May Weather in Jamestown, United States

Last updated: June 24, 2025

In May, the average temperature in Jamestown, United States hovers around 17°C (63°F). Visitors can expect a range between a minimum of 3°C (37°F) and a maximum of 35°C (94°F). Rainfall is generally mild, with an average precipitation of 49 mm (1.9 in) spread over 5 days. Keep in mind the average humidity of 71%, which adds a touch of moisture to the air!

May Temperature in Jamestown

In May in Jamestown, the average temperature is 17°C (63°F). Maximums can reach 35°C (94°F), and minimums can be as low as 3°C (37°F). Be sure to pack layers to accommodate the varying temperatures during your travels.

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

The chart illustrates May temperature patterns in Jamestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jamestown, May typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (94°F) and lows dropping to around 3°C (37°F).

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

May Precipitation in Jamestown

In Jamestown in May, the precipitation amount is 49 mm (1.9 in) spread over a period of 5 days.

May Precipitation Trends in Jamestown

The chart displays monthly precipitation patterns in Jamestown, 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 Jamestown, May typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 5 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 Jamestown

In Jamestown in May, humidity is 71%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet a bit sticky, so travelers should stay hydrated and take breaks in the shade.

May Average Humidity in Jamestown

This chart illustrates the average monthly humidity levels in Jamestown, 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 Jamestown is approximately 71%, 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 Jamestown

In Jamestown 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 Jamestown.

Maximum UV Index Levels in Jamestown for May

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

Data source: Jamestown 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 Jamestown Compares to Other Months

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

This table compares monthly weather conditions in Jamestown, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	183 mm (7.2 inches)	82%	moderate
February Weather	8°C (47°F)	180 mm (7.1 inches)	84%	moderate
March Weather	10°C (51°F)	197 mm (7.7 inches)	82%	very high
April Weather	14°C (57°F)	83 mm (3.3 inches)	78%	very high
May Weather	17°C (63°F)	49 mm (1.9 inches)	71%	extreme
June Weather	22°C (73°F)	4 mm (0.1 inches)	64%	extreme
July Weather	26°C (79°F)	0 mm (0.0 inches)	58%	extreme
August Weather	25°C (78°F)	0 mm (0.0 inches)	54%	very high
September Weather	22°C (72°F)	4 mm (0.2 inches)	55%	very high
October Weather	16°C (62°F)	44 mm (1.7 inches)	62%	high
November Weather	11°C (52°F)	89 mm (3.5 inches)	78%	moderate
December Weather	8°C (46°F)	148 mm (5.8 inches)	80%	moderate