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Weather & Climate in James Bay, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
James Bay experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 42°F in January while summers reach 67°F in July. The area gets 248 sunny days per year, above the national average. Annual precipitation totals 32.0 inches. The area receives 10.4 inches of snow annually. The city sits at an elevation of 36 feet.
Temperature
42°F Jan (6°C)
67°F Jul (19°C)
| Annual Average | 52.3°F |
| 3% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 248 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 7.4 sq mi (19.3 km²) |
| Population Density | 1,755/sq mi |
| Coordinates | 48.4167°N, 123.3833°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
635 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 | 149 km | 52 km |
| Jul 3, 1999 | 8 km N of Satsop, Washington | M5.8 | 149 km | 40 km |
| May 3, 1996 | 8 km NNE of Lake Marcel-Stillwater, Washington | M5.4 | 134 km | 4 km |
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 102 km | 12 km |
| Jan 29, 1995 | 3 km WSW of Des Moines, Washington | M5.0 | 137 km | 15 km |
| Jun 10, 2001 | 18 km N of Satsop, Washington | M5.0 | 139 km | 40 km |
| Jun 23, 1997 | 2 km NE of Enetai, Washington | M4.9 | 109 km | 13 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 84 km | 51 km |
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 142 km | 10 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 92 km | 62 km |
| Jul 12, 2019 | 2 km S of Roosevelt, Washington | M4.6 | 118 km | 29 km |
| Jan 24, 2020 | 46 km WNW of Neah Bay, Washington | M4.5 | 134 km | 10 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 48 km | 16 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 93 km | 3 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 99 km | 0 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 20 km | 23 km |
| Feb 23, 2017 | 11 km NE of Hoodsport, Washington | M4.1 | 107 km | 15 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 99 km | 3 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 100 km | 1 km |
| Jun 15, 1994 | 1 km WNW of Hoodsport, Washington | M4.0 | 113 km | 44 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
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 | 144 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | - | 47 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | - | 139 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | - | - | 86 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Baker (122 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 122 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 162 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 171 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 171 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 190 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: DELABARRE (4,176 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | DELABARRE | 4,176 | 72 km |
| 2018 | MAPLE | 3,547 | 95 km |
| 2015 | PARADISE | 2,818 | 85 km |
| 2016 | HAYES TWO | 2,679 | 68 km |
| 2011 | BIG HUMP | 1,400 | 83 km |
| 1985 | BEAVER | 1,107 | 97 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 5.0 in | |
| February | 42°F (5°C) | 3.6 in | |
| March | 45°F (7°C) | 2.8 in | |
| April | 49°F (9°C) | 1.8 in | |
| May | 54°F (12°C) | 1.3 in | |
| June | 59°F (15°C) | 1.1 in | |
| July | 67°F (19°C) | 0.7 in | Warmest, Driest |
| August | 63°F (17°C) | 0.9 in | |
| September | 59°F (15°C) | 1.2 in | |
| October | 51°F (10°C) | 2.8 in | |
| November | 44°F (6°C) | 5.4 in | Wettest |
| December | 40°F (4°C) | 5.3 in | Coldest |
James Bay has a seasonal temperature swing of 27°F / from 40°F in December to 67°F in July. Total annual precipitation is 31.9 inches, with November being the wettest month (5.4") and July the driest (0.7").