Climate Comfort Score
68/100
Good
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data
Blaine, WA Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 51°F
- Avg annual temp
- 68/100
- Comfort score
- 41.8"
- Annual precip
- 218d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Blaine
Blaine, Washington averages 51°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.
- 51°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, milder than 58% of U.S. cities
- 41.8"
- annual precipitation · 9" snow
- 218 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
51°F (11°C)
Avg High
58°F
Avg Low
44°F
Annual Precip
41.8"
Annual Snow
9.3"
Comfort Score
68/100
Good
Avg Annual Temperature
51°F
30-year mean (NOAA NCEI)
Annual Precipitation
41.8"
Plus 9.3" of snow
Comfort score vs national 100-point ceiling (Blaine) 68.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Blaine area.
How Blaine compares to every U.S. city
Blaine's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 42% higher than 58% 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 Blaine
MethodologyBlaine's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
- 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 | 45°F (7°C) | 34°F (1°C) | 39°F (4°C) | 6.2" | 3.7" | 11.6 | 0.0 |
| February | 48°F (9°C) | 35°F (1°C) | 41°F (5°C) | 3.4" | 0.8" | 10.6 | 0.0 |
| March | 52°F (11°C) | 38°F (3°C) | 45°F (7°C) | 4.2" | 1.0" | 6.7 | 0.0 |
| April | 58°F (14°C) | 42°F (5°C) | 50°F (10°C) | 3.0" | 0.0" | 2.1 | 0.0 |
| May | 64°F (18°C) | 47°F (8°C) | 56°F (13°C) | 2.6" | 0.0" | 0.2 | 0.0 |
| June | 69°F (20°C) | 52°F (11°C) | 60°F (16°C) | 1.9" | 0.0" | 0.1 | 0.0 |
| July | 73°F (23°C) | 55°F (13°C) | 64°F (18°C) | 1.1" | 0.0" | 0.0 | 0.0 |
| August | 73°F (23°C) | 55°F (13°C) | 64°F (18°C) | 1.1" | 0.0" | 0.0 | 0.0 |
| September | 67°F (19°C) | 50°F (10°C) | 59°F (15°C) | 2.2" | 0.0" | 0.0 | 0.0 |
| October | 57°F (14°C) | 44°F (7°C) | 51°F (10°C) | 4.4" | 0.1" | 1.3 | 0.0 |
| November | 50°F (10°C) | 38°F (3°C) | 44°F (7°C) | 6.1" | 0.4" | 6.6 | 0.0 |
| December | 44°F (7°C) | 34°F (1°C) | 39°F (4°C) | 5.6" | 3.3" | 12.5 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 6.2"
Snow: 3.7"
18.6 days with precipitation
February 3.4"
Snow: 0.8"
14.8 days with precipitation
March 4.2"
Snow: 1.0"
17.8 days with precipitation
April 3.0"
14.6 days with precipitation
May 2.6"
10.9 days with precipitation
June 1.9"
10.2 days with precipitation
July 1.1"
5.8 days with precipitation
August 1.1"
6.3 days with precipitation
September 2.2"
9.0 days with precipitation
October 4.4"
Snow: 0.1"
15.7 days with precipitation
November 6.1"
Snow: 0.4"
19.0 days with precipitation
December 5.6"
Snow: 3.3"
19.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 4
50% probability date
Last Spring Freeze
March 31
50% probability date
Growing Season
218 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,186
Higher = more heating needed
Cooling Degree Days
67
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Blaine's climate means for you
Blaine runs 51°F a year - peaking in July, coldest in December.
- Gardeners get about 218 frost-free days, with the last spring freeze near March 31 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,186 heating and 67 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: Blaine, WA
The NOAA 1991–2020 climate normals describe Blaine, Washington as a location with an annual average temperature of 51°F, ranging from a mean daily high of 58°F to a mean daily low of 44°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00450729, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Beyond temperature, Blaine averages 41.8 inches of precipitation annually, with 9.3 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 218 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 31 and the first fall freeze near November 4. Turning to energy use, 5,186 heating degree days and 67 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Blaine scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Blaine, WA? ▼
The average annual temperature in Blaine, Washington is 51°F. The warmest month averages 73°F (23°C) and the coldest averages 34°F (1°C).
How much rain does Blaine get? ▼
Blaine receives 41.8 inches of precipitation annually, including 9.3 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Blaine? ▼
Blaine has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Blaine? ▼
Blaine has approximately 218 frost-free days per year, with the last spring freeze around March 31 and the first fall freeze around November 4.
How much energy does heating and cooling require in Blaine? ▼
Blaine has 5,186 heating degree days and 67 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 Blaine climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00450729 near Blaine.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00450729. 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.