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May Weather in Deerfield, United States

Last updated: June 24, 2025

The average temperature in Deerfield, United States during May hovers around 11°C (52°F). Expect a wide range, with minimums dipping to -4°C (26°F) and maximums reaching up to 30°C (86°F). During this period, precipitation typically totals 110 mm (4.4 in) over 13 days, contributing to an average humidity of 78%. 🌧️

May Temperature in Deerfield

In May in Deerfield, the average temperature is 11°C (52°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -4°C (26°F). This varied climate offers travelers the chance to experience both warm and chilly days, so it’s advisable to pack accordingly for a comfortable visit.

May Weather in Deerfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Deerfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Deerfield, May typically has an average temperature of 11°C (52°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec161925385261666457453020
Data source: Temperature data for Deerfield 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.

May Precipitation in Deerfield

In Deerfield in May, the precipitation amount is 110 mm (4.4 in) spread over 13 days.

May Precipitation Trends in Deerfield

The chart displays monthly precipitation patterns in Deerfield, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Deerfield, May typically receives around 110 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec92928213611112013911274147123112
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Deerfield

In Deerfield in May humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.

May Average Humidity in Deerfield

This chart illustrates the average monthly humidity levels in Deerfield, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Deerfield is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Deerfield

In Deerfield in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Deerfield.

Maximum UV Index Levels in Deerfield for May

The chart shows the monthly maximum UV Index (UVI) for Deerfield in May, 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 May, the maximum UV index in Deerfield typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: Deerfield May 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 May Weather in Deerfield Compares to Other Months

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

This table compares monthly weather conditions in Deerfield, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)91 mm (3.6 inches)91%low
February Weather-7°C (19°F)92 mm (3.6 inches)89%moderate
March Weather-4°C (26°F)82 mm (3.2 inches)85%high
April Weather3°C (39°F)136 mm (5.4 inches)84%very high
May Weather11°C (52°F)110 mm (4.4 inches)78%very high
June Weather16°C (61°F)120 mm (4.7 inches)72%very high
July Weather19°C (66°F)139 mm (5.5 inches)75%very high
August Weather18°C (64°F)112 mm (4.4 inches)74%very high
September Weather14°C (57°F)74 mm (2.9 inches)77%high
October Weather7°C (46°F)146 mm (5.8 inches)85%moderate
November Weather-1°C (31°F)123 mm (4.8 inches)86%moderate
December Weather-6°C (21°F)112 mm (4.4 inches)85%low

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