May Weather in Hartland, United States

Last updated: June 24, 2025

In May, the average temperature in Hartland, United States hovers around 12°C (54°F). However, expect a wide range, with minimums plummeting to -2°C (29°F) and maximums soaring up to 33°C (91°F). Rain is a possibility, bringing 95 mm (3.7 in) of precipitation over approximately 10 days, and the air remains quite humid, with an average humidity of 76%.

May Temperature in Hartland

In May in Hartland, the average temperature is 12°C (54°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as -2°C (29°F). This diverse climate makes Hartland an exciting destination for travelers seeking both warmth and cooler experiences.

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

The chart illustrates May temperature patterns in Hartland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartland, May typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Hartland

In Hartland in May, the total precipitation amount is 95 mm (3.7 in) over the course of 10 days.

May Precipitation Trends in Hartland

The chart displays monthly precipitation patterns in Hartland, 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 Hartland, May typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 10 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 Hartland

In Hartland in May, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

May Average Humidity in Hartland

This chart illustrates the average monthly humidity levels in Hartland, 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 Hartland is approximately 76%, 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 Hartland

In Hartland 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 Hartland.

Maximum UV Index Levels in Hartland for May

The chart shows the monthly maximum UV Index (UVI) for Hartland 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 Hartland typically reaches 9, which falls under the very high exposure category.

Data source: Hartland 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 Hartland Compares to Other Months

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

This table compares monthly weather conditions in Hartland, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	88 mm (3.5 inches)	88%	low
February Weather	-6°C (21°F)	83 mm (3.3 inches)	88%	moderate
March Weather	-2°C (29°F)	75 mm (2.9 inches)	85%	moderate
April Weather	5°C (42°F)	126 mm (5.0 inches)	81%	very high
May Weather	12°C (54°F)	95 mm (3.7 inches)	76%	very high
June Weather	17°C (64°F)	85 mm (3.4 inches)	74%	very high
July Weather	20°C (69°F)	103 mm (4.1 inches)	74%	very high
August Weather	20°C (68°F)	81 mm (3.2 inches)	74%	very high
September Weather	16°C (60°F)	74 mm (2.9 inches)	77%	high
October Weather	9°C (49°F)	129 mm (5.1 inches)	82%	moderate
November Weather	1°C (34°F)	115 mm (4.5 inches)	85%	moderate
December Weather	-5°C (24°F)	120 mm (4.7 inches)	84%	low