Weather in December
Temperature
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). December nights are marked by an average temperature drop to an extreme cold 10.6°F (-11.9°C).Rainfall
In Iliamna, in December, during 10 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 133 rainfall days, and 25.55" (649mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Iliamna is December, when 11.81" (300mm) of snow is typically aggregated.Daylight
The month with the shortest days is December, with an average of 6h and 6min of daylight.On the first day of December, sunrise is at 9:54 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 10:19 am and sunset at 4:26 pm AKST.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Iliamna in December?
How many days does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
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").
The driest months (with the least rainfall) are February, March and April (1.1").
Average rainfall days in December
Iliamna, AK
- Average rainfall days in December: 10 days
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 in December
Iliamna, AK
- Average snowfall in December: 11.8"
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 in December
Iliamna, AK
- Average daylight in December: 6h and 1min
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
Weather forecast for your location
2. Allow the app to use your location