Augusta weather by month
What a typical year looks like in Augusta, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at AUGUSTA STATE AIRPORT, 5 km from Augusta; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 41.8 in1063 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 26
- First fall freeze
- Oct 15
- Heating degree days
- 7,280
- Cooling degree days
- 427
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 90°32° (cooling, 1%).
Month by month
Augusta in January
Highs average 29°−2° and lows 12°−11°, with 2.6 in67 mm of precipitation in a typical January.
- Record high
- 61°16° (2008)
- Record low
- −22°−30° (1957)
- Heating degree days
- 1381
- Cooling degree days
- 0
Augusta in February
Highs average 32°0° and lows 14°−10°, with 2.3 in59 mm of precipitation in a typical February.
- Record high
- 64°18° (2022)
- Record low
- −23°−31° (1962)
- Heating degree days
- 1172
- Cooling degree days
- 0
Augusta in March
Highs average 41°5° and lows 23°−5°, with 3.2 in82 mm of precipitation in a typical March.
- Record high
- 85°29° (1998)
- Record low
- −11°−24° (1982)
- Heating degree days
- 1023
- Cooling degree days
- 0
Augusta in April
Highs average 54°12° and lows 34°1°, with 3.8 in97 mm of precipitation in a typical April.
- Record high
- 90°32° (1990)
- Record low
- 9°−13° (1954)
- Heating degree days
- 635
- Cooling degree days
- 0
Augusta in May
Highs average 66°19° and lows 45°7°, with 3.3 in83 mm of precipitation in a typical May.
- Record high
- 94°34° (1992)
- Record low
- 26°−3° (1950)
- Heating degree days
- 313
- Cooling degree days
- 10
Augusta in June
Highs average 74°24° and lows 54°12°, with 4 in102 mm of precipitation in a typical June.
- Record high
- 100°38° (2025)
- Record low
- 36°2° (1955)
- Heating degree days
- 90
- Cooling degree days
- 67
Augusta in July
Highs average 80°27° and lows 60°16°, with 3.2 in81 mm of precipitation in a typical July.
- Record high
- 99°37° (1952)
- Record low
- 43°6° (1965)
- Heating degree days
- 13
- Cooling degree days
- 171
Augusta in August
Highs average 79°26° and lows 59°15°, with 3.4 in87 mm of precipitation in a typical August.
- Record high
- 100°38° (1955)
- Record low
- 39°4° (1954)
- Heating degree days
- 20
- Cooling degree days
- 139
Augusta in September
Highs average 71°22° and lows 51°11°, with 3.9 in99 mm of precipitation in a typical September.
- Record high
- 96°36° (2002)
- Record low
- 28°−2° (1965)
- Heating degree days
- 160
- Cooling degree days
- 38
Augusta in OctoberThis month
Highs average 58°14° and lows 40°5°, with 4.7 in119 mm of precipitation in a typical October.
- Record high
- 86°30° (2025)
- Record low
- 21°−6° (1957)
- Heating degree days
- 493
- Cooling degree days
- 2
Augusta in November
Highs average 46°8° and lows 30°−1°, with 4 in100 mm of precipitation in a typical November.
- Record high
- 77°25° (2024)
- Record low
- 4°−16° (1951)
- Heating degree days
- 810
- Cooling degree days
- 0
Augusta in December
Highs average 35°2° and lows 20°−7°, with 3.4 in87 mm of precipitation in a typical December.
- Record high
- 67°19° (2001)
- Record low
- −15°−26° (1962)
- Heating degree days
- 1170
- Cooling degree days
- 0