Chester weather by month
What a typical year looks like in Chester, Massachusetts: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Lenox Dale, 23 km from Chester; records cover 1996–2026.
The year at a glance
- Precipitation a year
- 49.1 in1247 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Oct 6
- Heating degree days
- 7,246
- Cooling degree days
- 406
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −8°−22° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Chester in January
Highs average 32°0° and lows 13°−11°, with 3.5 in90 mm of precipitation in a typical January.
- Record high
- 66°19° (2007)
- Record low
- −18°−28° (2005)
- Heating degree days
- 1328
- Cooling degree days
- 0
Chester in February
Highs average 35°2° and lows 14°−10°, with 3.1 in78 mm of precipitation in a typical February.
- Record high
- 73°23° (2018)
- Record low
- −18°−28° (2016)
- Heating degree days
- 1135
- Cooling degree days
- 0
Chester in March
Highs average 43°6° and lows 21°−6°, with 3.7 in94 mm of precipitation in a typical March.
- Record high
- 86°30° (1998)
- Record low
- −13°−25° (2003)
- Heating degree days
- 1014
- Cooling degree days
- 0
Chester in April
Highs average 56°13° and lows 32°0°, with 3.8 in95 mm of precipitation in a typical April.
- Record high
- 91°33° (2002)
- Record low
- 7°−14° (2016)
- Heating degree days
- 632
- Cooling degree days
- 2
Chester in May
Highs average 69°20° and lows 43°6°, with 4.2 in105 mm of precipitation in a typical May.
- Record high
- 94°34° (2010)
- Record low
- 24°−4° (2002)
- Heating degree days
- 301
- Cooling degree days
- 19
Chester in June
Highs average 77°25° and lows 52°11°, with 4.8 in122 mm of precipitation in a typical June.
- Record high
- 97°36° (2008)
- Record low
- 32°0° (2001)
- Heating degree days
- 88
- Cooling degree days
- 73
Chester in July
Highs average 82°28° and lows 57°14°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 96°36° (2010)
- Record low
- 41°5° (2001)
- Heating degree days
- 18
- Cooling degree days
- 156
Chester in August
Highs average 81°27° and lows 55°13°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 97°36° (2001)
- Record low
- 40°4° (2000)
- Heating degree days
- 30
- Cooling degree days
- 120
Chester in September
Highs average 72°22° and lows 48°9°, with 4.5 in114 mm of precipitation in a typical September.
- Record high
- 94°34° (2010)
- Record low
- 25°−4° (2000)
- Heating degree days
- 187
- Cooling degree days
- 34
Chester in OctoberThis month
Highs average 59°15° and lows 37°3°, with 4.8 in121 mm of precipitation in a typical October.
- Record high
- 87°31° (2007)
- Record low
- 17°−8° (2002)
- Heating degree days
- 526
- Cooling degree days
- 2
Chester in November
Highs average 47°8° and lows 28°−2°, with 3.6 in92 mm of precipitation in a typical November.
- Record high
- 76°24° (2024)
- Record low
- −1°−18° (2018)
- Heating degree days
- 832
- Cooling degree days
- 0
Chester in December
Highs average 36°2° and lows 19°−7°, with 4.5 in114 mm of precipitation in a typical December.
- Record high
- 69°21° (2001)
- Record low
- −12°−24° (2005)
- Heating degree days
- 1155
- Cooling degree days
- 0