May Weather in Havre de Grace, United States

Last updated: June 24, 2025

In May, the average temperature in Havre de Grace, United States hovers around 18°C (65°F), with a minimum dipping to 4°C (39°F) and a maximum soaring to 32°C (90°F). Expect 134 mm (5.3 in) of precipitation spread over 12 days and an average humidity level of 78%, setting the stage for a pleasantly varied climate.

May Temperature in Havre de Grace

In May in Havre de Grace, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 4°C (39°F). Be prepared for a range of temperatures, making it ideal for layering your travel outfits.

May Weather in Havre de Grace: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Havre de Grace, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Havre de Grace, May typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Havre de Grace

In Havre de Grace in May, the precipitation amount is 134 mm (5.3 in) over a period of 12 days.

May Precipitation Trends in Havre de Grace

The chart displays monthly precipitation patterns in Havre de Grace, 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 Havre de Grace, May typically receives around 134 mm (5.3 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 Havre de Grace

In Havre de Grace in May, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

May Average Humidity in Havre de Grace

This chart illustrates the average monthly humidity levels in Havre de Grace, 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 Havre de Grace is approximately 78%, 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 Havre de Grace

In Havre de Grace 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 Havre de Grace.

Maximum UV Index Levels in Havre de Grace for May

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

Data source: Havre de Grace 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 Havre de Grace Compares to Other Months

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

This table compares monthly weather conditions in Havre de Grace, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	60 mm (2.4 inches)	84%	moderate
February Weather	4°C (40°F)	97 mm (3.8 inches)	83%	moderate
March Weather	7°C (45°F)	97 mm (3.8 inches)	83%	high
April Weather	13°C (56°F)	100 mm (3.9 inches)	81%	very high
May Weather	18°C (65°F)	134 mm (5.3 inches)	78%	very high
June Weather	24°C (75°F)	96 mm (3.8 inches)	79%	very high
July Weather	27°C (80°F)	129 mm (5.1 inches)	74%	very high
August Weather	25°C (78°F)	133 mm (5.2 inches)	72%	very high
September Weather	22°C (72°F)	94 mm (3.7 inches)	75%	very high
October Weather	17°C (62°F)	104 mm (4.1 inches)	81%	high
November Weather	9°C (48°F)	81 mm (3.2 inches)	85%	moderate
December Weather	5°C (41°F)	98 mm (3.9 inches)	84%	moderate