July Weather in Pomona, United States

Last updated: June 24, 2025

In Pomona, United States, the average temperature in July is a warm 27°C (80°F). While you can enjoy sunny days with highs reaching up to 39°C (102°F), the nights can cool down to a refreshing 15°C (60°F). Be prepared for some rain, as 105 mm (4.1 in) of precipitation may fall over about 10 days. With an average humidity of 81%, the air will feel quite tropical—perfect for those who love a warm climate!

July Temperature in Pomona

In July in Pomona, the average temperature is 27°C (80°F). Maximums can reach 39°C (102°F) and minimums can be as low as 15°C (60°F). It's a great time to visit for warm weather, but be prepared for both the heat and cooler evenings.

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

The chart illustrates July temperature patterns in Pomona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pomona, July typically has an average temperature of 27°C (80°F), with highs reaching up to 39°C (102°F) and lows dropping to around 15°C (60°F).

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

July Precipitation in Pomona

In Pomona in July, the precipitation amount is 105 mm (4.1 in) over the course of 10 days.

July Precipitation Trends in Pomona

The chart displays monthly precipitation patterns in Pomona, 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 Pomona, July typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 10 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 Pomona

In Pomona in July, humidity is 81%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapping around you, making travel feel sticky and heavy, but the vibrant atmosphere can still be invigorating, inviting moments of exploration in slower, more deliberate steps.

July Average Humidity in Pomona

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

In Pomona 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 Pomona.

Maximum UV Index Levels in Pomona for July

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

Data source: Pomona 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 Pomona Compares to Other Months

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

This table compares monthly weather conditions in Pomona, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	53 mm (2.1 inches)	76%	moderate
February Weather	1°C (34°F)	35 mm (1.4 inches)	77%	high
March Weather	9°C (48°F)	95 mm (3.7 inches)	70%	high
April Weather	13°C (55°F)	94 mm (3.7 inches)	73%	very high
May Weather	19°C (66°F)	202 mm (7.9 inches)	82%	very high
June Weather	25°C (78°F)	111 mm (4.4 inches)	82%	extreme
July Weather	27°C (80°F)	105 mm (4.1 inches)	81%	extreme
August Weather	25°C (77°F)	121 mm (4.8 inches)	78%	very high
September Weather	22°C (72°F)	80 mm (3.1 inches)	71%	very high
October Weather	14°C (58°F)	118 mm (4.6 inches)	71%	high
November Weather	7°C (45°F)	38 mm (1.5 inches)	81%	moderate
December Weather	4°C (39°F)	32 mm (1.3 inches)	84%	moderate