April weather forecast
Hyannis Port, MA

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Weather in April

April in Hyannis Port, Massachusetts, is a frosty spring month, with an average temperature fluctuating between 42.4°F (5.8°C) and 47.1°F (8.4°C).

Temperature

The arrival of April brings a soft temperature shift, with the average high-temperature nudging from an icy 41.5°F (5.3°C) in March to a chilly 47.1°F (8.4°C). An average temperature of 42.4°F (5.8°C) is logged during the nights of April in Hyannis Port, a small step down from daytime highs.

Humidity

In Hyannis Port, the average relative humidity in April is 79%.

Rainfall

In Hyannis Port, Massachusetts, in April, it is raining for 15.8 days, with typically 3.03" (77mm) of accumulated precipitation. In Hyannis Port, during the entire year, the rain falls for 157.2 days and collects up to 31.77" (807mm) of precipitation.

Snowfall

Months with snowfall in Hyannis Port are January through April and December. April is the last month it regularly snows in Hyannis Port. During 0.6 snowfall days, in April, Hyannis Port aggregates 0.12" (3mm) of snow. Throughout the year, in Hyannis Port, there are 24.1 snowfall days, and 6.1" (155mm) of snow is accumulated.

Daylight

In Hyannis Port, the average length of the day in April is 13h and 22min.
On the first day of April in Hyannis Port, Massachusetts, sunrise is at 6:22 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:38 pm EDT.

Sunshine

In April, the average sunshine in Hyannis Port is 8.4h.

UV index

The average daily maximum UV index in April in Hyannis Port, Massachusetts, is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 3 during April translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Hyannis Port in April?

April temperatures in Hyannis Port vary between a high-temperature of 47.1°F (8.4°C) and a low-temperature of 42.4°F (5.8°C).

What is the average humidity in April in Hyannis Port?

In Hyannis Port, Massachusetts, the average relative humidity in April is 79%.

How much does it rain in Hyannis Port in April?

In Hyannis Port, Massachusetts, in April, during 15.8 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

What is the last month it snows in Hyannis Port?

April is the last month it regularly snows in Hyannis Port, Massachusetts. During 0.6 snowfall days, in April, Hyannis Port aggregates 0.12" (3mm) of snow.

How many hours of daylight does Hyannis Port have in April?

The average day length in April in Hyannis Port, Massachusetts, is 13h and 22min.

When is the sunrise / sunset in April in Hyannis Port?

On the first day of April, sunrise is at 6:22 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:38 pm EDT.

How long on average sun shines in April in Hyannis Port?

In Hyannis Port, Massachusetts, the average sunshine duration in April is 8.4h.

What is the UV index reading in April in Hyannis Port?

In April, the average daily maximum UV index in Hyannis Port, Massachusetts, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Hyannis Port, MA

Average temperature in April - Hyannis Port, MA
  • Average high temperature in April: 47.1°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in April: 42.4°F

The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in April
Hyannis Port, MA

Average pressure in April - Hyannis Port, MA
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in April
Hyannis Port, MA

Average wind speed in April - Hyannis Port, MA
  • Average wind speed in April: 14.1mph

The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).

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Average humidity in April
Hyannis Port, MA

Average humidity in April - Hyannis Port, MA
  • Average humidity in April: 79%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in April
Hyannis Port, MA

Average rainfall in April - Hyannis Port, MA
  • Average rainfall in April: 3.03"

The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").

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Average rainfall days in April
Hyannis Port, MA

Average rainfall days in April - Hyannis Port, MA
  • 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 (10.3 days).

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Average snowfall in April
Hyannis Port, MA

Average snowfall in April - Hyannis Port, MA
  • Average snowfall in April: 0.12"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in April
Hyannis Port, MA

Average snowfall days in April - Hyannis Port, MA
  • Average snowfall days in April: 0.6 days

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Hyannis Port, MA

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

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

  • Average sunshine in April: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in April
Hyannis Port, MA

Average sunshine days in April - Hyannis Port, MA
  • Average sunshine days in April: 12.7 days

The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).

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Average UV index in April
Hyannis Port, MA

Average UV index in April - Hyannis Port, MA
  • Average UV index in April: 3

The months with the highest UV index are 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
Hyannis Port, MA

Average cloud cover in April - Hyannis Port, MA
  • Average cloud cover in April: 45

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in April
Hyannis Port, MA

Average visibility in April - Hyannis Port, MA
  • Average visibility in April: 6mi

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

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Hyannis Port, Massachusetts, USA

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