May Weather in Calmar, United States

Last updated: June 24, 2025

In May, the average temperature in Calmar, United States hovers around 15°C (59°F). While you might experience a chilly minimum of -2°C (29°F), warm spells can bring temperatures up to a sweltering 33°C (92°F). Expect about 155 mm (6.1 in) of precipitation spread over 15 days, accompanied by a moderate humidity level of 75%. Stay prepared for a mix of weather!

May Temperature in Calmar

In May in Calmar, the average temperature is 15°C (59°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -2°C (29°F). This wide range of temperatures makes Calmar an exciting destination for travelers looking to experience diverse weather conditions.

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

The chart illustrates May temperature patterns in Calmar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Calmar, May typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (92°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Calmar

In Calmar in May, the precipitation amount is 155 mm (6.1 in) over a period of 15 days.

May Precipitation Trends in Calmar

The chart displays monthly precipitation patterns in Calmar, 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 Calmar, May typically receives around 155 mm (6.1 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 Calmar

In Calmar in May, humidity is 75%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making it feel more oppressive than refreshing, which can be a challenge for travelers seeking comfort while exploring the area.

May Average Humidity in Calmar

This chart illustrates the average monthly humidity levels in Calmar, 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 Calmar is approximately 75%, 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 Calmar

In Calmar 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 Calmar.

Maximum UV Index Levels in Calmar for May

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

Data source: Calmar 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 Calmar Compares to Other Months

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

This table compares monthly weather conditions in Calmar, 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 (20°F)	39 mm (1.5 inches)	84%	moderate
February Weather	-7°C (20°F)	52 mm (2.0 inches)	85%	moderate
March Weather	2°C (35°F)	64 mm (2.5 inches)	84%	moderate
April Weather	7°C (45°F)	80 mm (3.2 inches)	83%	very high
May Weather	15°C (59°F)	155 mm (6.1 inches)	75%	very high
June Weather	22°C (71°F)	130 mm (5.1 inches)	79%	very high
July Weather	23°C (74°F)	106 mm (4.2 inches)	75%	very high
August Weather	21°C (70°F)	109 mm (4.3 inches)	69%	very high
September Weather	18°C (65°F)	123 mm (4.8 inches)	74%	very high
October Weather	10°C (50°F)	133 mm (5.2 inches)	79%	moderate
November Weather	2°C (35°F)	53 mm (2.1 inches)	88%	moderate
December Weather	-3°C (28°F)	38 mm (1.5 inches)	82%	low