Climate and monthly weather forecast
Iliamna, AK

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Weather in January

January, the same as December, in Iliamna, Alaska, is another subzero cold winter month, with an average temperature fluctuating between 22.6°F (-5.2°C) and 9.9°F (-12.3°C). January, with an average high of 22.6°F (-5.2°C) and a low of 9.9°F (-12.3°C), signifies the coldest month of the year. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Iliamna, Alaska, with an average temperature fluctuating between 11.7°F (-11.3°C) and 25.5°F (-3.6°C). The average high-temperature for February is a still freezing cold 25.5°F (-3.6°C), closely aligning with the temperature of the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is also a subzero cold month in Iliamna, Alaska, with an average temperature varying between 29.5°F (-1.4°C) and 14.4°F (-9.8°C). March's weather displays an average high-temperature of a still subzero cold 29.5°F (-1.4°C), slightly varied from February's 25.5°F (-3.6°C). Weather in March »

Weather in April

April in Iliamna, Alaska, is an icy spring month, with an average temperature fluctuating between 25°F (-3.9°C) and 39.2°F (4°C). April's arrival is marked by an increase in the average high-temperature, moving from a subzero cold 29.5°F (-1.4°C) in March to a wintry 39.2°F (4°C). Weather in April »

Weather in May

May, the last month of the spring in Iliamna, is a fresh month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 50.5°F (10.3°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an icy 39.2°F (4°C) in April to a fresh 50.5°F (10.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderate month in Iliamna, Alaska, with temperature in the range of an average low of 43.2°F (6.2°C) and an average high of 59°F (15°C). Iliamna's weather in June presents a minor rise in the average high-temperature, moving from a cool 50.5°F (10.3°C) in May to a moderate 59°F (15°C). Weather in June »

Weather in July

July in Iliamna, Alaska, is a refreshing summer month, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 48.4°F (9.1°C). With its high average temperature of 62.4°F (16.9°C) and a low of 48.4°F (9.1°C), July is regarded as the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is another refreshing month in Iliamna, Alaska, with an average temperature ranging between min 48°F (8.9°C) and max 61°F (16.1°C). August observes an average high-temperature of a still enjoyable 61°F (16.1°C), marking an insignificant difference from July's 62.4°F (16.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a cool month in Iliamna, Alaska, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 41.7°F (5.4°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a refreshing 61°F (16.1°C) in August to a fresh 54.1°F (12.3°C). Weather in September »

Weather in October

October, like September, in Iliamna, Alaska, is a wintry autumn month, with an average temperature fluctuating between 29.3°F (-1.5°C) and 40.8°F (4.9°C). The onset of October introduces a moderate change in Iliamna's weather, with average high-temperatures falling from September's cool 54.1°F (12.3°C) to an icy 40.8°F (4.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another freezing cold month in Iliamna, Alaska, with an average temperature ranging between min 18.3°F (-7.6°C) and max 29.8°F (-1.2°C). In Iliamna, the average high-temperature in November drops from a wintry 40.8°F (4.9°C) in October to a freezing cold 29.8°F (-1.2°C). Weather in November »

Weather in December

December, the first month of the winter in Iliamna, is also a subzero cold month, with temperature in the range of an average high of 23.2°F (-4.9°C) and an average low of 10.6°F (-11.9°C). Iliamna's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's subzero cold 29.8°F (-1.2°C) to a still freezing cold 23.2°F (-4.9°C). Weather in December »
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

With average high and low temperatures of 22.6°F (-5.2°C) and 9.9°F (-12.3°C) respectively, January is Iliamna's coldest month.

How many days does it rain?

Throughout the year, there are 133 rainfall days, and 25.55" (649mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, October through December.

How much does it snow?

In Iliamna, during the entire year, snow aggregates up to 59.21" (1504mm).

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from AKDT to AKST.

What is the driest month?

April is the month with the least rainfall. Rain falls for 8 days and accumulates 1.06" (27mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days?

With an average of 18h and 36min of daylight, June has the longest days of the year.

What is the hottest time of year?

In Iliamna, the peak average temperatures are observed in July, with a high of 62.4°F (16.9°C) and a low of 48.4°F (9.1°C).

What is the rainiest month in Iliamna?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 4.61" (117mm) of precipitation.

When does it snow the most?

December is the month with the most snowfall, with 11.81" (300mm) of accumulated snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 6h and 6min of daylight.

Average temperature
Iliamna, AK

Average temperature - Iliamna, AK

The warmest month (with the highest average high temperature) is July (62.5°F).
The month with the lowest average high temperature is January (22.6°F).

The month with the highest average low temperature is July (48.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average rainfall
Iliamna, AK

Average rainfall - Iliamna, AK

The wettest month (with the highest rainfall) is August (4.6").
The driest months (with the least rainfall) are February, March and April (1.1").

Average rainfall days
Iliamna, AK

Average rainfall days - Iliamna, AK

The months with the highest number of rainy days are August and September (16 days).
The months with the least rainy days are March and April (8 days).

Average snowfall
Iliamna, AK

Average snowfall - Iliamna, AK

The month with the highest snowfall is December (11.8").
The months with the least snowfall are June, July, August and September (0").

Average daylight
Iliamna, AK

Average daylight - Iliamna, AK

The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).

Iliamna, Alaska, USA

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