Frederick weather in May 2026

Expect daytime maximum temperatures of 23°C in Frederick, Maryland in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 103 mm of rainfall in the month.

  • 23°C maximum daytime temperature in May in Frederick23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in Frederick12
    12 days with some rainfall
  • 10°C minimum night-time temperature in May in Frederick10
    10°C min night temperature
  • 14 hours of daylight per day in May in Frederick14
    14 hours of daylight per day
  • No heat & humidity in May in Frederick0
    No heat & humidity
  • 103 mm monthly rainfall in May in Frederick103
    103 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Frederick8
    8 (Very High) UV index

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The May weather guide for Maryland (Frederick) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Frederick in May?

Daytime temperatures usually reach 24°C in Frederick in May, falling to 13°C at night.

How sunny is it in Frederick in May?

There are normally 8 hours of bright sunshine each day in Frederick in May - that's 58% of daylight hours.

How warm is the sea around Frederick in May?

The average sea temperature around Frederick in May is 12°C.

Does it rain in Frederick in May?

There are usually 11 days with some rain in Frederick in May and the average monthly rainfall is 97mm.

Frederick May sunrise & sunset times

Browse the sunrise and sunset times for Frederick in May 2026. Select a month to view Frederick sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:11 19:03
Saturday, 16th May 2026 04:55 19:18
Sunday, 31st May 2026 04:45 19:30

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