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Deerfield, MA

Full City Profile · Massachusetts · Franklin County County

3.0 /5.0
B Good
441 Population 240/sq mi density
48°F Avg Temperature 246 sunny days/yr
99 Violent Crime/100K 855 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
99 violent crimes/100K
A+
Education
5.0 / 5.0
70.6% bachelor's degree or higher
Deerfield experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 24°F in January while summers reach 71°F in July. The area gets 246 sunny days per year. Annual precipitation totals 49.4 inches. Air quality is rated Good with a median AQI of 37.

Temperature

24°F Jan (-4°C) 71°F Jul (22°C)
Annual Average48.0°F
11% below US avg
January Average24°F (-4°C)
July Average71°F (22°C)
Sunny Days246 days/yr

Geography

Elevation144 ft (44 m)
Area1.9 sq mi (4.8 km²)
Population Density240/sq mi
Coordinates42.5479°N, 72.6024°W
TimezoneAmerica/New_York
CountyFranklin County County
Nearest AirportWestfield-Barnes Regional (BAF)
28 miles away

Precipitation & Snow

Annual Rainfall 49.4"
30% above US avg
Wettest Month (May) 4.17"
Driest Month (Feb) 3.03"

Air Quality

AQI Median37.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0398 ppm
PM2.5 (Fine Particles)8.1 μg/m³

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score60.7 / 100
Social Vulnerability33.0 / 100
Community Resilience93.5 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Relatively Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Low
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Relatively Moderate
Ice Storm Relatively Moderate
Drought Relatively Low
Cold Wave Relatively Low
Landslide Relatively Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

36 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.7. Most recent: M3.1 on Mar 11, 2020.

Oct 2, 1994 6 km W of Hardwick, Massachusetts M3.7 35 km
Oct 6, 1992 1 km SW of Canterbury, New Hampshire M3.4 120 km
Jan 12, 2015 0 km NE of Wauregan, Connecticut M3.3 106 km
Jun 16, 2000 5 km NE of Granville, Massachusetts M3.3 53 km
Oct 2, 1994 1 km NW of Hardwick, Massachusetts M3.3 38 km
Sep 26, 2010 2 km SW of Canterbury, New Hampshire M3.2 119 km
Dec 13, 2009 15 km N of Medusa, New York M3.2 123 km
Mar 22, 1996 2 km NE of Bristol, Rhode Island M3.1 147 km
Jan 10, 1999 2 km ENE of Merrimac, Massachusetts M3.1 137 km
Mar 11, 2020 0 km SSW of South Glens Falls, New York M3.1 118 km
Jul 24, 2007 12 km SSW of Altamont, New York M3.1 124 km
May 18, 2009 15 km N of Medusa, New York M3.1 124 km
Jan 10, 1999 1 km NNE of Merrimac, Massachusetts M3.0 135 km
Jan 27, 2000 3 km WNW of Fremont, New Hampshire M3.0 127 km
Oct 21, 2009 15 km N of Medusa, New York M2.9 123 km
May 14, 2007 5 km ESE of Benson, Vermont M2.8 138 km
Mar 21, 2016 4 km ESE of Warner, New Hampshire M2.8 105 km
Sep 28, 2002 2 km N of Wilton, New Hampshire M2.8 80 km
Mar 23, 1992 5 km SE of Hill, New Hampshire M2.8 131 km
Mar 22, 2009 9 km SW of Altamont, New York M2.8 124 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

2 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2. Most recent: Bob (1991, Cat 2).

Year Name Category Closest
1991 Bob Category 2 162 km
1985 Gloria Category 1 74 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tornado History

240 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 110 fatalities, 2,057 injuries.

Date Rating Distance Fatalities
May 29, 1995 EF4 78 km 3
Oct 3, 1979 EF4 75 km 3
Aug 28, 1973 EF4 69 km 4
Jun 9, 1953 EF4 37 km 94
Jun 1, 2011 EF3 51 km 3
Jun 22, 1981 EF3 47 km 0
Sep 13, 1971 EF3 25 km 0
Oct 3, 1970 EF3 43 km 1
Aug 20, 1968 EF3 64 km 0
May 20, 1963 EF3 57 km 0
May 10, 1954 EF3 71 km 0
Jun 9, 1953 EF3 80 km 0
Jul 11, 2006 EF2 17 km 0
Jul 21, 2003 EF2 92 km 0
Jun 5, 2002 EF2 71 km 0
Jun 23, 2001 EF2 94 km 0
May 31, 1998 EF2 86 km 0
May 31, 1998 EF2 76 km 0
Jul 3, 1997 EF2 76 km 0
Jul 3, 1997 EF2 66 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

2 wildfires (100+ acres) within 100 km. Largest: EAST MOUNTAIN (964 ac, 2021).

Year Name Acres Distance
2021 EAST MOUNTAIN 964 49 km
2005 THE RANGE 760 78 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-4°C) 3.4 in
February 24°F (-5°C) 3.0 in Coldest, Driest
March 33°F (1°C) 3.5 in
April 44°F (7°C) 3.9 in
May 56°F (13°C) 4.2 in Wettest
June 65°F (18°C) 3.9 in
July 71°F (22°C) 3.9 in Warmest
August 69°F (20°C) 4.0 in
September 61°F (16°C) 3.6 in
October 49°F (10°C) 3.7 in
November 39°F (4°C) 4.1 in
December 28°F (-2°C) 3.7 in

Deerfield has a seasonal temperature swing of 47°F / from 24°F in February to 71°F in July. Total annual precipitation is 45.1 inches, with May being the wettest month (4.2") and February the driest (3.0").

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