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Weather & Climate in Greenville, ME
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Greenville has a cool climate with an average annual temperature of 41°F (5°C). Winters average 14°F in January while summers reach 66°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 44.5 inches. Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 1,194 feet.
Temperature
14°F Jan (-10°C)
66°F Jul (19°C)
| Annual Average | 41.2°F |
| 24% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 1,194 ft (364 m) |
| Area | 4.8 sq mi (12.4 km²) |
| Population Density | 215/sq mi |
| Coordinates | 45.4661°N, 69.5779°W |
| Timezone | America/New_York |
| County | Somerset County County |
| Nearest Airport | Bangor International (BGR) 58 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
29 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 | 110 km | 3 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.6 | 109 km | 5 km |
| Sep 16, 1994 | 7 km SE of Lee, Maine | M3.6 | 107 km | 5 km |
| Jan 17, 2000 | 4 km NNE of Dixfield, Maine | M3.6 | 121 km | 16 km |
| Jan 3, 2000 | 4 km W of Leeds, Maine | M3.5 | 137 km | 10 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.3 | 109 km | 5 km |
| Sep 16, 1994 | 9 km SE of Lee, Maine | M3.3 | 109 km | 5 km |
| Oct 25, 2001 | 4 km S of Howland, Maine | M3.3 | 77 km | 9 km |
| Jan 14, 2023 | 7 km ESE of Dedham, Maine | M3.3 | 119 km | 10 km |
| Sep 7, 2000 | 7 km WSW of Liberty, Maine | M3.2 | 125 km | 5 km |
| Mar 30, 2010 | 7 km WSW of Dedham, Maine | M3.0 | 110 km | 4 km |
| Dec 25, 1999 | 4 km NE of Saint Albans, Maine | M3.0 | 61 km | 5 km |
| Jul 28, 2024 | 6 km W of Gardiner, Maine | M2.8 | 139 km | 8 km |
| Feb 12, 1995 | 1 km NNE of Turner, Maine | M2.8 | 144 km | 5 km |
| Sep 25, 2019 | 31 km WNW of Oxbow, Maine | M2.7 | 136 km | 5 km |
| Mar 25, 2011 | 6 km NNE of Burlington, Maine | M2.7 | 96 km | 9 km |
| Jun 21, 2013 | 5 km W of Vassalboro, Maine | M2.6 | 112 km | 9 km |
| May 2, 2011 | 3 km SW of Prospect, Maine | M2.6 | 117 km | 5 km |
| Jan 15, 2016 | 4 km SW of Beddington, Maine | M2.6 | 137 km | 10 km |
| Feb 15, 2017 | 18 km WNW of Grand Lake Stream, Maine | M2.6 | 127 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
30 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Aug 9, 2000 | EF2 | 71 km | 3.0 mi | 0 |
| Nov 7, 1971 | EF2 | 81 km | 4.1 mi | 0 |
| Nov 7, 1971 | EF2 | 84 km | 5.1 mi | 0 |
| Jun 30, 1971 | EF2 | 88 km | 13.3 mi | 0 |
| Aug 20, 1962 | EF2 | 49 km | 0.1 mi | 0 |
| Sep 4, 1961 | EF2 | 75 km | 0.5 mi | 0 |
| Aug 16, 1959 | EF2 | 89 km | 2.0 mi | 0 |
| Aug 5, 2017 | EF1 | 73 km | 2.5 mi | 0 |
| Jul 15, 2014 | EF1 | 63 km | 2.8 mi | 0 |
| Jul 19, 2013 | EF1 | 90 km | 2.1 mi | 0 |
| Jun 1, 2011 | EF1 | 71 km | 8.4 mi | 0 |
| Aug 31, 1993 | EF1 | 77 km | 1.0 mi | 0 |
| Jun 28, 1991 | EF1 | 68 km | 0.7 mi | 0 |
| Jun 18, 1989 | EF1 | 90 km | 1.3 mi | 0 |
| May 23, 1984 | EF1 | 57 km | 0.3 mi | 0 |
| Jul 23, 1978 | EF1 | 70 km | 0.2 mi | 0 |
| Jul 25, 1975 | EF1 | 58 km | 1.8 mi | 0 |
| Aug 11, 1971 | EF1 | 51 km | 0.2 mi | 0 |
| Oct 3, 1970 | EF1 | 75 km | 9.5 mi | 0 |
| Jul 1, 1963 | EF1 | 58 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 2.8 in | |
| February | 13°F (-10°C) | 2.5 in | Coldest, Driest |
| March | 23°F (-5°C) | 2.9 in | |
| April | 36°F (2°C) | 3.3 in | |
| May | 49°F (10°C) | 3.5 in | |
| June | 59°F (15°C) | 4.0 in | |
| July | 66°F (19°C) | 4.0 in | Warmest |
| August | 63°F (17°C) | 4.0 in | |
| September | 54°F (12°C) | 3.7 in | |
| October | 43°F (6°C) | 3.6 in | |
| November | 32°F (0°C) | 4.2 in | Wettest |
| December | 19°F (-7°C) | 3.7 in |
Greenville has a seasonal temperature swing of 53°F / from 13°F in February to 66°F in July. Total annual precipitation is 42.2 inches, with November being the wettest month (4.2") and February the driest (2.5").