July Weather in Gillette, United States

Last updated: June 24, 2025

In July, the average temperature in Gillette, United States hovers around 23°C (74°F). However, be prepared for a range of weather, as temperatures can dip as low as 7°C (45°F) and soar to a sizzling 41°C (106°F). During this month, precipitation averages 56 mm (2.2 in) across 9 days, paired with an average humidity level of 84%.

July Temperature in Gillette

In July in Gillette, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 41°C (106°F), while the minimum can drop as low as 7°C (45°F). It's essential to pack accordingly for your trip, as you may experience both heat and cooler evenings.

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

The chart illustrates July temperature patterns in Gillette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gillette, July typically has an average temperature of 23°C (74°F), with highs reaching up to 41°C (106°F) and lows dropping to around 7°C (45°F).

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

July Precipitation in Gillette

In Gillette in July, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.

July Precipitation Trends in Gillette

The chart displays monthly precipitation patterns in Gillette, 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 Gillette, July typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 9 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 Gillette

In Gillette in July, humidity is 84%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel sticky and heavy, while the air's thickness can be quite exhausting for long periods of travel.

July Average Humidity in Gillette

This chart illustrates the average monthly humidity levels in Gillette, 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 Gillette is approximately 84%, 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 Gillette

In Gillette 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 Gillette.

Maximum UV Index Levels in Gillette for July

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

Data source: Gillette 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 Gillette Compares to Other Months

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

This table compares monthly weather conditions in Gillette, 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)	19 mm (0.8 inches)	78%	moderate
February Weather	-5°C (23°F)	26 mm (1.0 inches)	79%	moderate
March Weather	3°C (38°F)	33 mm (1.3 inches)	71%	high
April Weather	6°C (42°F)	61 mm (2.4 inches)	70%	very high
May Weather	12°C (53°F)	67 mm (2.6 inches)	75%	very high
June Weather	19°C (67°F)	39 mm (1.6 inches)	82%	extreme
July Weather	23°C (74°F)	56 mm (2.2 inches)	84%	extreme
August Weather	21°C (71°F)	35 mm (1.4 inches)	85%	very high
September Weather	16°C (62°F)	43 mm (1.7 inches)	79%	very high
October Weather	6°C (44°F)	47 mm (1.9 inches)	75%	moderate
November Weather	3°C (37°F)	20 mm (0.8 inches)	75%	moderate
December Weather	-1°C (30°F)	24 mm (0.9 inches)	81%	low