April weather forecast and climate
Old Harbor, AK

Weather in April

April, like March, in Old Harbor, Alaska, is a wintry spring month, with average temperature ranging between min 35.8°F (2.1°C) and max 39.7°F (4.3°C).

Temperature

In Old Harbor, the average high-temperature is practically the same as in March - a still cold 39.7°F (4.3°C). In April, in Old Harbor, the average low-temperature is 35.8°F (2.1°C).

Humidity

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, in Old Harbor, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In Old Harbor, snow falls for 4.7 days, with typically accumulated 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 is 14.4h.

Sunshine

In April, the average sunshine is 5.3h.

UV index

In Old Harbor, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Old Harbor?

In April, in Old Harbor, Alaska, 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?

In Old Harbor, Alaska, 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, in April, snow falls for 4.7 days, with typically accumulated 1.34" (34mm) of snow.

What is the average length of the day in April in Old Harbor?

In April, the average length of the day in Old Harbor is 14.4h.

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

In April, the average sunshine is 5.3h.

What is the UV index reading in April in Old Harbor?

The average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.

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"

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

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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%).
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").
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).
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: 14.4h

The month with the longest days is June (Average daylight: 17.8h).
The month with the shortest days is December (Average daylight: 6.8h).

  • Average sunshine in April: 5.3h

The month with the most sunshine is July (Average sunshine: 8.3h).
Months with the least sunshine are January and December (Average sunshine: 2.6).

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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

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

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

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