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April Weather in Fairfield, United States

Last updated: June 24, 2025

In April, the average temperature in Fairfield, United States is a chilly 5°C (41°F), with extremes ranging from a brisk -15°C (5°F) to a warm 28°C (82°F). Expect about 54 mm (2.1 in) of precipitation spread over 11 days, contributing to an average humidity of 78%. Plan accordingly and embrace the season!

April Temperature in Fairfield

In April in Fairfield, the average temperature is 5°C (41°F). Maximum can reach 28°C (82°F) and minimum can be as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures, so layering clothing is essential.

April Weather in Fairfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Fairfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairfield, April typically has an average temperature of 5°C (41°F), with highs reaching up to 28°C (82°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec241932415362706858433528
Data source: Temperature data for Fairfield generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Fairfield

In Fairfield in April, the precipitation amount is 54 mm (2.1 in), occurring over the course of 11 days.

April Precipitation Trends in Fairfield

The chart displays monthly precipitation patterns in Fairfield, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Fairfield, April typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec13352554758092038332423
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Fairfield

In Fairfield in April, humidity is 78%. With an average temperature of 5°C (41°F), this humidity feels like walking through a chill that clings to your skin, making every breath feel damp and cold, which can be uncomfortable for traveling.

April Average Humidity in Fairfield

This chart illustrates the average monthly humidity levels in Fairfield, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Fairfield is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%83%78%76%78%77%71%68%72%84%91%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Fairfield

In Fairfield in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Fairfield.

Maximum UV Index Levels in Fairfield for April

The chart shows the monthly maximum UV Index (UVI) for Fairfield in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Fairfield typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910997532
Data source: Fairfield April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Fairfield Compares to Other Months

Weather in Fairfield varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Fairfield, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Fairfield, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)13 mm (0.5 inches)87%low
February Weather-7°C (19°F)35 mm (1.4 inches)88%moderate
March Weather0°C (33°F)25 mm (1.0 inches)83%moderate
April Weather5°C (41°F)54 mm (2.1 inches)78%high
May Weather12°C (53°F)75 mm (2.9 inches)76%very high
June Weather17°C (63°F)80 mm (3.1 inches)78%very high
July Weather21°C (71°F)9 mm (0.4 inches)77%very high
August Weather20°C (68°F)20 mm (0.8 inches)71%very high
September Weather14°C (58°F)38 mm (1.5 inches)68%high
October Weather6°C (44°F)33 mm (1.3 inches)72%moderate
November Weather2°C (36°F)24 mm (0.9 inches)84%moderate
December Weather-2°C (28°F)23 mm (0.9 inches)90%low

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