Greeley climate

Greeley Weather in May

NOAA 1991-2020 normals for Greeley Unc, 2.5 km from Greeley

Average highs run from 69°F on May 1 to 81°F on May 31, and lows from 39°F to 50°F. Normal precipitation for the month is 2.65 in over about 11 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 Greeley, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
75°F
Average low
45°F
Precipitation
2.65 in
Snowfall
0.5 in
Record high
101°FMay 29, 2003
Record low
21°FMay 2, 2013
Chance of a freeze
57%
Days of 90°F or more
2.1
Daylight
13 h 57 min to 14 h 51 min
Cloud cover
61%
Humidity
50%
Dew point
37°F
Wind
8.7 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 169°F39°F91°F 202127°F 198930%3%
May 270°F40°F88°F 200621°F 201330%3%
May 370°F40°F85°F 198624°F 200830%3%
May 470°F40°F91°F 200031°F 197930%3%
May 571°F41°F95°F 200429°F 201331%2%
May 671°F41°F95°F 200430°F 202631%2%
May 771°F41°F92°F 202226°F 197831%2%
May 872°F42°F93°F 200428°F 201032%2%
May 972°F42°F91°F 200429°F 200232%2%
May 1072°F42°F90°F 201828°F 197932%2%
May 1173°F43°F93°F 202229°F 200832%1%
May 1273°F43°F92°F 200725°F 198333%1%
May 1374°F44°F95°F 200729°F 201033%1%
May 1474°F44°F95°F 200730°F 196733%1%
May 1574°F44°F91°F 197832°F 197033%1%
May 1675°F45°F95°F 199630°F 196833%1%
May 1775°F45°F92°F 202228°F 196834%1%
May 1875°F45°F95°F 200833°F 201734%1%
May 1976°F46°F93°F 200832°F 197134%1%
May 2076°F46°F95°F 200531°F 201934%1%
May 2177°F46°F98°F 200531°F 201934%1%
May 2277°F47°F92°F 201232°F 201934%1%
May 2377°F47°F92°F 198933°F 202434%0%
May 2478°F47°F91°F 196735°F 197534%0%
May 2578°F48°F91°F 202636°F 200234%0%
May 2679°F48°F93°F 201237°F 198034%0%
May 2779°F48°F96°F 200638°F 199234%0%
May 2879°F49°F93°F 197436°F 198434%0%
May 2980°F49°F101°F 200338°F 197534%0%
May 3080°F49°F95°F 199439°F 197934%0%
May 3181°F50°F98°F 200237°F 198333%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greeley, 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 5:58 AM, sunset 7:55 PM
May 31
sunrise 5:31 AM, sunset 8:22 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00053553 (Greeley Unc), public domain. Records: NOAA GHCN-Daily, station USC00053553, 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.