UTC Offset
UTC-05:00
Jefferson, United States Snapshot 2026
Where is Jefferson?
Jefferson, United States
- Continent
- Americas
- Country
- United States
- City
- Jefferson
- Population
- 11.2K
- Elevation
- 1 m
- Coordinates
- 29.97°, -90.15°
Jefferson is a city in United States with a population of approximately 11.2K. Average temperatures range from 9°C (49°F) in January to 31°C (88°F) in August. The best time to visit is January, March, April, October, November.
Time in Jefferson right now
Open full time & time zone page 06:16 16
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 Jefferson
Daylight in Jefferson today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 04m
Climate normals for Jefferson
Long-term monthly averages based on historical data.
January best
Good 
February
Good March best
Excellent April best
Excellent May
Good June
Poor July
Wet August
Wet September
Fair October best
Excellent November best
Excellent December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 16°C / 9°C | 15°C / 6°C | 10days (109 mm) Wet | 7.3h Good | 75% Muggy | 4 Moderate | Good | View Details |
| February | 20°C / 12°C | 19°C / 10°C | 11days (103 mm) Wet | 7.7h Good | 79% Humid | 5.1 High | Good | View Details |
| March best | 22°C / 15°C | 23°C / 14°C | 11days (112 mm) Wet | 9h Good | 76% Humid | 6.7 High | Excellent | View Details |
| April best | 25°C / 18°C | 26°C / 18°C | 10days (100 mm) Wet | 10.2h Excellent | 74% Muggy | 7.6 Very High | Excellent | View Details |
| May | 28°C / 22°C | 32°C / 24°C | 11days (129 mm) Wet | 10.8h Excellent | 77% Humid | 8.1 Very High | Good | View Details |
| June | 31°C / 25°C | 36°C / 29°C | 16days (155 mm) Wet | 11.1h Excellent | 79% Humid | 8.4 Very High | Poor | View Details |
| July | 31°C / 26°C | 37°C / 31°C | 21days (172 mm) Wet | 10.6h Excellent | 82% Humid | 8.3 Very High | Wet | View Details |
| August | 31°C / 26°C | 37°C / 31°C | 20days (211 mm) Wet | 10.1h Excellent | 81% Humid | 8.1 Very High | Wet | View Details |
| September | 30°C / 24°C | 34°C / 28°C | 11days (129 mm) Wet | 10.1h Excellent | 78% Humid | 7.1 Very High | Fair | View Details |
| October best | 26°C / 20°C | 28°C / 21°C | 8days (95 mm) Wet | 9.4h Good | 75% Muggy | 5.9 High | Excellent | View Details |
| November best | 21°C / 15°C | 22°C / 13°C | 7days (85 mm) Good | 8h Good | 75% Muggy | 4.5 Moderate | Excellent | View Details |
| December | 18°C / 12°C | 18°C / 10°C | 11days (104 mm) Wet | 6.9h Fair | 79% Humid | 3.8 Moderate | Good | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 16°C / 9°C . Feb: 20°C / 12°C . Mar: 22°C / 15°C . Apr: 25°C / 18°C . May: 28°C / 22°C . Jun: 31°C / 25°C . Jul: 31°C / 26°C . Aug: 31°C / 26°C . Sep: 30°C / 24°C . Oct: 26°C / 20°C . Nov: 21°C / 15°C . Dec: 18°C / 12°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 109 mm. Feb: 103 mm. Mar: 112 mm. Apr: 100 mm. May: 129 mm. Jun: 155 mm. Jul: 172 mm. Aug: 211 mm. Sep: 129 mm. Oct: 95 mm. Nov: 85 mm. Dec: 104 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 79%. Mar: 76%. Apr: 74%. May: 77%. Jun: 79%. Jul: 82%. Aug: 81%. Sep: 78%. Oct: 75%. Nov: 75%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 21 km/h . Mar: 21 km/h . Apr: 22 km/h . May: 18 km/h . Jun: 16 km/h . Jul: 14 km/h . Aug: 15 km/h . Sep: 15 km/h . Oct: 18 km/h . Nov: 18 km/h . Dec: 20 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 7. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 5. Dec: UV 4.
Frequently Asked Questions
Jefferson has a population of approximately 11.2K.
The best months to visit Jefferson are January, March, April, October, November, when temperatures are pleasant and rainfall is lower.
Jefferson receives approximately 1504mm of rainfall annually across 147 rainy days.
Jefferson is located in United States, in the Americas region.
Jefferson sits at an elevation of 1 m (3 ft) above sea level.