May weather forecast
New Haven, VT

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Weather in May

The last month of the spring, May, is a refreshing month in New Haven, Vermont, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 64.9°F (18.3°C).

Temperature

New Haven experiences a noticeable temperature shift with the start of May, with average high-temperatures moving from a chilly 49.6°F (9.8°C) in April to an enjoyable 64.9°F (18.3°C). During May, New Haven records a consistent average nighttime temperature of 44.2°F (6.8°C).

Humidity

The months with the lowest humidity in New Haven are April and May, with an average relative humidity of 76%.

Rainfall

In New Haven, during May, the rain falls for 18.2 days and regularly aggregates up to 3.19" (81mm) of precipitation. In New Haven, during the entire year, the rain falls for 175.7 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in New Haven. During 0.8 snowfall days, in May, New Haven aggregates 0.71" (18mm) of snow. In New Haven, during the entire year, snow falls for 96 days and aggregates up to 49.8" (1265mm) of snow.

Daylight

The average length of the day in May in New Haven is 14h and 47min.
On the first day of the month, sunrise is at 5:42 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:12 am and sunset at 8:28 pm EDT.

Sunshine

In May, the average sunshine in New Haven is 8.2h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in New Haven. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What is the usual temperature for New Haven in May?

During May, New Haven experiences an average high-temperature of 64.9°F (18.3°C) and a low-temperature of 44.2°F (6.8°C).

What is the least humid month in New Haven?

April and May, with an average relative humidity of 76%, are the least humid months in New Haven.

What is the average humidity in May in New Haven?

In May, the average relative humidity in New Haven, Vermont, is 76%.

How much does it rain in New Haven in May?

In May, in New Haven, the rain falls for 18.2 days. Throughout May, 3.19" (81mm) of precipitation is accumulated.

What is the last month it snows in New Haven?

May is the last month it regularly snows in New Haven, Vermont. During 0.8 snowfall days, in May, New Haven aggregates 0.71" (18mm) of snow.

What is the average length of the day in May in New Haven?

In May, the average day length in New Haven, Vermont, is 14h and 47min.

What time are sunrise and sunset in May in New Haven?

On the first day of May in New Haven, sunrise is at 5:42 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:28 pm EDT.

How many hours of sunshine does New Haven have in May?

In May, the average sunshine duration is 8.2h.

What are the months with the highest UV index in New Haven?

May through August, with an average maximum UV index of 5, are months with the highest UV index in New Haven, Vermont.

How high is the UV index in May in New Haven?

In May, the average daily maximum UV index is 5. A UV Index value 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
New Haven, VT

Average temperature in May - New Haven, VT
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

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Average pressure in May
New Haven, VT

Average pressure in May - New Haven, VT
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
New Haven, VT

Average wind speed in May - New Haven, VT
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
New Haven, VT

Average humidity in May - New Haven, VT
  • Average humidity in May: 76%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (76%).

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Average rainfall in May
New Haven, VT

Average rainfall in May - New Haven, VT
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in May
New Haven, VT

Average rainfall days in May - New Haven, VT
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in May
New Haven, VT

Average snowfall in May - New Haven, VT
  • Average snowfall in May: 0.71"

The month with the highest snowfall is February (11.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
New Haven, VT

Average snowfall days in May - New Haven, VT
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
New Haven, VT

Average daylight in May / Average sunshine in May - New Haven, VT
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

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Average sunshine days in May
New Haven, VT

Average sunshine days in May - New Haven, VT
  • Average sunshine days in May: 10.9 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.7 days).

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Average UV index in May
New Haven, VT

Average UV index in May - New Haven, VT
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
New Haven, VT

Average cloud cover in May - New Haven, VT
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in May
New Haven, VT

Average visibility in May - New Haven, VT
  • Average visibility in May: 5mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).

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New Haven, Vermont, USA

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