Bangor weather in December: Bangor, Maine: normal highs, lows, rain and records for December
Bangor in December has a normal high of 35°F and a normal low of 17°F, a daily mean of 26°F, falling from 40°F on the 1st to 30°F by the 31st. Measurable precipitation falls on 13 days in a normal December, 3.72 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 1°C and low of −8°C, 94 mm of precipitation and 37 cm of snow in December.
- NOAA stationBangor International Airport
- Station IDUSW00014606
- Location44.80°N 68.82°W
- Elevation148 ft (45 m)
- Population32,446
- Jan 28° 9°
- Feb 31° 11°
- Mar 40° 21°
- Apr 53° 32°
- May 66° 43°
- Jun 75° 53°
- Jul 80° 59°
- Aug 79° 57°
- Sep 71° 49°
- Oct 58° 38°
- Nov 46° 29°
- Dec 35° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bangor in December?
The normal high is 35°F and the normal low 17°F, for a daily mean of 25.9°F. December is 11.4°F cooler than November and 7.4°F warmer than January. December is the 10th warmest month of the year in Bangor and the 5th wettest. Across the month the normal high falls 10°F, from 40°F on December 1 to 30°F on December 31. From one year to the next December's mean temperature typically moves about 3.9°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 22°F and 30°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 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 40°F | 23°F | 39% | 24% |
| December 8 | 37°F | 20°F | 40% | 24% |
| December 15 | 35°F | 18°F | 40% | 24% |
| December 22 | 33°F | 15°F | 40% | 24% |
| December 31 | 30°F | 12°F | 40% | 24% |
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 | 40°F | 23°F | 39% | 24% | 9 h |
| December 2 | 39°F | 23°F | 39% | 24% | 9 h |
| December 3 | 39°F | 22°F | 39% | 24% | 9 h |
| December 4 | 38°F | 22°F | 39% | 24% | 9 h |
| December 5 | 38°F | 21°F | 40% | 24% | 9 h |
| December 6 | 38°F | 21°F | 40% | 24% | 9 h |
| December 7 | 37°F | 21°F | 40% | 24% | 9 h |
| December 8 | 37°F | 20°F | 40% | 24% | 9 h |
| December 9 | 37°F | 20°F | 40% | 24% | 8 h 50 min |
| December 10 | 36°F | 19°F | 40% | 24% | 8 h 50 min |
| December 11 | 36°F | 19°F | 40% | 24% | 8 h 50 min |
| December 12 | 36°F | 19°F | 40% | 24% | 8 h 50 min |
| December 13 | 35°F | 18°F | 40% | 24% | 8 h 50 min |
| December 14 | 35°F | 18°F | 40% | 24% | 8 h 50 min |
| December 15 | 35°F | 18°F | 40% | 24% | 8 h 50 min |
| December 16 | 34°F | 17°F | 40% | 24% | 8 h 50 min |
| December 17 | 34°F | 17°F | 40% | 24% | 8 h 50 min |
| December 18 | 34°F | 16°F | 40% | 24% | 8 h 50 min |
| December 19 | 33°F | 16°F | 40% | 24% | 8 h 50 min |
| December 20 | 33°F | 16°F | 40% | 24% | 8 h 50 min |
| December 21 | 33°F | 15°F | 40% | 24% | 8 h 50 min |
| December 22 | 33°F | 15°F | 40% | 24% | 8 h 50 min |
| December 23 | 32°F | 15°F | 40% | 24% | 8 h 50 min |
| December 24 | 32°F | 14°F | 40% | 24% | 8 h 50 min |
| December 25 | 32°F | 14°F | 40% | 24% | 8 h 50 min |
| December 26 | 31°F | 14°F | 40% | 24% | 8 h 50 min |
| December 27 | 31°F | 13°F | 40% | 24% | 8 h 50 min |
| December 28 | 31°F | 13°F | 40% | 24% | 8 h 50 min |
| December 29 | 31°F | 13°F | 40% | 24% | 8 h 50 min |
| December 30 | 30°F | 12°F | 40% | 24% | 8 h 50 min |
| December 31 | 30°F | 12°F | 40% | 24% | 8 h 50 min |
- Normal high
- 35°FDecember average
- Normal low
- 17°FDecember average
- Precipitation
- 3.72 inmonth total
- Days with precipitation
- 130.01 inch or more
- Snowfall
- 14.7 inmonth total
- Nights at 32°F or colder
- 29
- Daylight
- 9 h to 8 h 50 minDecember 1 to December 31
- Sunshine
- 61%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014606; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Bangor in December?
On a given December day the chance of 0.01 inch or more is 40% on average, highest around December 17 (40%). In all, 3.72 in falls on 13 days of a normal December, 1 of them with an inch or more.
In a normal December in Bangor, 29 nights fall to freezing, 13 days stay below freezing all day and snowfall averages 14.7 inches.
Snow falls on 6 days in a normal December, and an inch or more covers the ground on 16 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014606.
What are the records for December in Bangor?
The warmest December temperature on Bangor's official record (since 1925) is 65°F, on December 4, 1982; the coldest is −27°F, on December 16, 1943. The wettest December brought 10.14 in (1969); the snowiest, 47.5 inches (1962).
The December mean against the 1991-2020 normal of 25.9°F: 2021 27.3°F (+1.4), 2022 30.9°F (+5.0), 2023 31.2°F (+5.3), 2024 26.0°F (+0.1), 2025 19.6°F (−6.3). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 27.3°F | +1.4°F | 2.53 in |
| 2022 | 30.9°F | +5.0°F | 4.09 in |
| 2023 | 31.2°F | +5.3°F | 7.00 in |
| 2024 | 26.0°F | +0.1°F | 5.29 in |
| 2025 | 19.6°F | −6.3°F | 3.61 in |
Source: records: ACIS, NWS threaded record BGRthr; recent months: ACIS, station USW00014606. Records and recent months use complete months only.
How does December in Bangor 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; Bangor's is 35°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.