April weather forecast
Old Harbor, AK

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Weather in April

April, the same as March, is an icy spring month in Old Harbor, Alaska, with an average temperature fluctuating between 39.7°F (4.3°C) and 35.8°F (2.1°C).

Temperature

The onset of April marks an average high-temperature of a still cold 39.7°F (4.3°C), hardly differing from March's 35.8°F (2.1°C). April's average low temperature is a still icy 35.8°F (2.1°C), displaying a subtle drop from its daily peak.

Humidity

In Old Harbor, the average relative humidity in April is 82%.

Rainfall

In Old Harbor, during April, the rain falls for 15.1 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Old Harbor. In Old Harbor, during April, snow falls for 4.7 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, in Old Harbor, there are 35.1 snowfall days, and 13.74" (349mm) of snow is accumulated.

Daylight

In April, the average length of the day in Old Harbor is 14h and 23min.
On the first day of April in Old Harbor, sunrise is at 7:39 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 9:56 pm AKDT.

Sunshine

The average sunshine in April is 5.3h.

UV index

In Old Harbor, Alaska, the average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In April, a daily UV index of 2 turns into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

How cold does it get in Old Harbor in April?

In Old Harbor, in April, the average high-temperature is 39.7°F (4.3°C), and the average low-temperature is 35.8°F (2.1°C).

What is the average humidity in April in Old Harbor?

The average relative humidity in April is 82%.

How many days does it rain in April in Old Harbor?

In Old Harbor, in April, during 15.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

How much does it snow in Old Harbor in April?

In Old Harbor, Alaska, in April, during 4.7 snowfall days, 1.34" (34mm) of snow is typically accumulated.

How many hours of daylight does Old Harbor have in April?

The average day length in April in Old Harbor, Alaska, is 14h and 23min.

What time are sunrise and sunset in April in Old Harbor?

On the first day of April, sunrise is at 7:39 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 9:56 pm AKDT.

How long on average sun shines in April in Old Harbor?

In April, the average sunshine duration in Old Harbor, Alaska, is 5.3h.

How high is the UV index in April in Old Harbor?

In Old Harbor, Alaska, the average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low 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
Old Harbor, AK

Average temperature in April - Old Harbor, AK
  • Average high temperature in April: 39.7°F

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in April: 35.8°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

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Average pressure in April
Old Harbor, AK

Average pressure in April - Old Harbor, AK
  • Average pressure in April: 29.75"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).

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Average wind speed in April
Old Harbor, AK

Average wind speed in April - Old Harbor, AK
  • Average wind speed in April: 11.9mph

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in April
Old Harbor, AK

Average humidity in April - Old Harbor, AK
  • Average humidity in April: 82%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).

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Average rainfall in April
Old Harbor, AK

Average rainfall in April - Old Harbor, AK
  • Average rainfall in April: 2.68"

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

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Average rainfall days in April
Old Harbor, AK

Average rainfall days in April - Old Harbor, AK
  • Average rainfall days in April: 15.1 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

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Average snowfall in April
Old Harbor, AK

Average snowfall in April - Old Harbor, AK
  • Average snowfall in April: 1.34"

The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Old Harbor, AK

Average snowfall days in April - Old Harbor, AK
  • Average snowfall days in April: 4.7 days

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

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Average daylight in April /
Average sunshine in April
Old Harbor, AK

Average daylight in April / Average sunshine in April - Old Harbor, AK
  • Average daylight in April: 14h and 2min

The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).

  • Average sunshine in April: 5h and 2min

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).

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Average sunshine days in April
Old Harbor, AK

Average sunshine days in April - Old Harbor, AK
  • Average sunshine days in April: 10.7 days

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

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Average UV index in April
Old Harbor, AK

Average UV index in April - Old Harbor, AK
  • Average UV index in April: 2

The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in April
Old Harbor, AK

Average cloud cover in April - Old Harbor, AK
  • Average cloud cover in April: 62

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).

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Average visibility in April
Old Harbor, AK

Average visibility in April - Old Harbor, AK
  • 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).

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Old Harbor, Alaska, USA

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