Weather & Climate in Braintree Town, MA

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

Braintree Town experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 27°F in January while summers reach 73°F in July. The area gets 259 sunny days per year, above the national average. Annual precipitation totals 53.9 inches (wetter than the 38-inch national average). The area receives 69.7 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 37. The city sits at an elevation of 115 feet.

Temperature

27°F Jan (-3°C) 73°F Jul (23°C)

Annual Average	49.7°F
	8% below US avg
January Average	27°F (-3°C)
July Average	73°F (23°C)
Sunny Days	259 days/yr

Geography

Elevation	115 ft (35 m)
Area	5.6 sq mi (14.5 km²)
Population Density	2,817/sq mi
Coordinates	42.2062°N, 71.0023°W
Timezone	America/New_York
County	Suffolk County County
Nearest Airport	General Edward Lawrence Logan International (BOS) 11 miles away

Precipitation & Snow

Annual Rainfall 53.9"

42% above US avg

Snowfall 69.7"

Wettest Month (Nov) 4.29"

Driest Month (Jul) 3.35"

Air Quality

AQI Median	37.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	93.5 / 100
Social Vulnerability	70.6 / 100
Community Resilience	95.5 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Hurricane	Relatively High
Earthquake	Relatively Moderate
Wildfire	Very Low
Flood	Relatively High
Hail	Relatively Moderate
Strong Wind	Relatively Moderate
Heat Wave	Relatively High
Winter Weather	Relatively Low
Lightning	Very High
Ice Storm	Relatively Moderate
Drought	No Rating
Cold Wave	Relatively High
Landslide	Very Low
Coastal Flood	Relatively High

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

Earthquake History

26 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	102 km	11 km
Oct 2, 1994	6 km W of Hardwick, Massachusetts	M3.7	106 km	10 km
Oct 6, 1992	1 km SW of Canterbury, New Hampshire	M3.4	133 km	5 km
Jan 12, 2015	0 km NE of Wauregan, Connecticut	M3.3	90 km	5 km
Oct 2, 1994	1 km NW of Hardwick, Massachusetts	M3.3	102 km	10 km
Sep 26, 2010	2 km SW of Canterbury, New Hampshire	M3.2	133 km	5 km
Mar 22, 1996	2 km NE of Bristol, Rhode Island	M3.1	61 km	12 km
Jan 10, 1999	2 km ENE of Merrimac, Massachusetts	M3.1	71 km	2 km
Jan 27, 2000	3 km WNW of Fremont, New Hampshire	M3.0	90 km	1 km
Jan 10, 1999	1 km NNE of Merrimac, Massachusetts	M3.0	71 km	2 km
Jul 22, 2003	72 km NNE of Provincetown, Massachusetts	M3.0	114 km	10 km
Jan 8, 1998	52 km ENE of Rockport, Massachusetts	M2.9	107 km	25 km
Jun 7, 2010	29 km SE of York Beach, Maine	M2.9	107 km	10 km
Sep 28, 2002	2 km N of Wilton, New Hampshire	M2.8	95 km	5 km
Mar 21, 2016	4 km ESE of Warner, New Hampshire	M2.8	133 km	7 km
Mar 9, 2008	25 km SE of York Beach, Maine	M2.8	105 km	0 km
Oct 13, 1999	2 km E of Littleton Common, Massachusetts	M2.7	53 km	2 km
Feb 15, 2018	0 km SE of East Kingston, New Hampshire	M2.7	79 km	7 km
Sep 30, 1991	0 km SSE of Bedford, New Hampshire	M2.7	92 km	4 km
Oct 11, 1990	5 km NNE of The Pinehills, Massachusetts	M2.7	47 km	13 km

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

Hurricane History

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

Year	Name	Category	Max Wind	Closest
2014	Arthur	Category 1	75 mph	248 km
1996	Edouard	Category 1	81 mph	284 km
1991	Bob	Category 2	104 mph	60 km
1985	Gloria	Category 1	86 mph	152 km

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

Tornado History

157 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 fatalities, 99 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 22, 1981	EF3	91 km	7.1 mi	0
Sep 29, 1974	EF3	48 km	0.1 mi	0
Oct 3, 1970	EF3	97 km	35.4 mi	1
Jun 9, 1953	EF3	63 km	28.0 mi	0
Jun 9, 1953	EF3	85 km	1.5 mi	0
Aug 18, 2023	EF2	66 km	9.1 mi	0
Jul 28, 2014	EF2	21 km	1.9 mi	0
May 21, 2006	EF2	80 km	0.1 mi	0
Aug 7, 1986	EF2	61 km	4.0 mi	0
Aug 10, 1979	EF2	94 km	9.7 mi	2
Jul 21, 1972	EF2	63 km	7.6 mi	0
Aug 28, 1970	EF2	68 km	1.0 mi	0
Jul 17, 1968	EF2	95 km	0.1 mi	0
Nov 18, 1967	EF2	28 km	0.1 mi	0
Aug 31, 1966	EF2	67 km	1.0 mi	0
Aug 28, 1965	EF2	61 km	2.0 mi	0
Jun 9, 1963	EF2	97 km	10.0 mi	0
May 20, 1963	EF2	61 km	1.5 mi	0
May 20, 1963	EF2	99 km	3.8 mi	0
May 20, 1963	EF2	54 km	0.3 mi	0

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

Wildfire History

1 wildfire (100+ acres) recorded within 100 km. Largest: THE RANGE (760 acres, 2005).

Year	Name	Acres Burned	Distance
2005	THE RANGE	760	63 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	27°F (-3°C)	4.1 in	Coldest
February	29°F (-2°C)	3.5 in
March	37°F (3°C)	4.2 in
April	47°F (8°C)	3.8 in
May	58°F (14°C)	3.5 in
June	67°F (19°C)	3.5 in
July	73°F (23°C)	3.4 in	Warmest, Driest
August	71°F (22°C)	3.8 in
September	63°F (17°C)	3.7 in
October	52°F (11°C)	3.9 in
November	43°F (6°C)	4.3 in	Wettest
December	33°F (0°C)	4.1 in

Braintree Town has a seasonal temperature swing of 46°F / from 27°F in January to 73°F in July. Total annual precipitation is 45.6 inches, with November being the wettest month (4.3") and July the driest (3.4").

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