Pullman weather in August: Pullman, Washington: normal highs, lows, rain and records for August
Pullman in August has a normal high of 83°F and a normal low of 50°F, a daily mean of 67°F, falling from 86°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 4 days in a normal August, 0.49 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 10°C, 12 mm of precipitation in August.
- NOAA stationPullman Moscow Regional Airport
- Station IDUSW00094129
- Location46.74°N 117.11°W
- Elevation2,551 ft (778 m)
- Population33,543
- Jan 38° 28°
- Feb 42° 29°
- Mar 49° 33°
- Apr 56° 37°
- May 65° 44°
- Jun 72° 48°
- Jul 83° 51°
- Aug 83° 50°
- Sep 74° 45°
- Oct 59° 38°
- Nov 45° 33°
- Dec 37° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pullman in August?
The normal high is 83°F and the normal low 50°F, for a daily mean of 66.9°F. August is 0.1°F cooler than July and 7.1°F warmer than September. August is the 2nd warmest month of the year in Pullman and the 11th wettest. Across the month the normal high falls 6°F, from 86°F on August 1 to 80°F on August 31. From one year to the next August's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 65°F and 69°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 12%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 86°F | 52°F | 9% | 4% |
| August 8 | 85°F | 51°F | 10% | 4% |
| August 15 | 84°F | 51°F | 11% | 4% |
| August 22 | 82°F | 50°F | 11% | 4% |
| August 31 | 80°F | 49°F | 12% | 5% |
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 | 86°F | 52°F | 9% | 4% | 14 h 50 min |
| August 2 | 86°F | 52°F | 10% | 4% | 14 h 50 min |
| August 3 | 86°F | 52°F | 10% | 4% | 14 h 50 min |
| August 4 | 86°F | 52°F | 10% | 4% | 14 h 50 min |
| August 5 | 86°F | 52°F | 10% | 4% | 14 h 40 min |
| August 6 | 86°F | 52°F | 10% | 4% | 14 h 40 min |
| August 7 | 85°F | 51°F | 10% | 4% | 14 h 40 min |
| August 8 | 85°F | 51°F | 10% | 4% | 14 h 40 min |
| August 9 | 85°F | 51°F | 10% | 4% | 14 h 30 min |
| August 10 | 85°F | 51°F | 10% | 4% | 14 h 30 min |
| August 11 | 85°F | 51°F | 10% | 4% | 14 h 30 min |
| August 12 | 85°F | 51°F | 11% | 4% | 14 h 20 min |
| August 13 | 84°F | 51°F | 11% | 4% | 14 h 20 min |
| August 14 | 84°F | 51°F | 11% | 4% | 14 h 20 min |
| August 15 | 84°F | 51°F | 11% | 4% | 14 h 20 min |
| August 16 | 84°F | 51°F | 11% | 4% | 14 h 10 min |
| August 17 | 83°F | 50°F | 11% | 4% | 14 h 10 min |
| August 18 | 83°F | 50°F | 11% | 4% | 14 h 10 min |
| August 19 | 83°F | 50°F | 11% | 4% | 14 h |
| August 20 | 83°F | 50°F | 11% | 4% | 14 h |
| August 21 | 82°F | 50°F | 11% | 4% | 14 h |
| August 22 | 82°F | 50°F | 11% | 4% | 14 h |
| August 23 | 82°F | 50°F | 12% | 5% | 13 h 50 min |
| August 24 | 82°F | 50°F | 12% | 5% | 13 h 50 min |
| August 25 | 81°F | 49°F | 12% | 5% | 13 h 50 min |
| August 26 | 81°F | 49°F | 12% | 5% | 13 h 40 min |
| August 27 | 81°F | 49°F | 12% | 5% | 13 h 40 min |
| August 28 | 81°F | 49°F | 12% | 5% | 13 h 40 min |
| August 29 | 80°F | 49°F | 12% | 5% | 13 h 30 min |
| August 30 | 80°F | 49°F | 12% | 5% | 13 h 30 min |
| August 31 | 80°F | 49°F | 12% | 5% | 13 h 30 min |
- Normal high
- 83°FAugust average
- Normal low
- 50°FAugust average
- Precipitation
- 0.49 inmonth total
- Days with precipitation
- 40.01 inch or more
- Days at 90°F or more
- 8
- Daylight
- 14 h 50 min to 13 h 30 minAugust 1 to August 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 22
- Sunshine
- 88%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094129; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pullman in August?
On a given August day the chance of 0.01 inch or more is 11% on average, highest around August 31 (12%). In all, 0.49 in falls on 4 days of a normal August.
In a normal August in Pullman, 8 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094129.
What are the records for August in Pullman?
The warmest August temperature on Pullman's official record (since 1893) is 110°F, on August 4, 1961; the coldest is 32°F, on August 24, 1908. The wettest August brought 3.81 in (1989).
The August mean against the 1991-2020 normal of 66.9°F: 2021 67.9°F (+1.0), 2022 71.2°F (+4.3), 2023 68.4°F (+1.5), 2024 67.4°F (+0.5), 2025 69.5°F (+2.6), 2026 67.8°F (+0.9). 6 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.9°F | +1.0°F | 0.36 in |
| 2022 | 71.2°F | +4.3°F | 0.10 in |
| 2023 | 68.4°F | +1.5°F | 0.69 in |
| 2024 | 67.4°F | +0.5°F | 0.53 in |
| 2025 | 69.5°F | +2.6°F | 0.19 in |
| 2026 | 67.8°F | +0.9°F | 0.00 in |
Source: records: ACIS, NWS threaded record PUWthr; recent months: ACIS, station USW00094129. Records and recent months use complete months only.
How does August in Pullman compare across Washington?
Across the 96 places PlainClimate covers in Washington, August normal highs run from 67°F in Long Beach to 91°F in Pasco; Pullman's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.