Climate averages 1991–2020
Greeley weather
in April.
A mild, moderately wet month: the 7th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Greeley: daytime highs average 16.9°C and nights cool to about 2.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 49 mm of rain on roughly 9 days, which makes April a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 15 min on an average April day.
The nearest other city in this atlas is Loveland (31 km away). In April its highs average 14.7°C, 2.2°C cooler than Greeley, with 64 mm of rain.
Among the 498 cities listed in the United States, Greeley ranks joint 317th of 498 for the warmest April highs and joint 144th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Greeley is 2.5°C cooler than that mean.
From April to May, average highs rise by 5.1°C to 22.0°C, and monthly rainfall rises from 49 mm to 67 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Greeley climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.4°C-7.4°C | -7.4°C | 11 | 2.9 | 9.610 h |
| February | 7.4°C-6.3°C | -6.3°C | 11 | 3.4 | 10.611 h |
| March | 12.9°C-2.3°C | -2.3°C | 29 | 5.4 | 11.912 h |
| April, selected | 16.9°C2.2°C | 2.2°C | 49 | 8.5 | 13.313 h |
| May | 22.0°C7.7°C | 7.7°C | 67 | 9.7 | 14.414 h |
| June | 28.3°C13.3°C | 13.3°C | 40 | 7.3 | 15.015 h |
| July | 31.9°C17.1°C | 17.1°C | 36 | 7.4 | 14.815 h |
| August | 30.5°C16.0°C | 16.0°C | 31 | 6.6 | 13.814 h |
| September | 26.0°C11.3°C | 11.3°C | 27 | 4.6 | 12.513 h |
| October | 17.9°C3.9°C | 3.9°C | 30 | 5.1 | 11.211 h |
| November | 10.4°C-2.7°C | -2.7°C | 16 | 3.8 | 10.010 h |
| December | 4.9°C-6.8°C | -6.8°C | 11 | 2.9 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Loveland in AprilUnited States · 31 kmHigh 14.7°C · Low 0.2°C · 64 mm rain
- Fort Collins in AprilUnited States · 36 kmHigh 14.5°C · Low 0.3°C · 64 mm rain
- Longmont in AprilUnited States · 44 kmHigh 14.8°C · Low 0.4°C · 67 mm rain
- Thornton in AprilUnited States · 66 kmHigh 14.4°C · Low -0.4°C · 70 mm rain
- Boulder in AprilUnited States · 66 kmHigh 13.7°C · Low -0.4°C · 78 mm rain
- Westminster (Colorado), United States in AprilUnited States · 71 kmHigh 14.4°C · Low -0.5°C · 70 mm rain
- Arvada in AprilUnited States · 76 kmHigh 14.4°C · Low -0.6°C · 70 mm rain
- Aurora (Colorado), United States in AprilUnited States · 78 kmHigh 15.3°C · Low 0.9°C · 55 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Greeley) is explained once on the Greeley year overview and on the Sources, method and limits page.