Weather & Climate in Plymouth, MA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Plymouth experiences four distinct seasons with an average annual temperature of 53°F (11°C). Winters average 31°F in January while summers reach 74°F in July. The area gets 271 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 52.8 inches (wetter than the 38-inch national average). The area receives 37.9 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 37. 87% of days have good air quality. The city sits at an elevation of 35 feet.

Temperature

31°F Jan (-0°C) 74°F Jul (23°C)

Annual Average	52.5°F
	3% below US avg
January Average	31°F (-0°C)
July Average	74°F (23°C)
Sunny Days	271 days/yr

Geography

Elevation	35 ft (11 m)
Area	3.9 sq mi (10.0 km²)
Population Density	3,505/sq mi
Coordinates	41.9583°N, 70.6638°W
Timezone	America/New_York
County	Plymouth County County
Nearest Airport	New Bedford Regional (EWB) 25 miles away

Precipitation & Snow

Annual Rainfall 52.8"

39% above US avg

Snowfall 37.9"

Wettest Month (Nov) 4.72"

Driest Month (Jul) 3.23"

Air Quality

AQI Median	37.0
Rating	Good
Good Days %	87.2%
Unhealthy Days	0

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	90.4 / 100
Social Vulnerability	12.8 / 100
Community Resilience	98.6 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	Relatively Moderate
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Moderate
Hail	Very Low
Strong Wind	Relatively High
Heat Wave	Relatively Moderate
Winter Weather	Relatively Low
Lightning	Relatively High
Ice Storm	Relatively High
Drought	Relatively Moderate
Cold Wave	Relatively Low
Landslide	Very Low
Coastal Flood	Very High

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

23 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.

Jan 27, 2025	9 km SE of York Harbor, Maine	M3.8	123 km	11 km
Oct 2, 1994	6 km W of Hardwick, Massachusetts	M3.7	140 km	10 km
Jan 12, 2015	0 km NE of Wauregan, Connecticut	M3.3	105 km	5 km
Oct 2, 1994	1 km NW of Hardwick, Massachusetts	M3.3	136 km	10 km
Mar 22, 1996	2 km NE of Bristol, Rhode Island	M3.1	56 km	12 km
Jan 10, 1999	2 km ENE of Merrimac, Massachusetts	M3.1	101 km	2 km
Jan 27, 2000	3 km WNW of Fremont, New Hampshire	M3.0	123 km	1 km
Mar 12, 2002	52 km E of Chatham, Massachusetts	M3.0	117 km	1 km
Jan 10, 1999	1 km NNE of Merrimac, Massachusetts	M3.0	102 km	2 km
Jul 22, 2003	72 km NNE of Provincetown, Massachusetts	M3.0	106 km	10 km
Jun 7, 2010	29 km SE of York Beach, Maine	M2.9	122 km	10 km
Jan 8, 1998	52 km ENE of Rockport, Massachusetts	M2.9	112 km	25 km
Mar 9, 2008	25 km SE of York Beach, Maine	M2.8	121 km	0 km
Sep 28, 2002	2 km N of Wilton, New Hampshire	M2.8	134 km	5 km
Oct 13, 1999	2 km E of Littleton Common, Massachusetts	M2.7	92 km	2 km
Sep 30, 1991	0 km SSE of Bedford, New Hampshire	M2.7	130 km	4 km
Feb 15, 2018	0 km SE of East Kingston, New Hampshire	M2.7	111 km	7 km
Oct 11, 1990	5 km NNE of The Pinehills, Massachusetts	M2.7	8 km	13 km
Jan 13, 2015	2 km E of Wauregan, Connecticut	M2.6	104 km	9 km
Apr 22, 1996	3 km NE of North Westport, Massachusetts	M2.6	45 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.

Year	Name	Category	Max Wind	Closest
2021	Henri	Category 1	75 mph	286 km
2014	Arthur	Category 1	75 mph	212 km
1996	Edouard	Category 1	81 mph	245 km
1991	Bob	Category 2	104 mph	73 km
1985	Gloria	Category 1	86 mph	177 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

104 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 2 fatalities, 66 injuries.

Date	Rating	Distance	Path	Fatalities
Sep 29, 1974	EF3	85 km	0.1 mi	0
Jun 9, 1953	EF3	94 km	28.0 mi	0
Aug 18, 2023	EF2	77 km	9.1 mi	0
Jul 28, 2014	EF2	57 km	1.9 mi	0
Aug 7, 1986	EF2	68 km	4.0 mi	0
Aug 28, 1970	EF2	44 km	1.0 mi	0
Nov 18, 1967	EF2	20 km	0.1 mi	0
Aug 28, 1965	EF2	99 km	2.0 mi	0
May 20, 1963	EF2	99 km	1.5 mi	0
May 20, 1963	EF2	91 km	0.3 mi	0
Aug 25, 1958	EF2	69 km	1.0 mi	0
Jul 11, 1958	EF2	80 km	1.5 mi	0
Nov 21, 1956	EF2	98 km	0.8 mi	0
Nov 21, 1956	EF2	48 km	0.1 mi	0
Nov 21, 1956	EF2	99 km	0.1 mi	0
Dec 18, 1951	EF2	66 km	0.1 mi	0
Aug 21, 1951	EF2	91 km	9.3 mi	0
Jun 26, 2024	EF1	55 km	0.6 mi	0
Jun 26, 2024	EF1	65 km	8.6 mi	0
Sep 13, 2023	EF1	97 km	1.6 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

1 wildfire (100+ acres) recorded within 100 km. Largest: NOMANS AERIAL RX (546 acres, 2008).

Year	Name	Acres Burned	Distance
2008	NOMANS AERIAL RX	546	79 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	31°F (-0°C)	4.3 in
February	30°F (-1°C)	3.9 in	Coldest
March	37°F (3°C)	4.4 in
April	46°F (8°C)	4.3 in
May	56°F (13°C)	3.6 in
June	65°F (18°C)	3.5 in
July	74°F (23°C)	3.2 in	Warmest, Driest
August	70°F (21°C)	3.8 in
September	63°F (17°C)	4.2 in
October	53°F (11°C)	4.1 in
November	44°F (7°C)	4.7 in	Wettest
December	34°F (1°C)	4.5 in

Plymouth has a seasonal temperature swing of 44°F / from 30°F in February to 74°F in July. Total annual precipitation is 48.3 inches, with November being the wettest month (4.7") and July the driest (3.2").

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