All Countries
Weather & Climate in Amboy, WA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Amboy experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 39°F in January while summers reach 65°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 83.3 inches (wetter than the 38-inch national average). The area receives 6.2 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 656 feet.
Temperature
39°F Jan (4°C)
65°F Jul (18°C)
| Annual Average | 50.9°F |
| 6% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 656 ft (200 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 155/sq mi |
| Coordinates | 45.9159°N, 122.4889°W |
| Timezone | America/Los_Angeles |
| County | Clark County County |
| Nearest Airport | Portland International (PDX) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.2 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 70.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1,075 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 | 138 km | 52 km |
| Jul 3, 1999 | 8 km N of Satsop, Washington | M5.8 | 149 km | 40 km |
| Mar 25, 1993 | 4 km E of Scotts Mills, Oregon | M5.6 | 98 km | 20 km |
| Jun 29, 2002 | 6 km ENE of Government Camp, Oregon | M4.5 | 90 km | 5 km |
| Jul 22, 2001 | 4 km WSW of DuPont, Washington | M4.3 | 131 km | 52 km |
| Feb 14, 2011 | 31 km S of Morton, Washington | M4.3 | 46 km | 4 km |
| Jun 17, 2010 | 30 km S of White Swan, Washington | M4.2 | 137 km | 3 km |
| Jul 14, 2008 | 11 km ESE of Maupin, Oregon | M4.2 | 148 km | 16 km |
| May 20, 1995 | 15 km NNE of Ashford, Washington | M4.1 | 115 km | 12 km |
| Aug 16, 2004 | 16 km ENE of Packwood, Washington | M4.0 | 115 km | -1 km |
| Oct 9, 1998 | 20 km S of White Swan, Washington | M4.0 | 141 km | 2 km |
| Jun 6, 2021 | 6 km NE of Government Camp, Oregon | M3.9 | 89 km | 4 km |
| Apr 24, 2003 | 3 km NW of North Portland, Oregon | M3.9 | 37 km | 17 km |
| Sep 10, 1994 | 2 km SE of Enumclaw, Washington | M3.9 | 147 km | 17 km |
| Oct 1, 2004 | 37 km NNE of Amboy, Washington | M3.9 | 39 km | -1 km |
| Jun 25, 2004 | 17 km W of Packwood, Washington | M3.9 | 92 km | -1 km |
| Jan 3, 2018 | 37 km SSE of Morton, Washington | M3.9 | 50 km | 10 km |
| Feb 8, 1995 | 9 km ESE of Hubbard, Oregon | M3.8 | 88 km | 24 km |
| Aug 3, 2006 | 2 km WNW of Cherry Grove, Washington | M3.8 | 16 km | 14 km |
| Jun 29, 2002 | 7 km NE of Government Camp, Oregon | M3.8 | 90 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
48 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 6 fatalities, 302 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 5, 1972 | EF3 | 37 km | 8.7 mi | 6 |
| Dec 8, 1993 | EF2 | 79 km | 6.0 mi | 0 |
| Nov 10, 1965 | EF2 | 93 km | 1.5 mi | 0 |
| Dec 10, 2015 | EF1 | 17 km | 0.8 mi | 0 |
| Oct 23, 2014 | EF1 | 43 km | 1.3 mi | 0 |
| Jun 13, 2013 | EF1 | 95 km | 0.3 mi | 0 |
| Jan 10, 2008 | EF1 | 31 km | 10.1 mi | 0 |
| Oct 9, 2000 | EF1 | 86 km | 0.1 mi | 0 |
| Oct 9, 2000 | EF1 | 67 km | 0.1 mi | 0 |
| Nov 12, 1991 | EF1 | 64 km | 0.2 mi | 0 |
| Nov 12, 1991 | EF1 | 42 km | 0.2 mi | 0 |
| Jun 29, 1989 | EF1 | 15 km | 1.6 mi | 0 |
| Mar 28, 1985 | EF1 | 43 km | 0.2 mi | 0 |
| Oct 13, 1984 | EF1 | 20 km | 3.0 mi | 0 |
| Aug 16, 1978 | EF1 | 34 km | 0.2 mi | 0 |
| Apr 12, 1957 | EF1 | 62 km | 2.5 mi | 0 |
| Oct 28, 2024 | EF0 | 45 km | 0.2 mi | 0 |
| Oct 11, 2023 | EF0 | 16 km | 0.5 mi | 0 |
| Oct 24, 2022 | EF0 | 90 km | 0.0 mi | 0 |
| Oct 22, 2022 | EF0 | 66 km | 0.9 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 250.0 m (820 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1980 | WASHINGTON | Explosion | 250.0 m | 61 | 40 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | - | 8 | 140 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: West Crater (32 km).
| Name | Type | Elevation | Last Eruption | Distance |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 32 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 40 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 52 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 84 km |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 86 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 118 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 148 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 176 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RIVERSIDE (138,190 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | RIVERSIDE | 138,190 | 90 km |
| 2015 | COUGAR CREEK | 51,866 | 91 km |
| 2017 | EAGLE CREEK | 48,816 | 54 km |
| 2020 | BIG HOLLOW | 24,243 | 32 km |
| 2012 | CASCADE CREEK | 20,655 | 77 km |
| 2002 | SHELDON RIDGE | 11,665 | 96 km |
| 2013 | GOVERNMENT FLATS COMPLEX | 10,993 | 96 km |
| 2008 | COLD SPRINGS | 8,966 | 85 km |
| 2011 | DOLLAR LAKE | 6,069 | 82 km |
| 2014 | 36 PIT | 5,838 | 83 km |
| 2008 | GNARL RIDGE | 3,502 | 89 km |
| 2014 | ROWENA | 3,406 | 100 km |
| 2022 | SIOUXON | 2,551 | 29 km |
| 2010 | HIWAY 8 | 2,135 | 97 km |
| 2012 | HIGHWAY 141 | 2,080 | 78 km |
| 2023 | CAMP CREEK | 2,056 | 61 km |
| 2006 | MT. HOOD COMPLEX | 1,849 | 96 km |
| 2022 | NAKIA CREEK | 1,737 | 28 km |
| 2020 | DOWTY RD | 1,424 | 65 km |
| 1991 | FALLS | 1,389 | 47 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 13.4 in | |
| February | 41°F (5°C) | 10.5 in | |
| March | 44°F (6°C) | 9.2 in | |
| April | 47°F (9°C) | 6.3 in | |
| May | 53°F (12°C) | 4.5 in | |
| June | 58°F (14°C) | 3.3 in | |
| July | 65°F (18°C) | 1.3 in | Warmest, Driest |
| August | 63°F (17°C) | 2.0 in | |
| September | 59°F (15°C) | 3.7 in | |
| October | 52°F (11°C) | 6.9 in | |
| November | 43°F (6°C) | 13.1 in | |
| December | 38°F (3°C) | 14.1 in | Coldest, Wettest |
Amboy has a seasonal temperature swing of 27°F / from 38°F in December to 65°F in July. Total annual precipitation is 88.4 inches, with December being the wettest month (14.1") and July the driest (1.3").