Greeley weather in August: Greeley, Colorado: normal highs, lows, rain and records for August
Greeley in August has a normal high of 89°F and a normal low of 57°F, a daily mean of 73°F, falling from 91°F on the 1st to 87°F by the 31st. Measurable precipitation falls on 7 days in a normal August, 1.56 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 14°C, 40 mm of precipitation in August.
- 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 August?
The normal high is 89°F and the normal low 57°F, for a daily mean of 73.3°F. August is 2.2°F cooler than July and 8.0°F warmer than September. August is the 2nd warmest month of the year in Greeley and the 5th wettest. Across the month the normal high falls 4°F, from 91°F on August 1 to 87°F on August 31. From one year to the next August's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 71°F and 76°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 24%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 91°F | 60°F | 24% | 12% |
| August 8 | 90°F | 59°F | 23% | 12% |
| August 15 | 89°F | 58°F | 22% | 11% |
| August 22 | 88°F | 56°F | 21% | 10% |
| August 31 | 87°F | 54°F | 20% | 9% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 91°F | 60°F | 24% | 12% | 14 h 20 min |
| August 2 | 91°F | 60°F | 24% | 12% | 14 h 20 min |
| August 3 | 91°F | 60°F | 24% | 12% | 14 h 20 min |
| August 4 | 91°F | 60°F | 24% | 12% | 14 h 10 min |
| August 5 | 91°F | 59°F | 24% | 12% | 14 h 10 min |
| August 6 | 91°F | 59°F | 24% | 12% | 14 h 10 min |
| August 7 | 91°F | 59°F | 24% | 12% | 14 h 10 min |
| August 8 | 90°F | 59°F | 23% | 12% | 14 h 10 min |
| August 9 | 90°F | 59°F | 23% | 12% | 14 h |
| August 10 | 90°F | 59°F | 23% | 12% | 14 h |
| August 11 | 90°F | 59°F | 23% | 11% | 14 h |
| August 12 | 90°F | 58°F | 23% | 11% | 14 h |
| August 13 | 90°F | 58°F | 23% | 11% | 13 h 50 min |
| August 14 | 90°F | 58°F | 22% | 11% | 13 h 50 min |
| August 15 | 89°F | 58°F | 22% | 11% | 13 h 50 min |
| August 16 | 89°F | 58°F | 22% | 11% | 13 h 50 min |
| August 17 | 89°F | 57°F | 22% | 11% | 13 h 40 min |
| August 18 | 89°F | 57°F | 22% | 10% | 13 h 40 min |
| August 19 | 89°F | 57°F | 22% | 10% | 13 h 40 min |
| August 20 | 89°F | 57°F | 21% | 10% | 13 h 40 min |
| August 21 | 89°F | 56°F | 21% | 10% | 13 h 40 min |
| August 22 | 88°F | 56°F | 21% | 10% | 13 h 30 min |
| August 23 | 88°F | 56°F | 21% | 10% | 13 h 30 min |
| August 24 | 88°F | 56°F | 21% | 10% | 13 h 30 min |
| August 25 | 88°F | 56°F | 21% | 10% | 13 h 30 min |
| August 26 | 88°F | 55°F | 21% | 10% | 13 h 20 min |
| August 27 | 88°F | 55°F | 21% | 9% | 13 h 20 min |
| August 28 | 88°F | 55°F | 20% | 9% | 13 h 20 min |
| August 29 | 87°F | 55°F | 20% | 9% | 13 h 20 min |
| August 30 | 87°F | 54°F | 20% | 9% | 13 h 10 min |
| August 31 | 87°F | 54°F | 20% | 9% | 13 h 10 min |
- Normal high
- 89°FAugust average
- Normal low
- 57°FAugust average
- Precipitation
- 1.56 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 17
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 28
- Sunshine
- 84%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 in Greeley in August?
On a given August day the chance of 0.01 inch or more is 22% on average, highest around August 1 (24%). In all, 1.56 in falls on 7 days of a normal August.
In a normal August in Greeley, 17 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00053553.
What are the records for August in Greeley?
The warmest August temperature on this station's record (since 1967) is 109°F, on August 2, 2026; the coldest is 41°F, on August 31, 1968. The wettest August brought 7.02 in (2008).
The August mean against the 1991-2020 normal of 73.3°F: 2021 75.5°F (+2.2), 2022 77.2°F (+3.9), 2023 74.0°F (+0.7), 2024 75.4°F (+2.1), 2025 73.7°F (+0.4), 2026 76.8°F (+3.5). 6 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.5°F | +2.2°F | 0.45 in |
| 2022 | 77.2°F | +3.9°F | 1.04 in |
| 2023 | 74.0°F | +0.7°F | 1.78 in |
| 2024 | 75.4°F | +2.1°F | 1.36 in |
| 2025 | 73.7°F | +0.4°F | 1.02 in |
| 2026 | 76.8°F | +3.5°F | 1.58 in |
Source: records: ACIS, station USC00053553; recent months: ACIS, station USC00053553. Records and recent months use complete months only.
How does August in Greeley compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, August normal highs run from 68°F in Leadville to 93°F in Lamar; Greeley's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.