April weather forecast
Seymour, CT

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Weather in April

April in Seymour, Connecticut, is a mild spring month, with an average temperature varying between 41.2°F (5.1°C) and 56.3°F (13.5°C).

Temperature

Seymour in April experiences an increase in the average high-temperature, moving from March's chilly 44.1°F (6.7°C) to a moderate 56.3°F (13.5°C). Seymour records a steady low-temperature average of 41.2°F (5.1°C) during April.

Humidity

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

Rainfall

In Seymour, during April, the rain falls for 11.1 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, in Seymour, there are 118.8 rainfall days, and 9.61" (244mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Seymour, the average length of the day in April is 13h and 21min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:17 pm. On the last day of April, sunrise is at 5:49 am and sunset at 7:49 pm EDT.

Sunshine

In April, the average sunshine is 8.4h.

UV index

In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 3 in April transforms into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What are April temperatures?

In Seymour, 56.3°F (13.5°C) is the average high-temperature and 41.2°F (5.1°C) is the average low-temperature during April.

What is the least humid month?

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

What is the average humidity in April?

The average relative humidity in April in Seymour, Connecticut, is 72%.

How much does it rain in April?

In April, the rain falls for 11.1 days. Throughout April, 0.83" (21mm) of precipitation is accumulated.

When it does not snow?

In Seymour, snow does not fall in April through October.

Does it snow in April?

In April, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Seymour have in April?

The average day length in April is 13h and 21min.

What time are sunrise and sunset in April in Seymour?

On the first day of April, sunrise is at 6:33 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:49 pm EDT.

How many hours of sunshine does Seymour have in April?

The average sunshine duration in April is 8.4h.

What is the UV index intensity in April in Seymour?

In Seymour, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Seymour, CT

Average temperature in April - Seymour, CT
  • Average high temperature in April: 56.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in April: 41.2°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in April
Seymour, CT

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Seymour, CT

Average wind speed in April - Seymour, CT
  • Average wind speed in April: 8.2mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in April
Seymour, CT

Average humidity in April - Seymour, CT
  • Average humidity in April: 72%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in April
Seymour, CT

Average rainfall in April - Seymour, CT
  • Average rainfall in April: 0.83"

The wettest month (with the highest rainfall) is July (1.22").
The driest months (with the least rainfall) are January and February (0.47").

Average rainfall days in April
Seymour, CT

Average rainfall days in April - Seymour, CT
  • Average rainfall days in April: 11.1 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in April
Seymour, CT

Average snowfall in April - Seymour, CT
  • Average snowfall in April: 0"

The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April
Seymour, CT

Average snowfall days in April - Seymour, CT
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in April /
Average sunshine in April
Seymour, CT

Average daylight in April / Average sunshine in April - Seymour, CT
  • 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 months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in April
Seymour, CT

Average sunshine days in April - Seymour, CT
  • Average sunshine days in April: 16.9 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in April
Seymour, CT

Average UV index in April - Seymour, 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).

Average cloud cover in April
Seymour, CT

Average cloud cover in April - Seymour, CT
  • Average cloud cover in April: 45

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in April
Seymour, CT

Average visibility in April - Seymour, CT
  • Average visibility in April: 6mi

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

Seymour, Connecticut, USA

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