May Weather in Glendora, United States

Last updated: June 24, 2025

In Glendora, United States, the average temperature in May hovers around 17°C (62°F). You can expect a minimum of 3°C (38°F) and a maximum of 32°C (90°F). During this time, precipitation typically totals 20 mm (0.8 in) spread over 4 days, with an average humidity of 57%.

May Temperature in Glendora

In May in Glendora, the average temperature is 17°C (62°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 3°C (38°F). This diverse temperature range makes Glendora an ideal destination for travelers seeking both warmth and cool, pleasant evenings.

May Weather in Glendora: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Glendora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glendora, May typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (38°F).

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

May Precipitation in Glendora

In Glendora in May, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

May Precipitation Trends in Glendora

The chart displays monthly precipitation patterns in Glendora, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Glendora, May typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Glendora

In Glendora in May, humidity is 57%. With an average temperature of 17°C (62°F), this humidity feels like a refreshing embrace, making it quite pleasant for traveling as long as you stay hydrated and take a leisurely pace to enjoy the surroundings.

May Average Humidity in Glendora

This chart illustrates the average monthly humidity levels in Glendora, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Glendora is approximately 57%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Glendora

In Glendora in May, 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 Glendora.

Maximum UV Index Levels in Glendora for May

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

Data source: Glendora May 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 May Weather in Glendora Compares to Other Months

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

This table compares monthly weather conditions in Glendora, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	77 mm (3.0 inches)	78%	moderate
February Weather	10°C (50°F)	73 mm (2.9 inches)	82%	high
March Weather	11°C (53°F)	79 mm (3.1 inches)	75%	very high
April Weather	15°C (59°F)	25 mm (1.0 inches)	68%	very high
May Weather	17°C (62°F)	20 mm (0.8 inches)	57%	extreme
June Weather	21°C (71°F)	3 mm (0.1 inches)	52%	extreme
July Weather	25°C (77°F)	6 mm (0.2 inches)	46%	extreme
August Weather	25°C (77°F)	9 mm (0.4 inches)	39%	extreme
September Weather	23°C (73°F)	6 mm (0.2 inches)	48%	very high
October Weather	18°C (65°F)	11 mm (0.4 inches)	59%	high
November Weather	14°C (58°F)	25 mm (1.0 inches)	72%	moderate
December Weather	10°C (50°F)	79 mm (3.1 inches)	76%	moderate