Astoria weather in August: Astoria, Oregon: normal highs, lows, rain and records for August
Astoria in August has a normal high of 69°F and a normal low of 54°F, a daily mean of 61°F, holding near 69°F all month. Measurable precipitation falls on 8 days in a normal August, 1.12 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 12°C, 28 mm of precipitation in August.
- NOAA stationAstoria Regional Airport
- Station IDUSW00094224
- Location46.16°N 123.88°W
- Elevation9 ft (3 m)
- Population9,906
- Jan 49° 38°
- Feb 51° 37°
- Mar 53° 39°
- Apr 56° 42°
- May 61° 46°
- Jun 64° 51°
- Jul 67° 54°
- Aug 69° 54°
- Sep 68° 51°
- Oct 61° 45°
- Nov 54° 40°
- Dec 49° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Astoria in August?
The normal high is 69°F and the normal low 54°F, for a daily mean of 61.3°F. August is 0.7°F warmer than July and 2.3°F warmer than September. August is the warmest month of the year in Astoria and the 11th wettest. Across the month the normal high rises 1°F, from 68°F on August 1 to 69°F on August 31. From one year to the next August's mean temperature typically moves about 1.3°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 60°F and 63°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 68°F | 55°F | 23% | 6% |
| August 8 | 69°F | 55°F | 23% | 7% |
| August 15 | 69°F | 54°F | 24% | 8% |
| August 22 | 69°F | 54°F | 26% | 10% |
| August 31 | 69°F | 53°F | 30% | 13% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 29, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 68°F | 55°F | 23% | 6% | 14 h 50 min |
| August 2 | 68°F | 55°F | 23% | 6% | 14 h 50 min |
| August 3 | 68°F | 55°F | 23% | 7% | 14 h 50 min |
| August 4 | 68°F | 55°F | 23% | 7% | 14 h 40 min |
| August 5 | 68°F | 55°F | 23% | 7% | 14 h 40 min |
| August 6 | 68°F | 55°F | 23% | 7% | 14 h 40 min |
| August 7 | 68°F | 55°F | 23% | 7% | 14 h 40 min |
| August 8 | 69°F | 55°F | 23% | 7% | 14 h 30 min |
| August 9 | 69°F | 54°F | 23% | 7% | 14 h 30 min |
| August 10 | 69°F | 54°F | 23% | 7% | 14 h 30 min |
| August 11 | 69°F | 54°F | 23% | 7% | 14 h 20 min |
| August 12 | 69°F | 54°F | 24% | 8% | 14 h 20 min |
| August 13 | 69°F | 54°F | 24% | 8% | 14 h 20 min |
| August 14 | 69°F | 54°F | 24% | 8% | 14 h 20 min |
| August 15 | 69°F | 54°F | 24% | 8% | 14 h 10 min |
| August 16 | 69°F | 54°F | 24% | 8% | 14 h 10 min |
| August 17 | 69°F | 54°F | 25% | 8% | 14 h 10 min |
| August 18 | 69°F | 54°F | 25% | 9% | 14 h |
| August 19 | 69°F | 54°F | 25% | 9% | 14 h |
| August 20 | 69°F | 54°F | 26% | 9% | 14 h |
| August 21 | 69°F | 54°F | 26% | 10% | 14 h |
| August 22 | 69°F | 54°F | 26% | 10% | 13 h 50 min |
| August 23 | 69°F | 54°F | 27% | 10% | 13 h 50 min |
| August 24 | 69°F | 53°F | 27% | 11% | 13 h 50 min |
| August 25 | 69°F | 53°F | 28% | 11% | 13 h 40 min |
| August 26 | 69°F | 53°F | 28% | 11% | 13 h 40 min |
| August 27 | 69°F | 53°F | 28% | 11% | 13 h 40 min |
| August 28 | 69°F | 53°F | 29% | 12% | 13 h 30 min |
| August 29 | 69°F | 53°F | 29% | 12% | 13 h 30 min |
| August 30 | 69°F | 53°F | 29% | 13% | 13 h 30 min |
| August 31 | 69°F | 53°F | 30% | 13% | 13 h 30 min |
- Normal high
- 69°FAugust average
- Normal low
- 54°FAugust average
- Precipitation
- 1.12 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 14 h 50 min to 13 h 30 minAugust 1 to August 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 2
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094224; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Astoria in August?
On a given August day the chance of 0.01 inch or more is 25% on average, highest around August 31 (30%). In all, 1.12 in falls on 8 days of a normal August.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094224.
How humid and windy is Astoria in August?
At 3 p.m. the normal temperature is 67°F with 66% relative humidity and a dew point of 55°F; at 6 a.m. it is 55°F with 93% humidity. The wind averages 6.9 mph, most often from the west-northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 55°F | 53°F | 93% | 4.0 mph | – |
| 9 a.m. | 62°F | 56°F | 80% | 5.5 mph | – |
| noon | 67°F | 56°F | 68% | 9.4 mph | 56% |
| 3 p.m. | 67°F | 55°F | 66% | 12.1 mph | 62% |
| 6 p.m. | 63°F | 55°F | 75% | 9.9 mph | 63% |
| 9 p.m. | 59°F | 55°F | 87% | 5.6 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094224. 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 Astoria?
The warmest August temperature on Astoria's official record (since 1887) is 98°F, on August 19, 2016; the coldest is 39°F, on August 19, 1973. The wettest August brought 5.22 in (1968).
The August mean against the 1991-2020 normal of 61.3°F: 2021 61.0°F (−0.3), 2022 64.4°F (+3.1), 2023 64.8°F (+3.5), 2024 64.0°F (+2.7), 2025 62.7°F (+1.4), 2026 62.6°F (+1.3). 5 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.0°F | −0.3°F | 0.49 in |
| 2022 | 64.4°F | +3.1°F | 0.25 in |
| 2023 | 64.8°F | +3.5°F | 0.81 in |
| 2024 | 64.0°F | +2.7°F | 0.87 in |
| 2025 | 62.7°F | +1.4°F | 1.82 in |
| 2026 | 62.6°F | +1.3°F | 0.46 in |
Source: records: ACIS, NWS threaded record ASTthr; recent months: ACIS, station USW00094224. Records and recent months use complete months only.
How does August in Astoria 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; Astoria's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.