Climate Comfort Score
53/100
Moderate
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data
Seaside, OR Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 52°F
- Avg annual temp
- 53/100
- Comfort score
- 76.7"
- Annual precip
- 224d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Seaside
Seaside, Oregon averages 52°F a year and scores 53/100 on the comfort index - moderate, milder than 26% of U.S. cities.
- 52°F
- annual average temperature (NOAA normal)
- 53/100
- comfort score, milder than 26% of U.S. cities
- 76.7"
- annual precipitation
- 224 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
52°F (11°C)
Avg High
59°F
Avg Low
45°F
Annual Precip
76.7"
Annual Snow
0.0"
Comfort Score
53/100
Moderate
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
76.7"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Seaside) 53.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Seaside area.
How Seaside compares to every U.S. city
Seaside's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
53 Top 74% higher than 26% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Seaside
MethodologyZooming out from Seaside's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
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 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 11.0"
21.3 days with precipitation
February 8.1"
18.1 days with precipitation
March 9.4"
20.7 days with precipitation
April 6.6"
17.2 days with precipitation
May 3.9"
13.6 days with precipitation
June 2.7"
11.1 days with precipitation
July 0.9"
6.7 days with precipitation
August 1.2"
7.2 days with precipitation
September 2.9"
8.6 days with precipitation
October 6.6"
14.5 days with precipitation
November 12.0"
20.3 days with precipitation
December 11.4"
21.8 days with precipitation
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
What Seaside's climate means for you
Seaside runs 52°F a year - peaking in August, coldest in December.
- Gardeners get about 224 frost-free days, with the last spring freeze near April 2 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,858 heating and 12 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Seaside, OR
In Seaside, Oregon, the NOAA 1991–2020 climate normals put the annual average temperature at 52°F, ranging from a mean daily high of 59°F to a mean daily low of 45°F. August is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00357641, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Seaside averages 76.7 inches of precipitation annually, with negligible snowfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 224 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 2 and the first fall freeze near November 12. Turning to energy use, 4,858 heating degree days and 12 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Seaside scores 53/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, August-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Seaside, OR? ▼
The average annual temperature in Seaside, Oregon is 52°F. The warmest month averages 67°F (19°C) and the coldest averages 38°F (4°C).
How much rain does Seaside get? ▼
Seaside receives 76.7 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Seaside? ▼
Seaside has a climate comfort score of 53/100 (Moderate), milder than 26% of U.S. cities in the PlainClimate database.
When is the growing season in Seaside? ▼
Seaside has approximately 224 frost-free days per year, with the last spring freeze around April 2 and the first fall freeze around November 12.
How much energy does heating and cooling require in Seaside? ▼
Seaside has 4,858 heating degree days and 12 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Seaside climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00357641 near Seaside.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00357641. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.