Westfield weather by month
What a typical year looks like in Westfield, Massachusetts: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Hartford-Bradley International Airport, 23 km from Westfield; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 47.1 in1195 mm
- Snow a year
- 52 in131 cm
- Last spring freeze
- Apr 18
- First fall freeze
- Oct 14
- Heating degree days
- 5,883
- Cooling degree days
- 819
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 1°−17° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Westfield in January
Highs average 35°2° and lows 19°−7°, with 3.3 in83 mm of precipitation and 14 in36 cm of snow in a typical January.
- Record high
- 72°22° (2007)
- Record low
- −26°−32° (1961)
- Heating degree days
- 1176
- Cooling degree days
- 0
Westfield in February
Highs average 39°4° and lows 21°−6°, with 3.1 in80 mm of precipitation and 15 in38 cm of snow in a typical February.
- Record high
- 77°25° (2018)
- Record low
- −24°−31° (1943)
- Heating degree days
- 991
- Cooling degree days
- 0
Westfield in March
Highs average 47°8° and lows 28°−2°, with 3.8 in97 mm of precipitation and 9 in24 cm of snow in a typical March.
- Record high
- 89°32° (1998)
- Record low
- −6°−21° (1967)
- Heating degree days
- 845
- Cooling degree days
- 0
Westfield in April
Highs average 61°16° and lows 38°4°, with 3.9 in99 mm of precipitation and 1.1 in2.8 cm of snow in a typical April.
- Record high
- 96°36° (1976)
- Record low
- 9°−13° (1970)
- Heating degree days
- 473
- Cooling degree days
- 7
Westfield in May
Highs average 72°22° and lows 48°9°, with 3.8 in96 mm of precipitation in a typical May.
- Record high
- 99°37° (1996)
- Record low
- 28°−2° (1947)
- Heating degree days
- 193
- Cooling degree days
- 40
Westfield in June
Highs average 80°27° and lows 58°14°, with 4.3 in109 mm of precipitation in a typical June.
- Record high
- 100°38° (1952)
- Record low
- 37°3° (1964)
- Heating degree days
- 35
- Cooling degree days
- 150
Westfield in July
Highs average 85°30° and lows 63°17°, with 4.2 in106 mm of precipitation in a typical July.
- Record high
- 103°39° (2011)
- Record low
- 44°7° (1962)
- Heating degree days
- 2
- Cooling degree days
- 290
Westfield in August
Highs average 83°29° and lows 62°17°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 102°39° (2001)
- Record low
- 36°2° (1965)
- Heating degree days
- 6
- Cooling degree days
- 238
Westfield in September
Highs average 76°24° and lows 54°12°, with 4.4 in112 mm of precipitation in a typical September.
- Record high
- 101°38° (1953)
- Record low
- 30°−1° (1947)
- Heating degree days
- 93
- Cooling degree days
- 86
Westfield in OctoberThis month
Highs average 64°18° and lows 42°6°, with 4.5 in115 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 91°33° (1927)
- Record low
- 17°−8° (1978)
- Heating degree days
- 382
- Cooling degree days
- 8
Westfield in November
Highs average 52°11° and lows 33°1°, with 3.5 in89 mm of precipitation and 1.4 in3.6 cm of snow in a typical November.
- Record high
- 84°29° (2024)
- Record low
- 1°−17° (1989)
- Heating degree days
- 683
- Cooling degree days
- 0
Westfield in December
Highs average 41°5° and lows 25°−4°, with 4.1 in104 mm of precipitation and 10 in26 cm of snow in a typical December.
- Record high
- 76°24° (1998)
- Record low
- −18°−28° (1917)
- Heating degree days
- 1004
- Cooling degree days
- 0