May Weather in Middletown, United States

Last updated: June 24, 2025

In May, the average temperature in Middletown, United States is a comfortable 18°C (66°F), with daily variations ranging from a chilly 4°C (39°F) to a warm 33°C (92°F). Visitors can expect around 133 mm (5.2 in) of precipitation over 12 days, paired with a relative humidity of 78%. Be prepared for a mix of weather as you explore this vibrant locale!

May Temperature in Middletown

In May in Middletown, the average temperature is 18°C (66°F), with maximums reaching 33°C (92°F) and minimums dipping as low as 4°C (39°F). Be prepared for a wide range of temperatures during your travels, making it essential to pack both light and warm clothing.

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

The chart illustrates May temperature patterns in Middletown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Middletown, May typically has an average temperature of 18°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Middletown

In Middletown in May, the precipitation amount is 133 mm (5.2 in) spread over 12 days.

May Precipitation Trends in Middletown

The chart displays monthly precipitation patterns in Middletown, 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 Middletown, May typically receives around 133 mm (5.2 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 Middletown

In Middletown in May humidity is 78%. With an average temperature of 18°C (66°F), this humidity feels like a warm blanket enveloping you, making it both refreshing and slightly stifling for traveling.

May Average Humidity in Middletown

This chart illustrates the average monthly humidity levels in Middletown, 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 Middletown 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 Middletown

In Middletown 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 Middletown.

Maximum UV Index Levels in Middletown for May

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

Data source: Middletown 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 Middletown Compares to Other Months

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

This table compares monthly weather conditions in Middletown, 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 (37°F)	60 mm (2.4 inches)	84%	moderate
February Weather	4°C (40°F)	98 mm (3.8 inches)	83%	moderate
March Weather	7°C (46°F)	100 mm (4.0 inches)	83%	high
April Weather	13°C (56°F)	101 mm (4.0 inches)	81%	very high
May Weather	18°C (66°F)	133 mm (5.2 inches)	78%	very high
June Weather	24°C (75°F)	102 mm (4.0 inches)	79%	very high
July Weather	27°C (80°F)	132 mm (5.2 inches)	74%	very high
August Weather	25°C (78°F)	142 mm (5.6 inches)	72%	very high
September Weather	22°C (72°F)	95 mm (3.8 inches)	75%	very high
October Weather	17°C (62°F)	107 mm (4.2 inches)	81%	high
November Weather	9°C (48°F)	82 mm (3.2 inches)	85%	moderate
December Weather	5°C (41°F)	98 mm (3.9 inches)	84%	moderate