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May Weather in Millersville, United States

Last updated: June 24, 2025

In May, the average temperature in Millersville, United States is a pleasant 21°C (70°F). Expect a range with minimums dipping to 4°C (40°F) and maximums soaring up to 34°C (93°F). Be prepared for some rain, as the area experiences about 122 mm (4.8 in) of precipitation over approximately 13 days. With an average humidity level of 82%, you may want to keep cool and hydrated while enjoying your time in this vibrant location!

May Temperature in Millersville

In May in Millersville, the average temperature is 21°C (70°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 4°C (40°F). This makes it a great time to visit for those who enjoy mild weather with the potential for warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Millersville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millersville, May typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404552597077807874634845
Data source: Temperature data for Millersville 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 Millersville

In Millersville in May, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.

May Precipitation Trends in Millersville

The chart displays monthly precipitation patterns in Millersville, 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 Millersville, May typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10218016415012213513813213014182145
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Millersville

In Millersville in May, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

May Average Humidity in Millersville

This chart illustrates the average monthly humidity levels in Millersville, 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 Millersville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Millersville

In Millersville 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 Millersville.

Maximum UV Index Levels in Millersville for May

The chart shows the monthly maximum UV Index (UVI) for Millersville 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 Millersville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Millersville 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 Millersville Compares to Other Months

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

This table compares monthly weather conditions in Millersville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)102 mm (4.0 inches)87%moderate
February Weather7°C (45°F)180 mm (7.1 inches)86%high
March Weather11°C (52°F)164 mm (6.4 inches)86%high
April Weather15°C (59°F)150 mm (5.9 inches)82%very high
May Weather21°C (70°F)122 mm (4.8 inches)82%very high
June Weather25°C (77°F)135 mm (5.3 inches)83%extreme
July Weather27°C (80°F)138 mm (5.4 inches)80%extreme
August Weather26°C (78°F)131 mm (5.2 inches)74%very high
September Weather23°C (74°F)130 mm (5.1 inches)71%very high
October Weather17°C (63°F)141 mm (5.5 inches)78%high
November Weather9°C (48°F)82 mm (3.2 inches)88%moderate
December Weather7°C (45°F)145 mm (5.7 inches)88%moderate

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