December weather forecast
Clayton Lake, ME

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Weather in December

The first month of the winter, December, is still a freezing cold month in Clayton Lake, Maine, with an average temperature varying between 14.5°F (-9.7°C) and 25.2°F (-3.8°C).

Temperature

Stepping into December, Clayton Lake observes a temperature decline, with the average high falling from November's wintry 36.9°F (2.7°C) to a freezing cold 25.2°F (-3.8°C). During the month of December, Clayton Lake experiences a steady low-temperature average of 14.5°F (-9.7°C).

Humidity

The average relative humidity in December is 88%.

Rainfall

In Clayton Lake, in December, during 7.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Clayton Lake, during the entire year, the rain falls for 141.4 days and collects up to 29.13" (740mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 15.5 days. Throughout December, 10.71" (272mm) of snow is accumulated. In Clayton Lake, during the entire year, snow falls for 91.4 days and aggregates up to 63.82" (1621mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:02 am and sunset at 3:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:00 pm EST.

Sunshine

In Clayton Lake, the average sunshine in December is 3.2h.

UV index

The months with the lowest UV index are February, March, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Clayton Lake, records 25.2°F (-3.8°C), while the low-temperature is 14.5°F (-9.7°C).

What is the average humidity in December?

In December, the average relative humidity is 88%.

How many days does it rain in December?

In Clayton Lake, in December, during 7.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

How much does it snow in Clayton Lake in December?

In Clayton Lake, in December, snow falls for 15.5 days, with typically accumulated 10.71" (272mm) of snow.

What is the month with the shortest days?

With an average of 8h and 36min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length in Clayton Lake is 8h and 38min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:02 am and sunset at 3:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:00 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration in Clayton Lake is 3.2h.

When is the lowest UV index?

February, March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Clayton Lake.

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Clayton Lake, ME

Average temperature in December - Clayton Lake, ME
  • Average high temperature in December: 25.2°F

The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in December: 14.5°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).

Average pressure in December
Clayton Lake, ME

Average pressure in December - Clayton Lake, ME
  • Average pressure in December: 30.01"Hg

The months with the highest atmospheric pressure are September and November (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Clayton Lake, ME

Average wind speed in December - Clayton Lake, ME
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Clayton Lake, ME

Average humidity in December - Clayton Lake, ME
  • Average humidity in December: 88%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (74%).

Average rainfall in December
Clayton Lake, ME

Average rainfall in December - Clayton Lake, ME
  • Average rainfall in December: 2.56"

The wettest months (with the highest rainfall) are June and July (2.76").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in December
Clayton Lake, ME

Average rainfall days in December - Clayton Lake, ME
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (3.5 days).

Average snowfall in December
Clayton Lake, ME

Average snowfall in December - Clayton Lake, ME
  • Average snowfall in December: 10.71"

The month with the highest snowfall is February (12.68").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Clayton Lake, ME

Average snowfall days in December - Clayton Lake, ME
  • Average snowfall days in December: 15.5 days

The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Clayton Lake, ME

Average daylight in December / Average sunshine in December - Clayton Lake, ME
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).

Average sunshine days in December
Clayton Lake, ME

Average sunshine days in December - Clayton Lake, ME
  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is November (14.7 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in December
Clayton Lake, ME

Average UV index in December - Clayton Lake, ME
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are February, March, November and December (UV index 1).

Average cloud cover in December
Clayton Lake, ME

Average cloud cover in December - Clayton Lake, ME
  • Average cloud cover in December: 69

The month with the most cloud cover is February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 42).

Average visibility in December
Clayton Lake, ME

Average visibility in December - Clayton Lake, ME
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).

Clayton Lake, Maine, USA

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