PlainClimate
NOAA 1991–2020 normals 53°F annual avg Public-domain federal data

Anacortes, WA Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

53°F
Avg annual temp
72/100
Comfort score
29.0"
Annual precip
257d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Anacortes

Anacortes, Washington averages 53°F a year and scores 72/100 on the comfort index - good, milder than 66% of U.S. cities.

53°F
average temperature, NOAA 1991-2020 normal
72/100
comfort score, milder than 66% of U.S. cities
29.0"
yearly precipitation total
257 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

53°F (12°C)

Avg High

61°F

Avg Low

45°F

Annual Precip

29.0"

Comfort Score

72/100

Good

Climate Comfort Score

72/100

Good

Avg Annual Temperature

53°F

30-year mean (NOAA NCEI)

Annual Precipitation

29.0"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Anacortes) 72.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Anacortes area.

How Anacortes compares to every U.S. city

Anacortes's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

72 Top 34% higher than 66% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). This entry sits in this band. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Anacortes

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Anacortes captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 48°F (9°C) 37°F (3°C) 43°F (6°C)
February 51°F (10°C) 37°F (3°C) 44°F (7°C)
March 54°F (12°C) 40°F (4°C) 47°F (8°C)
April 59°F (15°C) 43°F (6°C) 51°F (11°C)
May 66°F (19°C) 48°F (9°C) 57°F (14°C)
June 70°F (21°C) 52°F (11°C) 61°F (16°C)
July 75°F (24°C) 54°F (12°C) 65°F (18°C)
August 75°F (24°C) 54°F (12°C) 65°F (18°C)
September 70°F (21°C) 51°F (11°C) 61°F (16°C)
October 61°F (16°C) 46°F (8°C) 53°F (12°C)
November 53°F (12°C) 40°F (5°C) 47°F (8°C)
December 47°F (8°C) 37°F (3°C) 42°F (5°C)

Monthly Precipitation

Average monthly rainfall

January 3.9"

17.9 days with precipitation

February 2.6"

14.0 days with precipitation

March 2.4"

16.5 days with precipitation

April 2.1"

13.4 days with precipitation

May 1.9"

11.3 days with precipitation

June 1.5"

8.8 days with precipitation

July 0.8"

4.4 days with precipitation

August 1.4"

4.7 days with precipitation

September 1.6"

7.6 days with precipitation

October 2.8"

14.2 days with precipitation

November 4.4"

18.0 days with precipitation

December 3.8"

18.7 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 20

50% probability date

Last Spring Freeze

March 8

50% probability date

Growing Season

257 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

4,520

Higher = more heating needed

Cooling Degree Days

92

Higher = more cooling needed

Warmest Month

August

Coldest Month

December

What Anacortes's climate means for you

Anacortes runs 53°F a year - peaking in August, coldest in December.

  • Gardeners get about 257 frost-free days, with the last spring freeze near March 8 - plan the planting calendar around it, not the regional average.
  • Energy bills track 4,520 heating and 92 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: Anacortes, WA

Anacortes, Washington runs an annual average of 53°F, ranging from a mean daily high of 61°F to a mean daily low of 45°F, per NOAA's 1991–2020 climate normals. August is typically the warmest month of the year, while December is the coldest. Drawn from station USC00450176, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Beyond temperature, Anacortes averages 29.0 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 257 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 8 and the first fall freeze near November 20. Turning to energy use, 4,520 heating degree days and 92 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Anacortes scores 72/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings August-driven heat, and deep winter brings December-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Anacortes, WA?
The average annual temperature in Anacortes, Washington is 53°F. The warmest month averages 75°F (24°C) and the coldest averages 37°F (3°C).
How much rain does Anacortes get?
Anacortes receives 29.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Anacortes?
Anacortes has a climate comfort score of 72/100 (Good), milder than 66% of U.S. cities in the PlainClimate database.
When is the growing season in Anacortes?
Anacortes has approximately 257 frost-free days per year, with the last spring freeze around March 8 and the first fall freeze around November 20.
How much energy does heating and cooling require in Anacortes?
Anacortes has 4,520 heating degree days and 92 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 Anacortes climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00450176 near Anacortes.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00450176. For informational purposes only.

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.