April weather forecast
Boston, IN

Weather in April

April is a moderate spring month in Boston, Indiana, with average temperature varying between 43.7°F (6.5°C) and 60.4°F (15.8°C).

Temperature

In April, the average high-temperature increases, from a chilly 48.7°F (9.3°C) in March, to a mild 60.4°F (15.8°C). In April, in Boston, the average low-temperature is 43.7°F (6.5°C).

Humidity

The average relative humidity in April is 77%.

Rainfall

In April, the rain falls for 14.8 days. Throughout April, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 154.1 rainfall days, and 23.74" (603mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Boston are January through April, October through December. April is the last month it regularly snows. During 1 snowfall days, Boston aggregates 0.43" (11mm) of snow. In Boston, Indiana, during the entire year, snow falls for 33.4 days, and aggregates up to 9.37" (238mm) of snow.

Daylight

In April, the average length of the day in Boston, Indiana, is 13.3h.

Sunshine

In Boston, Indiana, the average sunshine is 7.4h.

UV index

In Boston, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Boston?

The average relative humidity in April in Boston, Indiana, is 77%.

How many days does it rain in April in Boston?

In Boston, Indiana, during April, the rain falls for 14.8 days and regularly aggregates up to 2.28" (58mm) of precipitation.

What is the last month it snows in Boston?

April is the last month it regularly snows in Boston. During 1 snowfall days, in April, Boston aggregates 0.43" (11mm) of snow.

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

The average length of the day in April in Boston is 13.3h.

How long on average sun shines in April in Boston?

The average sunshine in April is 7.4h.

What is the UV index intensity in April in Boston?

The average daily maximum UV index in April in Boston is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
Boston, IN

Average temperature in April - Boston, IN
  • Average high temperature in April: 60.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in April: 43.7°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 (20.8°F).

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Average pressure in April
Boston, IN

Average pressure in April - Boston, IN
  • Average pressure in April: 29.96"

Months with the highest atmospheric pressure are January and November (30.13").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in April
Boston, IN

Average wind speed in April - Boston, IN
  • Average wind speed in April: 9.9mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in April
Boston, IN

Average humidity in April - Boston, IN
  • Average humidity in April: 77%

Months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in April
Boston, IN

Average rainfall in April - Boston, IN
  • Average rainfall in April: 2.28"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in April
Boston, IN

Average rainfall days in April - Boston, IN
  • Average rainfall days in April: 14.8 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (7.4 days).

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Average snowfall in April
Boston, IN

Average snowfall in April - Boston, IN
  • Average snowfall in April: 0.43"

The month with the highest snowfall is December (2.28").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Boston, IN

Average snowfall days in April - Boston, IN
  • Average snowfall days in April: 1 days

The month with the highest number of snowfall days is January (9.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Boston, IN

Average daylight in April / Average sunshine in April - Boston, IN
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in April: 7.4h

Months with the most sunshine are June and July (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3.7h).

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Average sunshine days in April
Boston, IN

Average sunshine days in April - Boston, IN
  • Average sunshine days in April: 13.1 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in April
Boston, IN

Average UV index in April - Boston, IN
  • Average UV index in April: 4

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in April
Boston, IN

Average cloud cover in April - Boston, IN
  • Average cloud cover in April: 46

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in April
Boston, IN

Average visibility in April - Boston, IN
  • Average visibility in April: 6mi

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

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