May Weather in Pierce, United States

Last updated: June 24, 2025

In May, the average temperature in Pierce, United States hovers around 13°C (56°F). However, feel the range of extremes as temperatures can dip to a chilly -2°C (28°F) or soar to a balmy 31°C (88°F). Expect 100 mm (3.9 in) of precipitation spread over 12 days, contributing to an average humidity of 74%. Stay prepared for a weather rollercoaster!

May Temperature in Pierce

In May in Pierce, the average temperature is 13°C (56°F). The maximum can reach 31°C (88°F), while the minimum can be as low as -2°C (28°F). This variety in temperatures makes it essential for travelers to pack layers to stay comfortable in both warm and cool conditions.

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

The chart illustrates May temperature patterns in Pierce, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pierce, May typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (28°F).

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

May Precipitation in Pierce

In Pierce in May, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.

May Precipitation Trends in Pierce

The chart displays monthly precipitation patterns in Pierce, 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 Pierce, May typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 12 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 Pierce

In Pierce in May humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

May Average Humidity in Pierce

This chart illustrates the average monthly humidity levels in Pierce, 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 Pierce is approximately 74%, 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 Pierce

In Pierce in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Pierce.

Maximum UV Index Levels in Pierce for May

The chart shows the monthly maximum UV Index (UVI) for Pierce 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 Pierce typically reaches 10, which falls under the very high exposure category.

Data source: Pierce 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 Pierce Compares to Other Months

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

This table compares monthly weather conditions in Pierce, 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 (30°F)	11 mm (0.4 inches)	72%	moderate
February Weather	-2°C (29°F)	15 mm (0.6 inches)	76%	moderate
March Weather	4°C (40°F)	46 mm (1.8 inches)	61%	high
April Weather	8°C (47°F)	39 mm (1.5 inches)	60%	very high
May Weather	13°C (56°F)	100 mm (3.9 inches)	74%	very high
June Weather	20°C (69°F)	39 mm (1.5 inches)	82%	extreme
July Weather	24°C (75°F)	32 mm (1.3 inches)	82%	extreme
August Weather	22°C (73°F)	31 mm (1.2 inches)	84%	very high
September Weather	19°C (66°F)	16 mm (0.6 inches)	75%	very high
October Weather	9°C (48°F)	27 mm (1.1 inches)	73%	high
November Weather	4°C (40°F)	18 mm (0.7 inches)	74%	moderate
December Weather	0°C (33°F)	12 mm (0.5 inches)	77%	moderate