All Countries
Weather & Climate in Dexter, ME
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Dexter has a cool climate with an average annual temperature of 43°F (6°C). Winters average 17°F in January while summers reach 68°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 42.9 inches. Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 338 feet.
Temperature
17°F Jan (-8°C)
68°F Jul (20°C)
| Annual Average | 43.3°F |
| 20% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 338 ft (103 m) |
| Area | 5.3 sq mi (13.8 km²) |
| Population Density | 390/sq mi |
| Coordinates | 45.0162°N, 69.2947°W |
| Timezone | America/New_York |
| County | Somerset County County |
| Nearest Airport | Bangor International (BGR) 27 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 67.9 / 100 |
| Social Vulnerability | 41.1 / 100 |
| Community Resilience | 53.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
40 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 26, 1999 | 0 km NW of China, Maine | M3.8 | 62 km | 3 km |
| Sep 16, 1994 | 7 km SE of Lee, Maine | M3.6 | 90 km | 5 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.6 | 91 km | 5 km |
| Jan 17, 2000 | 4 km NNE of Dixfield, Maine | M3.6 | 103 km | 16 km |
| Jan 3, 2000 | 4 km W of Leeds, Maine | M3.5 | 105 km | 10 km |
| Oct 25, 2001 | 4 km S of Howland, Maine | M3.3 | 53 km | 9 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.3 | 91 km | 5 km |
| Jan 14, 2023 | 7 km ESE of Dedham, Maine | M3.3 | 69 km | 10 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.3 | 91 km | 5 km |
| Sep 7, 2000 | 7 km WSW of Liberty, Maine | M3.2 | 74 km | 5 km |
| Sep 5, 1994 | 13 km NNE of Monhegan, Maine | M3.1 | 129 km | 5 km |
| Aug 17, 2022 | 3 km SE of Centerville, Maine | M3.0 | 135 km | 5 km |
| Dec 25, 1999 | 4 km NE of Saint Albans, Maine | M3.0 | 10 km | 5 km |
| Mar 30, 2010 | 7 km WSW of Dedham, Maine | M3.0 | 57 km | 4 km |
| Nov 20, 1994 | 4 km WNW of Norway, Maine | M3.0 | 135 km | 5 km |
| Jan 17, 2021 | 4 km ESE of Centerville, Maine | M2.9 | 136 km | 5 km |
| Aug 11, 2022 | Maine | M2.8 | 137 km | 4 km |
| Feb 12, 1995 | 1 km NNE of Turner, Maine | M2.8 | 113 km | 5 km |
| Jul 28, 2024 | 6 km W of Gardiner, Maine | M2.8 | 98 km | 8 km |
| Aug 11, 2022 | 4 km E of Centerville, Maine | M2.8 | 136 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2008 | Kyle | Category 1 | 75 mph | 281 km |
| 1991 | Bob | Category 1 | — | 286 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
41 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 9, 2000 | EF2 | 36 km | 3.0 mi | 0 |
| Jul 8, 1996 | EF2 | 98 km | 1.5 mi | 0 |
| Nov 7, 1971 | EF2 | 76 km | 5.1 mi | 0 |
| Nov 7, 1971 | EF2 | 48 km | 4.1 mi | 0 |
| Jul 31, 1971 | EF2 | 100 km | 0.5 mi | 0 |
| Jul 31, 1971 | EF2 | 87 km | 2.0 mi | 0 |
| Jul 31, 1971 | EF2 | 95 km | 1.9 mi | 0 |
| Aug 20, 1962 | EF2 | 24 km | 0.1 mi | 0 |
| Sep 4, 1961 | EF2 | 40 km | 0.5 mi | 0 |
| Aug 16, 1959 | EF2 | 55 km | 2.0 mi | 0 |
| Aug 5, 2017 | EF1 | 89 km | 2.5 mi | 0 |
| Jul 15, 2014 | EF1 | 15 km | 2.8 mi | 0 |
| Jun 1, 2011 | EF1 | 59 km | 8.4 mi | 0 |
| Jun 21, 1997 | EF1 | 65 km | 0.2 mi | 0 |
| Jun 28, 1991 | EF1 | 18 km | 0.7 mi | 0 |
| Jun 18, 1989 | EF1 | 68 km | 1.3 mi | 0 |
| Jul 23, 1978 | EF1 | 66 km | 0.2 mi | 0 |
| Aug 14, 1977 | EF1 | 94 km | 0.3 mi | 0 |
| Jul 25, 1975 | EF1 | 84 km | 1.8 mi | 0 |
| Jun 12, 1973 | EF1 | 83 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.6 m (12 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2008 | MAINE | Avalanche | 3.6 m | — | 139 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 3.1 in | Coldest |
| February | 17°F (-8°C) | 2.8 in | Driest |
| March | 27°F (-3°C) | 3.0 in | |
| April | 40°F (4°C) | 3.5 in | |
| May | 52°F (11°C) | 3.6 in | |
| June | 62°F (16°C) | 3.7 in | |
| July | 68°F (20°C) | 3.6 in | Warmest |
| August | 65°F (18°C) | 3.8 in | |
| September | 57°F (14°C) | 3.8 in | |
| October | 45°F (7°C) | 3.7 in | |
| November | 34°F (1°C) | 4.4 in | Wettest |
| December | 22°F (-6°C) | 4.0 in |
Dexter has a seasonal temperature swing of 51°F / from 17°F in January to 68°F in July. Total annual precipitation is 43.1 inches, with November being the wettest month (4.4") and February the driest (2.8").