Greeley weather in May: Greeley, Colorado: normal highs, lows, rain and records for May
Greeley in May has a normal high of 75°F and a normal low of 45°F, a daily mean of 60°F, rising from 69°F on the 1st to 81°F by the 31st. Measurable precipitation falls on 11 days in a normal May, 2.65 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 7°C, 67 mm of precipitation and 1 cm of snow in May.
- NOAA stationGreeley Unc
- Station IDUSC00053553
- Location40.40°N 104.70°W
- Elevation4,715 ft (1,437 m)
- From the center4 miles
- Population114,363
- Jan 44° 18°
- Feb 48° 20°
- Mar 59° 28°
- Apr 66° 35°
- May 75° 45°
- Jun 86° 54°
- Jul 92° 59°
- Aug 89° 57°
- Sep 82° 49°
- Oct 68° 37°
- Nov 54° 26°
- Dec 43° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Greeley in May?
The normal high is 75°F and the normal low 45°F, for a daily mean of 59.6°F. May is 8.9°F warmer than April and 10.1°F cooler than June. May is the 5th warmest month of the year in Greeley and the wettest. Across the month the normal high rises 12°F, from 69°F on May 1 to 81°F on May 31. From one year to the next May's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Mays in three average between 57°F and 63°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 69°F | 39°F | 30% | 17% |
| May 8 | 72°F | 42°F | 32% | 17% |
| May 15 | 74°F | 44°F | 33% | 18% |
| May 22 | 77°F | 47°F | 34% | 18% |
| May 31 | 81°F | 50°F | 33% | 17% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 69°F | 39°F | 30% | 17% | 13 h 50 min |
| May 2 | 70°F | 40°F | 30% | 17% | 14 h |
| May 3 | 70°F | 40°F | 30% | 17% | 14 h |
| May 4 | 70°F | 40°F | 30% | 17% | 14 h |
| May 5 | 71°F | 41°F | 31% | 17% | 14 h |
| May 6 | 71°F | 41°F | 31% | 17% | 14 h |
| May 7 | 71°F | 41°F | 31% | 17% | 14 h 10 min |
| May 8 | 72°F | 42°F | 32% | 17% | 14 h 10 min |
| May 9 | 72°F | 42°F | 32% | 17% | 14 h 10 min |
| May 10 | 72°F | 42°F | 32% | 17% | 14 h 10 min |
| May 11 | 73°F | 43°F | 32% | 17% | 14 h 20 min |
| May 12 | 73°F | 43°F | 33% | 17% | 14 h 20 min |
| May 13 | 74°F | 44°F | 33% | 17% | 14 h 20 min |
| May 14 | 74°F | 44°F | 33% | 17% | 14 h 20 min |
| May 15 | 74°F | 44°F | 33% | 18% | 14 h 20 min |
| May 16 | 75°F | 45°F | 33% | 18% | 14 h 30 min |
| May 17 | 75°F | 45°F | 34% | 18% | 14 h 30 min |
| May 18 | 75°F | 45°F | 34% | 18% | 14 h 30 min |
| May 19 | 76°F | 46°F | 34% | 18% | 14 h 30 min |
| May 20 | 76°F | 46°F | 34% | 18% | 14 h 30 min |
| May 21 | 77°F | 46°F | 34% | 18% | 14 h 30 min |
| May 22 | 77°F | 47°F | 34% | 18% | 14 h 40 min |
| May 23 | 77°F | 47°F | 34% | 18% | 14 h 40 min |
| May 24 | 78°F | 47°F | 34% | 18% | 14 h 40 min |
| May 25 | 78°F | 48°F | 34% | 18% | 14 h 40 min |
| May 26 | 79°F | 48°F | 34% | 17% | 14 h 40 min |
| May 27 | 79°F | 48°F | 34% | 17% | 14 h 40 min |
| May 28 | 79°F | 49°F | 34% | 17% | 14 h 50 min |
| May 29 | 80°F | 49°F | 34% | 17% | 14 h 50 min |
| May 30 | 80°F | 49°F | 34% | 17% | 14 h 50 min |
| May 31 | 81°F | 50°F | 33% | 17% | 14 h 50 min |
- Normal high
- 75°FMay average
- Normal low
- 45°FMay average
- Precipitation
- 2.65 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.5 inmonth total
- Days at 90°F or more
- 2
- Nights at 32°F or colder
- 2
- Daylight
- 13 h 50 min to 14 h 50 minMay 1 to May 31
- Days at 70°F or more
- 22
- Days at 80°F or more
- 12
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00053553; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Greeley in May?
On a given May day the chance of 0.01 inch or more is 33% on average, highest around May 24 (34%). In all, 2.65 in falls on 11 days of a normal May, 1 of them with an inch or more.
In a normal May in Greeley, 2 days reach 90°F, 2 nights fall to freezing and snowfall averages 0.5 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00053553.
What are the records for May in Greeley?
The warmest May temperature on this station's record (since 1967) is 101°F, on May 29, 2003; the coldest is 21°F, on May 2, 2013. The wettest May brought 7.53 in (2017); the snowiest, 6.0 inches (1973).
The May mean against the 1991-2020 normal of 59.6°F: 2021 60.0°F (+0.4), 2022 60.8°F (+1.2), 2023 62.4°F (+2.8), 2024 60.7°F (+1.1), 2025 59.2°F (−0.4), 2026 61.6°F (+2.0). 5 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.0°F | +0.4°F | 3.42 in |
| 2022 | 60.8°F | +1.2°F | 1.49 in |
| 2023 | 62.4°F | +2.8°F | 5.42 in |
| 2024 | 60.7°F | +1.1°F | 3.73 in |
| 2025 | 59.2°F | −0.4°F | 3.20 in |
| 2026 | 61.6°F | +2.0°F | 2.18 in |
Source: records: ACIS, station USC00053553; recent months: ACIS, station USC00053553. Records and recent months use complete months only.
How does May in Greeley compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, May normal highs run from 54°F in Leadville to 80°F in Lamar; Greeley's is 75°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.