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May Weather in Preston, United States

Last updated: June 24, 2025

In May, the average temperature in Preston, United States hovers around 15°C (59°F). Be prepared for a temperature range that can dip to a chilly -1°C (30°F) or soar to a scorching 35°C (94°F). Expect about 147 mm (5.8 in) of precipitation spread over 14 days, with an average humidity level of 75%.

May Temperature in Preston

In May in Preston, the average temperature is 15°C (59°F), with maximums reaching up to 35°C (94°F) and minimums dropping as low as -1°C (30°F). Be prepared for a wide range of temperatures while traveling, so pack accordingly!

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

The chart illustrates May temperature patterns in Preston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Preston, May typically has an average temperature of 15°C (59°F), with highs reaching up to 35°C (94°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec181934445970737064493426
Data source: Temperature data for Preston 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 Preston

In Preston in May, the total precipitation amount is 147 mm (5.8 in) over the course of 14 days.

May Precipitation Trends in Preston

The chart displays monthly precipitation patterns in Preston, 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 Preston, May typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec364960851471401051051191235242
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Preston

In Preston in May, humidity is 75%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making it feel more oppressive than refreshing, which can be a challenge for travelers seeking comfort while exploring the area.

May Average Humidity in Preston

This chart illustrates the average monthly humidity levels in Preston, 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 Preston is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Preston

In Preston 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 Preston.

Maximum UV Index Levels in Preston for May

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

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

This table compares monthly weather conditions in Preston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)36 mm (1.4 inches)84%moderate
February Weather-7°C (19°F)49 mm (1.9 inches)85%moderate
March Weather1°C (35°F)60 mm (2.4 inches)84%moderate
April Weather7°C (44°F)85 mm (3.3 inches)83%very high
May Weather15°C (59°F)147 mm (5.8 inches)75%very high
June Weather21°C (71°F)140 mm (5.5 inches)79%very high
July Weather23°C (74°F)105 mm (4.1 inches)75%very high
August Weather21°C (70°F)105 mm (4.1 inches)69%very high
September Weather18°C (64°F)119 mm (4.7 inches)74%very high
October Weather9°C (49°F)123 mm (4.9 inches)79%moderate
November Weather1°C (34°F)52 mm (2.1 inches)88%moderate
December Weather-3°C (26°F)41 mm (1.6 inches)82%low

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