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May Weather in Scranton, United States

Last updated: June 24, 2025

In May, the average temperature in Scranton, United States hovers around 23°C (74°F), making it a pleasant time to visit. However, temperatures can range from a cool 5°C (42°F) to a scorching 37°C (100°F). Expect about 108 mm (4.3 in) of precipitation spread across 9 days, contributing to an average humidity level of 78%.

May Temperature in Scranton

In May in Scranton, the average temperature is 23°C (74°F). Maximum temperatures can reach 37°C (100°F), while minimums can drop as low as 5°C (42°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates May temperature patterns in Scranton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Scranton, May typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (100°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec485457657478818077695551
Data source: Temperature data for Scranton 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 Scranton

In Scranton in May, the precipitation amount is 108 mm (4.3 in) spread over 9 days.

May Precipitation Trends in Scranton

The chart displays monthly precipitation patterns in Scranton, 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 Scranton, May typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec749170911081361521621495376136
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Scranton

In Scranton in May humidity is 78%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace, making travel somewhat stifling and prompting frequent breaks to hydrate and seek shade.

May Average Humidity in Scranton

This chart illustrates the average monthly humidity levels in Scranton, 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 Scranton is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%79%78%78%78%82%81%81%78%82%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Scranton

In Scranton in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Scranton.

Maximum UV Index Levels in Scranton for May

The chart shows the monthly maximum UV Index (UVI) for Scranton 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 Scranton typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Scranton 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 Scranton Compares to Other Months

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

This table compares monthly weather conditions in Scranton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)74 mm (2.9 inches)83%moderate
February Weather12°C (54°F)91 mm (3.6 inches)79%high
March Weather14°C (58°F)70 mm (2.7 inches)79%very high
April Weather18°C (65°F)91 mm (3.6 inches)78%very high
May Weather23°C (74°F)108 mm (4.3 inches)78%extreme
June Weather26°C (78°F)136 mm (5.4 inches)78%extreme
July Weather27°C (81°F)152 mm (6.0 inches)82%extreme
August Weather27°C (81°F)162 mm (6.4 inches)81%very high
September Weather25°C (77°F)149 mm (5.9 inches)81%very high
October Weather20°C (69°F)53 mm (2.1 inches)78%very high
November Weather13°C (55°F)76 mm (3.0 inches)82%high
December Weather10°C (51°F)136 mm (5.3 inches)84%moderate

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