May Weather in Three Rivers, United States

Last updated: June 24, 2025

In Three Rivers, United States, the average temperature in May hovers around 9°C (49°F). While you might experience chilly lows of -5°C (23°F), it's not uncommon to see the mercury soar to a balmy 30°C (87°F). Rainfall during this month averages 41 mm (1.6 in) spread across about 9 days, and the average humidity sits at a comfortable 79%. Prepare for a mix of weather as you explore!

May Temperature in Three Rivers

In May in Three Rivers, the average temperature is 9°C (49°F). Maximums can reach 30°C (87°F), while minimums can drop as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their stay.

May Weather in Three Rivers: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Three Rivers, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Three Rivers, May typically has an average temperature of 9°C (49°F), with highs reaching up to 30°C (87°F) and lows dropping to around -5°C (23°F).

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

May Precipitation in Three Rivers

In Three Rivers in May, the precipitation amount is 41 mm (1.6 in) spread over 9 days.

May Precipitation Trends in Three Rivers

The chart displays monthly precipitation patterns in Three Rivers, 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 Three Rivers, May typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 9 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 Three Rivers

In Three Rivers in May humidity is 79%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and carrying a light raincoat for a comfortable travel experience.

May Average Humidity in Three Rivers

This chart illustrates the average monthly humidity levels in Three Rivers, 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 Three Rivers is approximately 79%, 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 Three Rivers

In Three Rivers 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 Three Rivers.

Maximum UV Index Levels in Three Rivers for May

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

Data source: Three Rivers 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 Three Rivers Compares to Other Months

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

This table compares monthly weather conditions in Three Rivers, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	87 mm (3.4 inches)	87%	moderate
February Weather	-1°C (31°F)	104 mm (4.1 inches)	87%	moderate
March Weather	2°C (36°F)	65 mm (2.6 inches)	87%	high
April Weather	5°C (41°F)	61 mm (2.4 inches)	86%	very high
May Weather	9°C (49°F)	41 mm (1.6 inches)	79%	extreme
June Weather	14°C (58°F)	24 mm (0.9 inches)	80%	extreme
July Weather	19°C (66°F)	8 mm (0.3 inches)	77%	very high
August Weather	18°C (66°F)	10 mm (0.4 inches)	60%	very high
September Weather	13°C (56°F)	32 mm (1.3 inches)	57%	very high
October Weather	7°C (44°F)	43 mm (1.7 inches)	76%	high
November Weather	2°C (36°F)	72 mm (2.8 inches)	87%	moderate
December Weather	-1°C (31°F)	82 mm (3.2 inches)	88%	low