Augusta weather in December: Augusta, Maine: normal highs, lows, rain and records for December
Augusta in December has a normal high of 35°F and a normal low of 20°F, a daily mean of 27°F, falling from 40°F on the 1st to 31°F by the 31st. Measurable precipitation falls on 12 days in a normal December, 3.44 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 2°C and low of −7°C, 87 mm of precipitation in December.
- NOAA stationAugusta State Airport
- Station IDUSW00014605
- Location44.32°N 69.80°W
- Elevation350 ft (107 m)
- From the center3 miles
- Population19,168
- Jan 29° 12°
- Feb 32° 14°
- Mar 41° 23°
- Apr 54° 34°
- May 66° 45°
- Jun 74° 54°
- Jul 80° 60°
- Aug 79° 59°
- Sep 71° 51°
- Oct 58° 40°
- Nov 46° 30°
- Dec 35° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Augusta in December?
The normal high is 35°F and the normal low 20°F, for a daily mean of 27.2°F. December is 10.8°F cooler than November and 6.8°F warmer than January. December is the 10th warmest month of the year in Augusta and the 6th wettest. Across the month the normal high falls 9°F, from 40°F on December 1 to 31°F on December 31. From one year to the next December's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 24°F and 31°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 | 25°F | 39% | 23% |
| December 8 | 37°F | 22°F | 40% | 23% |
| December 15 | 35°F | 20°F | 39% | 23% |
| December 22 | 33°F | 18°F | 39% | 22% |
| December 31 | 31°F | 15°F | 37% | 21% |
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 | 25°F | 39% | 23% | 9 h 10 min |
| December 2 | 39°F | 25°F | 39% | 23% | 9 h 10 min |
| December 3 | 39°F | 24°F | 40% | 23% | 9 h 10 min |
| December 4 | 38°F | 24°F | 40% | 23% | 9 h |
| December 5 | 38°F | 23°F | 40% | 23% | 9 h |
| December 6 | 38°F | 23°F | 40% | 23% | 9 h |
| December 7 | 37°F | 23°F | 40% | 23% | 9 h |
| December 8 | 37°F | 22°F | 40% | 23% | 9 h |
| December 9 | 37°F | 22°F | 40% | 23% | 9 h |
| December 10 | 36°F | 22°F | 40% | 23% | 9 h |
| December 11 | 36°F | 21°F | 40% | 23% | 9 h |
| December 12 | 36°F | 21°F | 39% | 23% | 8 h 50 min |
| December 13 | 35°F | 21°F | 39% | 23% | 8 h 50 min |
| December 14 | 35°F | 20°F | 39% | 23% | 8 h 50 min |
| December 15 | 35°F | 20°F | 39% | 23% | 8 h 50 min |
| December 16 | 35°F | 20°F | 39% | 23% | 8 h 50 min |
| December 17 | 34°F | 19°F | 39% | 23% | 8 h 50 min |
| December 18 | 34°F | 19°F | 39% | 23% | 8 h 50 min |
| December 19 | 34°F | 19°F | 39% | 23% | 8 h 50 min |
| December 20 | 33°F | 18°F | 39% | 23% | 8 h 50 min |
| December 21 | 33°F | 18°F | 39% | 23% | 8 h 50 min |
| December 22 | 33°F | 18°F | 39% | 22% | 8 h 50 min |
| December 23 | 33°F | 18°F | 39% | 22% | 8 h 50 min |
| December 24 | 32°F | 17°F | 38% | 22% | 8 h 50 min |
| December 25 | 32°F | 17°F | 38% | 22% | 8 h 50 min |
| December 26 | 32°F | 17°F | 38% | 22% | 8 h 50 min |
| December 27 | 32°F | 16°F | 38% | 22% | 8 h 50 min |
| December 28 | 31°F | 16°F | 38% | 22% | 8 h 50 min |
| December 29 | 31°F | 16°F | 37% | 22% | 8 h 50 min |
| December 30 | 31°F | 15°F | 37% | 21% | 8 h 50 min |
| December 31 | 31°F | 15°F | 37% | 21% | 8 h 50 min |
- Normal high
- 35°FDecember average
- Normal low
- 20°FDecember average
- Precipitation
- 3.44 inmonth total
- Days with precipitation
- 120.01 inch or more
- Nights at 32°F or colder
- 28
- Daylight
- 9 h 10 min to 8 h 50 minDecember 1 to December 31
- Sunshine
- 62%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014605; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Augusta in December?
On a given December day the chance of 0.01 inch or more is 39% on average, highest around December 6 (40%). In all, 3.44 in falls on 12 days of a normal December, 1 of them with an inch or more.
In a normal December in Augusta, 28 nights fall to freezing and 13 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014605.
How humid and windy is Augusta in December?
At 3 p.m. the normal temperature is 28°F with 57% relative humidity and a dew point of 15°F; at 6 a.m. it is 21°F with 74% 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. | 21°F | 14°F | 74% | 7.3 mph | 54% |
| 9 a.m. | 22°F | 14°F | 71% | 7.7 mph | – |
| noon | 27°F | 15°F | 60% | 9.4 mph | – |
| 3 p.m. | 28°F | 15°F | 57% | 9.2 mph | – |
| 6 p.m. | 25°F | 14°F | 64% | 8.0 mph | 57% |
| 9 p.m. | 23°F | 14°F | 68% | 7.8 mph | 55% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014605. 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 Augusta?
The warmest December temperature on this station's record (since 1948) is 67°F, on December 6, 2001; the coldest is −15°F, on December 31, 1962. The wettest December brought 12.58 in (1973); the snowiest, 50.8 inches (1970).
The December mean against the 1991-2020 normal of 27.2°F: 2021 30.6°F (+3.4), 2022 32.0°F (+4.8), 2023 32.8°F (+5.6), 2024 28.3°F (+1.1), 2025 22.7°F (−4.5). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 30.6°F | +3.4°F | 2.38 in |
| 2022 | 32.0°F | +4.8°F | 4.37 in |
| 2023 | 32.8°F | +5.6°F | 7.78 in |
| 2024 | 28.3°F | +1.1°F | 5.04 in |
| 2025 | 22.7°F | −4.5°F | 0.00 in |
Source: records: ACIS, station USW00014605; recent months: ACIS, station USW00014605. Records and recent months use complete months only.
How does December in Augusta 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; Augusta's is 35°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.