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

December weather forecast and climate
Gustavus, AK

Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view
Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view
December, the first month of the winter, in Gustavus, is also a wintry month, with average temperature fluctuating between 24.3°F (-4.3°C) and 33.8°F (1°C).

Temperature

In Gustavus, the average high-temperature is practically the same as in November - a still wintry 33.8°F (1°C). The average low-temperature, in Gustavus, Alaska, is 24.3°F (-4.3°C).

Rainfall

In Gustavus, during December, the rain falls for 20 days and regularly aggregates up to 6" (153.2mm) of precipitation. In Gustavus, during the entire year, the rain falls for 217 days and collects up to 55.7" (1415.3mm) of precipitation.

Snowfall

Months with snowfall in Gustavus, Alaska, are January through May, October through December. Throughout December, 16.7" (424.2mm) of snow is accumulated. Throughout the year, in Gustavus, 76" (1930.4mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 6.5h of daylight.

What is the temperature in December in Gustavus?

In December, the average high-temperature is 33.8°F (1°C), and the average low-temperature is 24.3°F (-4.3°C).

How much does it rain in Gustavus in December?

In Gustavus, Alaska, in December, it is raining for 20 days, with typically 6" (153.2mm) of accumulated precipitation.

How much does it snow in Gustavus in December?

In Gustavus, Alaska, in December, 16.7" (424.2mm) of snow is typically accumulated.

What is the month with the shortest days in Gustavus?

December has the shortest days of the year, with an average of 6.5h of daylight.

What is the average length of the day in December in Gustavus?

In Gustavus, the average length of the day in December is 6.5h.
Average temperature in December - Gustavus, AK
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (63.4°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 24.3°F

The month with the highest average low temperature is July (48.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average rainfall in December - Gustavus, AK
  • Average rainfall in December: 6"

The wettest month (with the highest rainfall) is October (8.6").
The driest month (with the lowest rainfall) is April (2.5").

Average rainfall days in December - Gustavus, AK
  • Average rainfall days in December: 20 days

The month with the highest number of rainy days is October (24 days).
The month with the lowest number of rainy days is June (15 days).

Average snowfall in December - Gustavus, AK
  • Average snowfall in December: 16.7"

The month with the highest snowfall is January (19.7").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in December - Gustavus, AK
  • Average daylight in December: 6.5h

The month with the longest days is June (Average daylight: 18.2h).
The month with shortest days is December (Average daylight: 6.5h).