Yakima weather in August: Yakima, Washington: normal highs, lows, rain and records for August
Yakima in August has a normal high of 89°F and a normal low of 53°F, a daily mean of 71°F, falling from 92°F on the 1st to 85°F by the 31st. Measurable precipitation falls on 2 days in a normal August, 0.21 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 12°C, 5 mm of precipitation in August.
- NOAA stationYakima Airport
- Station IDUSW00024243
- Location46.57°N 120.54°W
- Elevation1,064 ft (324 m)
- From the center2 miles
- Population97,390
- Jan 40° 24°
- Feb 47° 26°
- Mar 57° 30°
- Apr 65° 35°
- May 74° 44°
- Jun 81° 50°
- Jul 90° 55°
- Aug 89° 53°
- Sep 79° 45°
- Oct 64° 35°
- Nov 49° 27°
- Dec 38° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Yakima in August?
The normal high is 89°F and the normal low 53°F, for a daily mean of 70.9°F. August is 1.5°F cooler than July and 8.7°F warmer than September. August is the 2nd warmest month of the year in Yakima and the 11th wettest. Across the month the normal high falls 7°F, from 92°F on August 1 to 85°F on August 31. From one year to the next August's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 69°F and 73°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 8%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 92°F | 56°F | 7% | 2% |
| August 8 | 91°F | 55°F | 7% | 2% |
| August 15 | 89°F | 54°F | 7% | 2% |
| August 22 | 87°F | 52°F | 8% | 3% |
| August 31 | 85°F | 49°F | 8% | 3% |
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 | 92°F | 56°F | 7% | 2% | 14 h 50 min |
| August 2 | 92°F | 56°F | 7% | 2% | 14 h 50 min |
| August 3 | 91°F | 56°F | 7% | 2% | 14 h 50 min |
| August 4 | 91°F | 56°F | 7% | 2% | 14 h 50 min |
| August 5 | 91°F | 56°F | 7% | 2% | 14 h 40 min |
| August 6 | 91°F | 56°F | 7% | 2% | 14 h 40 min |
| August 7 | 91°F | 56°F | 7% | 2% | 14 h 40 min |
| August 8 | 91°F | 55°F | 7% | 2% | 14 h 40 min |
| August 9 | 90°F | 55°F | 7% | 2% | 14 h 30 min |
| August 10 | 90°F | 55°F | 7% | 2% | 14 h 30 min |
| August 11 | 90°F | 55°F | 7% | 2% | 14 h 30 min |
| August 12 | 90°F | 55°F | 7% | 2% | 14 h 20 min |
| August 13 | 89°F | 54°F | 7% | 2% | 14 h 20 min |
| August 14 | 89°F | 54°F | 7% | 2% | 14 h 20 min |
| August 15 | 89°F | 54°F | 7% | 2% | 14 h 20 min |
| August 16 | 89°F | 54°F | 7% | 2% | 14 h 10 min |
| August 17 | 88°F | 53°F | 7% | 3% | 14 h 10 min |
| August 18 | 88°F | 53°F | 7% | 3% | 14 h 10 min |
| August 19 | 88°F | 53°F | 7% | 3% | 14 h |
| August 20 | 88°F | 53°F | 7% | 3% | 14 h |
| August 21 | 87°F | 52°F | 8% | 3% | 14 h |
| August 22 | 87°F | 52°F | 8% | 3% | 13 h 50 min |
| August 23 | 87°F | 52°F | 8% | 3% | 13 h 50 min |
| August 24 | 87°F | 51°F | 8% | 3% | 13 h 50 min |
| August 25 | 86°F | 51°F | 8% | 3% | 13 h 50 min |
| August 26 | 86°F | 51°F | 8% | 3% | 13 h 40 min |
| August 27 | 86°F | 51°F | 8% | 3% | 13 h 40 min |
| August 28 | 86°F | 50°F | 8% | 3% | 13 h 40 min |
| August 29 | 85°F | 50°F | 8% | 3% | 13 h 30 min |
| August 30 | 85°F | 50°F | 8% | 3% | 13 h 30 min |
| August 31 | 85°F | 49°F | 8% | 3% | 13 h 30 min |
- Normal high
- 89°FAugust average
- Normal low
- 53°FAugust average
- Precipitation
- 0.21 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 14
- Daylight
- 14 h 50 min to 13 h 30 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 27
- Sunshine
- 89%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024243; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Yakima in August?
On a given August day the chance of 0.01 inch or more is 7% on average, highest around August 31 (8%). In all, 0.21 in falls on 2 days of a normal August.
In a normal August in Yakima, 14 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024243.
How humid and windy is Yakima in August?
At 3 p.m. the normal temperature is 82°F with 26% relative humidity and a dew point of 44°F; at 6 a.m. it is 52°F with 74% humidity. The wind averages 6.3 mph, most often from the south-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 52°F | 44°F | 74% | 6.5 mph | 85% |
| 9 a.m. | 69°F | 47°F | 45% | 5.0 mph | 84% |
| noon | 79°F | 44°F | 29% | 5.6 mph | 81% |
| 3 p.m. | 82°F | 44°F | 26% | 7.2 mph | 75% |
| 6 p.m. | 77°F | 47°F | 34% | 7.2 mph | 79% |
| 9 p.m. | 64°F | 47°F | 54% | 7.1 mph | 91% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024243. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Yakima?
The warmest August temperature on Yakima's official record (since 1946) is 110°F, on August 10, 1971; the coldest is 35°F, on August 22, 1960. The wettest August brought 2.10 in (1975).
The August mean against the 1991-2020 normal of 70.9°F: 2021 72.1°F (+1.2), 2022 76.5°F (+5.6), 2023 73.0°F (+2.1), 2024 70.4°F (−0.5), 2025 73.6°F (+2.7). 4 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.1°F | +1.2°F | 0.03 in |
| 2022 | 76.5°F | +5.6°F | 0.00 in |
| 2023 | 73.0°F | +2.1°F | 0.46 in |
| 2024 | 70.4°F | −0.5°F | 0.28 in |
| 2025 | 73.6°F | +2.7°F | 0.11 in |
Source: records: ACIS, NWS threaded record YKMthr; recent months: ACIS, station USW00024243. Records and recent months use complete months only.
How does August in Yakima 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; Yakima's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.