UTC Offset
UTC-05:00
Decatur, United States Snapshot 2026
Where is Decatur?
Decatur, United States
- Continent
- Americas
- Country
- United States
- City
- Decatur
- Population
- 55.4K
- Elevation
- 171 m
- Coordinates
- 34.61°, -86.98°
Decatur is a city in United States with a population of approximately 55.4K. Average temperatures range from 2°C (36°F) in January to 32°C (89°F) in July. The best time to visit is April, May, September, October. The city sits at an elevation of 171 m above sea level.
Time in Decatur right now
Open full time & time zone page 16:31 31
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Decatur
Daylight in Decatur today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 28m
Climate normals for Decatur
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Good April best
Excellent May best
Excellent June
Fair July
Fair August
Fair September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 11°C / 2°C | 8°C / -2°C | 10days (125 mm) Wet | 6.3h Fair | 71% Muggy | 3.7 Moderate | Poor | View Details |
| February | 15°C / 5°C | 13°C / 2°C | 12days (161 mm) Wet | 6.3h Fair | 73% Muggy | 4.4 Moderate | Poor | View Details |
| March | 18°C / 8°C | 17°C / 6°C | 13days (161 mm) Wet | 8h Good | 69% Muggy | 6.2 High | Good | View Details |
| April best | 22°C / 12°C | 22°C / 10°C | 10days (132 mm) Wet | 9.7h Good | 69% Muggy | 8.1 Very High | Excellent | View Details |
| May best | 26°C / 17°C | 28°C / 17°C | 12days (110 mm) Wet | 10.4h Excellent | 72% Muggy | 8.6 Very High | Excellent | View Details |
| June | 30°C / 21°C | 34°C / 23°C | 14days (115 mm) Wet | 11.4h Excellent | 73% Muggy | 9 Very High | Fair | View Details |
| July | 32°C / 23°C | 37°C / 27°C | 14days (94 mm) Wet | 11.7h Excellent | 75% Muggy | 8.8 Very High | Fair | View Details |
| August | 31°C / 22°C | 35°C / 26°C | 12days (97 mm) Wet | 10.8h Excellent | 73% Muggy | 8.1 Very High | Fair | View Details |
| September best | 29°C / 20°C | 31°C / 21°C | 8days (78 mm) Wet | 9.9h Good | 70% Muggy | 7.1 Very High | Excellent | View Details |
| October best | 24°C / 14°C | 24°C / 13°C | 6days (80 mm) Good | 8.8h Good | 68% Muggy | 5.8 High | Excellent | View Details |
| November | 17°C / 8°C | 16°C / 5°C | 8days (77 mm) Wet | 7.2h Good | 71% Muggy | 4.2 Moderate | Good | View Details |
| December | 13°C / 5°C | 11°C / 1°C | 10days (127 mm) Wet | 5.7h Fair | 75% Muggy | 3.2 Moderate | Fair | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 11°C / 2°C . Feb: 15°C / 5°C . Mar: 18°C / 8°C . Apr: 22°C / 12°C . May: 26°C / 17°C . Jun: 30°C / 21°C . Jul: 32°C / 23°C . Aug: 31°C / 22°C . Sep: 29°C / 20°C . Oct: 24°C / 14°C . Nov: 17°C / 8°C . Dec: 13°C / 5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 125 mm. Feb: 161 mm. Mar: 161 mm. Apr: 132 mm. May: 110 mm. Jun: 115 mm. Jul: 94 mm. Aug: 97 mm. Sep: 78 mm. Oct: 80 mm. Nov: 77 mm. Dec: 127 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 71%. Feb: 73%. Mar: 69%. Apr: 69%. May: 72%. Jun: 73%. Jul: 75%. Aug: 73%. Sep: 70%. Oct: 68%. Nov: 71%. Dec: 75%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 18 km/h . Mar: 18 km/h . Apr: 17 km/h . May: 15 km/h . Jun: 13 km/h . Jul: 11 km/h . Aug: 11 km/h . Sep: 12 km/h . Oct: 14 km/h . Nov: 15 km/h . Dec: 16 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 4. Mar: UV 6. Apr: UV 8. May: UV 9. Jun: UV 9. Jul: UV 9. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 3.
Frequently Asked Questions
Decatur has a population of approximately 55.4K.
The best months to visit Decatur are April, May, September, October, when temperatures are pleasant and rainfall is lower.
Decatur receives approximately 1357mm of rainfall annually across 129 rainy days.
Decatur is located in United States, in the Americas region.
Decatur sits at an elevation of 171 m (561 ft) above sea level.