Caribou weather by month
What a typical year looks like in Caribou, Maine: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Caribou WFO, 7 km from Caribou; records cover 1939–2026.
The year at a glance
- Precipitation a year
- 40.7 in1034 mm
- Snow a year
- 118 in300 cm
- Last spring freeze
- May 14
- First fall freeze
- Sep 25
- Heating degree days
- 9,048
- Cooling degree days
- 224
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 88°31° (cooling, 1%).
Month by month
Caribou in January
Highs average 21°−6° and lows 3°−16°, with 3 in75 mm of precipitation and 25 in64 cm of snow in a typical January.
- Record high
- 53°12° (1995)
- Record low
- −37°−38° (2009)
- Heating degree days
- 1652
- Cooling degree days
- 0
Caribou in February
Highs average 24°−4° and lows 4°−15°, with 2.4 in61 mm of precipitation and 25 in64 cm of snow in a typical February.
- Record high
- 59°15° (1994)
- Record low
- −41° (1955)
- Heating degree days
- 1421
- Cooling degree days
- 0
Caribou in March
Highs average 34°1° and lows 16°−9°, with 2.8 in70 mm of precipitation and 21 in54 cm of snow in a typical March.
- Record high
- 75°24° (2012)
- Record low
- −28°−33° (2001)
- Heating degree days
- 1242
- Cooling degree days
- 0
Caribou in April
Highs average 48°9° and lows 29°−1°, with 3 in76 mm of precipitation and 8 in21 cm of snow in a typical April.
- Record high
- 86°30° (1990)
- Record low
- −4°−20° (2015)
- Heating degree days
- 794
- Cooling degree days
- 0
Caribou in May
Highs average 63°17° and lows 41°5°, with 3.5 in88 mm of precipitation and 0.8 in2 cm of snow in a typical May.
- Record high
- 96°36° (1977)
- Record low
- 18°−8° (1974)
- Heating degree days
- 403
- Cooling degree days
- 6
Caribou in June
Highs average 72°22° and lows 51°10°, with 3.9 in99 mm of precipitation in a typical June.
- Record high
- 96°36° (1944)
- Record low
- 30°−1° (1958)
- Heating degree days
- 148
- Cooling degree days
- 38
Caribou in July
Highs average 77°25° and lows 56°13°, with 4.2 in107 mm of precipitation in a typical July.
- Record high
- 95°35° (1952)
- Record low
- 36°2° (1969)
- Heating degree days
- 42
- Cooling degree days
- 95
Caribou in August
Highs average 76°24° and lows 54°12°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 95°35° (1944)
- Record low
- 34°1° (1942)
- Heating degree days
- 71
- Cooling degree days
- 68
Caribou in September
Highs average 67°20° and lows 46°8°, with 3.4 in87 mm of precipitation and 0.1 in0.3 cm of snow in a typical September.
- Record high
- 92°33° (2010)
- Record low
- 23°−5° (1950)
- Heating degree days
- 269
- Cooling degree days
- 17
Caribou in OctoberThis month
Highs average 53°12° and lows 36°2°, with 4 in101 mm of precipitation and 1.7 in4.3 cm of snow in a typical October.
- Record high
- 83°28° (2025)
- Record low
- 14°−10° (1940)
- Heating degree days
- 634
- Cooling degree days
- 0
Caribou in November
Highs average 40°4° and lows 26°−4°, with 3.4 in85 mm of precipitation and 10 in26 cm of snow in a typical November.
- Record high
- 75°24° (2020)
- Record low
- −8°−22° (1995)
- Heating degree days
- 974
- Cooling degree days
- 0
Caribou in December
Highs average 28°−2° and lows 12°−11°, with 3.6 in91 mm of precipitation and 25 in64 cm of snow in a typical December.
- Record high
- 60°16° (2020)
- Record low
- −31°−35° (1989)
- Heating degree days
- 1398
- Cooling degree days
- 0