Plattsburgh, United States — Weather in May 2027

Climate Overview

Plattsburgh, United States in May has mild conditions, with highs averaging 19.3°C (67°F) and noticeably cooler mornings. Rain falls on about 10 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 15°C (60°F) at the start to 23°C (74°F) by month's end.

May sees fairly even rainfall, totalling about 83 mm across the month.

Expect around 6.6h of sunshine at the start of May, increasing to 11.4h by the end.

The warmest days tend to fall around the 28th, averaging 23.4°C (74°F).

Compared to April, this month is about 8°C warmer with 3 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

19°C / 9°C

Feels Like

19°C / 7°C

Rain

10 days · 83 mm

Sunshine

10.1h / day

Humidity

71% — Humid

Wind

15 km/h

Wind Direction

WSW (252°)

Gusts

36 km/h

Daylight

14.8 h

Cloud Cover

63%

Clear Sky Days

3.8

UV Index

5.6 — High

Dew Point

9°C — Dry

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 05:27

Daylight 14.8h

Sunset 20:16

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	-2°C / -9°C	-6°C / -14°C	11days (73 mm) Wet	4.9h Fair	76% Humid	2 Low	Poor	View Details
February	0°C / -9°C	-4°C / -14°C	10days (70 mm) Wet	6h Fair	74% Muggy	3.2 Moderate	Poor	View Details
March	5°C / -4°C	1°C / -9°C	13days (79 mm) Wet	7.4h Good	71% Muggy	4.1 Moderate	Poor	View Details
April	12°C / 2°C	9°C / -1°C	13days (111 mm) Wet	8.3h Good	70% Muggy	5 Moderate	Poor	View Details
May best	19°C / 9°C	19°C / 7°C	10days (83 mm) Wet	10.1h Excellent	71% Muggy	5.6 High	Good	View Details
June best	24°C / 15°C	25°C / 14°C	13days (113 mm) Wet	10.8h Excellent	72% Muggy	6.4 High	Excellent	View Details
July best	27°C / 19°C	29°C / 20°C	13days (116 mm) Wet	11.7h Excellent	75% Muggy	6.9 High	Excellent	View Details
August best	26°C / 18°C	28°C / 19°C	14days (117 mm) Wet	10.8h Excellent	76% Humid	6 High	Excellent	View Details
September best	22°C / 15°C	23°C / 14°C	8days (80 mm) Wet	9.3h Good	77% Humid	5.1 High	Excellent	View Details
October	15°C / 9°C	14°C / 6°C	12days (119 mm) Wet	6.6h Fair	78% Humid	3.3 Moderate	Fair	View Details
November	7°C / 1°C	4°C / -3°C	13days (88 mm) Wet	5h Fair	77% Humid	2.1 Moderate	Poor	View Details
December	1°C / -5°C	-3°C / -9°C	13days (82 mm) Wet	4.3h Fair	77% Humid	1.6 Low	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

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Plattsburgh?

May is typically good for visiting Plattsburgh, with average highs of 19°C (67°F) and around 10 rainy days. Plattsburgh, United States in May has mild conditions, with highs averaging 19.3°C (67°F) and noticeably cooler mornings

Does it rain a lot in Plattsburgh in May?

Plattsburgh typically sees around 10 rainy days in May with 83 mm (3.3 in) of total rainfall. An umbrella should suffice.

Does it get cold at night in Plattsburgh in May?

Nights in Plattsburgh during May are cool at around 9°C (48°F). Bring a jacket or sweater for evenings.

What should I pack for Plattsburgh in May?

With highs of 19°C (67°F) and lows of 9°C (48°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Plattsburgh in May?

The average UV index in Plattsburgh 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 Plattsburgh in May?

Plattsburgh gets approximately 15 hours of daylight per day in May, with around 10 hours of sunshine.

Does it snow in Plattsburgh in May?

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

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