May weather forecast and climate
Niagara Falls, NY

The glorious Niagara Falls in New York, USA, viewed from above
The glorious Niagara Falls in New York, USA, viewed from above
May brings the smell of spring flowers coupled with warm temperatures in the pleasant 45°F (7.2°C) to 67°F (19.4°C) range.
Sunny days are back in Niagara Falls even though it rains up to 3" (76.2mm) during the month; thunderstorms hit during May, sometimes pouring a couple of" of rain within 24 hours. Niagara Falls draws visitors from all over the globe as the sun shines for a daily 8 hours in the latter part of spring. The lush green parks offer majestic natural beauty away from the buzz of the tourists in the long daylight hours.
May is an excellent time to visit Niagara Falls with delightfully temperate weather.

What is the temperature in May in Niagara Falls?

In May, in Niagara Falls, New York, the average high-temperature is 67.6°F (19.8°C), and the average low-temperature is 45.1°F (7.3°C).

How many days does it rain in May in Niagara Falls?

In Niagara Falls, New York, in May, it is raining for 12.8 days, with typically 3.1" (78mm) of accumulated precipitation.

Does it snow in Niagara Falls in May?

In May, in Niagara Falls, New York, it doesn't snow. April is the latest month when it typically snows.
Average temperature in May - Niagara Falls, NY
  • Average high temperature in May: 67.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.1°F).

  • Average low temperature in May: 45.2°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average rainfall in May - Niagara Falls, NY
  • Average rainfall in May: 3.1"

Wettest months (with the highest rainfall) are September and November (3.4").
The driest month (with the lowest rainfall) is February (2.2").

Average rainfall days in May - Niagara Falls, NY
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is January (19.2 days).
The month with the lowest number of rainy days is August (9.8 days).

Average snowfall in May - Niagara Falls, NY
  • Average snowfall in May: 0"

The month with the highest snowfall is January (23.6").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in May - Niagara Falls, NY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (15 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Niagara Falls, NY
  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8h

Months with most sunshine are June and July (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 2h).

Average UV index in May - Niagara Falls, NY
  • Average UV index in May: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).

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