July Weather in Deerfield, United States

Last updated: June 24, 2025

In July, the average temperature in Deerfield, United States is a warm 26°C (79°F). You can expect a minimum of 14°C (58°F) and highs reaching up to 40°C (105°F). During this month, precipitation averages 46 mm (1.8 in) over about 8 days, and the average humidity sits at a comfortable 82%.

July Temperature in Deerfield

In July in Deerfield, the average temperature is 26°C (79°F). The maximum can reach 40°C (105°F), while the minimum can drop to as low as 14°C (58°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities, ensuring you're prepared for both warm and cooler moments.

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 26°C (79°F), with highs reaching up to 40°C (105°F) and lows dropping to around 14°C (58°F).

Data source: Temperature data for Deerfield generated using information from the Copernicus Climate Change Service.

July Precipitation in Deerfield

In Deerfield in July, the precipitation amount is 46 mm (1.8 in) over the course of 8 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 46 mm (1.8 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Deerfield

In Deerfield in July, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

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 82%, offering insight into how humid the weather typically is during this month.

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 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. 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 12, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	16 mm (0.6 inches)	74%	moderate
February Weather	1°C (34°F)	17 mm (0.7 inches)	77%	moderate
March Weather	8°C (46°F)	47 mm (1.9 inches)	65%	high
April Weather	12°C (54°F)	41 mm (1.6 inches)	67%	very high
May Weather	17°C (63°F)	112 mm (4.4 inches)	81%	extreme
June Weather	24°C (76°F)	50 mm (2.0 inches)	82%	extreme
July Weather	26°C (79°F)	46 mm (1.8 inches)	82%	extreme
August Weather	25°C (77°F)	67 mm (2.6 inches)	84%	extreme
September Weather	22°C (71°F)	42 mm (1.7 inches)	79%	very high
October Weather	13°C (55°F)	39 mm (1.6 inches)	75%	high
November Weather	7°C (45°F)	10 mm (0.4 inches)	79%	moderate
December Weather	3°C (37°F)	18 mm (0.7 inches)	83%	moderate