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Weather & Climate in Swede Heaven, WA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Swede Heaven experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 35°F in January while summers reach 66°F in July. The area gets 166 sunny days per year, below the national average of 205. Annual precipitation totals 83.1 inches (wetter than the 38-inch national average). 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 416 feet.
Temperature
35°F Jan (2°C)
66°F Jul (19°C)
| Annual Average | 49.6°F |
| 8% below US avg | |
| January Average | 35°F (2°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 166 days/yr |
Geography
| Elevation | 416 ft (127 m) |
| Area | 2.7 sq mi (7.0 km²) |
| Population Density | 162/sq mi |
| Coordinates | 48.2807°N, 121.7099°W |
| Timezone | America/Los_Angeles |
| County | Skagit County County |
| Nearest Airport | Skagit Regional (MVW) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.8 / 100 |
| Social Vulnerability | 31.7 / 100 |
| Community Resilience | 73.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Coastal Flood | Relatively High |
| Tsunami | Very Low |
| Volcano | Relatively High |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
694 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.
| Feb 28, 2001 | 7 km SSE of Longbranch, Washington | M6.8 | 147 km | 52 km |
| May 3, 1996 | 8 km NNE of Lake Marcel-Stillwater, Washington | M5.4 | 59 km | 4 km |
| Jan 29, 1995 | 3 km WSW of Des Moines, Washington | M5.0 | 111 km | 15 km |
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 71 km | 12 km |
| Jun 23, 1997 | 2 km NE of Enetai, Washington | M4.9 | 99 km | 13 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 133 km | 51 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 85 km | 62 km |
| Jun 24, 1997 | 16 km WNW of Malott, Washington | M4.6 | 135 km | 10 km |
| Jul 12, 2019 | 2 km S of Roosevelt, Washington | M4.6 | 51 km | 29 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 89 km | 16 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 71 km | 0 km |
| Jun 18, 1994 | 11 km SE of Skykomish, Washington | M4.3 | 80 km | -1 km |
| Jun 27, 2013 | 25 km N of Leavenworth, Washington | M4.3 | 91 km | 8 km |
| Feb 18, 2015 | 15 km ENE of Cle Elum, Washington | M4.2 | 135 km | 4 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 107 km | 23 km |
| Feb 23, 2017 | 11 km NE of Hoodsport, Washington | M4.1 | 133 km | 15 km |
| Jun 15, 1994 | 1 km WNW of Hoodsport, Washington | M4.0 | 145 km | 44 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 71 km | 1 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 70 km | 3 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 118 km | 52 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
11 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| May 13, 1986 | EF2 | 26 km | 0.3 mi | 0 |
| Nov 24, 1970 | EF2 | 42 km | 0.3 mi | 0 |
| May 18, 2005 | EF1 | 41 km | 0.2 mi | 0 |
| Oct 26, 1971 | EF1 | 38 km | 3.0 mi | 0 |
| Sep 28, 1962 | EF1 | 97 km | 0.1 mi | 0 |
| Jun 16, 2006 | EF0 | 46 km | 0.5 mi | 0 |
| Jun 5, 2004 | EF0 | 40 km | 0.1 mi | 0 |
| Apr 27, 2004 | EF0 | 88 km | 2.7 mi | 0 |
| Jun 11, 2001 | EF0 | 97 km | — | 0 |
| Aug 24, 1997 | EF0 | 50 km | 0.5 mi | 0 |
| Aug 18, 1964 | EF0 | 92 km | 5.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
6 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 | — | 134 km |
| 1894 | PUYALLUP RIVER DELTA, TACOMA, WA | Meteorological | 3.0 m | 2 | 124 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 136 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 125 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 141 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | — | — | 54 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Glacier Peak (48 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 48 km |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 56 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 159 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: WOLVERINE (66,329 acres, 2015).
| Year | Name | Acres Burned | Distance |
| 2015 | WOLVERINE | 66,329 | 80 km |
| 2021 | CEDAR CREEK | 58,591 | 98 km |
| 2001 | REX CREEK COMPLEX (REX CREEK) | 54,456 | 93 km |
| 2018 | CRESCENT MOUNTAIN | 53,258 | 94 km |
| 2003 | NEEDLES | 21,458 | 93 km |
| 2022 | BOLT CREEK | 15,211 | 61 km |
| 2014 | CHIWAUKUM COMPLEX | 14,511 | 95 km |
| 2014 | DUNCAN | 13,714 | 89 km |
| 2007 | DOMKE LAKE COMPLEX | 10,090 | 84 km |
| 2006 | TINPAN | 9,044 | 77 km |
| 2017 | UNO PEAK | 8,878 | 99 km |
| 2023 | AIRPLANE LAKE | 7,576 | 57 km |
| 2023 | SOURDOUGH | 7,517 | 66 km |
| 2006 | FLICK CREEK | 6,990 | 82 km |
| 2015 | GOODELL | 6,624 | 57 km |
| 1994 | BUTTE CK2 | 6,489 | 83 km |
| 2014 | LITTLE BRIDGE CREEK | 5,684 | 100 km |
| 2022 | MINNOW RIDGE | 5,458 | 84 km |
| 1985 | HUBBARD CR | 4,985 | 95 km |
| 2022 | SUIATTLE RIVER | 4,400 | 25 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 11.6 in | |
| February | 35°F (2°C) | 8.6 in | |
| March | 38°F (3°C) | 8.0 in | |
| April | 42°F (6°C) | 5.7 in | |
| May | 48°F (9°C) | 4.3 in | |
| June | 54°F (12°C) | 3.2 in | |
| July | 66°F (19°C) | 2.0 in | Warmest, Driest |
| August | 60°F (16°C) | 2.2 in | |
| September | 55°F (13°C) | 4.0 in | |
| October | 46°F (8°C) | 7.1 in | |
| November | 38°F (3°C) | 12.1 in | Wettest |
| December | 32°F (0°C) | 11.9 in | Coldest |
Swede Heaven has a seasonal temperature swing of 34°F / from 32°F in December to 66°F in July. Total annual precipitation is 80.8 inches, with November being the wettest month (12.1") and July the driest (2.0").