May weather forecast
Bretton Woods, NH

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Weather in May

By May, Bretton Woods, New Hampshire transitions into a full-blown spring weather, exhibiting significant differences from the preceding months. Daylight hours expand greatly, fueling further blooming of flora and an increase in outdoor activities. Residents enjoy more sunshine, yet might still need cover due to the persistent rainfall over 17.1 days. Towards the end of May, a slight increase in the humidity levels can be felt, a pointer towards the imminent hot and humid summer. As May segues into June, the temperatures continue to rise, as the weather becomes entirely summer-like.

Temperature

As April transitions into May, a clear upsurge in temperatures is observed, with average highs advancing from a frosty 45.3°F (7.4°C) to a refreshing 61.2°F (16.2°C). In Bretton Woods, May nights cool down to an average of 41.2°F (5.1°C).

Humidity

The least humid month is May, with an average relative humidity of 77%.

Rainfall

In Bretton Woods, in May, it is raining for 17.1 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, in Bretton Woods, New Hampshire, there are 152.5 rainfall days, and 34.72" (882mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Bretton Woods. During 2.8 snowfall days, in May, Bretton Woods aggregates 2.64" (67mm) of snow. In Bretton Woods, during the entire year, snow falls for 120.8 days and aggregates up to 97.17" (2468mm) of snow.

Daylight

The average length of the day in May is 14h and 48min.
On the first day of the month, sunrise is at 5:35 am and sunset at 7:50 pm. On the last day of May, in Bretton Woods, sunrise is at 5:05 am and sunset at 8:22 pm EDT.

Sunshine

In Bretton Woods, the average sunshine in May is 7.6h.

UV index

In May, the average daily maximum UV index in Bretton Woods, New Hampshire, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 in May translates into these instructions:
Heed the precautions - It is counselled to guard against solar damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are May temperatures in Bretton Woods?

In May, the average high-temperature and low-temperature are 61.2°F (16.2°C) and 41.2°F (5.1°C) respectively.

What is the least humid month in Bretton Woods?

May is the least humid month in Bretton Woods, with an average relative humidity of 77%.

What is the average humidity in May in Bretton Woods?

In May, the average relative humidity in Bretton Woods is 77%.

How much does it rain in Bretton Woods in May?

In Bretton Woods, in May, during 17.1 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

What is the last month it snows in Bretton Woods?

May is the last month it regularly snows. During 2.8 snowfall days, in May, Bretton Woods aggregates 2.64" (67mm) of snow.

What is the average length of the day in May in Bretton Woods?

In May, the average day length in Bretton Woods, New Hampshire, is 14h and 48min.

What time are sunrise and sunset in May in Bretton Woods?

On the first day of May in Bretton Woods, sunrise is at 5:35 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Bretton Woods?

In May, the average sunshine duration in Bretton Woods is 7.6h.

How high is the UV index in May in Bretton Woods?

The average daily maximum UV index in May in Bretton Woods, New Hampshire, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Bretton Woods, NH

Average temperature in May - Bretton Woods, NH
  • Average high temperature in May: 61.2°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in May: 41.2°F

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

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Average pressure in May
Bretton Woods, NH

Average pressure in May - Bretton Woods, NH
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Bretton Woods, NH

Average wind speed in May - Bretton Woods, NH
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in May
Bretton Woods, NH

Average humidity in May - Bretton Woods, NH
  • Average humidity in May: 77%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in May
Bretton Woods, NH

Average rainfall in May - Bretton Woods, NH
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in May
Bretton Woods, NH

Average rainfall days in May - Bretton Woods, NH
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (5.2 days).

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Average snowfall in May
Bretton Woods, NH

Average snowfall in May - Bretton Woods, NH
  • Average snowfall in May: 2.64"

The month with the highest snowfall is February (17.44").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Bretton Woods, NH

Average snowfall days in May - Bretton Woods, NH
  • Average snowfall days in May: 2.8 days

The month with the highest number of snowfall days is January (22.1 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
Bretton Woods, NH

Average daylight in May / Average sunshine in May - Bretton Woods, NH
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 7h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).

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Average sunshine days in May
Bretton Woods, NH

Average sunshine days in May - Bretton Woods, NH
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).

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Average UV index in May
Bretton Woods, NH

Average UV index in May - Bretton Woods, NH
  • Average UV index in May: 4

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

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Average cloud cover in May
Bretton Woods, NH

Average cloud cover in May - Bretton Woods, NH
  • Average cloud cover in May: 54

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).

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Average visibility in May
Bretton Woods, NH

Average visibility in May - Bretton Woods, NH
  • Average visibility in May: 5mi

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

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Bretton Woods, New Hampshire, USA

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