July Weather in Decatur, United States

Last updated: June 24, 2025

In July, the average temperature in Decatur, United States is a pleasant 24°C (75°F). Expect a minimum of 13°C (55°F) and a maximum of 33°C (92°F), providing a nice range for outdoor activities. However, be prepared for some rain, as 119 mm (4.7 in) of precipitation typically falls over 12 days. With an average humidity of 81%, the air can feel quite humid, so dress comfortably for the weather!

July Temperature in Decatur

In July in Decatur, the average temperature is 24°C (75°F). Maximums can reach 33°C (92°F), while minimums can drop to as low as 13°C (55°F). This pleasant climate makes Decatur an ideal destination for travelers seeking a comfortable getaway.

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

The chart illustrates July temperature patterns in Decatur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Decatur, July typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (92°F) and lows dropping to around 13°C (55°F).

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

July Precipitation in Decatur

In Decatur in July, the total precipitation amount is 119 mm (4.7 in), falling over a span of 12 days.

July Precipitation Trends in Decatur

The chart displays monthly precipitation patterns in Decatur, 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 Decatur, July typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 12 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 Decatur

In Decatur in July humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

July Average Humidity in Decatur

This chart illustrates the average monthly humidity levels in Decatur, 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 Decatur is approximately 81%, 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 Decatur

In Decatur in July, 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 Decatur.

Maximum UV Index Levels in Decatur for July

The chart shows the monthly maximum UV Index (UVI) for Decatur 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 Decatur typically reaches 10, which falls under the very high exposure category.

Data source: Decatur 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 Decatur Compares to Other Months

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

This table compares monthly weather conditions in Decatur, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	74 mm (2.9 inches)	85%	moderate
February Weather	-2°C (29°F)	77 mm (3.0 inches)	85%	moderate
March Weather	3°C (39°F)	90 mm (3.5 inches)	86%	high
April Weather	8°C (48°F)	109 mm (4.3 inches)	87%	very high
May Weather	16°C (61°F)	168 mm (6.6 inches)	81%	very high
June Weather	22°C (71°F)	137 mm (5.4 inches)	82%	very high
July Weather	24°C (75°F)	119 mm (4.7 inches)	81%	very high
August Weather	22°C (72°F)	95 mm (3.7 inches)	79%	very high
September Weather	19°C (67°F)	84 mm (3.3 inches)	78%	very high
October Weather	12°C (54°F)	144 mm (5.7 inches)	81%	high
November Weather	4°C (40°F)	73 mm (2.9 inches)	89%	moderate
December Weather	1°C (34°F)	65 mm (2.6 inches)	86%	low