 200635°F 199233%0%
May 2880°F51°F101°F 200636°F 199233%0%
May 2980°F52°F99°F 200033°F 199233%0%
May 3081°F52°F103°F 200340°F 197333%0%
May 3181°F52°F98°F 201136°F 196433%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Colby, 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 (CDT).

May 1
sunrise 6:45 AM, sunset 8:38 PM
May 31
sunrise 6:20 AM, sunset 9:05 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00141699 (Colby 1SW), public domain. Records: NOAA GHCN-Daily, station USC00141699, 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.