May Weather in Erie, United States

Last updated: June 24, 2025

In May, the average temperature in Erie, United States hovers around 20°C (68°F), making it a pleasant time to explore. However, prepare for a range of temperatures, with minimums dipping to 4°C (40°F) and maximums soaring to 34°C (93°F). This month also brings 230 mm (9.1 in) of precipitation spread over 15 days, resulting in an average humidity of 83%—perfect for lush landscapes but a little sticky for outdoor activities!

May Temperature in Erie

In May in Erie, the average temperature is 20°C (68°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 4°C (40°F). This variety in temperature makes it a great time for travelers to enjoy both outdoor activities and cozy indoor experiences.

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

The chart illustrates May temperature patterns in Erie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Erie, May typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).

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

May Precipitation in Erie

In Erie in May, the total precipitation amount is 230 mm (9.1 in) over the course of 15 days.

May Precipitation Trends in Erie

The chart displays monthly precipitation patterns in Erie, 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 Erie, May typically receives around 230 mm (9.1 inches) of precipitation spread over approximately 15 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 Erie

In Erie in May humidity is 83%. With an average temperature of 20°C (68°F), this humidity feels like a warm, heavy blanket enveloping you, making it feel much warmer than it is. Traveling in such conditions can be quite taxing, as the air feels thick, often leading to a sense of exhaustion and requiring frequent breaks to seek shade or hydration.

May Average Humidity in Erie

This chart illustrates the average monthly humidity levels in Erie, 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 Erie is approximately 83%, 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 Erie

In Erie 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 Erie.

Maximum UV Index Levels in Erie for May

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

Data source: Erie 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 Erie Compares to Other Months

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

This table compares monthly weather conditions in Erie, 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)	62 mm (2.4 inches)	77%	moderate
February Weather	3°C (37°F)	58 mm (2.3 inches)	76%	moderate
March Weather	10°C (50°F)	113 mm (4.4 inches)	71%	high
April Weather	14°C (57°F)	114 mm (4.5 inches)	73%	very high
May Weather	20°C (68°F)	230 mm (9.1 inches)	83%	very high
June Weather	26°C (78°F)	108 mm (4.2 inches)	83%	extreme
July Weather	27°C (81°F)	104 mm (4.1 inches)	81%	extreme
August Weather	26°C (79°F)	126 mm (5.0 inches)	73%	very high
September Weather	23°C (74°F)	82 mm (3.2 inches)	67%	very high
October Weather	15°C (60°F)	133 mm (5.2 inches)	72%	high
November Weather	8°C (47°F)	43 mm (1.7 inches)	82%	moderate
December Weather	5°C (42°F)	35 mm (1.4 inches)	85%	moderate