April weather forecast
Arlington, MA

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Weather in April

April's weather in Arlington, Massachusetts is a true testament to the Spring season. The significant transition from the winter chill of March to warmer weather is felt as temperatures markedly rise. One of April's significant characteristics is the reduced snowfall, with measurements dropping drastically to only 0.91" (23mm). Skipping into May, the weather projects an even warmer forecast. In terms of sunshine, April marks the beginning of increasingly sunny days, fostering an outdoor-friendly environment.

Temperature

The shift into April in Arlington is marked by a rise in the average high-temperature, moving from March's frosty 43.3°F (6.3°C) to a refreshing 55.8°F (13.2°C). During the month of April, an average low-temperature of 39.7°F (4.3°C) is recorded in Arlington.

Humidity

April is the least humid month in Arlington, with an average relative humidity of 70%.

Rainfall

In Arlington, during April, the rain falls for 14.5 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Arlington, there are 142.8 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Arlington, during April, snow falls for 1.3 days and regularly aggregates up to 0.91" (23mm) of snow. In Arlington, during the entire year, snow falls for 29.6 days and aggregates up to 17.8" (452mm) of snow.

Daylight

The average length of the day in April in Arlington is 13h and 24min.
On the first day of April, sunrise is at 6:25 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 7:43 pm EDT.

Sunshine

In April, the average sunshine is 8.2h.

UV index

In Arlington, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 3 in April suggests the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What are April temperatures in Arlington?

In April, the average high-temperature and low-temperature in Arlington, Massachusetts, are 55.8°F (13.2°C) and 39.7°F (4.3°C) respectively.

What is the least humid month in Arlington?

April is the least humid month in Arlington, Massachusetts, with an average relative humidity of 70%.

What is the average humidity in April in Arlington?

The average relative humidity in April in Arlington is 70%.

How many days does it rain in April in Arlington?

In Arlington, in April, during 14.5 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How many days does it snow in April in Arlington?

In Arlington, during April, snow falls for 1.3 days and regularly aggregates up to 0.91" (23mm) of snow.

What is the average length of the day in April in Arlington?

The average day length in April in Arlington is 13h and 24min.

When is the sunrise / sunset in April in Arlington?

On the first day of April, sunrise is at 6:25 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 7:43 pm EDT.

How many hours of sunshine does Arlington have in April?

In April, the average sunshine duration in Arlington, Massachusetts, is 8.2h.

What is the UV index reading in April in Arlington?

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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 April
Arlington, MA

Average temperature in April - Arlington, MA
  • Average high temperature in April: 55.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in April
Arlington, MA

Average pressure in April - Arlington, MA
  • Average pressure in April: 29.97"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in April
Arlington, MA

Average wind speed in April - Arlington, MA
  • Average wind speed in April: 8.3mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in April
Arlington, MA

Average humidity in April - Arlington, MA
  • Average humidity in April: 70%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in April
Arlington, MA

Average rainfall in April - Arlington, MA
  • Average rainfall in April: 2.83"

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in April
Arlington, MA

Average rainfall days in April - Arlington, MA
  • Average rainfall days in April: 14.5 days

The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in April
Arlington, MA

Average snowfall in April - Arlington, MA
  • Average snowfall in April: 0.91"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Arlington, MA

Average snowfall days in April - Arlington, MA
  • Average snowfall days in April: 1.3 days

The month with the highest number of snowfall days is January (7.7 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
Arlington, MA

Average daylight in April / Average sunshine in April - Arlington, MA
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in April
Arlington, MA

Average sunshine days in April - Arlington, MA
  • Average sunshine days in April: 13.3 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index in April
Arlington, MA

Average UV index in April - Arlington, MA
  • Average UV index in April: 3

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 April
Arlington, MA

Average cloud cover in April - Arlington, MA
  • Average cloud cover in April: 46

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in April
Arlington, MA

Average visibility in April - Arlington, MA
  • Average visibility in April: 6mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

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Arlington, Massachusetts, USA

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