Hartland weather by month
What a typical year looks like in Hartland, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Corinna, 18 km from Hartland; records cover 1947–2026.
The year at a glance
- Precipitation a year
- 44.7 in1135 mm
- Snow a year
- 72 in182 cm
- Last spring freeze
- May 14
- First fall freeze
- Sep 28
- Heating degree days
- 7,827
- Cooling degree days
- 374
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −17°−27° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Hartland in January
Highs average 28°−2° and lows 6°−14°, with 3.4 in85 mm of precipitation and 17 in42 cm of snow in a typical January.
- Record high
- 62°17° (2013)
- Record low
- −38°−39° (1981)
- Heating degree days
- 1485
- Cooling degree days
- 0
Hartland in February
Highs average 32°0° and lows 7°−14°, with 2.8 in72 mm of precipitation and 17 in44 cm of snow in a typical February.
- Record high
- 63°17° (2022)
- Record low
- −39° (1962)
- Heating degree days
- 1278
- Cooling degree days
- 0
Hartland in March
Highs average 41°5° and lows 18°−8°, with 3.4 in87 mm of precipitation and 13 in34 cm of snow in a typical March.
- Record high
- 86°30° (2012)
- Record low
- −28°−33° (1982)
- Heating degree days
- 1097
- Cooling degree days
- 0
Hartland in April
Highs average 54°12° and lows 31°0°, with 3.8 in97 mm of precipitation and 3 in9 cm of snow in a typical April.
- Record high
- 92°33° (1990)
- Record low
- −3°−19° (1954)
- Heating degree days
- 672
- Cooling degree days
- 0
Hartland in May
Highs average 67°19° and lows 43°6°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 97°36° (1977)
- Record low
- 21°−6° (1950)
- Heating degree days
- 330
- Cooling degree days
- 10
Hartland in June
Highs average 75°24° and lows 52°11°, with 4 in102 mm of precipitation in a typical June.
- Record high
- 96°36° (1962)
- Record low
- 29°−2° (1958)
- Heating degree days
- 99
- Cooling degree days
- 62
Hartland in July
Highs average 81°27° and lows 58°14°, with 3.2 in82 mm of precipitation in a typical July.
- Record high
- 97°36° (1952)
- Record low
- 35°2° (1962)
- Heating degree days
- 20
- Cooling degree days
- 151
Hartland in August
Highs average 80°26° and lows 56°13°, with 3.6 in91 mm of precipitation in a typical August.
- Record high
- 97°36° (1952)
- Record low
- 31°−1° (1965)
- Heating degree days
- 33
- Cooling degree days
- 116
Hartland in September
Highs average 72°22° and lows 48°9°, with 3.6 in90 mm of precipitation in a typical September.
- Record high
- 95°35° (2010)
- Record low
- 20°−7° (1947)
- Heating degree days
- 190
- Cooling degree days
- 34
Hartland in OctoberThis month
Highs average 59°15° and lows 37°3°, with 4.8 in121 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 86°30° (2025)
- Record low
- 15°−9° (1957)
- Heating degree days
- 533
- Cooling degree days
- 1
Hartland in November
Highs average 46°8° and lows 27°−3°, with 4.1 in104 mm of precipitation and 4 in10 cm of snow in a typical November.
- Record high
- 76°24° (2024)
- Record low
- −6°−21° (1989)
- Heating degree days
- 850
- Cooling degree days
- 0
Hartland in December
Highs average 34°1° and lows 16°−9°, with 4.3 in110 mm of precipitation and 17 in42 cm of snow in a typical December.
- Record high
- 63°17° (1982)
- Record low
- −31°−35° (1989)
- Heating degree days
- 1240
- Cooling degree days
- 0