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July Weather in Deerfield, United States

Last updated: June 24, 2025

In Deerfield, United States, the average temperature in July is a pleasant 19°C (66°F). You can expect temperatures to range from a cool 6°C (43°F) to a warm 32°C (89°F). This month typically sees 139 mm (5.5 in) of precipitation over 15 days, contributing to an average humidity of 75%. Perfect for those who enjoy a mildly humid climate!

July Temperature in Deerfield

In July in Deerfield, the average temperature is 19°C (66°F), with maximums potentially reaching 32°C (89°F) and minimums dropping as low as 6°C (43°F). This makes it an ideal time for travelers to enjoy mild weather while exploring the local attractions.

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

The chart illustrates July 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, July typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (89°F) and lows dropping to around 6°C (43°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.

July Precipitation in Deerfield

In Deerfield in July, the precipitation amount is 139 mm (5.5 in), occurring over 15 days.

July Precipitation Trends in Deerfield

The chart displays monthly precipitation patterns in Deerfield, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Deerfield, July typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec92928213611112013911274147123112
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Deerfield

In Deerfield in July humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

July Average Humidity in Deerfield

This chart illustrates the average monthly humidity levels in Deerfield, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Deerfield is approximately 75%, 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in Deerfield

In Deerfield in July, 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 July

The chart shows the monthly maximum UV Index (UVI) for Deerfield in July, 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 July, the maximum UV index in Deerfield typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
Data source: Deerfield July 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 July 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 July’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 July’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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