May Weather in Mankato, United States

Last updated: June 24, 2025

In Mankato, United States, the average temperature in May hovers around 15°C (60°F), creating a pleasant backdrop for any activity. Expect minimums as cool as 1°C (34°F) and maximums that can soar to 36°C (97°F), offering a diverse range of weather experiences. During this month, the area typically receives 130 mm (5.1 in) of rain spread over 13 days, contributing to a lush environment. With an average humidity of 78%, be prepared for a bit of mugginess, but also for the beauty that such conditions can inspire!

May Temperature in Mankato

In May in Mankato, the average temperature is 15°C (60°F). Maximum can reach 36°C (97°F) and minimum can be as low as 1°C (34°F). This makes it a great time to pack for both warm days and cool nights while exploring the diverse experiences that Mankato has to offer.

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

The chart illustrates May temperature patterns in Mankato, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mankato, May typically has an average temperature of 15°C (60°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec171633446072747165493424
Data source: Temperature data for Mankato generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Mankato

In Mankato in May, the precipitation amount is 130 mm (5.1 in) spread over 13 days.

May Precipitation Trends in Mankato

The chart displays monthly precipitation patterns in Mankato, 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 Mankato, May typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec32356788130106121129142913343
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Mankato

In Mankato in May, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

May Average Humidity in Mankato

This chart illustrates the average monthly humidity levels in Mankato, 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 Mankato is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mankato

In Mankato 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 Mankato.

Maximum UV Index Levels in Mankato for May

The chart shows the monthly maximum UV Index (UVI) for Mankato 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 Mankato typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Mankato 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 Mankato Compares to Other Months

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

This table compares monthly weather conditions in Mankato, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)32 mm (1.3 inches)87%moderate
February Weather-9°C (16°F)35 mm (1.4 inches)90%moderate
March Weather1°C (34°F)67 mm (2.6 inches)85%moderate
April Weather7°C (44°F)88 mm (3.5 inches)84%very high
May Weather15°C (60°F)130 mm (5.1 inches)78%very high
June Weather22°C (72°F)106 mm (4.2 inches)80%very high
July Weather24°C (75°F)121 mm (4.8 inches)81%very high
August Weather22°C (71°F)128 mm (5.1 inches)81%very high
September Weather18°C (65°F)142 mm (5.6 inches)81%very high
October Weather9°C (49°F)91 mm (3.6 inches)84%moderate
November Weather1°C (34°F)33 mm (1.3 inches)88%moderate
December Weather-4°C (25°F)43 mm (1.7 inches)84%low

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