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May Weather in Unionville, United States

Last updated: June 24, 2025

In May, the average temperature in Unionville, United States hovers around 21°C (70°F), with a minimum of 3°C (37°F) and a pleasant maximum of 33°C (92°F). However, don’t forget your umbrella, as the area experiences 115 mm (4.5 in) of precipitation over approximately 12 days. The humidity during this month is relatively high, averaging 83%, so be prepared for some sticky moments!

May Temperature in Unionville

In May in Unionville, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (92°F) and minimums dipping as low as 3°C (37°F). This moderate climate makes it an ideal time for travelers to explore the great outdoors and enjoy various activities.

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

The chart illustrates May temperature patterns in Unionville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unionville, May typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec424654607076797874644946
Data source: Temperature data for Unionville 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 Unionville

In Unionville in May, the total precipitation amount is 115 mm (4.5 in) over a span of 12 days.

May Precipitation Trends in Unionville

The chart displays monthly precipitation patterns in Unionville, 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 Unionville, May typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec11518818015611513814311511712276147
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Unionville

In Unionville in May humidity is 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

May Average Humidity in Unionville

This chart illustrates the average monthly humidity levels in Unionville, 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 Unionville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Unionville

In Unionville 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 Unionville.

Maximum UV Index Levels in Unionville for May

The chart shows the monthly maximum UV Index (UVI) for Unionville 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 Unionville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810101111109753
Data source: Unionville 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 Unionville Compares to Other Months

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

This table compares monthly weather conditions in Unionville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)115 mm (4.5 inches)87%moderate
February Weather8°C (47°F)188 mm (7.4 inches)87%high
March Weather12°C (54°F)180 mm (7.1 inches)85%very high
April Weather15°C (60°F)156 mm (6.1 inches)82%very high
May Weather21°C (70°F)115 mm (4.5 inches)83%very high
June Weather25°C (76°F)138 mm (5.4 inches)82%extreme
July Weather26°C (80°F)143 mm (5.6 inches)78%extreme
August Weather25°C (78°F)115 mm (4.5 inches)67%very high
September Weather23°C (74°F)117 mm (4.6 inches)64%very high
October Weather18°C (64°F)122 mm (4.8 inches)74%high
November Weather10°C (49°F)76 mm (3.0 inches)87%moderate
December Weather8°C (46°F)147 mm (5.8 inches)88%moderate

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