May Weather in Pierce, United States

Last updated: June 24, 2025

In May, the average temperature in Pierce, United States hovers around 15°C (60°F), with minimums dipping to 0°C (32°F) and maximums reaching a warm 35°C (95°F). Expect a total of 146 mm (5.7 in) of precipitation over 14 days, contributing to an average humidity level of 74%. Be prepared for a mix of weather as you explore!

May Temperature in Pierce

In May in Pierce, the average temperature is 15°C (60°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 0°C (32°F). Be sure to pack layers to accommodate the wide temperature range and enjoy all that Pierce has to offer!

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 15°C (60°F), with highs reaching up to 35°C (95°F) and lows dropping to around 0°C (32°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 146 mm (5.7 in) over a span of 14 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 146 mm (5.7 inches) of precipitation spread over approximately 14 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 15°C (60°F), this humidity feels like a warm embrace that can make outdoor activities feel slightly stifling, so travelers should be prepared to hydrate frequently and take breaks in the shade.

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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, 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	-5°C (23°F)	26 mm (1.0 inches)	77%	moderate
February Weather	-5°C (23°F)	25 mm (1.0 inches)	81%	moderate
March Weather	3°C (38°F)	83 mm (3.3 inches)	71%	high
April Weather	8°C (47°F)	71 mm (2.8 inches)	75%	very high
May Weather	15°C (60°F)	146 mm (5.7 inches)	74%	very high
June Weather	23°C (74°F)	86 mm (3.4 inches)	82%	extreme
July Weather	24°C (76°F)	82 mm (3.2 inches)	84%	very high
August Weather	23°C (73°F)	87 mm (3.4 inches)	82%	very high
September Weather	19°C (67°F)	73 mm (2.9 inches)	75%	very high
October Weather	10°C (50°F)	79 mm (3.1 inches)	72%	high
November Weather	3°C (38°F)	24 mm (0.9 inches)	81%	moderate
December Weather	-2°C (29°F)	44 mm (1.8 inches)	79%	low