Cold desert climate
Climate Decatur - Alabama
Annual high71ºF
Annual low52ºF
| Month | HighºF | LowºF |
|---|---|---|
| Jan | 51 | 32 |
| Feb | 55 | 35 |
| Mar | 64 | 42 |
| Apr | 72 | 51 |
| May | 78 | 60 |
| Jun | 85 | 67 |
| Jul | 87 | 71 |
| Aug | 88 | 70 |
| Sep | 83 | 63 |
| Oct | 73 | 52 |
| Nov | 62 | 42 |
| Dec | 53 | 34 |
- JanHigh 51ºFLow 32ºF
- FebHigh 55ºFLow 35ºF
- MarHigh 64ºFLow 42ºF
- AprHigh 72ºFLow 51ºF
- MayHigh 78ºFLow 60ºF
- JunHigh 85ºFLow 67ºF
- JulHigh 87ºFLow 71ºF
- AugHigh 88ºFLow 70ºF
- SepHigh 83ºFLow 63ºF
- OctHigh 73ºFLow 52ºF
- NovHigh 62ºFLow 42ºF
- DecHigh 53ºFLow 34ºF
Climate summary
What is the average weather in Decatur, Alabama?
Decatur is characterized by a cold desert climate, featuring very low annual precipitation that is typically scarce and infrequent year-round. Summers are hot, contrasting with cold winters, creating a strong seasonal difference. Rainfall is spread fairly evenly throughout the year, with winter being both the wettest and driest season.
Decatur weather averages
Annual high71ºF
Annual low52ºF
Daily normals Decatur - Alabama - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 52.5 | 32.0 | 0.16 | 0.16 |
| Jan 2 | 52.4 | 31.9 | 0.32 | 0.32 |
| Jan 3 | 52.3 | 31.8 | 0.49 | 0.49 |
| Jan 4 | 52.2 | 31.7 | 0.65 | 0.65 |
| Jan 5 | 52.2 | 31.6 | 0.83 | 0.83 |
| Jan 6 | 52.1 | 31.5 | 1.00 | 1.00 |
| Jan 7 | 52.1 | 31.5 | 1.16 | 1.16 |
| Jan 8 | 52.0 | 31.4 | 1.32 | 1.32 |
| Jan 9 | 52.0 | 31.3 | 1.50 | 1.50 |
| Jan 10 | 52.0 | 31.2 | 1.67 | 1.67 |
| Jan 11 | 52.0 | 31.2 | 1.85 | 1.85 |
| Jan 12 | 52.0 | 31.1 | 2.02 | 2.02 |
| Jan 13 | 52.0 | 31.0 | 2.19 | 2.19 |
| Jan 14 | 52.0 | 31.0 | 2.36 | 2.36 |
| Jan 15 | 52.0 | 30.9 | 2.53 | 2.53 |
| Jan 16 | 52.0 | 30.9 | 2.69 | 2.69 |
| Jan 17 | 52.1 | 30.9 | 2.86 | 2.86 |
| Jan 18 | 52.1 | 30.9 | 3.03 | 3.03 |
| Jan 19 | 52.2 | 30.8 | 3.20 | 3.20 |
| Jan 20 | 52.3 | 30.8 | 3.37 | 3.37 |
| Jan 21 | 52.3 | 30.8 | 3.55 | 3.55 |
| Jan 22 | 52.4 | 30.9 | 3.74 | 3.74 |
| Jan 23 | 52.5 | 30.9 | 3.94 | 3.94 |
| Jan 24 | 52.6 | 30.9 | 4.13 | 4.13 |
| Jan 25 | 52.7 | 31.0 | 4.32 | 4.32 |
| Jan 26 | 52.9 | 31.0 | 4.50 | 4.50 |
| Jan 27 | 53.0 | 31.1 | 4.68 | 4.68 |
| Jan 28 | 53.1 | 31.1 | 4.87 | 4.87 |
| Jan 29 | 53.3 | 31.2 | 5.06 | 5.06 |
| Jan 30 | 53.4 | 31.3 | 5.25 | 5.25 |
| Jan 31 | 53.6 | 31.4 | 5.44 | 5.44 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Decatur - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 90.0 | 55.0 | 0.00 |
| Oct 2 | 90.0 | 55.9 | 0.00 |
| Oct 3 | 81.0 | 60.1 | 0.00 |
| Oct 4 | 89.1 | 64.9 | 0.00 |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 82.0 | 55.9 | 0.00 |
| Oct 9 | 88.0 | 59.0 | 0.00 |
| Oct 10 | 77.0 | 59.0 | 1.20 |
| Oct 11 | 69.1 | 60.1 | 0.87 |
| Oct 12 | 77.0 | 57.9 | 0.00 |
| Oct 13 | 86.0 | 57.9 | 0.00 |
| Oct 14 | 88.0 | 62.1 | 0.00 |
| Oct 15 | 90.0 | 64.0 | 0.00 |
| Oct 16 | 90.0 | 60.1 | 0.00 |
| Oct 17 | 77.0 | 48.0 | 0.01 |
| Oct 18 | 64.9 | 42.1 | 0.00 |
| Oct 19 | 68.0 | 43.0 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | – | – | – |
| Oct 23 | 75.0 | 45.0 | 0.00 |
| Oct 24 | 79.0 | 46.0 | 0.00 |
| Oct 25 | 75.0 | 45.0 | 0.00 |
| Oct 26 | 73.9 | 45.0 | 0.00 |
| Oct 27 | 71.1 | 46.9 | 0.00 |
| Oct 28 | 73.9 | 48.0 | 0.00 |
| Oct 29 | 73.9 | 50.0 | 0.00 |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature90.0ºF · Oct 1
- Lowest max temperature64.9ºF · Oct 18
- Highest min temperature64.9ºF · Oct 4
- Lowest min temperature42.1ºF · Oct 18
Geo Decatur - Alabama
Location
- Country
- United States
- State
- Alabama
- County
- Morgan
- City
- Decatur
- Zip Code
- 35601
- Elevation
- 581 ft
- Longitude
- -86.98
- Latitude
- 34.61
- ICAO
- –
- IATA
- –