Climate averages 1991–2020
Yakima weather
in August.
A hot, very dry month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Yakima: daytime highs average 30.2°C and nights cool to about 15.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 3.0 mm of rain on fewer than one day, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 12 min on an average August day.
The nearest other city in this atlas is Tri-Cities (108 km away). In August its highs average 33.2°C, 3.0°C warmer than Yakima, with 4.2 mm of rain.
Among the 498 cities listed in the United States, Yakima ranks joint 221st of 498 for the warmest August highs and 93rd of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Yakima is 0.3°C warmer than that mean.
From August to September, average highs fall by 5.3°C to 24.9°C, and monthly rainfall rises from 3.0 mm to 8.4 mm.
The annual picture
August 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
Yakima climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.7°C-4.3°C | -4.3°C | 58 | 10.9 | 9.09 h |
| February | 6.0°C-2.9°C | -2.9°C | 42 | 7.5 | 10.310 h |
| March | 10.9°C-0.4°C | -0.4°C | 33 | 7.5 | 11.912 h |
| April | 15.6°C2.9°C | 2.9°C | 19 | 4.7 | 13.514 h |
| May | 21.4°C7.8°C | 7.8°C | 18 | 4.3 | 15.015 h |
| June | 25.6°C11.6°C | 11.6°C | 9.5 | 2.5 | 15.816 h |
| July | 31.0°C15.3°C | 15.3°C | 3.3 | 0.8 | 15.415 h |
| August, selected | 30.2°C15.1°C | 15.1°C | 3.0 | 0.8 | 14.214 h |
| September | 24.9°C10.7°C | 10.7°C | 8.4 | 1.9 | 12.613 h |
| October | 16.4°C5.1°C | 5.1°C | 30 | 5.5 | 10.911 h |
| November | 7.9°C-0.4°C | -0.4°C | 52 | 9.0 | 9.59 h |
| December | 2.5°C-4.0°C | -4.0°C | 66 | 11.0 | 8.69 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
August in nearby cities
- Tri-Cities in AugustUnited States · 108 kmHigh 33.2°C · Low 18.6°C · 4.2 mm rain
- Kennewick in AugustUnited States · 114 kmHigh 33.0°C · Low 18.5°C · 4.2 mm rain
- Auburn in AugustUnited States · 152 kmHigh 24.1°C · Low 13.9°C · 28 mm rain
- Kent in AugustUnited States · 157 kmHigh 24.6°C · Low 14.4°C · 33 mm rain
- Federal Way in AugustUnited States · 159 kmHigh 23.7°C · Low 13.6°C · 28 mm rain
- Renton in AugustUnited States · 162 kmHigh 24.5°C · Low 14.3°C · 33 mm rain
- Tacoma in AugustUnited States · 164 kmHigh 24.3°C · Low 14.2°C · 23 mm rain
- Bellevue in AugustUnited States · 170 kmHigh 24.1°C · Low 13.9°C · 33 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 Yakima) is explained once on the Yakima year overview and on the Sources, method and limits page.