UTC Offset
UTC-05:00
Decatur, United States Snapshot 2026
Where is Decatur?
Decatur, United States
- Continent
- Americas
- Country
- United States
- City
- Decatur
- Population
- 73.3K
- Elevation
- 205 m
- Coordinates
- 39.84°, -88.95°
Decatur is a city in United States with a population of approximately 73.3K. Average temperatures range from -5°C (23°F) in January to 29°C (85°F) in July. The best time to visit is May, June, July, August, September. The city sits at an elevation of 205 m above sea level.
Time in Decatur right now
Open full time & time zone page 06:21 21
Tuesday, June 16, 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 59m
Climate normals for Decatur
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July best
Good August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / -5°C | -2°C / -10°C | 8days (69 mm) Wet | 5.4h Fair | 71% Muggy | 2.5 Moderate | Poor | View Details |
| February | 6°C / -3°C | 2°C / -8°C | 8days (63 mm) Wet | 6.8h Fair | 69% Muggy | 3.7 Moderate | Poor | View Details |
| March | 13°C / 3°C | 9°C / -2°C | 11days (113 mm) Wet | 7.5h Good | 66% Muggy | 4.9 Moderate | Poor | View Details |
| April | 18°C / 7°C | 16°C / 3°C | 11days (129 mm) Wet | 8.9h Good | 66% Muggy | 5.6 High | Fair | View Details |
| May best | 23°C / 13°C | 23°C / 12°C | 13days (116 mm) Wet | 10.1h Excellent | 70% Muggy | 6.7 High | Excellent | View Details |
| June best | 28°C / 19°C | 31°C / 19°C | 10days (103 mm) Wet | 12h Excellent | 68% Muggy | 7.3 Very High | Excellent | View Details |
| July best | 29°C / 21°C | 33°C / 23°C | 12days (131 mm) Wet | 12h Excellent | 74% Muggy | 7.2 Very High | Good | View Details |
| August best | 28°C / 20°C | 31°C / 21°C | 9days (85 mm) Wet | 11.1h Excellent | 74% Muggy | 6.8 High | Excellent | View Details |
| September best | 27°C / 17°C | 28°C / 17°C | 7days (76 mm) Good | 10h Excellent | 68% Muggy | 5.6 High | Excellent | View Details |
| October | 20°C / 11°C | 18°C / 8°C | 9days (88 mm) Wet | 7.7h Good | 66% Muggy | 4.3 Moderate | Good | View Details |
| November | 11°C / 3°C | 8°C / -1°C | 7days (66 mm) Good | 6.6h Fair | 69% Muggy | 2.9 Moderate | Poor | View Details |
| December | 6°C / -2°C | 2°C / -6°C | 9days (57 mm) Wet | 5.4h Fair | 72% Muggy | 2.2 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 3°C / -5°C . Feb: 6°C / -3°C . Mar: 13°C / 3°C . Apr: 18°C / 7°C . May: 23°C / 13°C . Jun: 28°C / 19°C . Jul: 29°C / 21°C . Aug: 28°C / 20°C . Sep: 27°C / 17°C . Oct: 20°C / 11°C . Nov: 11°C / 3°C . Dec: 6°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 69 mm. Feb: 63 mm. Mar: 113 mm. Apr: 129 mm. May: 116 mm. Jun: 103 mm. Jul: 131 mm. Aug: 85 mm. Sep: 76 mm. Oct: 88 mm. Nov: 66 mm. Dec: 57 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 71%. Feb: 69%. Mar: 66%. Apr: 66%. May: 70%. Jun: 68%. Jul: 74%. Aug: 74%. Sep: 68%. Oct: 66%. Nov: 69%. Dec: 72%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 22 km/h . Mar: 24 km/h . Apr: 24 km/h . May: 20 km/h . Jun: 18 km/h . Jul: 16 km/h . Aug: 15 km/h . Sep: 17 km/h . Oct: 21 km/h . Nov: 21 km/h . Dec: 21 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Decatur has a population of approximately 73.3K.
The best months to visit Decatur are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Decatur receives approximately 1096mm of rainfall annually across 114 rainy days.
Decatur is located in United States, in the Americas region.
Decatur sits at an elevation of 205 m (673 ft) above sea level.