Decatur weather in December: Decatur, Alabama: normal highs, lows, rain and records for December
Decatur in December has a normal high of 54°F and a normal low of 35°F, a daily mean of 44°F, falling from 57°F on the 1st to 51°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 5.20 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 12°C and low of 1°C, 132 mm of precipitation in December.
- NOAA stationDecatur Pryor Field
- Station IDUSW00053852
- Location34.65°N 86.95°W
- Elevation592 ft (180 m)
- Population57,974
- Jan 51° 32°
- Feb 55° 35°
- Mar 64° 42°
- Apr 73° 50°
- May 81° 59°
- Jun 88° 67°
- Jul 90° 70°
- Aug 90° 68°
- Sep 85° 61°
- Oct 75° 50°
- Nov 62° 39°
- Dec 54° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Decatur in December?
The normal high is 54°F and the normal low 35°F, for a daily mean of 44.1°F. December is 6.7°F cooler than November and 2.7°F warmer than January. December is the 11th warmest month of the year in Decatur and the wettest. Across the month the normal high falls 6°F, from 57°F on December 1 to 51°F on December 31. From one year to the next December's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 40°F and 48°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 57°F | 36°F | 34% | 22% |
| December 8 | 55°F | 36°F | 35% | 22% |
| December 15 | 54°F | 35°F | 35% | 23% |
| December 22 | 52°F | 34°F | 35% | 23% |
| December 31 | 51°F | 33°F | 34% | 22% |
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 | 57°F | 36°F | 34% | 22% | 10 h |
| December 2 | 57°F | 36°F | 34% | 22% | 10 h |
| December 3 | 57°F | 36°F | 34% | 22% | 10 h |
| December 4 | 56°F | 36°F | 35% | 22% | 10 h |
| December 5 | 56°F | 36°F | 35% | 22% | 10 h |
| December 6 | 56°F | 36°F | 35% | 22% | 10 h |
| December 7 | 56°F | 36°F | 35% | 22% | 10 h |
| December 8 | 55°F | 36°F | 35% | 22% | 10 h |
| December 9 | 55°F | 35°F | 35% | 23% | 9 h 50 min |
| December 10 | 55°F | 35°F | 35% | 23% | 9 h 50 min |
| December 11 | 55°F | 35°F | 35% | 23% | 9 h 50 min |
| December 12 | 54°F | 35°F | 35% | 23% | 9 h 50 min |
| December 13 | 54°F | 35°F | 35% | 23% | 9 h 50 min |
| December 14 | 54°F | 35°F | 35% | 23% | 9 h 50 min |
| December 15 | 54°F | 35°F | 35% | 23% | 9 h 50 min |
| December 16 | 53°F | 35°F | 35% | 23% | 9 h 50 min |
| December 17 | 53°F | 35°F | 35% | 23% | 9 h 50 min |
| December 18 | 53°F | 34°F | 35% | 23% | 9 h 50 min |
| December 19 | 53°F | 34°F | 35% | 23% | 9 h 50 min |
| December 20 | 53°F | 34°F | 35% | 23% | 9 h 50 min |
| December 21 | 52°F | 34°F | 35% | 23% | 9 h 50 min |
| December 22 | 52°F | 34°F | 35% | 23% | 9 h 50 min |
| December 23 | 52°F | 34°F | 35% | 23% | 9 h 50 min |
| December 24 | 52°F | 34°F | 35% | 23% | 9 h 50 min |
| December 25 | 52°F | 34°F | 35% | 23% | 9 h 50 min |
| December 26 | 52°F | 33°F | 35% | 22% | 9 h 50 min |
| December 27 | 51°F | 33°F | 35% | 22% | 9 h 50 min |
| December 28 | 51°F | 33°F | 35% | 22% | 9 h 50 min |
| December 29 | 51°F | 33°F | 34% | 22% | 9 h 50 min |
| December 30 | 51°F | 33°F | 34% | 22% | 9 h 50 min |
| December 31 | 51°F | 33°F | 34% | 22% | 9 h 50 min |
- Normal high
- 54°FDecember average
- Normal low
- 35°FDecember average
- Precipitation
- 5.20 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 16
- Daylight
- 10 h to 9 h 50 minDecember 1 to December 31
- Days at 70°F or more
- 2
- Sunshine
- 67%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053852; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Decatur in December?
On a given December day the chance of 0.01 inch or more is 35% on average, highest around December 13 (35%). In all, 5.20 in falls on 11 days of a normal December, 2 of them with an inch or more.
In a normal December in Decatur, 16 nights fall to freezing and 1 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053852.
What are the records for December in Decatur?
The December mean against the 1991-2020 normal of 44.1°F: 2021 52.7°F (+8.6), 2022 44.5°F (+0.4), 2023 46.5°F (+2.4), 2024 45.4°F (+1.3), 2025 44.9°F (+0.8). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.7°F | +8.6°F | 5.20 in |
| 2022 | 44.5°F | +0.4°F | 5.48 in |
| 2023 | 46.5°F | +2.4°F | 5.18 in |
| 2024 | 45.4°F | +1.3°F | 3.75 in |
| 2025 | 44.9°F | +0.8°F | 2.03 in |
Source: recent months: ACIS, station USW00053852. Records and recent months use complete months only.
How does December in Decatur compare across Alabama?
Across the 80 places PlainClimate covers in Alabama, December normal highs run from 51°F in Bridgeport to 65°F in Eufaula; Decatur's is 54°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.