Decatur weather in January: Decatur, Alabama: normal highs, lows, rain and records for January
Decatur in January has a normal high of 51°F and a normal low of 32°F, a daily mean of 41°F, holding near 51°F all month. Measurable precipitation falls on 9 days in a normal January, 4.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 10°C and low of 0°C, 118 mm of precipitation in January.
- 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 January?
The normal high is 51°F and the normal low 32°F, for a daily mean of 41.4°F. January is 2.7°F cooler than December and 3.9°F cooler than February. January is the 12th warmest month of the year in Decatur and the 4th wettest. Across the month the normal high rises 1°F, from 51°F on January 1 to 52°F on January 31. From one year to the next January's mean temperature typically moves about 4.2°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 37°F and 46°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 |
|---|---|---|---|---|
| January 1 | 51°F | 33°F | 34% | 22% |
| January 8 | 50°F | 32°F | 32% | 22% |
| January 15 | 50°F | 32°F | 32% | 22% |
| January 22 | 51°F | 32°F | 33% | 21% |
| January 31 | 52°F | 33°F | 35% | 22% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 16)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 51°F | 33°F | 34% | 22% | 9 h 50 min |
| January 2 | 51°F | 33°F | 34% | 22% | 9 h 50 min |
| January 3 | 51°F | 33°F | 33% | 22% | 9 h 50 min |
| January 4 | 51°F | 32°F | 33% | 22% | 9 h 50 min |
| January 5 | 50°F | 32°F | 33% | 22% | 9 h 50 min |
| January 6 | 50°F | 32°F | 33% | 22% | 10 h |
| January 7 | 50°F | 32°F | 33% | 22% | 10 h |
| January 8 | 50°F | 32°F | 32% | 22% | 10 h |
| January 9 | 50°F | 32°F | 32% | 22% | 10 h |
| January 10 | 50°F | 32°F | 32% | 22% | 10 h |
| January 11 | 50°F | 32°F | 32% | 22% | 10 h |
| January 12 | 50°F | 32°F | 32% | 22% | 10 h |
| January 13 | 50°F | 32°F | 32% | 22% | 10 h |
| January 14 | 50°F | 32°F | 32% | 22% | 10 h |
| January 15 | 50°F | 32°F | 32% | 22% | 10 h |
| January 16 | 50°F | 32°F | 32% | 22% | 10 h 10 min |
| January 17 | 50°F | 32°F | 32% | 22% | 10 h 10 min |
| January 18 | 50°F | 32°F | 32% | 22% | 10 h 10 min |
| January 19 | 51°F | 32°F | 32% | 22% | 10 h 10 min |
| January 20 | 51°F | 32°F | 32% | 21% | 10 h 10 min |
| January 21 | 51°F | 32°F | 32% | 21% | 10 h 10 min |
| January 22 | 51°F | 32°F | 33% | 21% | 10 h 10 min |
| January 23 | 51°F | 32°F | 33% | 21% | 10 h 10 min |
| January 24 | 51°F | 32°F | 33% | 21% | 10 h 20 min |
| January 25 | 51°F | 32°F | 33% | 21% | 10 h 20 min |
| January 26 | 51°F | 32°F | 33% | 21% | 10 h 20 min |
| January 27 | 51°F | 32°F | 33% | 21% | 10 h 20 min |
| January 28 | 52°F | 32°F | 34% | 21% | 10 h 20 min |
| January 29 | 52°F | 32°F | 34% | 21% | 10 h 20 min |
| January 30 | 52°F | 32°F | 35% | 22% | 10 h 30 min |
| January 31 | 52°F | 33°F | 35% | 22% | 10 h 30 min |
- Normal high
- 51°FJanuary average
- Normal low
- 32°FJanuary average
- Precipitation
- 4.64 inmonth total
- Days with precipitation
- 90.01 inch or more
- Nights at 32°F or colder
- 17
- Daylight
- 9 h 50 min to 10 h 30 minJanuary 1 to January 31
- Days at 70°F or more
- 1
- Sunshine
- 69%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 January?
On a given January day the chance of 0.01 inch or more is 33% on average, highest around January 31 (35%). In all, 4.64 in falls on 9 days of a normal January, 2 of them with an inch or more.
In a normal January in Decatur, 17 nights fall to freezing and 2 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053852.
What are the records for January in Decatur?
The January mean against the 1991-2020 normal of 41.4°F: 2021 42.1°F (+0.7), 2022 38.4°F (−3.0), 2023 50.0°F (+8.6), 2024 38.7°F (−2.7), 2025 36.6°F (−4.8), 2026 40.1°F (−1.3). 2 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 42.1°F | +0.7°F | 1.83 in |
| 2022 | 38.4°F | −3.0°F | 6.58 in |
| 2023 | 50.0°F | +8.6°F | 4.76 in |
| 2024 | 38.7°F | −2.7°F | 7.49 in |
| 2025 | 36.6°F | −4.8°F | 3.96 in |
| 2026 | 40.1°F | −1.3°F | 5.06 in |
Source: recent months: ACIS, station USW00053852. Records and recent months use complete months only.
How does January in Decatur compare across Alabama?
Across the 80 places PlainClimate covers in Alabama, January normal highs run from 48°F in Bridgeport to 63°F in Andalusia; Decatur's is 51°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.