Kennebunk weather by month
What a typical year looks like in Kennebunk, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at SANFORD 2 NNW, 21 km from Kennebunk; records cover 1953–2026.
The year at a glance
- Precipitation a year
- 51.3 in1303 mm
- Snow a year
- Rare
- Last spring freeze
- May 6
- First fall freeze
- Oct 6
- Heating degree days
- 7,429
- Cooling degree days
- 351
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 92°33° (cooling, 1%).
Month by month
Kennebunk in January
Highs average 32°0° and lows 10°−12°, with 3.7 in93 mm of precipitation in a typical January.
- Record high
- 68°20° (2007)
- Record low
- −28°−33° (1957)
- Heating degree days
- 1370
- Cooling degree days
- 0
Kennebunk in February
Highs average 35°2° and lows 11°−11°, with 3.6 in92 mm of precipitation in a typical February.
- Record high
- 74°23° (2018)
- Record low
- −25°−32° (1967)
- Heating degree days
- 1168
- Cooling degree days
- 0
Kennebunk in March
Highs average 44°6° and lows 20°−7°, with 4.7 in119 mm of precipitation in a typical March.
- Record high
- 88°31° (1998)
- Record low
- −13°−25° (1967)
- Heating degree days
- 1032
- Cooling degree days
- 0
Kennebunk in April
Highs average 57°14° and lows 30°−1°, with 4.6 in117 mm of precipitation in a typical April.
- Record high
- 92°33° (1962)
- Record low
- 3°−16° (1954)
- Heating degree days
- 643
- Cooling degree days
- 1
Kennebunk in May
Highs average 68°20° and lows 41°5°, with 3.8 in97 mm of precipitation in a typical May.
- Record high
- 97°36° (1962)
- Record low
- 21°−6° (1985)
- Heating degree days
- 342
- Cooling degree days
- 11
Kennebunk in June
Highs average 76°25° and lows 51°10°, with 4.6 in116 mm of precipitation in a typical June.
- Record high
- 99°37° (2025)
- Record low
- 31°−1° (1986)
- Heating degree days
- 110
- Cooling degree days
- 60
Kennebunk in July
Highs average 81°27° and lows 56°13°, with 4 in101 mm of precipitation in a typical July.
- Record high
- 98°37° (1963)
- Record low
- 38°3° (1961)
- Heating degree days
- 22
- Cooling degree days
- 137
Kennebunk in August
Highs average 80°27° and lows 55°13°, with 3.9 in100 mm of precipitation in a typical August.
- Record high
- 101°38° (1975)
- Record low
- 31°−1° (1965)
- Heating degree days
- 33
- Cooling degree days
- 108
Kennebunk in September
Highs average 73°23° and lows 47°8°, with 3.8 in97 mm of precipitation in a typical September.
- Record high
- 95°35° (1953)
- Record low
- 22°−6° (2018)
- Heating degree days
- 186
- Cooling degree days
- 33
Kennebunk in OctoberThis month
Highs average 61°16° and lows 36°2°, with 5.4 in136 mm of precipitation in a typical October.
- Record high
- 89°32° (1963)
- Record low
- 12°−11° (1966)
- Heating degree days
- 527
- Cooling degree days
- 1
Kennebunk in November
Highs average 48°9° and lows 27°−3°, with 4.5 in113 mm of precipitation in a typical November.
- Record high
- 77°25° (2022)
- Record low
- −1°−18° (1989)
- Heating degree days
- 826
- Cooling degree days
- 0
Kennebunk in December
Highs average 37°3° and lows 17°−8°, with 4.8 in122 mm of precipitation in a typical December.
- Record high
- 73°23° (1998)
- Record low
- −20°−29° (1963)
- Heating degree days
- 1170
- Cooling degree days
- 0