May weather forecast
Mount Vernon, NY

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Weather in May

Mount Vernon’s weather in May sees a significant transition with temperatures reaching as high as 67.8°F (19.9°C). Contrasting the increase in warmth, May also becomes a comparatively wet month as rain frequency increases. The longer sunshine hours coupled with mildly high humidity levels prompt the greenery to thrive. Gentle breezes play across the city, interrupting the warmth occasionally with a cool touch. Being the doorway to summer, May makes you feel the upcoming heat while leaving traces of spring's freshness.

Temperature

As Mount Vernon transitions into May, a rise in the average high-temperature is observed, moving from a moderate 57.2°F (14°C) in April to an enjoyable 67.8°F (19.9°C). Mount Vernon's nights in May experience an average temperature drop to a fresh 53.4°F (11.9°C).

Humidity

In May, the average relative humidity in Mount Vernon is 74%.

Rainfall

In Mount Vernon, in May, during 16.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, in Mount Vernon, there are 156.5 rainfall days, and 33.19" (843mm) of precipitation is accumulated.

Snowfall

In Mount Vernon, snow does not fall in May through October.

Daylight

In Mount Vernon, New York, the average length of the day in May is 14h and 29min.
On the first day of May in Mount Vernon, sunrise is at 5:52 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May in Mount Vernon is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Around midday, solar radiation is most harmful; hence, exposure should be limited. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the temperature in May in Mount Vernon?

In Mount Vernon, 67.8°F (19.9°C) is the average high-temperature and 53.4°F (11.9°C) is the average low-temperature during May.

What is the average humidity in May in Mount Vernon?

In May, the average relative humidity in Mount Vernon is 74%.

How many days does it rain in May in Mount Vernon?

In Mount Vernon, New York, in May, it is raining for 16.6 days, with typically 2.83" (72mm) of accumulated precipitation.

When it does not snow in Mount Vernon?

In Mount Vernon, New York, snow does not fall in May through October.

Does it snow in Mount Vernon in May?

In May, in Mount Vernon, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Mount Vernon have in May?

The average day length in May in Mount Vernon is 14h and 29min.

When are sunrise and sunset in May in Mount Vernon?

On the first day of May in Mount Vernon, New York, sunrise is at 5:52 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:20 pm EDT.

How long on average sun shines in May in Mount Vernon?

In Mount Vernon, the average sunshine duration in May is 8.7h.

What is the UV index intensity in May in Mount Vernon?

In May, the average daily maximum UV index in Mount Vernon is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Mount Vernon, NY

Average temperature in May - Mount Vernon, NY
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in May
Mount Vernon, NY

Average pressure in May - Mount Vernon, NY
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Mount Vernon, NY

Average wind speed in May - Mount Vernon, NY
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

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Average humidity in May
Mount Vernon, NY

Average humidity in May - Mount Vernon, NY
  • Average humidity in May: 74%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in May
Mount Vernon, NY

Average rainfall in May - Mount Vernon, NY
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is February (2.01").

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Average rainfall days in May
Mount Vernon, NY

Average rainfall days in May - Mount Vernon, NY
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (8 days).

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Average snowfall in May
Mount Vernon, NY

Average snowfall in May - Mount Vernon, NY
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Mount Vernon, NY

Average snowfall days in May - Mount Vernon, NY
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Mount Vernon, NY

Average daylight in May / Average sunshine in May - Mount Vernon, NY
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
Mount Vernon, NY

Average sunshine days in May - Mount Vernon, NY
  • Average sunshine days in May: 13 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index in May
Mount Vernon, NY

Average UV index in May - Mount Vernon, NY
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in May
Mount Vernon, NY

Average cloud cover in May - Mount Vernon, NY
  • Average cloud cover in May: 44

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
Mount Vernon, NY

Average visibility in May - Mount Vernon, NY
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Mount Vernon, New York, USA

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