Caribou weather in December: Caribou, Maine: normal highs, lows, rain and records for December
Caribou in December has a normal high of 28°F and a normal low of 12°F, a daily mean of 20°F, falling from 33°F on the 1st to 23°F by the 31st. Measurable precipitation falls on 15 days in a normal December, 3.60 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of −2°C and low of −11°C, 91 mm of precipitation and 64 cm of snow in December.
- NOAA stationCaribou Weather Office
- Station IDUSW00014607
- Location46.87°N 68.02°W
- Elevation624 ft (190 m)
- Population7,328
- Jan 21° 3°
- Feb 24° 4°
- Mar 34° 16°
- Apr 48° 29°
- May 63° 41°
- Jun 72° 51°
- Jul 77° 56°
- Aug 76° 54°
- Sep 67° 46°
- Oct 53° 36°
- Nov 40° 26°
- Dec 28° 12°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Caribou in December?
The normal high is 28°F and the normal low 12°F, for a daily mean of 19.9°F. December is 12.7°F cooler than November and 8.2°F warmer than January. December is the 10th warmest month of the year in Caribou and the 5th wettest. Across the month the normal high falls 10°F, from 33°F on December 1 to 23°F on December 31. From one year to the next December's mean temperature typically moves about 4.4°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 15°F and 24°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 48%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 33°F | 19°F | 48% | 25% |
| December 8 | 30°F | 16°F | 48% | 25% |
| December 15 | 28°F | 13°F | 47% | 25% |
| December 22 | 26°F | 10°F | 47% | 24% |
| December 31 | 23°F | 6°F | 47% | 23% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 33°F | 19°F | 48% | 25% | 8 h 50 min |
| December 2 | 32°F | 18°F | 48% | 25% | 8 h 50 min |
| December 3 | 32°F | 18°F | 48% | 25% | 8 h 50 min |
| December 4 | 32°F | 17°F | 48% | 25% | 8 h 50 min |
| December 5 | 31°F | 17°F | 48% | 25% | 8 h 40 min |
| December 6 | 31°F | 17°F | 48% | 25% | 8 h 40 min |
| December 7 | 30°F | 16°F | 48% | 25% | 8 h 40 min |
| December 8 | 30°F | 16°F | 48% | 25% | 8 h 40 min |
| December 9 | 30°F | 15°F | 48% | 25% | 8 h 40 min |
| December 10 | 29°F | 15°F | 48% | 25% | 8 h 40 min |
| December 11 | 29°F | 14°F | 48% | 25% | 8 h 40 min |
| December 12 | 29°F | 14°F | 47% | 25% | 8 h 40 min |
| December 13 | 28°F | 13°F | 47% | 25% | 8 h 40 min |
| December 14 | 28°F | 13°F | 47% | 25% | 8 h 30 min |
| December 15 | 28°F | 13°F | 47% | 25% | 8 h 30 min |
| December 16 | 27°F | 12°F | 47% | 25% | 8 h 30 min |
| December 17 | 27°F | 12°F | 47% | 25% | 8 h 30 min |
| December 18 | 27°F | 11°F | 47% | 25% | 8 h 30 min |
| December 19 | 26°F | 11°F | 47% | 25% | 8 h 30 min |
| December 20 | 26°F | 11°F | 47% | 25% | 8 h 30 min |
| December 21 | 26°F | 10°F | 47% | 24% | 8 h 30 min |
| December 22 | 26°F | 10°F | 47% | 24% | 8 h 30 min |
| December 23 | 25°F | 9°F | 47% | 24% | 8 h 30 min |
| December 24 | 25°F | 9°F | 47% | 24% | 8 h 30 min |
| December 25 | 25°F | 9°F | 47% | 24% | 8 h 30 min |
| December 26 | 24°F | 8°F | 47% | 24% | 8 h 30 min |
| December 27 | 24°F | 8°F | 47% | 24% | 8 h 30 min |
| December 28 | 24°F | 8°F | 47% | 24% | 8 h 30 min |
| December 29 | 24°F | 7°F | 47% | 24% | 8 h 30 min |
| December 30 | 23°F | 7°F | 47% | 24% | 8 h 30 min |
| December 31 | 23°F | 6°F | 47% | 23% | 8 h 30 min |
- Normal high
- 28°FDecember average
- Normal low
- 12°FDecember average
- Precipitation
- 3.60 inmonth total
- Days with precipitation
- 150.01 inch or more
- Snowfall
- 25.2 inmonth total
- Nights at 32°F or colder
- 30
- Daylight
- 8 h 50 min to 8 h 30 minDecember 1 to December 31
- Sunshine
- 56%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014607; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Caribou in December?
On a given December day the chance of 0.01 inch or more is 47% on average, highest around December 3 (48%). In all, 3.60 in falls on 15 days of a normal December.
In a normal December in Caribou, 30 nights fall to freezing, 21 days stay below freezing all day and snowfall averages 25.2 inches.
Snow falls on 13 days in a normal December, and an inch or more covers the ground on 25 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014607.
How humid and windy is Caribou in December?
At 3 p.m. the normal temperature is 19°F with 68% relative humidity and a dew point of 10°F; at 6 a.m. it is 13°F with 80% humidity. The wind averages 8.0 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 13°F | 8°F | 80% | 7.3 mph | 46% |
| 9 a.m. | 14°F | 8°F | 78% | 7.9 mph | – |
| noon | 18°F | 10°F | 70% | 9.8 mph | – |
| 3 p.m. | 19°F | 10°F | 68% | 9.4 mph | 42% |
| 6 p.m. | 17°F | 10°F | 74% | 8.0 mph | 49% |
| 9 p.m. | 15°F | 9°F | 76% | 7.7 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014607. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Caribou?
The warmest December temperature on Caribou's official record (since 1939) is 60°F, on December 1, 2020; the coldest is −31°F, on December 30, 1989. The wettest December brought 7.97 in (1973); the snowiest, 59.9 inches (1972).
The December mean against the 1991-2020 normal of 19.9°F: 2021 21.4°F (+1.5), 2022 26.3°F (+6.4), 2023 27.3°F (+7.4), 2024 21.8°F (+1.9), 2025 14.3°F (−5.6). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 21.4°F | +1.5°F | 3.37 in |
| 2022 | 26.3°F | +6.4°F | 4.53 in |
| 2023 | 27.3°F | +7.4°F | 3.47 in |
| 2024 | 21.8°F | +1.9°F | 3.81 in |
| 2025 | 14.3°F | −5.6°F | 2.88 in |
Source: records: ACIS, NWS threaded record CARthr; recent months: ACIS, station USW00014607. Records and recent months use complete months only.
How does December in Caribou compare across Maine?
Across the 42 places PlainClimate covers in Maine, December normal highs run from 26°F in Fort Kent to 39°F in Kennebunkport; Caribou's is 28°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.