Seaside, OR Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Seaside's primary NOAA station, SEASIDE.
The climate verdict for Seaside
Water is the standout signal in Seaside, Oregon: 76.7 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 52°F. At 53/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 52°F
- annual average temperature (NOAA normal)
- 53/100
- comfort score, above 31% of station-mapped location scores
- 76.7"
- annual precipitation
- 224 days
- growing season, frost-free days
Seaside: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00357641 · Seaside, OR 52°F mean · 76.7" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 52°F
- RANK-MID #3,293
- PHOTO-FINISH ≈ Otis
- PRCP-WET 76.7"
- SWING-NARROW 15°F
- COMF-LOW 53/100
- LOAD-HEAT 4,858 HDD
- STN-1 USC00357641
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Otis, OR (+ 0 °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.
- Seaside (this station) 52°F
- Cold Fort Bragg, CA 52°F
- Hot Port Townsend, WA 52°F
- Near Otis, OR 52°F
- Near Fort Clatsop Na…, OR 52°F
Climate Living Index · Seaside
Seaside: 63/100 · grade C
Seaside publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Seaside, not an official NOAA rating. Rankings still use Comfort Score 53/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Frost-free season | 224 days/year | 79/100 · B |
| Annual temperature balance | 51.7°F · 15.8° from 67.5°F | 48/100 · D |
| Precipitation balance | 76.7 in · 41.7 from 35 in | 0/100 · F |
Seaside · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Seaside is a temperate Köppen climate: Csb
Coldest-month mean 44.8°F and warmest-month mean 60.0°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
- 60.0°F
- Coldest month
- 44.8°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 Seaside sits across the climate record
Three NOAA fields for Seaside's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 48th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 1% wettest
- Seaside's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 98%
- Warmest-to-coldest month gap for Seaside is compact versus 6,861 complete station-years.
How Seaside compares across U.S. station-mapped locations
Seaside's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
53 31st percentile score exceeds 31% 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%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 52°F (11°C) | 39°F (4°C) | 46°F (8°C) | 11.0" | 0.0" | 6.3 | 0.0 |
| February | 53°F (11°C) | 38°F (4°C) | 46°F (8°C) | 8.1" | 0.0" | 6.4 | 0.0 |
| March | 54°F (12°C) | 40°F (4°C) | 47°F (8°C) | 9.4" | 0.0" | 4.5 | 0.0 |
| April | 56°F (13°C) | 42°F (5°C) | 49°F (9°C) | 6.6" | 0.0" | 1.5 | 0.0 |
| May | 60°F (15°C) | 46°F (8°C) | 53°F (12°C) | 3.9" | 0.0" | 0.1 | 0.0 |
| June | 62°F (17°C) | 50°F (10°C) | 56°F (13°C) | 2.7" | 0.0" | 0.0 | 0.0 |
| July | 65°F (18°C) | 53°F (12°C) | 59°F (15°C) | 0.9" | 0.0" | 0.0 | 0.0 |
| August | 66°F (19°C) | 54°F (12°C) | 60°F (16°C) | 1.2" | 0.0" | 0.0 | 0.0 |
| September | 67°F (19°C) | 50°F (10°C) | 58°F (15°C) | 2.9" | 0.0" | 0.1 | 0.3 |
| October | 62°F (16°C) | 46°F (8°C) | 54°F (12°C) | 6.6" | 0.0" | 0.6 | 0.0 |
| November | 55°F (13°C) | 42°F (5°C) | 48°F (9°C) | 12.0" | 0.0" | 4.1 | 0.0 |
| December | 51°F (11°C) | 39°F (4°C) | 45°F (7°C) | 11.4" | 0.0" | 5.7 | 0.0 |
The year, day by day
The calendar barely moves in Seaside: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 38°F near February 15 and 67°F near September 3.
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 38°F around February 15.
Where the wet dates fall
The likeliest wet date is December 13, when 71% of years recorded at least a hundredth of an inch. The driest is July 30 at 19%. Summed across the calendar, that is about 181 wet dates a year.
The widest day
September 26 carries the biggest normal gap between afternoon and dawn, 18°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Seaside.
Where Seaside Stands Nationally
This is one of the wettest normals climates ranked: about 77 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 18°F.
Seaside earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
21.3 days with precipitation
18.1 days with precipitation
20.7 days with precipitation
17.2 days with precipitation
13.6 days with precipitation
11.1 days with precipitation
6.7 days with precipitation
7.2 days with precipitation
8.6 days with precipitation
14.5 days with precipitation
20.3 days with precipitation
21.8 days with precipitation
Seaside'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 15.2°F seasonal spread.
- Wettest month
- November, 12.0"
- Driest month
- July, 0.9"
- Wettest three months
- November, December, January (45% 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 Seaside, it arrives in quantity
76.7" of precipitation falls across only about 181 wet days here, averaging 0.42 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 181 a year, 50% of all days
- Average depth per wet day
- 0.42 inches
- Most wet days
- December, about 22
- Fewest wet days
- July, about 7
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.
Seaside's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
November 12
50% probability date
Last Spring Freeze
April 2
50% probability date
Growing Season
224 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,858
Higher = more heating needed
Cooling Degree Days
12
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside OR closest to Seaside 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 (52°F here).
- Burlington, CO 52°F · 0.0°F off
- Conception, MO 52°F · 0.0°F off
- Connell, WA 52°F · 0.0°F off
- Donnellson, IA 52°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (76.7" here), excluding temperature-peer places.
- Brevard, NC 75.6" · 1.1" off
- Grayland, WA 75.2" · 1.5" off
- Kodiak, AK 78.3" · 1.6" off
- Klamath, CA 78.9" · 2.2" off
Data-derived climate profile
How Seaside's climate pattern fits together
heating led · wet · low swing
Heating is the larger measured load in Seaside, at 4,858 degree days versus 12 for cooling. Unlike a strongly continental record, however, its 15.2°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Seaside's frost-free season lasts about 224 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Seaside's 15.2°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 52°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
Alongside its heating load, Seaside carries 76.7 inches of precipitation in a normal year, inside PlainClimate's wet range. Recorded annual snowfall is negligible. 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 Seaside'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 Seaside, not an official NOAA class or a year-ahead forecast.
Questions about Seaside's climate
How much rain does Seaside get? ▼
How much energy does heating and cooling require in Seaside? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Seaside's primary station: SEASIDE (USC00357641). 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 4165950). Match rule for Seaside: 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 Seaside 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.