May Weather in Annawan, United States

Last updated: June 24, 2025

In Annawan, United States, the average temperature in May hovers around 17°C (63°F). Be prepared for a range of weather, as temperatures can dip as low as -1°C (30°F) and soar up to 34°C (94°F). Expect 151 mm (5.9 in) of precipitation spread over 15 days, contributing to an average humidity of 78%. Whether you're planning to bask in the sun or brace for rain, this season offers a dynamic climate!

May Temperature in Annawan

In May in Annawan, the average temperature is 17°C (63°F), with maximums reaching 34°C (94°F) and minimums dropping as low as -1°C (30°F). This variation makes it an ideal time for travelers to pack both light clothing for warm days and warmer layers for chilly nights.

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

The chart illustrates May temperature patterns in Annawan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Annawan, May typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (94°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Annawan

In Annawan in May, the precipitation amount is 151 mm (5.9 in) over a period of 15 days.

May Precipitation Trends in Annawan

The chart displays monthly precipitation patterns in Annawan, 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 Annawan, May typically receives around 151 mm (5.9 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 Annawan

In Annawan in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

May Average Humidity in Annawan

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

In Annawan 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 Annawan.

Maximum UV Index Levels in Annawan for May

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

Data source: Annawan 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 Annawan Compares to Other Months

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

This table compares monthly weather conditions in Annawan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	56 mm (2.2 inches)	81%	moderate
February Weather	-3°C (27°F)	59 mm (2.3 inches)	81%	moderate
March Weather	5°C (40°F)	95 mm (3.7 inches)	81%	high
April Weather	10°C (50°F)	113 mm (4.5 inches)	82%	very high
May Weather	17°C (63°F)	151 mm (5.9 inches)	78%	very high
June Weather	23°C (73°F)	146 mm (5.7 inches)	81%	very high
July Weather	25°C (77°F)	88 mm (3.4 inches)	79%	very high
August Weather	23°C (74°F)	69 mm (2.7 inches)	77%	very high
September Weather	20°C (69°F)	111 mm (4.4 inches)	78%	very high
October Weather	12°C (55°F)	120 mm (4.7 inches)	78%	high
November Weather	4°C (39°F)	52 mm (2.0 inches)	87%	moderate
December Weather	0°C (33°F)	48 mm (1.9 inches)	84%	low