April weather forecast
Westborough, MA

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Weather in April

April is a mild spring month in Westborough, Massachusetts, with an average temperature varying between 55.9°F (13.3°C) and 39°F (3.9°C).

Temperature

As Westborough enters April, the average high-temperature increases from the a chilly 43°F (6.1°C) of March to a mild 55.9°F (13.3°C). April nights experience a consistent temperature drop to an icy 39°F (3.9°C).

Humidity

April is the least humid month, with an average relative humidity of 71%.

Rainfall

In Westborough, in April, it is raining for 13.5 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, in Westborough, there are 140.8 rainfall days, and 26.34" (669mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Westborough are January through May, October through December. In Westborough, Massachusetts, in April, snow falls for 1.5 days, with typically accumulated 1.69" (43mm) of snow. In Westborough, during the entire year, snow falls for 32.4 days and aggregates up to 21.61" (549mm) of snow.

Daylight

In April, the average length of the day in Westborough is 13h and 23min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:12 pm. On the last day of April, sunrise is at 5:42 am and sunset at 7:45 pm EDT.

Sunshine

In Westborough, the average sunshine in April is 8.1h.

UV index

In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 3 during April translates into the following guidance:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

The high-temperature, in April, in Westborough, is 55.9°F (13.3°C), while the low-temperature averages to 39°F (3.9°C).

What is the least humid month?

April is the least humid month, with an average relative humidity of 71%.

What is the average humidity in April?

The average relative humidity in April is 71%.

How much does it rain in Westborough in April?

In April, the rain falls for 13.5 days. Throughout April, 2.52" (64mm) of precipitation is accumulated.

How many days does it snow in April?

In Westborough, in April, during 1.5 snowfall days, 1.69" (43mm) of snow is typically accumulated.

How many hours of daylight does Westborough have in April?

In April, the average day length is 13h and 23min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:27 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:45 pm EDT.

How many hours of sunshine does Westborough have in April?

In April, the average sunshine duration is 8.1h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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 April
Westborough, MA

Average temperature in April - Westborough, MA
  • Average high temperature in April: 55.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in April: 39°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in April
Westborough, MA

Average pressure in April - Westborough, 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).

Average wind speed in April
Westborough, MA

Average wind speed in April - Westborough, MA
  • Average wind speed in April: 8mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in April
Westborough, MA

Average humidity in April - Westborough, MA
  • Average humidity in April: 71%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in April
Westborough, MA

Average rainfall in April - Westborough, MA
  • Average rainfall in April: 2.52"

The wettest months (with the highest rainfall) are March, November and December (2.56").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in April
Westborough, MA

Average rainfall days in April - Westborough, MA
  • Average rainfall days in April: 13.5 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in April
Westborough, MA

Average snowfall in April - Westborough, MA
  • Average snowfall in April: 1.69"

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Westborough, MA

Average snowfall days in April - Westborough, MA
  • Average snowfall days in April: 1.5 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Westborough, MA

Average daylight in April / Average sunshine in April - Westborough, 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 12min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in April
Westborough, MA

Average sunshine days in April - Westborough, MA
  • Average sunshine days in April: 13.4 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in April
Westborough, MA

Average UV index in April - Westborough, 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).

Average cloud cover in April
Westborough, MA

Average cloud cover in April - Westborough, 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 34).

Average visibility in April
Westborough, MA

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

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

Westborough, Massachusetts, USA

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