Hatfield weather by month
What a typical year looks like in Hatfield, Massachusetts: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at AMHERST, 6 km from Hatfield; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 46.6 in1183 mm
- Snow a year
- 37 in93 cm
- Last spring freeze
- May 8
- First fall freeze
- Oct 8
- Heating degree days
- 6,665
- Cooling degree days
- 580
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −6°−21° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Hatfield in January
Highs average 34°1° and lows 14°−10°, with 3.4 in85 mm of precipitation and 8 in21 cm of snow in a typical January.
- Record high
- 70°21° (2007)
- Record low
- −30°−34° (1961)
- Heating degree days
- 1274
- Cooling degree days
- 0
Hatfield in February
Highs average 37°3° and lows 15°−9°, with 2.9 in74 mm of precipitation and 11 in28 cm of snow in a typical February.
- Record high
- 78°26° (2018)
- Record low
- −27°−33° (1961)
- Heating degree days
- 1088
- Cooling degree days
- 0
Hatfield in March
Highs average 45°7° and lows 24°−4°, with 3.5 in88 mm of precipitation and 7 in19 cm of snow in a typical March.
- Record high
- 85°29° (1945)
- Record low
- −17°−27° (1967)
- Heating degree days
- 941
- Cooling degree days
- 0
Hatfield in April
Highs average 58°15° and lows 34°1°, with 3.8 in96 mm of precipitation and 1 in2.5 cm of snow in a typical April.
- Record high
- 93°34° (1976)
- Record low
- 8°−13° (1923)
- Heating degree days
- 564
- Cooling degree days
- 3
Hatfield in May
Highs average 70°21° and lows 45°7°, with 3.7 in94 mm of precipitation in a typical May.
- Record high
- 98°37° (2010)
- Record low
- 24°−4° (1966)
- Heating degree days
- 259
- Cooling degree days
- 25
Hatfield in June
Highs average 78°26° and lows 55°13°, with 4.5 in113 mm of precipitation in a typical June.
- Record high
- 101°38° (1919)
- Record low
- 29°−2° (1907)
- Heating degree days
- 61
- Cooling degree days
- 106
Hatfield in July
Highs average 83°28° and lows 60°16°, with 4.1 in105 mm of precipitation in a typical July.
- Record high
- 104°40° (1911)
- Record low
- 39°4° (1908)
- Heating degree days
- 8
- Cooling degree days
- 214
Hatfield in August
Highs average 82°28° and lows 58°15°, with 4.1 in105 mm of precipitation in a typical August.
- Record high
- 100°38° (1918)
- Record low
- 32°0° (1965)
- Heating degree days
- 18
- Cooling degree days
- 170
Hatfield in September
Highs average 74°24° and lows 50°10°, with 4.6 in117 mm of precipitation in a typical September.
- Record high
- 99°37° (1953)
- Record low
- 25°−4° (1914)
- Heating degree days
- 138
- Cooling degree days
- 58
Hatfield in OctoberThis month
Highs average 62°17° and lows 39°4°, with 4.7 in120 mm of precipitation in a typical October.
- Record high
- 90°32° (1908)
- Record low
- 12°−11° (1974)
- Heating degree days
- 461
- Cooling degree days
- 4
Hatfield in November
Highs average 50°10° and lows 29°−2°, with 3.4 in86 mm of precipitation and 1.6 in4.1 cm of snow in a typical November.
- Record high
- 82°28° (1950)
- Record low
- −4°−20° (1938)
- Heating degree days
- 768
- Cooling degree days
- 0
Hatfield in December
Highs average 39°4° and lows 21°−6°, with 3.9 in99 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 72°22° (1998)
- Record low
- −22°−30° (1917)
- Heating degree days
- 1085
- Cooling degree days
- 0