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Weather & Climate in Markham, WA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Markham experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 43°F in January while summers reach 60°F in July / relatively mild seasonal variation. The area gets 226 sunny days per year, above the national average. Annual precipitation totals 68.8 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 54 feet.
Temperature
43°F Jan (6°C)
60°F Jul (16°C)
| Annual Average | 51.0°F |
| 6% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 226 days/yr |
Geography
| Elevation | 54 ft (16 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 154/sq mi |
| Coordinates | 46.9142°N, 123.9879°W |
| Timezone | America/Los_Angeles |
| County | Pacific County County |
| Nearest Airport | Astoria Regional (AST) 50 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.8 / 100 |
| Social Vulnerability | 64.4 / 100 |
| Community Resilience | 69.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very High |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
295 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 | 99 km | 52 km |
| Jul 3, 1999 | 8 km N of Satsop, Washington | M5.8 | 44 km | 40 km |
| Jan 29, 1995 | 3 km WSW of Des Moines, Washington | M5.0 | 134 km | 15 km |
| Jun 10, 2001 | 18 km N of Satsop, Washington | M5.0 | 46 km | 40 km |
| Jun 23, 1997 | 2 km NE of Enetai, Washington | M4.9 | 131 km | 13 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 101 km | 51 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 144 km | 62 km |
| Jul 22, 2001 | 4 km WSW of DuPont, Washington | M4.3 | 101 km | 52 km |
| Feb 23, 2017 | 11 km NE of Hoodsport, Washington | M4.1 | 96 km | 15 km |
| Jun 15, 1994 | 1 km WNW of Hoodsport, Washington | M4.0 | 83 km | 44 km |
| Jun 27, 1997 | 3 km SW of Bainbridge Island, Washington | M3.9 | 133 km | 1 km |
| Mar 6, 2025 | 14 km SW of Blyn, Washington | M3.9 | 129 km | 42 km |
| Jul 24, 2011 | 21 km W of Brinnon, Washington | M3.9 | 107 km | 41 km |
| Jun 12, 2021 | 3 km WSW of Skokomish, Washington | M3.8 | 75 km | 44 km |
| Sep 8, 2022 | 7 km WNW of Lofall, Washington | M3.7 | 139 km | 23 km |
| Aug 23, 2013 | 24 km SSE of Mossyrock, Washington | M3.7 | 139 km | 14 km |
| Nov 26, 1997 | 15 km WSW of Quilcene, Washington | M3.7 | 120 km | 46 km |
| May 30, 2003 | 4 km SSW of Gorst, Washington | M3.7 | 115 km | 25 km |
| Jun 16, 2002 | 2 km N of Belfair, Washington | M3.7 | 107 km | 16 km |
| Jun 16, 2017 | 2 km NNW of Quilcene, Washington | M3.7 | 132 km | 55 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: EF2. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Nov 10, 1965 | EF2 | 86 km | 1.5 mi | 0 |
| Oct 10, 2020 | EF1 | 51 km | 0.5 mi | 0 |
| Oct 18, 2019 | EF1 | 89 km | 0.7 mi | 0 |
| May 27, 2004 | EF1 | 81 km | 0.2 mi | 0 |
| Oct 3, 1967 | EF1 | 87 km | 0.5 mi | 0 |
| Mar 19, 2021 | EF0 | 66 km | 0.3 mi | 0 |
| May 27, 2011 | EF0 | 92 km | 0.1 mi | 0 |
| Jan 28, 2006 | EF0 | 96 km | 0.5 mi | 0 |
| Dec 23, 1997 | EF0 | 12 km | 0.3 mi | 0 |
| Aug 26, 1997 | EF0 | 40 km | 0.5 mi | 0 |
| Sep 15, 1996 | EF0 | 96 km | 1.5 mi | 0 |
| Apr 6, 1994 | EF0 | 78 km | 0.5 mi | 0 |
| Feb 13, 1994 | EF0 | 83 km | 0.1 mi | 0 |
| Jun 13, 1991 | EF0 | 74 km | 0.3 mi | 0 |
| Dec 1, 1990 | EF0 | 31 km | 0.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
4 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 | 124 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 126 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 118 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 108 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: St. Helens (159 km).
| Name | Type | Elevation | Last Eruption | Distance |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 159 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 169 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 186 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: MAPLE (3,547 acres, 2018).
| Year | Name | Acres Burned | Distance |
| 2018 | MAPLE | 3,547 | 97 km |
| 2015 | PARADISE | 2,818 | 89 km |
| 1985 | BEAVER | 1,107 | 84 km |
| 2006 | BEAR GULCH II | 1,037 | 84 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 13.8 in | |
| February | 43°F (6°C) | 11.5 in | |
| March | 45°F (7°C) | 10.2 in | |
| April | 48°F (9°C) | 6.9 in | |
| May | 52°F (11°C) | 4.3 in | |
| June | 56°F (13°C) | 3.0 in | |
| July | 60°F (16°C) | 1.8 in | Driest |
| August | 61°F (16°C) | 2.0 in | Warmest |
| September | 58°F (15°C) | 3.8 in | |
| October | 52°F (11°C) | 7.9 in | |
| November | 45°F (7°C) | 13.6 in | |
| December | 41°F (5°C) | 14.8 in | Coldest, Wettest |
Markham has a seasonal temperature swing of 20°F / from 41°F in December to 61°F in August. Total annual precipitation is 93.5 inches, with December being the wettest month (14.8") and July the driest (1.8").