Climate Comfort Score
62/100
Good
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data
Whidbey Island, WA Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 52°F
- Avg annual temp
- 62/100
- Comfort score
- 19.9"
- Annual precip
- 246d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Whidbey Island
Whidbey Island, Washington averages 52°F a year and scores 62/100 on the comfort index - good, milder than 47% of U.S. cities.
- 52°F
- average temperature, NOAA 1991-2020 normal
- 62/100
- comfort score, milder than 47% of U.S. cities
- 19.9"
- annual precipitation · 5" snow
- 246 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
19.9"
Annual Snow
5.4"
Comfort Score
62/100
Good
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
19.9"
Plus 5.4" of snow
Comfort score vs national 100-point ceiling (Whidbey Island) 62.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Whidbey Island area.
How Whidbey Island compares to every U.S. city
Whidbey Island's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
62 Top 53% higher than 47% 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 Whidbey Island
MethodologyZooming out from Whidbey Island'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 | 49°F (10°C) | 38°F (3°C) | 44°F (7°C) | 2.4" | 1.1" | 9.4 | 0.0 |
| February | 51°F (11°C) | 37°F (3°C) | 44°F (7°C) | 1.6" | 1.0" | 9.5 | 0.0 |
| March | 55°F (13°C) | 40°F (5°C) | 47°F (8°C) | 1.7" | 0.6" | 4.6 | 0.0 |
| April | 58°F (15°C) | 43°F (6°C) | 51°F (11°C) | 1.7" | 0.0" | 0.9 | 0.0 |
| May | 62°F (17°C) | 48°F (9°C) | 55°F (13°C) | 1.7" | 0.0" | 0.0 | 0.0 |
| June | 66°F (19°C) | 52°F (11°C) | 59°F (15°C) | 1.1" | 0.0" | 0.0 | 0.0 |
| July | 69°F (21°C) | 54°F (12°C) | 62°F (16°C) | 0.6" | 0.0" | 0.0 | 0.0 |
| August | 70°F (21°C) | 54°F (12°C) | 62°F (17°C) | 0.8" | 0.0" | 0.0 | 0.0 |
| September | 67°F (19°C) | 50°F (10°C) | 59°F (15°C) | 1.1" | 0.0" | 0.0 | 0.0 |
| October | 60°F (16°C) | 46°F (8°C) | 53°F (12°C) | 2.0" | 0.0" | 1.0 | 0.0 |
| November | 54°F (12°C) | 41°F (5°C) | 47°F (8°C) | 3.1" | 0.3" | 4.9 | 0.0 |
| December | 49°F (9°C) | 38°F (3°C) | 43°F (6°C) | 1.9" | 2.4" | 9.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 2.4"
Snow: 1.1"
16.3 days with precipitation
February 1.6"
Snow: 1.0"
14.3 days with precipitation
March 1.7"
Snow: 0.6"
15.5 days with precipitation
April 1.7"
13.1 days with precipitation
May 1.7"
11.7 days with precipitation
June 1.1"
8.9 days with precipitation
July 0.6"
5.3 days with precipitation
August 0.8"
5.6 days with precipitation
September 1.1"
9.5 days with precipitation
October 2.0"
14.5 days with precipitation
November 3.1"
Snow: 0.3"
17.1 days with precipitation
December 1.9"
Snow: 2.4"
16.5 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 14
50% probability date
Last Spring Freeze
March 13
50% probability date
Growing Season
246 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,727
Higher = more heating needed
Cooling Degree Days
25
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
What Whidbey Island's climate means for you
Whidbey Island runs 52°F a year - peaking in August, coldest in December.
- Gardeners get about 246 frost-free days, with the last spring freeze near March 13 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,727 heating and 25 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: Whidbey Island, WA
An annual average temperature of 52°F, ranging from a mean daily high of 59°F to a mean daily low of 45°F is what the NOAA 1991–2020 climate normals report for Whidbey Island, Washington. August is typically the warmest month of the year, while December is the coldest. That baseline comes from station USW00024255 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Whidbey Island receives roughly 19.9 inches of precipitation each year, with 5.4 inches typically falling as snow. The frost-free season averages 246 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 13 and the first fall freeze near November 14. For energy use, 4,727 heating degree days and 25 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Whidbey Island scores 62/100 (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 Whidbey Island, WA? ▼
The average annual temperature in Whidbey Island, Washington is 52°F. The warmest month averages 70°F (21°C) and the coldest averages 37°F (3°C).
How much rain does Whidbey Island get? ▼
Whidbey Island receives 19.9 inches of precipitation annually, including 5.4 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Whidbey Island? ▼
Whidbey Island has a climate comfort score of 62/100 (Good), milder than 47% of U.S. cities in the PlainClimate database.
When is the growing season in Whidbey Island? ▼
Whidbey Island has approximately 246 frost-free days per year, with the last spring freeze around March 13 and the first fall freeze around November 14.
How much energy does heating and cooling require in Whidbey Island? ▼
Whidbey Island has 4,727 heating degree days and 25 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 Whidbey Island climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00024255 near Whidbey Island.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024255. 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.