| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in Attu Island, Alaska in December is very cool at 0.5 °C (32.9 °F).
- Afternoons can be very cool with average high temperatures reaching 2 °C (35.6 °F).
- Overnight temperatures are generally slightly cold with an average low of -1 °C (30.2 °F).
- The variation/ range of diurnal mean temperatures in December is 3 °C (5.4 °F).
- The weather in December is not exactly dry with endless sleet or snow. Some 128mm (5in) of H2O tumbles across on average 29 days.
- The shortest day is 7:35 long and the longest day is 7:56 long with an average length of 7:41.
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Weather Trend Graph for December in Attu Island, Alaska, Usa
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