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Weather & Climate in Blaine, WA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Blaine experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 39°F in January while summers reach 64°F in July. The area gets 233 sunny days per year, above the national average. Annual precipitation totals 41.8 inches. The area receives 9.3 inches of snow annually. Air quality is rated Good with a median AQI of 28 / among the cleanest air in the country. The city sits at an elevation of 51 feet.
Temperature
39°F Jan (4°C)
64°F Jul (18°C)
| Annual Average | 50.9°F |
| 6% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 233 days/yr |
Geography
| Elevation | 51 ft (16 m) |
| Area | 8.4 sq mi (21.8 km²) |
| Population Density | 1,070/sq mi |
| Coordinates | 48.9872°N, 122.7488°W |
| Timezone | America/Los_Angeles |
| County | Island County County |
| Nearest Airport | Bellingham International (BLI) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.0 / 100 |
| Social Vulnerability | 36.8 / 100 |
| Community Resilience | 80.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
405 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 46 km | 12 km |
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 97 km | 10 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 134 km | 62 km |
| Jul 12, 2019 | 2 km S of Roosevelt, Washington | M4.6 | 135 km | 29 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 42 km | 16 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 69 km | 3 km |
| Feb 19, 1991 | 31 km E of Squamish, Canada | M4.3 | 79 km | 5 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 45 km | 0 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 62 km | 23 km |
| Feb 22, 1996 | 31 km NNE of South Pender Harbour, Canada | M4.1 | 131 km | 2 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 45 km | 1 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 45 km | 3 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 52 km | 54 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 58 km | 52 km |
| Jul 1, 2009 | 4 km SE of Coupeville, Washington | M4.0 | 89 km | 58 km |
| Apr 7, 2001 | 36 km NNW of Neah Bay, Washington | M3.9 | 149 km | 32 km |
| Mar 6, 2025 | 14 km SW of Blyn, Washington | M3.9 | 122 km | 42 km |
| Jul 24, 2011 | 21 km W of Brinnon, Washington | M3.9 | 146 km | 41 km |
| Mar 17, 2004 | 3 km SW of Clear Lake, Washington | M3.8 | 70 km | 0 km |
| Sep 8, 2022 | 7 km WNW of Lofall, Washington | M3.7 | 127 km | 23 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
4 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| May 13, 1986 | EF2 | 100 km | 0.3 mi | 0 |
| May 18, 2005 | EF1 | 95 km | 0.2 mi | 0 |
| Jun 5, 2004 | EF0 | 92 km | 0.1 mi | 0 |
| Apr 27, 2004 | EF0 | 39 km | 2.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 38.0 m (125 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2007 | CHEHALIS LAKE, CHILLIWACK | Meteorological | 38.0 m | — | 76 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 123 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | — | — | 107 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Baker (72 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 72 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 98 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 107 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 132 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 155 km |
| Meager | Complex | 2,680 m (8,793 ft) | -410 | 191 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: COPPER LAKE (3,825 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | COPPER LAKE | 3,825 | 97 km |
| 2022 | BRUSH CREEK 2 | 3,186 | 100 km |
| 2022 | SILESIA | 2,737 | 90 km |
| 2022 | LITTLE CHILL | 2,242 | 94 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 6.1 in | |
| February | 41°F (5°C) | 4.4 in | |
| March | 44°F (7°C) | 3.9 in | |
| April | 49°F (9°C) | 3.3 in | |
| May | 54°F (12°C) | 2.8 in | |
| June | 58°F (15°C) | 2.4 in | |
| July | 64°F (18°C) | 1.6 in | Warmest, Driest |
| August | 63°F (17°C) | 1.7 in | |
| September | 58°F (15°C) | 2.1 in | |
| October | 51°F (10°C) | 4.3 in | |
| November | 43°F (6°C) | 7.1 in | Wettest |
| December | 38°F (3°C) | 5.9 in | Coldest |
Blaine has a seasonal temperature swing of 26°F / from 38°F in December to 64°F in July. Total annual precipitation is 45.6 inches, with November being the wettest month (7.1") and July the driest (1.6").