Rockport weather by month
What a typical year looks like in Rockport, Massachusetts: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at BEVERLY, 19 km from Rockport; records cover 1996–2026.
The year at a glance
- Precipitation a year
- 48 in1220 mm
- Snow a year
- 51 in131 cm
- Last spring freeze
- Apr 29
- First fall freeze
- Oct 18
- Heating degree days
- 6,474
- Cooling degree days
- 433
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 90°32° (cooling, 1%).
Month by month
Rockport in January
Highs average 37°3° and lows 18°−8°, with 3.7 in95 mm of precipitation and 16 in41 cm of snow in a typical January.
- Record high
- 72°22° (2020)
- Record low
- −10°−23° (2005)
- Heating degree days
- 1172
- Cooling degree days
- 0
Rockport in February
Highs average 39°4° and lows 18°−8°, with 3.6 in92 mm of precipitation and 16 in42 cm of snow in a typical February.
- Record high
- 73°23° (2018)
- Record low
- −13°−25° (2023)
- Heating degree days
- 1028
- Cooling degree days
- 0
Rockport in March
Highs average 45°7° and lows 25°−4°, with 4.6 in118 mm of precipitation and 8 in19 cm of snow in a typical March.
- Record high
- 89°32° (1998)
- Record low
- −2°−19° (2003)
- Heating degree days
- 921
- Cooling degree days
- 0
Rockport in April
Highs average 57°14° and lows 34°1°, with 4.2 in107 mm of precipitation and 1.4 in3.6 cm of snow in a typical April.
- Record high
- 93°34° (2002)
- Record low
- 16°−9° (2018)
- Heating degree days
- 600
- Cooling degree days
- 2
Rockport in May
Highs average 66°19° and lows 44°7°, with 3.5 in88 mm of precipitation in a typical May.
- Record high
- 95°35° (2026)
- Record low
- 28°−2° (2001)
- Heating degree days
- 322
- Cooling degree days
- 11
Rockport in June
Highs average 75°24° and lows 54°12°, with 4 in101 mm of precipitation in a typical June.
- Record high
- 97°36° (2025)
- Record low
- 38°3° (1997)
- Heating degree days
- 94
- Cooling degree days
- 71
Rockport in July
Highs average 80°27° and lows 60°16°, with 3.4 in87 mm of precipitation in a typical July.
- Record high
- 98°37° (2002)
- Record low
- 43°6° (2016)
- Heating degree days
- 15
- Cooling degree days
- 170
Rockport in August
Highs average 79°26° and lows 58°15°, with 3.4 in85 mm of precipitation in a typical August.
- Record high
- 97°36° (2022)
- Record low
- 44°7° (2007)
- Heating degree days
- 22
- Cooling degree days
- 135
Rockport in September
Highs average 72°22° and lows 51°11°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 96°36° (2007)
- Record low
- 33°1° (2000)
- Heating degree days
- 145
- Cooling degree days
- 41
Rockport in OctoberThis month
Highs average 61°16° and lows 40°5°, with 5 in127 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 85°29° (2025)
- Record low
- 19°−7° (2020)
- Heating degree days
- 450
- Cooling degree days
- 3
Rockport in November
Highs average 51°11° and lows 31°0°, with 4 in101 mm of precipitation and 0.9 in2.3 cm of snow in a typical November.
- Record high
- 81°27° (2024)
- Record low
- 11°−12° (2018)
- Heating degree days
- 710
- Cooling degree days
- 0
Rockport in December
Highs average 42°6° and lows 24°−5°, with 4.8 in122 mm of precipitation and 9 in22 cm of snow in a typical December.
- Record high
- 76°24° (1998)
- Record low
- −3°−19° (2017)
- Heating degree days
- 995
- Cooling degree days
- 0