Brockton weather by month
What a typical year looks like in Brockton, Massachusetts: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Blue Hill Lcd, 16 km from Brockton; records cover 1959–2026.
The year at a glance
- Precipitation a year
- 53.3 in1353 mm
- Snow a year
- 69 in176 cm
- Last spring freeze
- Apr 17
- First fall freeze
- Oct 26
- Heating degree days
- 6,165
- Cooling degree days
- 626
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 2°−17° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Brockton in January
Highs average 35°2° and lows 19°−7°, with 4.5 in113 mm of precipitation and 18 in46 cm of snow in a typical January.
- Record high
- 68°20° (2020)
- Record low
- −11°−24° (2004)
- Heating degree days
- 1179
- Cooling degree days
- 0
Brockton in February
Highs average 37°3° and lows 21°−6°, with 4 in101 mm of precipitation and 21 in54 cm of snow in a typical February.
- Record high
- 71°22° (2017)
- Record low
- −14°−26° (2016)
- Heating degree days
- 1004
- Cooling degree days
- 0
Brockton in March
Highs average 45°7° and lows 28°−2°, with 5.4 in138 mm of precipitation and 13 in33 cm of snow in a typical March.
- Record high
- 89°32° (1998)
- Record low
- −2°−19° (1967)
- Heating degree days
- 894
- Cooling degree days
- 0
Brockton in April
Highs average 57°14° and lows 37°3°, with 4.6 in117 mm of precipitation and 1.8 in4.6 cm of snow in a typical April.
- Record high
- 94°34° (1976)
- Record low
- 13°−11° (1982)
- Heating degree days
- 544
- Cooling degree days
- 4
Brockton in May
Highs average 67°20° and lows 47°8°, with 3.8 in97 mm of precipitation in a typical May.
- Record high
- 96°36° (2017)
- Record low
- 29°−2° (1978)
- Heating degree days
- 262
- Cooling degree days
- 23
Brockton in June
Highs average 76°24° and lows 56°14°, with 4.6 in116 mm of precipitation in a typical June.
- Record high
- 99°37° (2025)
- Record low
- 39°4° (1986)
- Heating degree days
- 69
- Cooling degree days
- 102
Brockton in July
Highs average 82°28° and lows 63°17°, with 3.4 in87 mm of precipitation in a typical July.
- Record high
- 100°38° (1977)
- Record low
- 44°7° (1988)
- Heating degree days
- 8
- Cooling degree days
- 231
Brockton in August
Highs average 80°27° and lows 62°17°, with 3.9 in98 mm of precipitation in a typical August.
- Record high
- 101°38° (1975)
- Record low
- 39°4° (1965)
- Heating degree days
- 11
- Cooling degree days
- 197
Brockton in September
Highs average 72°22° and lows 55°13°, with 4.2 in107 mm of precipitation in a typical September.
- Record high
- 97°36° (2015)
- Record low
- 31°−1° (1992)
- Heating degree days
- 106
- Cooling degree days
- 63
Brockton in OctoberThis month
Highs average 61°16° and lows 44°7°, with 5.3 in134 mm of precipitation and 0.8 in2 cm of snow in a typical October.
- Record high
- 88°31° (1963)
- Record low
- 22°−6° (1969)
- Heating degree days
- 398
- Cooling degree days
- 6
Brockton in November
Highs average 50°10° and lows 34°1°, with 4.3 in110 mm of precipitation and 1.7 in4.3 cm of snow in a typical November.
- Record high
- 80°27° (2024)
- Record low
- 9°−13° (2018)
- Heating degree days
- 687
- Cooling degree days
- 0
Brockton in December
Highs average 40°4° and lows 26°−4°, with 5.3 in135 mm of precipitation and 13 in33 cm of snow in a typical December.
- Record high
- 74°23° (1998)
- Record low
- −12°−24° (1980)
- Heating degree days
- 1003
- Cooling degree days
- 0