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Fairfield, United States Snapshot 2026
Where is Fairfield?
Fairfield, United States
- Continent
- Americas
- Country
- United States
- City
- Fairfield
- Population
- 9.9K
- Elevation
- 236 m
- Coordinates
- 41.01°, -91.96°
Fairfield is a city in United States with a population of approximately 9.9K. Average temperatures range from -8°C (18°F) in January to 30°C (86°F) in July. The best time to visit is May, June, July, August, September. The city sits at an elevation of 236 m above sea level.
Time in Fairfield right now
Open full time & time zone page 06:33 33
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 Fairfield
Daylight in Fairfield today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 07m
Climate normals for Fairfield
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 0°C / -8°C | -4°C / -13°C | 7days (51 mm) Good | 5.7h Fair | 73% Muggy | 2.5 Moderate | Poor | View Details |
| February | 4°C / -6°C | 0°C / -11°C | 7days (42 mm) Good | 7.4h Good | 67% Muggy | 3.7 Moderate | Poor | View Details |
| March | 12°C / 1°C | 8°C / -4°C | 11days (83 mm) Wet | 7.8h Good | 65% Muggy | 4.8 Moderate | Poor | View Details |
| April | 17°C / 6°C | 14°C / 2°C | 11days (98 mm) Wet | 9h Good | 64% Muggy | 5.8 High | Fair | View Details |
| May best | 23°C / 12°C | 22°C / 11°C | 13days (121 mm) Wet | 10.1h Excellent | 68% Muggy | 7 High | Excellent | View Details |
| June best | 29°C / 19°C | 31°C / 19°C | 10days (108 mm) Wet | 12.2h Excellent | 65% Muggy | 7.3 Very High | Excellent | View Details |
| July best | 30°C / 20°C | 33°C / 22°C | 10days (89 mm) Wet | 11.9h Excellent | 70% Muggy | 7.3 Very High | Excellent | View Details |
| August best | 29°C / 19°C | 31°C / 20°C | 9days (74 mm) Wet | 11.3h Excellent | 69% Muggy | 6.6 High | Excellent | View Details |
| September best | 26°C / 16°C | 27°C / 16°C | 8days (93 mm) Wet | 10h Excellent | 67% Muggy | 5.6 High | Excellent | View Details |
| October | 19°C / 9°C | 17°C / 6°C | 9days (89 mm) Wet | 7.7h Good | 64% Muggy | 4.2 Moderate | Good | View Details |
| November | 11°C / 2°C | 7°C / -3°C | 6days (51 mm) Good | 6.7h Fair | 67% Muggy | 2.8 Moderate | Poor | View Details |
| December | 5°C / -4°C | 0°C / -9°C | 6days (49 mm) Good | 5.7h Fair | 71% Muggy | 2.1 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 0°C / -8°C . Feb: 4°C / -6°C . Mar: 12°C / 1°C . Apr: 17°C / 6°C . May: 23°C / 12°C . Jun: 29°C / 19°C . Jul: 30°C / 20°C . Aug: 29°C / 19°C . Sep: 26°C / 16°C . Oct: 19°C / 9°C . Nov: 11°C / 2°C . Dec: 5°C / -4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 51 mm. Feb: 42 mm. Mar: 83 mm. Apr: 98 mm. May: 121 mm. Jun: 108 mm. Jul: 89 mm. Aug: 74 mm. Sep: 93 mm. Oct: 89 mm. Nov: 51 mm. Dec: 49 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 67%. Mar: 65%. Apr: 64%. May: 68%. Jun: 65%. Jul: 70%. Aug: 69%. Sep: 67%. Oct: 64%. Nov: 67%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 22 km/h . Feb: 23 km/h . Mar: 24 km/h . Apr: 25 km/h . May: 21 km/h . Jun: 19 km/h . Jul: 17 km/h . Aug: 17 km/h . Sep: 18 km/h . Oct: 22 km/h . Nov: 22 km/h . Dec: 22 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
Fairfield has a population of approximately 9.9K.
The best months to visit Fairfield are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Fairfield receives approximately 948mm of rainfall annually across 107 rainy days.
Fairfield is located in United States, in the Americas region.
Fairfield sits at an elevation of 236 m (774 ft) above sea level.