April weather forecast and climate
Katalla, AK

Weather in April

April, the same as March, is another cold spring month in Katalla, Alaska, with average temperature ranging between min 32°F (0°C) and max 40.6°F (4.8°C).

Temperature

In Katalla, the average high-temperature slightly increases, from 34.2°F (1.2°C) in March, to a still wintry 40.6°F (4.8°C). The average low-temperature, is 32°F (0°C).

Humidity

In Katalla, Alaska, the average relative humidity in April is 79%.

Rainfall

In Katalla, Alaska, in April, it is raining for 15.4 days, with typically 3.9" (99mm) of accumulated precipitation. Throughout the year, there are 191.3 rainfall days, and 72.4" (1839mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Katalla, during April, snow falls for 8.6 days and regularly aggregates up to 6.77" (172mm) of snow. Throughout the year, in Katalla, there are 66.1 snowfall days, and 74.57" (1894mm) of snow is accumulated.

Daylight

The average length of the day in April is 14.7h.

Sunshine

In Katalla, the average sunshine is 6.4h.

UV index

The average daily maximum UV index in April is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Katalla?

In April, in Katalla, the average high-temperature is 40.6°F (4.8°C), and the average low-temperature is 32°F (0°C).

What is the average humidity in April in Katalla?

In April, the average relative humidity in Katalla is 79%.

How many days does it rain in April in Katalla?

In Katalla, Alaska, in April, it is raining for 15.4 days, with typically 3.9" (99mm) of accumulated precipitation.

How much does it snow in Katalla in April?

In Katalla, Alaska, during April, snow falls for 8.6 days and regularly aggregates up to 6.77" (172mm) of snow.

What is the average length of the day in April in Katalla?

In Katalla, the average length of the day in April is 14.7h.

How long on average sun shines in April in Katalla?

The average sunshine in April in Katalla is 6.4h.

How high is the UV index in April in Katalla?

In April, the average daily maximum UV index in Katalla is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in April
Katalla, AK

Average temperature in April - Katalla, AK
  • Average high temperature in April: 40.6°F

The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in April: 32°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in April
Katalla, AK

Average pressure in April - Katalla, AK
  • Average pressure in April: 29.85"

The month with the highest atmospheric pressure is July (30").
The month with the lowest atmospheric pressure is November (29.65").

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Average wind speed in April
Katalla, AK

Average wind speed in April - Katalla, AK
  • Average wind speed in April: 7.5mph

The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).

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Average humidity in April
Katalla, AK

Average humidity in April - Katalla, AK
  • Average humidity in April: 79%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in April
Katalla, AK

Average rainfall in April - Katalla, AK
  • Average rainfall in April: 3.9"

The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").

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Average rainfall days in April
Katalla, AK

Average rainfall days in April - Katalla, AK
  • Average rainfall days in April: 15.4 days

The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).

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Average snowfall in April
Katalla, AK

Average snowfall in April - Katalla, AK
  • Average snowfall in April: 6.77"

The month with the highest snowfall is December (17.76").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Katalla, AK

Average snowfall days in April - Katalla, AK
  • Average snowfall days in April: 8.6 days

The month with the highest number of snowfall days is December (12.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Katalla, AK

Average daylight in April / Average sunshine in April - Katalla, AK
  • Average daylight in April: 14.7h

The month with the longest days is June (Average daylight: 18.8h).
The month with the shortest days is December (Average daylight: 6h).

  • Average sunshine in April: 6.4h

Months with the most sunshine are May, June and July (Average sunshine: 7.6h).
The month with the least sunshine is December (Average sunshine: 2.1h).

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Average sunshine days in April
Katalla, AK

Average sunshine days in April - Katalla, AK
  • Average sunshine days in April: 9.3 days

The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).

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Average UV index in April
Katalla, AK

Average UV index in April - Katalla, AK
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in April
Katalla, AK

Average cloud cover in April - Katalla, AK
  • Average cloud cover in April: 58

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).

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Average visibility in April
Katalla, AK

Average visibility in April - Katalla, AK
  • Average visibility in April: 6mi

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

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