Astoria, OR Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Astoria's primary NOAA station, ASTORIA RGNL AP.
The climate verdict for Astoria
Water is the standout signal in Astoria, Oregon: 70.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 51°F. At 45/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 16% of scores.
- 51°F
- annual average temperature (NOAA normal)
- 45/100
- comfort score, above 16% of station-mapped location scores
- 70.3"
- yearly precipitation total
- 230 days
- frost-free growing season
Astoria: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00094224 · Astoria, OR 51°F mean · 70.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 51°F
- RANK-MID #3,156
- PHOTO-FINISH ≈ Mt Vernon
- PRCP-WET 70.3"
- SWING-NARROW 18°F
- COMF-LOW 45/100
- LOAD-HEAT 4,960 HDD
- STN-1 USW00094224
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Mt Vernon, WA (+ 0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every OR station list.
- Hot Seaside, OR 52°F
- Near Mt Vernon, WA 52°F
- Near Fort Bragg, CA 52°F
- Near Otis, OR 52°F
- Astoria (this station) 51°F
Climate Living Index · Astoria
Astoria: 65/100 · grade C
Astoria publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals); 1 missing weight rescale to 100.
PlainClimate-derived for Astoria, not an official NOAA rating. Rankings still use Comfort Score 45/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Summer moisture balance | 54.1°F mean dew point | 93/100 · A |
| Frost-free season | 230 days/year | 81/100 · B |
| Annual temperature balance | 51.4°F · 16.1° from 67.5°F | 46/100 · D |
| Precipitation balance | 70.3 in · 35.3 from 35 in | 0/100 · F |
Astoria · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Astoria is a temperate Köppen climate: Csb
Coldest-month mean 43.2°F and warmest-month mean 61.3°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 61.3°F
- Coldest month
- 43.2°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Astoria sits across the climate record
Three NOAA fields for Astoria's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 46th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 2% wettest
- Astoria's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 97%
- Warmest-to-coldest month gap for Astoria is compact versus 6,861 complete station-years.
How Astoria compares across U.S. station-mapped locations
Astoria's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
45 16th percentile score exceeds 16% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Astoria's measured station temperature trend
MethodologyAcross 127 complete annual observations from 1867 to 2025, ASTORIA RGNL AP warmed at a fitted rate of 0.08°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Astoria primary station fitted change +0.08 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 49°F (10°C) | 38°F (3°C) | 44°F (7°C) | 10.6" | 6.3 | 0.0 |
| February | 51°F (11°C) | 37°F (3°C) | 44°F (7°C) | 7.2" | 6.5 | 0.0 |
| March | 53°F (12°C) | 39°F (4°C) | 46°F (8°C) | 7.9" | 3.8 | 0.0 |
| April | 56°F (13°C) | 42°F (5°C) | 49°F (9°C) | 5.8" | 0.9 | 0.0 |
| May | 61°F (16°C) | 46°F (8°C) | 53°F (12°C) | 3.4" | 0.0 | 0.1 |
| June | 64°F (18°C) | 51°F (10°C) | 57°F (14°C) | 2.3" | 0.0 | 0.1 |
| July | 67°F (20°C) | 54°F (12°C) | 61°F (16°C) | 0.8" | 0.0 | 0.1 |
| August | 69°F (20°C) | 54°F (12°C) | 61°F (16°C) | 1.1" | 0.0 | 0.3 |
| September | 68°F (20°C) | 51°F (10°C) | 59°F (15°C) | 2.7" | 0.0 | 0.1 |
| October | 61°F (16°C) | 45°F (7°C) | 53°F (12°C) | 6.7" | 0.6 | 0.0 |
| November | 54°F (12°C) | 40°F (5°C) | 47°F (8°C) | 11.1" | 4.2 | 0.0 |
| December | 49°F (9°C) | 38°F (3°C) | 43°F (6°C) | 10.7" | 6.6 | 0.0 |
The year, day by day
The calendar barely moves in Astoria: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 37°F near February 13 and 69°F near August 29.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 37°F around February 13.
Where the wet dates fall
The likeliest wet date is December 18, when 72% of years recorded at least a hundredth of an inch. The driest is July 31 at 23%. Summed across the calendar, that is about 196 wet dates a year.
The widest day
September 19 carries the biggest normal gap between afternoon and dawn, 17°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Astoria.
Where Astoria Stands Nationally
This is one of the wettest normals climates ranked: about 70 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 17°F.
Astoria earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
21.6 days with precipitation
18.8 days with precipitation
21.5 days with precipitation
19.2 days with precipitation
15.5 days with precipitation
13.7 days with precipitation
8.1 days with precipitation
7.7 days with precipitation
10.1 days with precipitation
16.6 days with precipitation
21.1 days with precipitation
22.0 days with precipitation
Astoria's wet season runs through the cold months
December, January and February carry 40% of the year's precipitation here, while June through August contribute 6%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 18.1°F seasonal spread.
- Wettest month
- November, 11.1"
- Driest month
- July, 0.8"
- Wettest three months
- November, December, January (46% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
When it rains in Astoria, it arrives in quantity
70.3" of precipitation falls across only about 196 wet days here, averaging 0.36 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 196 a year, 54% of all days
- Average depth per wet day
- 0.36 inches
- Most wet days
- December, about 22
- Fewest wet days
- August, about 8
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
November 11
50% probability date
Last Spring Freeze
March 26
50% probability date
Growing Season
230 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,960
Higher = more heating needed
Cooling Degree Days
22
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 82% | 8.0 | 28% | 55% |
| February | 81% | 7.7 | 29% | 47% |
| March | 80% | 7.7 | 24% | 51% |
| April | 79% | 7.8 | 30% | 40% |
| May | 81% | 7.6 | 23% | 56% |
| June | 80% | 7.7 | 32% | 52% |
| July | 82% | 7.8 | 40% | 40% |
| August | 82% | 6.9 | 46% | 28% |
| September | 82% | 6.5 | 44% | 36% |
| October | 84% | 7.1 | 31% | 49% |
| November | 83% | 8.1 | 30% | 49% |
| December | 83% | 8.7 | 26% | 55% |
Nationwide similar cities
Other rankable U.S. places outside OR closest to Astoria on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (51°F here).
- Aberdeen, WA 51°F · 0.0°F off
- Beatrice, NE 51°F · 0.0°F off
- Brockton, MA 51°F · 0.0°F off
- Cedar City, UT 51°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (70.3" here), excluding temperature-peer places.
- Chalmette, LA 70.4" · 0.1" off
- Pascagoula, MS 70.4" · 0.2" off
- Seward, AK 69.7" · 0.6" off
- Thibodaux, LA 71.1" · 0.9" off
Data-derived climate profile
How Astoria's climate pattern fits together
heating led · wet · low swing
Heating is the larger measured load in Astoria, at 4,960 degree days versus 22 for cooling. Unlike a strongly continental record, however, its 18.1°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Astoria's frost-free season lasts about 230 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Astoria's 18.1°F seasonal spread is compact even though precipitation is abundant. August and December mark the typical warm and cold ends of the calendar. The annual average is 51°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
Alongside its heating load, Astoria carries 70.3 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Astoria's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Astoria, not an official NOAA class or a year-ahead forecast.
Questions about Astoria's climate
How much rain does Astoria get? ▼
How much energy does heating and cooling require in Astoria? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Astoria's primary station: ASTORIA RGNL AP (USW00094224). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 4103150). Match rule for Astoria: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Astoria comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.