April weather forecast
South Windham, CT

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Weather in April

April is a refreshing spring month in South Windham, Connecticut, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 55.9°F (13.3°C).

Temperature

An increase in the average high-temperature marks April, moving from March's chilly 43.7°F (6.5°C) to a mild 55.9°F (13.3°C). Throughout April, South Windham registers a consistent average low-temperature of 39.6°F (4.2°C).

Humidity

April is the least humid month, with an average relative humidity of 72%.

Rainfall

In April, the rain falls for 15.5 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. In South Windham, during the entire year, the rain falls for 164.2 days and collects up to 33.74" (857mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in South Windham. In South Windham, during April, snow falls for 0.9 days and regularly aggregates up to 0.31" (8mm) of snow. In South Windham, during the entire year, snow falls for 31.6 days and aggregates up to 15.98" (406mm) of snow.

Daylight

In April, the average length of the day in South Windham, Connecticut, is 13h and 22min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:14 pm. On the last day of April, sunrise is at 5:45 am and sunset at 7:46 pm EDT.

Sunshine

The average sunshine in April in South Windham is 8.2h.

UV index

In South Windham, Connecticut, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 3 in April leads to these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What are April temperatures in South Windham?

The high-temperature in South Windham, Connecticut, during April is 55.9°F (13.3°C) and the low-temperature is 39.6°F (4.2°C).

What is the least humid month in South Windham?

The least humid month is April, with an average relative humidity of 72%.

What is the average humidity in April in South Windham?

The average relative humidity in April is 72%.

How many days does it rain in April in South Windham?

In South Windham, Connecticut, during April, the rain falls for 15.5 days and regularly aggregates up to 3.15" (80mm) of precipitation.

How many days does it snow in April in South Windham?

In April, it is snowing for 0.9 days. Throughout April, 0.31" (8mm) of snow is accumulated.

How many hours of daylight does South Windham have in April?

In South Windham, the average day length in April is 13h and 22min.

What time are sunrise and sunset in April in South Windham?

On the first day of April in South Windham, sunrise is at 6:30 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:46 pm EDT.

How long on average sun shines in April in South Windham?

The average sunshine duration in April in South Windham is 8.2h.

How high is the UV index in April in South Windham?

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from 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
South Windham, CT

Average temperature in April - South Windham, CT
  • Average high temperature in April: 55.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in April: 39.6°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in April
South Windham, CT

Average pressure in April - South Windham, CT
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in April
South Windham, CT

Average wind speed in April - South Windham, CT
  • Average wind speed in April: 8.3mph

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in April
South Windham, CT

Average humidity in April - South Windham, CT
  • Average humidity in April: 72%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in April
South Windham, CT

Average rainfall in April - South Windham, CT
  • Average rainfall in April: 3.15"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in April
South Windham, CT

Average rainfall days in April - South Windham, CT
  • Average rainfall days in April: 15.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in April
South Windham, CT

Average snowfall in April - South Windham, CT
  • Average snowfall in April: 0.31"

The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in April
South Windham, CT

Average snowfall days in April - South Windham, CT
  • Average snowfall days in April: 0.9 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
South Windham, CT

Average daylight in April / Average sunshine in April - South Windham, CT
  • 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 December (Average sunshine: 4h and 42min).

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Average sunshine days in April
South Windham, CT

Average sunshine days in April - South Windham, CT
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in April
South Windham, CT

Average UV index in April - South Windham, CT
  • 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
South Windham, CT

Average cloud cover in April - South Windham, CT
  • Average cloud cover in April: 46

The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in April
South Windham, CT

Average visibility in April - South Windham, CT
  • Average visibility in April: 6mi

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

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South Windham, Connecticut, USA

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