Iliamna
Alaska, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Iliamna, AK

December, the first month of the winter, in Iliamna, is also a subzero cold month, with average temperature varying between 10.6°F (-11.9°C) and 23.2°F (-4.9°C).

Temperature

In December, the average high-temperature slightly decreases, from a subzero cold 29.8°F (-1.2°C) in November, to a still freezing cold 23.2°F (-4.9°C). The average low-temperature, in December, is 10.6°F (-11.9°C).

Rainfall

In Iliamna, during 10 rainfall days, 1.6" (39.4mm) of precipitation is typically accumulated. Throughout the year, in Iliamna, there are 133 rainfall days, and 25.6" (649.2mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Iliamna. December is the month with the most snowfall, with 11.8" (299.7mm) of accumulated snow.

Daylight

The month with the shortest days is December, with an average of 6.1h of daylight.

What is the temperature in December in Iliamna?

In Iliamna, in December, the average high-temperature is 23.2°F (-4.9°C), and the average low-temperature is 10.6°F (-11.9°C).

How much does it rain in Iliamna in December?

In Iliamna, Alaska, in December, it is raining for 10 days, with typically 1.6" (39.4mm) of accumulated precipitation.

How much does it snow in Iliamna in December?

In Iliamna, in December, 11.8" (299.7mm) of snow is typically accumulated.

When does it snow the most in Iliamna?

December is the month with the most snowfall in Iliamna, Alaska, with 11.8" (299.7mm) of accumulated snow.

What is the month with the shortest days in Iliamna?

December has the shortest days of the year in Iliamna, Alaska, with an average of 6.1h of daylight.

How many hours of daylight does Iliamna have in December?

In December, the average length of the day in Iliamna is 6.1h.
Average temperature in December - Iliamna, AK
  • Average high temperature in December: 23.1°F

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).

  • Average low temperature in December: 10.5°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 in December - Iliamna, AK
  • Average rainfall in December: 1.6"

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

Average rainfall days in December - Iliamna, AK
  • Average rainfall days in December: 10 days

Months with the highest number of rainy days are August and September (16 days).
Months with the lowest number of rainy days are March and April (8 days).

Average snowfall in December - Iliamna, AK
  • Average snowfall in December: 11.8"

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

Average daylight in December - Iliamna, AK
  • Average daylight in December: 6.1h

The month with the longest days is June (Average daylight: 18.6h).
The month with shortest days is December (Average daylight: 6.1h).