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June Weather in Fairfield, United States

Last updated: June 24, 2025

In June, the average temperature in Fairfield, United States hovers around 17°C (63°F), with a minimum dipping to 4°C (40°F) and a maximum soaring to 38°C (100°F). Expect around 80 mm (3.1 in) of precipitation spread over 9 days, contributing to an average humidity of 78%. Be prepared for a mix of weather, but overall a refreshing experience awaits!

June Temperature in Fairfield

In June in Fairfield, the average temperature is 17°C (63°F). Maximums can reach 38°C (100°F) and minimums can be as low as 4°C (40°F). This variability makes it essential for travelers to pack layers and be prepared for both warm and cooler temperatures.

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

The chart illustrates June 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, June typically has an average temperature of 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dropping to around 4°C (40°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.

June Precipitation in Fairfield

In Fairfield in June, the precipitation amount is 80 mm (3.1 in) spread over 9 days.

June Precipitation Trends in Fairfield

The chart displays monthly precipitation patterns in Fairfield, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Fairfield, June typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec13352554758092038332423
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Fairfield

In Fairfield in June, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

June Average Humidity in Fairfield

This chart illustrates the average monthly humidity levels in Fairfield, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Fairfield

In Fairfield in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Fairfield.

Maximum UV Index Levels in Fairfield for June

The chart shows the monthly maximum UV Index (UVI) for Fairfield in June, 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 June, the maximum UV index in Fairfield typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910997532
Data source: Fairfield June 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 June 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 June’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 June’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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