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May Weather in Delavan, United States

Last updated: June 24, 2025

In May, the average temperature in Delavan, United States hovers around 15°C (60°F), offering a mild climate ideal for outdoor activities. However, temperatures can fluctuate between a chilly -1°C (30°F) and a balmy 34°C (93°F). Expect about 136 mm (5.4 in) of precipitation spread over 14 days, contributing to an average humidity of 78%—perfect for those who appreciate a lush, vibrant environment.

May Temperature in Delavan

In May in Delavan, the average temperature is 15°C (60°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as -1°C (30°F). This diverse temperature range makes Delavan an interesting destination for travelers, offering the opportunity to enjoy both warm and cool weather experiences.

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

The chart illustrates May temperature patterns in Delavan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Delavan, May typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec222437465970757266523730
Data source: Temperature data for Delavan 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 Delavan

In Delavan in May, the precipitation amount is 136 mm (5.4 in) over a span of 14 days.

May Precipitation Trends in Delavan

The chart displays monthly precipitation patterns in Delavan, 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 Delavan, May typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec58546010513611082891051144650
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Delavan

In Delavan 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 Delavan

This chart illustrates the average monthly humidity levels in Delavan, 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 Delavan is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Delavan

In Delavan 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 Delavan.

Maximum UV Index Levels in Delavan for May

The chart shows the monthly maximum UV Index (UVI) for Delavan 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 Delavan typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Delavan 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 Delavan Compares to Other Months

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

This table compares monthly weather conditions in Delavan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (22°F)58 mm (2.3 inches)85%moderate
February Weather-5°C (24°F)54 mm (2.1 inches)85%moderate
March Weather3°C (37°F)60 mm (2.4 inches)85%high
April Weather8°C (47°F)105 mm (4.1 inches)85%very high
May Weather15°C (60°F)136 mm (5.4 inches)78%very high
June Weather21°C (71°F)110 mm (4.3 inches)80%very high
July Weather24°C (75°F)82 mm (3.2 inches)78%very high
August Weather22°C (72°F)89 mm (3.5 inches)76%very high
September Weather19°C (66°F)105 mm (4.1 inches)79%very high
October Weather11°C (52°F)113 mm (4.5 inches)83%moderate
November Weather3°C (37°F)46 mm (1.8 inches)88%moderate
December Weather-1°C (30°F)50 mm (2.0 inches)81%low

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