April weather forecast
South Thomaston, ME

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Weather in April

April is a chilly spring month in South Thomaston, Maine, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 45.9°F (7.7°C).

Temperature

As April sets, the average high-temperature shows a slight increase, moving up from a wintry 37.6°F (3.1°C) in March to a chilly 45.9°F (7.7°C). April sees a slight dip to an average low temperature of 37.8°F (3.2°C) from the daytime highs.

Humidity

In South Thomaston, Maine, the average relative humidity in April is 79%.

Rainfall

In April, in South Thomaston, the rain falls for 15.8 days. Throughout April, 2.99" (76mm) of precipitation is accumulated. In South Thomaston, during the entire year, the rain falls for 144.8 days and collects up to 30.63" (778mm) of precipitation.

Snowfall

Months with snowfall in South Thomaston are January through April, November and December. April is the last month it regularly snows in South Thomaston. During 2 snowfall days, in April, South Thomaston aggregates 1.1" (28mm) of snow. Throughout the year, there are 33.1 snowfall days, and 12.36" (314mm) of snow is accumulated.

Ocean temperature

In April, the average ocean temperature in South Thomaston is 40.6°F (4.8°C).
Note: In the realm of swimming, this is an immediate threat to life. Total loss of control over breathing happens instantly, complicating clear thought processes. The necessity of a specialized swimsuit to restrict thermal loss is paramount.

Daylight

In South Thomaston, the average length of the day in April is 13h and 29min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:04 pm. On the last day of April, sunrise is at 5:28 am and sunset at 7:39 pm EDT.

Sunshine

In South Thomaston, the average sunshine in April is 7.6h.

UV index

The average daily maximum UV index in April in South Thomaston is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 3 during April translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in South Thomaston?

In April, the average high-temperature and low-temperature are 45.9°F (7.7°C) and 37.8°F (3.2°C) respectively.

What is the average humidity in April in South Thomaston?

In South Thomaston, Maine, the average relative humidity in April is 79%.

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

In April, in South Thomaston, Maine, the rain falls for 15.8 days. Throughout April, 2.99" (76mm) of precipitation is accumulated.

What is the last month it snows in South Thomaston?

April is the last month it regularly snows in South Thomaston, Maine. During 2 snowfall days, in April, South Thomaston aggregates 1.1" (28mm) of snow.

What is the ocean temperature in April in South Thomaston?

In South Thomaston, in April, the average water temperature is 40.6°F (4.8°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

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

In South Thomaston, the average day length in April is 13h and 29min.

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

In April, on the first day of the month, sunrise is at 6:16 am and sunset at 7:04 pm. On the last day of the month, in South Thomaston, Maine, sunrise is at 5:28 am and sunset at 7:39 pm EDT.

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

In South Thomaston, Maine, the average sunshine duration in April is 7.6h.

What is the UV index reading in April in South Thomaston?

The average daily maximum UV index in April in South Thomaston is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
South Thomaston, ME

Average temperature in April - South Thomaston, ME
  • Average high temperature in April: 45.9°F

The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in April: 37.8°F

The month with the highest average low temperature is August (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in April
South Thomaston, ME

Average pressure in April - South Thomaston, ME
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
South Thomaston, ME

Average wind speed in April - South Thomaston, ME
  • Average wind speed in April: 12.2mph

The windiest month (with the highest average wind speed) is January (14.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).

Average humidity in April
South Thomaston, ME

Average humidity in April - South Thomaston, ME
  • Average humidity in April: 79%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (75%).

Average rainfall in April
South Thomaston, ME

Average rainfall in April - South Thomaston, ME
  • Average rainfall in April: 2.99"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in April
South Thomaston, ME

Average rainfall days in April - South Thomaston, ME
  • 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 January (7.9 days).

Average snowfall in April
South Thomaston, ME

Average snowfall in April - South Thomaston, ME
  • Average snowfall in April: 1.1"

The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
South Thomaston, ME

Average snowfall days in April - South Thomaston, ME
  • Average snowfall days in April: 2 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in April
South Thomaston, ME

Average sea temperature in April - South Thomaston, ME
  • Average sea temperature in April: 40.7°F

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

Average daylight in April /
Average sunshine in April
South Thomaston, ME

Average daylight in April / Average sunshine in April - South Thomaston, ME
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in April
South Thomaston, ME

Average sunshine days in April - South Thomaston, ME
  • Average sunshine days in April: 11.5 days

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.5 days).

Average UV index in April
South Thomaston, ME

Average UV index in April - South Thomaston, ME
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in April
South Thomaston, ME

Average cloud cover in April - South Thomaston, ME
  • Average cloud cover in April: 50

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in April
South Thomaston, ME

Average visibility in April - South Thomaston, ME
  • 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).

South Thomaston, Maine, USA

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