March weather forecast
Alton, NH

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Weather in March

In Alton, when March arrives, the first hints of spring are in the air. Keeping with the transition from winter to spring, daytime temperatures begin to rise closer to the point of thawing. Compared to February, temperatures climb up, reaching a high average of 37.9°F (3.3°C), signaling the retreat of winter's icy grip. The melting snow and rising temperatures create a unique ambiance distinct to March in Alton. Added to the physical changes, this shift from winter to spring is often seen as symbolizing renewal and growth.

Temperature

The beginning of March in Alton marks a minor shift in the average high-temperature, moving from February's subzero cold 29.3°F (-1.5°C) to an icy 37.9°F (3.3°C). The nighttime temperature in Alton dips to a subzero cold 22.5°F (-5.3°C) on average during March.

Humidity

The average relative humidity in March is 84%.

Rainfall

In Alton, in March, during 11.7 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Alton, during the entire year, the rain falls for 152 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In March, in Alton, New Hampshire, it is snowing for 11.6 days. Throughout March, 7.24" (184mm) of snow is accumulated. Throughout the year, in Alton, New Hampshire, there are 58.3 snowfall days, and 38.98" (990mm) of snow is accumulated.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of March, sunrise is at 6:19 am and sunset at 5:34 pm EST. On the last day of the month, sunrise is at 6:26 am and sunset at 7:10 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

The average sunshine in March in Alton is 5.5h.

UV index

The months with the lowest UV index in Alton are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 2 in March, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

Is it cold in Alton during March?

In Alton, 37.9°F (3.3°C) is the average high-temperature and 22.5°F (-5.3°C) is the average low-temperature during March.

What is the average humidity in March in Alton?

In Alton, New Hampshire, the average relative humidity in March is 84%.

How many days does it rain in March in Alton?

In Alton, New Hampshire, during March, the rain falls for 11.7 days and regularly aggregates up to 2.24" (57mm) of precipitation.

How many days does it snow in March in Alton?

In Alton, in March, snow falls for 11.6 days, with typically accumulated 7.24" (184mm) of snow.

How many hours of daylight does Alton have in March?

The average day length in March in Alton is 11h and 58min.

What time are sunrise and sunset in March in Alton?

On the first day of March in Alton, sunrise is at 6:19 am and sunset at 5:34 pm EST. On the last day of the month, sunrise is at 6:26 am and sunset at 7:10 pm EDT.

When does Daylight Saving Time (DST) start in March in Alton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Alton have in March?

In March, the average sunshine duration in Alton, New Hampshire, is 5.5h.

When is the lowest UV index in Alton?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Alton.

How high is the UV index in March in Alton?

The average daily maximum UV index in March in Alton is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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 March
Alton, NH

Average temperature in March - Alton, NH
  • Average high temperature in March: 37.9°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 March: 22.5°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 March
Alton, NH

Average pressure in March - Alton, NH
  • Average pressure in March: 30.03"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 March
Alton, NH

Average wind speed in March - Alton, NH
  • Average wind speed in March: 6.9mph

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 March
Alton, NH

Average humidity in March - Alton, NH
  • Average humidity in March: 84%

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 March
Alton, NH

Average rainfall in March - Alton, NH
  • Average rainfall in March: 2.24"

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 March
Alton, NH

Average rainfall days in March - Alton, NH
  • Average rainfall days in March: 11.7 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 March
Alton, NH

Average snowfall in March - Alton, NH
  • Average snowfall in March: 7.24"

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 March
Alton, NH

Average snowfall days in March - Alton, NH
  • Average snowfall days in March: 11.6 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 March /
Average sunshine in March
Alton, NH

Average daylight in March / Average sunshine in March - Alton, NH
  • Average daylight in March: 12h and 0min

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 March: 5h and 3min

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 March
Alton, NH

Average sunshine days in March - Alton, NH
  • Average sunshine days in March: 11.9 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 March
Alton, NH

Average UV index in March - Alton, NH
  • Average UV index in March: 2

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 March
Alton, NH

Average cloud cover in March - Alton, NH
  • Average cloud cover in March: 52

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 March
Alton, NH

Average visibility in March - Alton, NH
  • Average visibility in March: 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, New Hampshire, USA

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