May Weather in Harvard, United States

Last updated: June 24, 2025

In May, the average temperature in Harvard, United States hovers around 17°C (62°F), with a minimum dipping to 1°C (34°F) and a maximum soaring to 36°C (97°F). 🌡️ Expect a precipitation total of 172 mm (6.8 in) spread across 14 days, and enjoy the high humidity levels at 80% that keep the atmosphere pleasantly moist. ☔

May Temperature in Harvard

In May in Harvard, the average temperature is 17°C (62°F). Maximum temperatures can reach 36°C (97°F), while minimums can dip as low as 1°C (34°F). Be prepared for both warm days and cool nights when traveling to Harvard during this month.

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

The chart illustrates May temperature patterns in Harvard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harvard, May typically has an average temperature of 17°C (62°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (34°F).

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

May Precipitation in Harvard

In Harvard in May, the total precipitation amount is 172 mm (6.8 in) spread over a duration of 14 days.

May Precipitation Trends in Harvard

The chart displays monthly precipitation patterns in Harvard, 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 Harvard, May typically receives around 172 mm (6.8 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 Harvard

In Harvard in May, humidity is 80%. With an average temperature of 17°C (62°F), this humidity feels like a heavy blanket wrapping around you, making travel sticky and uncomfortable, and often leaving you longing for a refreshing breeze.

May Average Humidity in Harvard

This chart illustrates the average monthly humidity levels in Harvard, 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 Harvard is approximately 80%, 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 Harvard

In Harvard 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 Harvard.

Maximum UV Index Levels in Harvard for May

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

Data source: Harvard 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 Harvard Compares to Other Months

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

This table compares monthly weather conditions in Harvard, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	29 mm (1.2 inches)	73%	moderate
February Weather	-3°C (27°F)	22 mm (0.9 inches)	81%	moderate
March Weather	5°C (42°F)	89 mm (3.5 inches)	69%	high
April Weather	10°C (51°F)	49 mm (1.9 inches)	71%	very high
May Weather	17°C (62°F)	172 mm (6.8 inches)	80%	very high
June Weather	24°C (76°F)	91 mm (3.6 inches)	83%	extreme
July Weather	26°C (78°F)	68 mm (2.7 inches)	84%	extreme
August Weather	24°C (75°F)	84 mm (3.3 inches)	84%	very high
September Weather	21°C (70°F)	67 mm (2.6 inches)	77%	very high
October Weather	11°C (53°F)	84 mm (3.3 inches)	72%	high
November Weather	5°C (41°F)	22 mm (0.9 inches)	80%	moderate
December Weather	0°C (33°F)	41 mm (1.6 inches)	79%	moderate