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Weather & Climate in Carlsborg, WA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Carlsborg experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 39°F in January while summers reach 61°F in July. The area gets 274 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 16.9 inches (drier than the 38-inch national average). The area receives 1.4 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 206 feet.
Temperature
39°F Jan (4°C)
61°F Jul (16°C)
| Annual Average | 48.9°F |
| 9% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 206 ft (63 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 1,071/sq mi |
| Coordinates | 48.0842°N, 123.1697°W |
| Timezone | America/Los_Angeles |
| County | San Juan County County |
| Nearest Airport | William R Fairchild International (CLM) 15 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 35.4 / 100 |
| Social Vulnerability | 61.0 / 100 |
| Community Resilience | 95.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
| Tsunami | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
670 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 | 109 km | 52 km |
| Jul 3, 1999 | 8 km N of Satsop, Washington | M5.8 | 115 km | 40 km |
| May 3, 1996 | 8 km NNE of Lake Marcel-Stillwater, Washington | M5.4 | 103 km | 4 km |
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 113 km | 12 km |
| Jun 10, 2001 | 18 km N of Satsop, Washington | M5.0 | 105 km | 40 km |
| Jan 29, 1995 | 3 km WSW of Des Moines, Washington | M5.0 | 98 km | 15 km |
| Jun 23, 1997 | 2 km NE of Enetai, Washington | M4.9 | 70 km | 13 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 46 km | 51 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 55 km | 62 km |
| Jul 12, 2019 | 2 km S of Roosevelt, Washington | M4.6 | 89 km | 29 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 65 km | 16 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 132 km | 3 km |
| Jul 22, 2001 | 4 km WSW of DuPont, Washington | M4.3 | 117 km | 52 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 110 km | 0 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 45 km | 23 km |
| Feb 23, 2017 | 11 km NE of Hoodsport, Washington | M4.1 | 68 km | 15 km |
| Jun 15, 1994 | 1 km WNW of Hoodsport, Washington | M4.0 | 75 km | 44 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 111 km | 1 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 109 km | 3 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 64 km | 54 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
15 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Dec 12, 1969 | EF3 | 87 km | 3.8 mi | 0 |
| Dec 18, 2018 | EF2 | 75 km | 1.4 mi | 0 |
| May 13, 1986 | EF2 | 84 km | 0.3 mi | 0 |
| Nov 24, 1970 | EF2 | 72 km | 0.3 mi | 0 |
| Oct 10, 2020 | EF1 | 99 km | 0.5 mi | 0 |
| Oct 18, 2019 | EF1 | 92 km | 0.7 mi | 0 |
| Jan 18, 2015 | EF1 | 94 km | 4.1 mi | 0 |
| May 18, 2005 | EF1 | 69 km | 0.2 mi | 0 |
| Dec 22, 1971 | EF1 | 99 km | 0.5 mi | 0 |
| Oct 26, 1971 | EF1 | 94 km | 3.0 mi | 0 |
| Sep 28, 1962 | EF1 | 92 km | 0.1 mi | 0 |
| Jun 5, 2004 | EF0 | 70 km | 0.1 mi | 0 |
| Jun 11, 2001 | EF0 | 73 km | — | 0 |
| Aug 24, 1997 | EF0 | 82 km | 0.5 mi | 0 |
| Apr 9, 1991 | EF0 | 65 km | 0.8 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1894 | PUYALLUP RIVER DELTA, TACOMA, WA | Meteorological | 3.0 m | 2 | 104 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 26 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 99 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 110 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | — | — | 60 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Baker (126 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 126 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 153 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 173 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
7 wildfires (100+ acres) recorded within 100 km. Largest: DELABARRE (4,176 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | DELABARRE | 4,176 | 41 km |
| 2018 | MAPLE | 3,547 | 56 km |
| 2015 | PARADISE | 2,818 | 63 km |
| 2016 | HAYES TWO | 2,679 | 35 km |
| 2011 | BIG HUMP | 1,400 | 43 km |
| 1985 | BEAVER | 1,107 | 62 km |
| 2006 | BEAR GULCH II | 1,037 | 66 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 6.1 in | |
| February | 40°F (4°C) | 4.6 in | |
| March | 42°F (6°C) | 4.0 in | |
| April | 46°F (8°C) | 2.6 in | |
| May | 51°F (11°C) | 1.9 in | |
| June | 55°F (13°C) | 1.5 in | |
| July | 61°F (16°C) | 1.0 in | Warmest, Driest |
| August | 60°F (16°C) | 1.2 in | |
| September | 57°F (14°C) | 1.7 in | |
| October | 49°F (10°C) | 3.6 in | |
| November | 42°F (6°C) | 6.5 in | |
| December | 38°F (3°C) | 6.9 in | Coldest, Wettest |
Carlsborg has a seasonal temperature swing of 23°F / from 38°F in December to 61°F in July. Total annual precipitation is 41.6 inches, with December being the wettest month (6.9") and July the driest (1.0").