Decatur weather in March
In March, Decatur sees average daytime highs of 63°F and overnight lows near 45°F, with 5.5 in of precipitation across 11.4 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.
Highs climb over the month, from about 59°F in the first days to 67°F by the end. The sky is clear or mostly clear about 33% of the time in March, and the air most often feels dry.
Daylight stretches from about 11 h 12 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Decatur's 9th-clearest and 1st-windiest month. For the whole year in context, see Decatur's year-round climate.
- Daytime high
- 63°
- 8th warmest
- Overnight low
- 45°
- 5th coldest
- Precipitation
- 5.5 in
- 11.4 wet days
- Daylight
- 11 h 42 min
- 6:06 AM – 5:50 PM
- Cloud cover
- 60%
- 9th clearest
- Wind
- 7 mph
- 1st windiest
- Solar energy
- 4.31 kWh/m²
- Travel score
- 5.4
- out of 10
Decatur is city in Morgan and Limestone counties, Alabama, United States.
- Density
- 354/km²
- people per km²
- Founded
- 1821
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Highs climb over the month, from about 59°F in the first days to 67°F by the end.
A typical March day in Decatur reaches about 63°F in the afternoon and slips back to 45°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 50°F and 75°F. Set against its neighbours, March runs about 8°F warmer than February and about 8°F cooler than April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 67 |
| Avg low (°F) | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 49 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 59 | 41 |
| 2 | 59 | 41 |
| 3 | 59 | 41 |
| 4 | 59 | 41 |
| 5 | 60 | 41 |
| 6 | 60 | 42 |
| 7 | 60 | 42 |
| 8 | 61 | 42 |
| 9 | 61 | 42 |
| 10 | 61 | 43 |
| 11 | 62 | 43 |
| 12 | 62 | 43 |
| 13 | 62 | 44 |
| 14 | 62 | 44 |
| 15 | 63 | 44 |
| 16 | 63 | 45 |
| 17 | 63 | 45 |
| 18 | 64 | 45 |
| 19 | 64 | 46 |
| 20 | 64 | 46 |
| 21 | 65 | 46 |
| 22 | 65 | 46 |
| 23 | 65 | 47 |
| 24 | 65 | 47 |
| 25 | 66 | 47 |
| 26 | 66 | 47 |
| 27 | 66 | 47 |
| 28 | 67 | 48 |
| 29 | 67 | 48 |
| 30 | 67 | 48 |
| 31 | 67 | 49 |
How March really feels in Decatur
Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Decatur weather by month
How March compares with the rest of the year at a glance. March is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 51° / 35° | 4.9 | 9.9 | 0.6 | 9.9 | 2.4 |
| Feb | 55° / 38° | 4.7 | 10.4 | 0.6 | 10.7 | 3.4 |
| Mar | 63° / 45° | 5.5 | 11.4 | 0.2 | 11.7 | 5.4 |
| Apr | 71° / 53° | 5.0 | 10.1 | 0 | 12.8 | 6.6 |
| May | 79° / 62° | 4.2 | 10.9 | 0 | 13.8 | 6.5 |
| Jun | 86° / 69° | 4.3 | 12.6 | 0 | 14.3 | 4.8 |
| Jul | 88° / 72° | 4.2 | 13.1 | 0 | 14.1 | 4.2 |
| Aug | 88° / 71° | 3.1 | 11.5 | 0 | 13.3 | 4.4 |
| Sep | 83° / 65° | 3.5 | 7.7 | 0 | 12.2 | 6.3 |
| Oct | 73° / 53° | 3.4 | 7.4 | 0 | 11.1 | 7.3 |
| Nov | 61° / 43° | 4.0 | 8.5 | 0.1 | 10.2 | 5.4 |
| Dec | 53° / 37° | 5.2 | 10.7 | 0.3 | 9.7 | 3.0 |
Cloud cover in March
The sky is clear or mostly clear about 33% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 55%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 44 | 44 | 46 | 46 | 46 | 46 | 47 | 46 | 45 | 46 | 46 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 45 | 44 | 44 | 44 | 44 | 45 | 46 | 46 | 45 | 45 | 45 | 45 |
| Cloudier (%) | 56 | 56 | 54 | 54 | 54 | 54 | 53 | 54 | 55 | 54 | 54 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 55 | 56 | 56 | 56 | 56 | 55 | 54 | 54 | 55 | 55 | 55 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 44 | 56 |
| 2 | 44 | 56 |
| 3 | 46 | 54 |
| 4 | 46 | 54 |
| 5 | 46 | 54 |
| 6 | 46 | 54 |
| 7 | 47 | 53 |
| 8 | 46 | 54 |
| 9 | 45 | 55 |
| 10 | 46 | 54 |
| 11 | 46 | 54 |
| 12 | 45 | 55 |
| 13 | 45 | 55 |
| 14 | 45 | 55 |
| 15 | 45 | 55 |
| 16 | 45 | 55 |
| 17 | 45 | 55 |
| 18 | 44 | 56 |
| 19 | 44 | 56 |
| 20 | 45 | 55 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 44 | 56 |
| 24 | 44 | 56 |
| 25 | 45 | 55 |
| 26 | 46 | 54 |
| 27 | 46 | 54 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 45 | 55 |
| 31 | 45 | 55 |
Chance of precipitation in March
Decatur gets around 5.5 in of rain and snow over 11.4 wet days in March, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 36% and peaks near 37% on the wettest days, and about 0 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 37 | 37 |
| Rain chance (%) | |
|---|---|
| 1 | 37 |
| 2 | 37 |
| 3 | 37 |
| 4 | 37 |
| 5 | 37 |
| 6 | 37 |
| 7 | 37 |
| 8 | 37 |
| 9 | 37 |
| 10 | 37 |
| 11 | 37 |
| 12 | 36 |
| 13 | 36 |
| 14 | 36 |
| 15 | 35 |
| 16 | 35 |
| 17 | 35 |
| 18 | 35 |
| 19 | 35 |
| 20 | 35 |
| 21 | 35 |
| 22 | 35 |
| 23 | 35 |
| 24 | 35 |
| 25 | 36 |
| 26 | 36 |
| 27 | 36 |
| 28 | 37 |
| 29 | 37 |
| 30 | 37 |
| 31 | 37 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 91 | 91 | 91 | 91 | 91 | 91 | 90 | 90 | 90 | 90 | 90 | 90 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 85 | 85 | 84 | 83 | 82 | 82 | 80 | 80 | 78 | 78 |
| Comfortable (%) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 15 |
| Humid (%) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 91 | 7 | 2 |
| 2 | 91 | 7 | 2 |
| 3 | 91 | 7 | 2 |
| 4 | 91 | 7 | 2 |
| 5 | 91 | 7 | 2 |
| 6 | 91 | 7 | 2 |
| 7 | 90 | 7 | 3 |
| 8 | 90 | 7 | 3 |
| 9 | 90 | 7 | 3 |
| 10 | 90 | 7 | 3 |
| 11 | 90 | 7 | 3 |
| 12 | 90 | 7 | 3 |
| 13 | 88 | 8 | 4 |
| 14 | 88 | 8 | 4 |
| 15 | 88 | 8 | 4 |
| 16 | 88 | 8 | 4 |
| 17 | 88 | 8 | 4 |
| 18 | 87 | 9 | 4 |
| 19 | 87 | 9 | 4 |
| 20 | 87 | 9 | 4 |
| 21 | 86 | 10 | 4 |
| 22 | 85 | 11 | 4 |
| 23 | 85 | 11 | 4 |
| 24 | 84 | 12 | 4 |
| 25 | 83 | 12 | 5 |
| 26 | 82 | 13 | 5 |
| 27 | 82 | 13 | 5 |
| 28 | 80 | 14 | 6 |
| 29 | 80 | 14 | 6 |
| 30 | 78 | 15 | 7 |
| 31 | 78 | 15 | 7 |
Wind in March
Winds average 7 mph in March, the windiest month of the year.
Across March, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 8 | light breeze |
| 2 | 8 | light breeze |
| 3 | 8 | light breeze |
| 4 | 8 | light breeze |
| 5 | 8 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 8 | light breeze |
| 11 | 8 | light breeze |
| 12 | 8 | light breeze |
| 13 | 7 | light breeze |
| 14 | 7 | light breeze |
| 15 | 7 | light breeze |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in March
Daylight runs from about 11 h 12 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 66 minutes over March. Sunrise moves from 6:26 AM to 5:44 AM, and sunset from 5:37 PM to 6:02 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.2 | 11.2 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 |
| Sunrise (AM) | 6:26 | 6:24 | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:17 | 6:15 | 6:14 | 6:13 | 6:11 | 6:10 | 6:08 | 6:07 | 6:06 | 6:04 | 6:03 | 6:01 | 6:00 | 5:59 | 5:57 | 5:56 | 5:54 | 5:53 | 5:51 | 5:50 | 5:49 | 5:47 | 5:46 | 5:44 |
| Sunset (PM) | 5:37 | 5:38 | 5:39 | 5:39 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:45 | 5:45 | 5:46 | 5:47 | 5:48 | 5:49 | 5:50 | 5:50 | 5:51 | 5:52 | 5:53 | 5:54 | 5:54 | 5:55 | 5:56 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:01 | 6:02 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.2 | 6:26 | 5:37 |
| 2 | 11.2 | 6:24 | 5:38 |
| 3 | 11.3 | 6:23 | 5:39 |
| 4 | 11.3 | 6:22 | 5:39 |
| 5 | 11.3 | 6:21 | 5:40 |
| 6 | 11.4 | 6:19 | 5:41 |
| 7 | 11.4 | 6:18 | 5:42 |
| 8 | 11.4 | 6:17 | 5:43 |
| 9 | 11.5 | 6:15 | 5:44 |
| 10 | 11.5 | 6:14 | 5:45 |
| 11 | 11.5 | 6:13 | 5:45 |
| 12 | 11.6 | 6:11 | 5:46 |
| 13 | 11.6 | 6:10 | 5:47 |
| 14 | 11.7 | 6:08 | 5:48 |
| 15 | 11.7 | 6:07 | 5:49 |
| 16 | 11.7 | 6:06 | 5:50 |
| 17 | 11.8 | 6:04 | 5:50 |
| 18 | 11.8 | 6:03 | 5:51 |
| 19 | 11.8 | 6:01 | 5:52 |
| 20 | 11.9 | 6:00 | 5:53 |
| 21 | 11.9 | 5:59 | 5:54 |
| 22 | 12.0 | 5:57 | 5:54 |
| 23 | 12.0 | 5:56 | 5:55 |
| 24 | 12.0 | 5:54 | 5:56 |
| 25 | 12.1 | 5:53 | 5:57 |
| 26 | 12.1 | 5:51 | 5:58 |
| 27 | 12.1 | 5:50 | 5:58 |
| 28 | 12.2 | 5:49 | 5:59 |
| 29 | 12.2 | 5:47 | 6:00 |
| 30 | 12.3 | 5:46 | 6:01 |
| 31 | 12.3 | 5:44 | 6:02 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 4.31 kWh/m².
For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 6.2 kWh/m² in June across the year — March's 4.31 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.8 | Moderate |
| 2 | 3.8 | Moderate |
| 3 | 3.9 | Moderate |
| 4 | 3.9 | Moderate |
| 5 | 4.0 | Moderate |
| 6 | 4.0 | Bright |
| 7 | 4.0 | Bright |
| 8 | 4.1 | Bright |
| 9 | 4.1 | Bright |
| 10 | 4.2 | Bright |
| 11 | 4.2 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.4 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.5 | Bright |
| 21 | 4.5 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.6 | Bright |
| 24 | 4.6 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.8 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Decatur
None of Decatur's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Decatur sits in the Atlantic hurricane belt; the season peaks August–October.
Is March a good time to visit Decatur?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Decatur for sightseeing.
What to pack for Decatur in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Decatur sees daytime highs around 63°F and nights near 45°F. Worth packing: a warm layer and rain gear. About 11 days see rain.
UV index in Decatur in March
Clear-sky midday UV in March peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Decatur peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 7 | 8 | 10 | 10 | 9 | 7 | 5 | 4 | 2 |
| Level | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Decatur in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Decatur is worst in July — around 19 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (January, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 8 | 10 | 10 | 13 | 16 | 19 | 16 | 11 | 8 | 7 | 6 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 8 | Good |
| Mar | 10 | Good |
| Apr | 10 | Good |
| May | 13 | Moderate |
| Jun | 16 | Moderate |
| Jul | 19 | Moderate |
| Aug | 16 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 7 | Good |
| Dec | 6 | Good |
Where is Decatur?
Decatur sits at 34.6°N, 87.0°W, 561 ft above sea level, in United States. The nearest listed city is Athens, 14 mi away.
Topography around Decatur
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Decatur.
Within 2 miles, the terrain around Decatur has only modest variations in elevation — a maximum elevation change of 138 ft around an average of 571 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 505 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,621 ft.
The land around Decatur is covered by trees (31%), water (30%) and artificial surfaces (22%) within 2 miles, trees (43%) and cropland (23%) within 10 miles, and trees (62%) and grassland (23%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Decatur (34.6059°, -86.9833°, elevation 561 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).