July Weather in Derby, United States

Last updated: June 24, 2025

In Derby, United States, the average temperature in July hovers around 27°C (81°F), with a temperature range that can dip to a cool 15°C (60°F) and soar up to a blazing 40°C (105°F). Throughout the month, expect about 67 mm (2.7 in) of precipitation spread across 9 days, contributing to an average humidity of 81%. Stay prepared for both warmth and occasional rain!

July Temperature in Derby

In July in Derby, the average temperature is 27°C (81°F). The maximum can reach 40°C (105°F) and the minimum can be as low as 15°C (60°F). This range makes Derby an ideal destination for travelers seeking warm weather while also enjoying cooler evenings.

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

The chart illustrates July temperature patterns in Derby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Derby, July typically has an average temperature of 27°C (81°F), with highs reaching up to 40°C (105°F) and lows dropping to around 15°C (60°F).

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

July Precipitation in Derby

In Derby in July, the precipitation amount is 67 mm (2.7 in), occurring over a span of 9 days.

July Precipitation Trends in Derby

The chart displays monthly precipitation patterns in Derby, 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 Derby, July typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Derby

In Derby in July humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

July Average Humidity in Derby

This chart illustrates the average monthly humidity levels in Derby, 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 Derby 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 Derby

In Derby in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Derby.

Maximum UV Index Levels in Derby for July

The chart shows the monthly maximum UV Index (UVI) for Derby 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 Derby typically reaches 11, which falls under the extreme exposure category.

Data source: Derby 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 Derby Compares to Other Months

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

This table compares monthly weather conditions in Derby, 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 (35°F)	40 mm (1.6 inches)	77%	moderate
February Weather	2°C (36°F)	28 mm (1.1 inches)	76%	high
March Weather	10°C (50°F)	82 mm (3.2 inches)	71%	high
April Weather	13°C (56°F)	85 mm (3.4 inches)	73%	very high
May Weather	19°C (67°F)	166 mm (6.5 inches)	83%	very high
June Weather	26°C (78°F)	106 mm (4.2 inches)	83%	extreme
July Weather	27°C (81°F)	67 mm (2.7 inches)	81%	extreme
August Weather	26°C (79°F)	86 mm (3.4 inches)	73%	very high
September Weather	23°C (74°F)	78 mm (3.1 inches)	67%	very high
October Weather	15°C (59°F)	127 mm (5.0 inches)	72%	high
November Weather	8°C (46°F)	27 mm (1.0 inches)	82%	moderate
December Weather	4°C (40°F)	30 mm (1.2 inches)	85%	moderate