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May Weather in Boyertown, United States

Last updated: June 24, 2025

In Boyertown, United States, the average temperature in May is a comfortable 17°C (63°F). However, temperatures can range significantly, with a minimum of 1°C (33°F) and a maximum of 34°C (93°F). Expect a precipitation amount of 136 mm (5.3 in) over approximately 14 days, alongside an average humidity of 75%.

May Temperature in Boyertown

In May in Boyertown, the average temperature is 17°C (63°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 1°C (33°F). This wide range of temperatures makes Boyertown an ideal destination for travelers who enjoy both warm and cooler weather.

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

The chart illustrates May temperature patterns in Boyertown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boyertown, May typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec343742536372787569594437
Data source: Temperature data for Boyertown 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 Boyertown

In Boyertown in May, the total precipitation amount is 136 mm (5.3 in) spread over 14 days.

May Precipitation Trends in Boyertown

The chart displays monthly precipitation patterns in Boyertown, 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 Boyertown, May typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec671051031031361091411511001018799
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Boyertown

In Boyertown in May, humidity is 75%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities a bit sticky and requiring frequent breaks to stay refreshed during your travels.

May Average Humidity in Boyertown

This chart illustrates the average monthly humidity levels in Boyertown, 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 Boyertown is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Boyertown

In Boyertown 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 Boyertown.

Maximum UV Index Levels in Boyertown for May

The chart shows the monthly maximum UV Index (UVI) for Boyertown 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 Boyertown typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Boyertown 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 Boyertown Compares to Other Months

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

This table compares monthly weather conditions in Boyertown, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)67 mm (2.6 inches)87%moderate
February Weather3°C (37°F)105 mm (4.1 inches)85%moderate
March Weather6°C (42°F)103 mm (4.1 inches)85%high
April Weather12°C (53°F)103 mm (4.0 inches)83%very high
May Weather17°C (63°F)136 mm (5.3 inches)75%very high
June Weather22°C (72°F)109 mm (4.3 inches)73%very high
July Weather25°C (78°F)141 mm (5.5 inches)65%very high
August Weather24°C (75°F)151 mm (5.9 inches)62%very high
September Weather21°C (70°F)100 mm (3.9 inches)66%very high
October Weather15°C (59°F)101 mm (4.0 inches)79%high
November Weather7°C (45°F)87 mm (3.4 inches)87%moderate
December Weather3°C (38°F)99 mm (3.9 inches)85%low

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