April weather forecast
Alton Bay, NH

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Weather in April

April is a fresh spring month in Alton Bay, New Hampshire, with an average temperature fluctuating between 50.9°F (10.5°C) and 33.6°F (0.9°C).

Temperature

The transition to April introduces an increase in the average high-temperature, shifting from a cold 37.9°F (3.3°C) in March to a fresh 50.9°F (10.5°C). Alton Bay's average low-temperature in April is measured at a cold 33.6°F (0.9°C).

Humidity

The least humid month in Alton Bay is April, with an average relative humidity of 76%.

Rainfall

In Alton Bay, New Hampshire, in April, it is raining for 15.8 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, in Alton Bay, there are 152 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Alton Bay are January through May, October through December. In April, it is snowing for 4.3 days. Throughout April, 3.7" (94mm) of snow is accumulated. Throughout the year, in Alton Bay, there are 58.3 snowfall days, and 38.98" (990mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 27min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:12 pm. On the last day of April, in Alton Bay, sunrise is at 5:37 am and sunset at 7:46 pm EDT.

Sunshine

In April, the average sunshine in Alton Bay is 7.6h.

UV index

In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 3 in April translates into these instructions:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What are the temperatures in Alton Bay in April?

An average high-temperature, in April, in Alton Bay, is 50.9°F (10.5°C) and the average low-temperature is 33.6°F (0.9°C).

What is the least humid month in Alton Bay?

The least humid month in Alton Bay is April, with an average relative humidity of 76%.

What is the average humidity in April in Alton Bay?

The average relative humidity in April in Alton Bay, New Hampshire, is 76%.

How much does it rain in Alton Bay in April?

In Alton Bay, New Hampshire, in April, it is raining for 15.8 days, with typically 2.99" (76mm) of accumulated precipitation.

How many days does it snow in April in Alton Bay?

In Alton Bay, New Hampshire, in April, snow falls for 4.3 days, with typically accumulated 3.7" (94mm) of snow.

How many hours of daylight does Alton Bay have in April?

The average day length in April in Alton Bay is 13h and 27min.

When are sunrise and sunset in April in Alton Bay?

On the first day of April, sunrise is at 6:25 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:46 pm EDT.

How many hours of sunshine does Alton Bay have in April?

In April, the average sunshine duration is 7.6h.

How high is the UV index in April in Alton Bay?

In Alton Bay, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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 April
Alton Bay, NH

Average temperature in April - Alton Bay, NH
  • Average high temperature in April: 50.9°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in April: 33.6°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

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Average pressure in April
Alton Bay, NH

Average pressure in April - Alton Bay, NH
  • Average pressure in April: 29.96"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 April
Alton Bay, NH

Average wind speed in April - Alton Bay, NH
  • Average wind speed in April: 6.8mph

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in April
Alton Bay, NH

Average humidity in April - Alton Bay, NH
  • Average humidity in April: 76%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in April
Alton Bay, NH

Average rainfall in April - Alton Bay, NH
  • Average rainfall in April: 2.99"

The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in April
Alton Bay, NH

Average rainfall days in April - Alton Bay, NH
  • Average rainfall days in April: 15.8 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in April
Alton Bay, NH

Average snowfall in April - Alton Bay, NH
  • Average snowfall in April: 3.7"

The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Alton Bay, NH

Average snowfall days in April - Alton Bay, NH
  • Average snowfall days in April: 4.3 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Alton Bay, NH

Average daylight in April / Average sunshine in April - Alton Bay, NH
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in April
Alton Bay, NH

Average sunshine days in April - Alton Bay, NH
  • Average sunshine days in April: 11.4 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.4 days).

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Average UV index in April
Alton Bay, NH

Average UV index in April - Alton Bay, NH
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in April
Alton Bay, NH

Average cloud cover in April - Alton Bay, NH
  • Average cloud cover in April: 50

The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in April
Alton Bay, NH

Average visibility in April - Alton Bay, NH
  • Average visibility in April: 5mi

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

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Alton Bay, New Hampshire, USA

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