Frederick, United States — Weather in May 2027

Climate Overview

Frederick, United States in May has warm conditions, with highs averaging 22.9°C (73°F). Rain falls on about 14 days this month. Temperatures drop noticeably between day and night.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 22°C (72°F) at the start to 26°C (78°F) by month's end.

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

Expect around 9.0h of sunshine at the start of May, increasing to 9.7h by the end.

The warmest days tend to fall around the 27th, averaging 25.7°C (78°F).

Compared to April, this month is about 4°C warmer with 4 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

23°C / 13°C

Feels Like

23°C / 12°C

Rain

14 days · 119 mm

Sunshine

9.2h / day

Humidity

74% — Humid

Wind

14 km/h

Wind Direction

SW (216°)

Gusts

36 km/h

Daylight

14.4 h

Cloud Cover

68%

Clear Sky Days

2.5

UV Index

6.3 — High

Dew Point

13°C — Comfortable

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:57

Daylight 14.3h

Sunset 20:17

What to Expect

Daytime temperatures around 23°C (73°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

Recent yearly records for May have stayed close to the long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	5°C / -2°C	1°C / -7°C	9days (81 mm) Wet	6h Fair	68% Muggy	2.8 Moderate	Poor	View Details
February	9°C / 0°C	5°C / -5°C	10days (85 mm) Wet	6.8h Fair	68% Muggy	3.5 Moderate	Poor	View Details
March	13°C / 3°C	10°C / -1°C	10days (78 mm) Wet	8.2h Good	65% Muggy	4.9 Moderate	Fair	View Details
April	19°C / 8°C	17°C / 5°C	10days (87 mm) Wet	8.9h Good	67% Muggy	5.8 High	Good	View Details
May best	23°C / 13°C	23°C / 12°C	14days (119 mm) Wet	9.2h Good	74% Muggy	6.3 High	Excellent	View Details
June best	28°C / 18°C	30°C / 19°C	12days (94 mm) Wet	11.3h Excellent	70% Muggy	7.2 Very High	Excellent	View Details
July	32°C / 21°C	35°C / 24°C	13days (116 mm) Wet	11.8h Excellent	70% Muggy	7.5 Very High	Fair	View Details
August best	30°C / 20°C	32°C / 22°C	12days (93 mm) Wet	10.6h Excellent	74% Muggy	6.9 High	Good	View Details
September best	26°C / 17°C	27°C / 18°C	9days (109 mm) Wet	8.6h Good	74% Muggy	5.1 High	Excellent	View Details
October best	20°C / 11°C	19°C / 10°C	7days (70 mm) Good	7.8h Good	73% Muggy	4.4 Moderate	Good	View Details
November	13°C / 4°C	10°C / 1°C	7days (74 mm) Good	7.1h Good	69% Muggy	3 Moderate	Fair	View Details
December	7°C / 0°C	4°C / -4°C	10days (93 mm) Wet	5.7h Fair	72% Muggy	2.3 Moderate	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesSunscreen (SPF 30+)Sunglasses

Frequently Asked Questions

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Is May a good time to visit Frederick?

May is typically excellent for visiting Frederick, with average highs of 23°C (73°F) and around 14 rainy days. Frederick, United States in May has warm conditions, with highs averaging 22.9°C (73°F). Rain falls on about 14 days thi

Does it rain a lot in Frederick in May?

Frederick typically sees around 14 rainy days in May with 119 mm (4.7 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Frederick in May?

Evenings in Frederick during May are mild at 13°C (55°F). A light cardigan is usually enough.

What should I pack for Frederick in May?

With highs of 23°C (73°F) and lows of 13°C (55°F) in May, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Frederick?

Yes, May offers some of the best weather conditions in Frederick with comfortable temperatures and lower chances of rain.

What is the UV index in Frederick in May?

The average UV index in Frederick during May is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Frederick in May?

Frederick gets approximately 14 hours of daylight per day in May, with around 9 hours of sunshine.

Does it snow in Frederick in May?

Snow is uncommon in Frederick during May based on 10-year climate averages.

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