December Weather in Deer Isle

Last updated: March 2, 2024

The weather in Deer Isle, United States, during December is characterized by an average temperature of 1°C (34°F). Highs can soar to 12°C (54°F), while lows may dip to -11°C (13°F). Typically, the humidity level in Deer Isle throughout December hovers around 84%.

-11°C (13°F)

Minimum temperature

1°C (34°F)

Average temperature

12°C (54°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

In December, Deer Isle averages 155 mm (6.1 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 8 hours 54 minutes of daylight, with the sun shining for approximately 5 hours 28 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

155 mm (6.1 inches)

Precipitation

12 rainy days

Rainy days

5 hours 28 minutes

Sunshine hours

35%

Chance of sun

UV Index

In December, the UV Index in Deer Isle reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 1 2 2 2 1 1 1 0 0 0 0
Exposure Low
Time to burn 45 min

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