Pendleton weather in August: Pendleton, Oregon: normal highs, lows, rain and records for August
Pendleton in August has a normal high of 88°F and a normal low of 56°F, a daily mean of 72°F, falling from 91°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 2 days in a normal August, 0.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 13°C, 8 mm of precipitation in August.
- NOAA stationPendleton E Or Regional Airport
- Station IDUSW00024155
- Location45.69°N 118.85°W
- Elevation1,515 ft (462 m)
- From the center2 miles
- Population17,026
- Jan 42° 28°
- Feb 46° 30°
- Mar 55° 34°
- Apr 62° 38°
- May 71° 45°
- Jun 78° 51°
- Jul 89° 57°
- Aug 88° 56°
- Sep 78° 49°
- Oct 64° 39°
- Nov 49° 32°
- Dec 41° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Pendleton in August?
The normal high is 88°F and the normal low 56°F, for a daily mean of 71.8°F. August is 1.2°F cooler than July and 8.3°F warmer than September. August is the 2nd warmest month of the year in Pendleton and the 11th wettest. Across the month the normal high falls 8°F, from 91°F on August 1 to 83°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 70°F and 74°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 10%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 91°F | 58°F | 7% | 3% |
| August 8 | 90°F | 58°F | 7% | 3% |
| August 15 | 88°F | 56°F | 7% | 3% |
| August 22 | 86°F | 55°F | 8% | 3% |
| August 31 | 83°F | 53°F | 10% | 4% |
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 | 58°F | 7% | 3% | 14 h 50 min |
| August 2 | 91°F | 58°F | 7% | 3% | 14 h 50 min |
| August 3 | 91°F | 58°F | 7% | 3% | 14 h 40 min |
| August 4 | 91°F | 58°F | 7% | 3% | 14 h 40 min |
| August 5 | 91°F | 58°F | 7% | 3% | 14 h 40 min |
| August 6 | 90°F | 58°F | 7% | 3% | 14 h 40 min |
| August 7 | 90°F | 58°F | 7% | 3% | 14 h 30 min |
| August 8 | 90°F | 58°F | 7% | 3% | 14 h 30 min |
| August 9 | 90°F | 57°F | 7% | 3% | 14 h 30 min |
| August 10 | 89°F | 57°F | 7% | 3% | 14 h 30 min |
| August 11 | 89°F | 57°F | 7% | 3% | 14 h 20 min |
| August 12 | 89°F | 57°F | 7% | 3% | 14 h 20 min |
| August 13 | 89°F | 57°F | 7% | 3% | 14 h 20 min |
| August 14 | 88°F | 57°F | 7% | 3% | 14 h 10 min |
| August 15 | 88°F | 56°F | 7% | 3% | 14 h 10 min |
| August 16 | 88°F | 56°F | 7% | 3% | 14 h 10 min |
| August 17 | 88°F | 56°F | 7% | 3% | 14 h 10 min |
| August 18 | 87°F | 56°F | 8% | 3% | 14 h |
| August 19 | 87°F | 56°F | 8% | 3% | 14 h |
| August 20 | 87°F | 55°F | 8% | 3% | 14 h |
| August 21 | 86°F | 55°F | 8% | 3% | 13 h 50 min |
| August 22 | 86°F | 55°F | 8% | 3% | 13 h 50 min |
| August 23 | 86°F | 55°F | 8% | 3% | 13 h 50 min |
| August 24 | 85°F | 55°F | 8% | 3% | 13 h 50 min |
| August 25 | 85°F | 54°F | 9% | 3% | 13 h 40 min |
| August 26 | 85°F | 54°F | 9% | 4% | 13 h 40 min |
| August 27 | 85°F | 54°F | 9% | 4% | 13 h 40 min |
| August 28 | 84°F | 54°F | 9% | 4% | 13 h 30 min |
| August 29 | 84°F | 53°F | 9% | 4% | 13 h 30 min |
| August 30 | 84°F | 53°F | 9% | 4% | 13 h 30 min |
| August 31 | 83°F | 53°F | 10% | 4% | 13 h 20 min |
- Normal high
- 88°FAugust average
- Normal low
- 56°FAugust average
- Precipitation
- 0.31 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 13
- Daylight
- 14 h 50 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 26
- Sunshine
- 91%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024155; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Pendleton in August?
On a given August day the chance of 0.01 inch or more is 8% on average, highest around August 31 (10%). In all, 0.31 in falls on 2 days of a normal August.
In a normal August in Pendleton, 13 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024155.
How humid and windy is Pendleton in August?
At 3 p.m. the normal temperature is 82°F with 24% relative humidity and a dew point of 42°F; at 6 a.m. it is 56°F with 59% humidity. The wind averages 8.3 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 56°F | 42°F | 59% | 7.0 mph | 87% |
| 9 a.m. | 70°F | 44°F | 39% | 7.3 mph | 85% |
| noon | 78°F | 43°F | 29% | 9.4 mph | 85% |
| 3 p.m. | 82°F | 42°F | 24% | 10.4 mph | 86% |
| 6 p.m. | 77°F | 41°F | 28% | 9.2 mph | 89% |
| 9 p.m. | 67°F | 42°F | 40% | 8.9 mph | 89% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024155. 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 Pendleton?
The warmest August temperature on Pendleton's official record (since 1892) is 119°F, on August 10, 1898; the coldest is 32°F, on August 24, 1904. The wettest August brought 2.58 in (1977).
The August mean against the 1991-2020 normal of 71.8°F: 2021 73.1°F (+1.3), 2022 78.2°F (+6.4), 2023 74.3°F (+2.5), 2024 72.8°F (+1.0), 2025 74.1°F (+2.3), 2026 72.2°F (+0.4). 6 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.1°F | +1.3°F | 0.01 in |
| 2022 | 78.2°F | +6.4°F | 0.04 in |
| 2023 | 74.3°F | +2.5°F | 0.39 in |
| 2024 | 72.8°F | +1.0°F | 0.30 in |
| 2025 | 74.1°F | +2.3°F | 0.30 in |
| 2026 | 72.2°F | +0.4°F | 0.02 in |
Source: records: ACIS, NWS threaded record PDTthr; recent months: ACIS, station USW00024155. Records and recent months use complete months only.
How does August in Pendleton compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, August normal highs run from 64°F in Newport to 94°F in Cave Junction; Pendleton's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.