April weather forecast
Port Clarence, AK

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Weather in April

April is a freezing cold spring month in Port Clarence, Alaska, with temperature in the range of an average high of 23.2°F (-4.9°C) and an average low of 13.3°F (-10.4°C).

Temperature

Port Clarence's weather in April shows a rise in the average high-temperature, moving up from March's extreme cold 11.7°F (-11.3°C) to a subzero cold 23.2°F (-4.9°C). Port Clarence experiences a mean low-temperature of 13.3°F (-10.4°C) during April.

Humidity

In Port Clarence, the average relative humidity in April is 91%.

Rainfall

In Port Clarence, Alaska, in April, during 4.1 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 86.5 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. In Port Clarence, during April, snow falls for 13 days and regularly aggregates up to 2.91" (74mm) of snow. In Port Clarence, during the entire year, snow falls for 90 days and aggregates up to 20.51" (521mm) of snow.

Daylight

In Port Clarence, the average length of the day in April is 15h and 22min.
On the first day of April, sunrise is at 8:18 am and sunset at 10:03 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 11:39 pm AKDT.

Sunshine

In Port Clarence, Alaska, the average sunshine in April is 4.7h.

UV index

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 1 in April, converts into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is April?

The high-temperature, in April, in Port Clarence, is 23.2°F (-4.9°C), while the low-temperature averages to 13.3°F (-10.4°C).

What is the average humidity in April?

In Port Clarence, the average relative humidity in April is 91%.

How many days does it rain in April?

In Port Clarence, in April, it is raining for 4.1 days, with typically 0.87" (22mm) of accumulated precipitation.

How many days does it snow in April?

In Port Clarence, during April, snow falls for 13 days and regularly aggregates up to 2.91" (74mm) of snow.

What is the average length of the day in April?

The average day length in April is 15h and 22min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 8:18 am and sunset at 10:03 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 11:39 pm AKDT.

How long on average sun shines in April?

The average sunshine duration in April is 4.7h.

What are the months with the lowest UV index?

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in April in Port Clarence?

In Port Clarence, the average daily maximum UV index in April is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Port Clarence, AK

Average temperature in April - Port Clarence, AK
  • Average high temperature in April: 23.2°F

The warmest month (with the highest average high temperature) is August (50°F).
The month with the lowest average high temperature is January (9°F).

  • Average low temperature in April: 13.3°F

The month with the highest average low temperature is August (45.3°F).
The coldest months (with the lowest average low temperature) are February and March (1.8°F).

Average pressure in April
Port Clarence, AK

Average pressure in April - Port Clarence, AK
  • Average pressure in April: 29.89"Hg

The month with the highest atmospheric pressure is May (29.96"Hg).
The month with the lowest atmospheric pressure is October (29.72"Hg).

Average wind speed in April
Port Clarence, AK

Average wind speed in April - Port Clarence, AK
  • Average wind speed in April: 13.2mph

The windiest month (with the highest average wind speed) is December (17.5mph).
The calmest month (with the lowest average wind speed) is May (12mph).

Average humidity in April
Port Clarence, AK

Average humidity in April - Port Clarence, AK
  • Average humidity in April: 91%

The month with the highest relative humidity is March (93%).
The months with the lowest relative humidity are October and November (79%).

Average rainfall in April
Port Clarence, AK

Average rainfall in April - Port Clarence, AK
  • Average rainfall in April: 0.87"

The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in April
Port Clarence, AK

Average rainfall days in April - Port Clarence, AK
  • Average rainfall days in April: 4.1 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (1.3 days).

Average snowfall in April
Port Clarence, AK

Average snowfall in April - Port Clarence, AK
  • Average snowfall in April: 2.91"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are July and August (0").

Average snowfall days in April
Port Clarence, AK

Average snowfall days in April - Port Clarence, AK
  • Average snowfall days in April: 13 days

The month with the highest number of snowfall days is April (13 days).
The month with the least snowfall days is July (0 days).

Average daylight in April /
Average sunshine in April
Port Clarence, AK

Average daylight in April / Average sunshine in April - Port Clarence, AK
  • Average daylight in April: 15h and 2min

The month with the longest days is June (Average daylight: 22h and 0min).
The month with the shortest days is December (Average daylight: 3h and 42min).

  • Average sunshine in April: 4h and 4min

The month with the most sunshine is August (Average sunshine: 5h and 42min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).

Average sunshine days in April
Port Clarence, AK

Average sunshine days in April - Port Clarence, AK
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is June (18.4 days).
The month with the least sunshine days is October (11.1 days).

Average UV index in April
Port Clarence, AK

Average UV index in April - Port Clarence, AK
  • Average UV index in April: 1

The month with the highest UV index is July (UV index 3).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

Average cloud cover in April
Port Clarence, AK

Average cloud cover in April - Port Clarence, AK
  • Average cloud cover in April: 73

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is June (Cloud cover 52).

Average visibility in April
Port Clarence, AK

Average visibility in April - Port Clarence, AK
  • Average visibility in April: 5mi

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

Port Clarence, Alaska, USA

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