December weather forecast
Prospect, ME

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Weather in December

December, the first month of the winter in Prospect, is also a wintry month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 33.3°F (0.7°C).

Temperature

Prospect's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 44.4°F (6.9°C) to a cold 33.3°F (0.7°C). Prospect, in December, witnesses an average low-temperature of 22.8°F (-5.1°C).

Humidity

In Prospect, Maine, the average relative humidity in December is 80%.

Rainfall

In Prospect, in December, during 10.6 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Prospect, during the entire year, the rain falls for 144.3 days and collects up to 24.61" (625mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Prospect, during December, snow falls for 8.9 days and regularly aggregates up to 2.8" (71mm) of snow. In Prospect, during the entire year, snow falls for 46.8 days and aggregates up to 19.61" (498mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 6:52 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:05 pm EST.

Sunshine

In December, the average sunshine is 4.4h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 33.3°F (0.7°C) and a low-temperature of 22.8°F (-5.1°C).

What is the average humidity in December?

In December, the average relative humidity in Prospect is 80%.

How many days does it rain in December?

In Prospect, during December, the rain falls for 10.6 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How many days does it snow in December?

In Prospect, in December, during 8.9 snowfall days, 2.8" (71mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 8h and 54min of daylight, December has the shortest days of the year.

How many hours of daylight does Prospect have in December?

In December, the average day length in Prospect is 8h and 53min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:52 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:05 pm EST.

How many hours of sunshine does Prospect have in December?

In December, the average sunshine duration in Prospect is 4.4h.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Prospect, ME

Average temperature in December - Prospect, ME
  • Average high temperature in December: 33.3°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in December
Prospect, ME

Average pressure in December - Prospect, ME
  • Average pressure in December: 29.99"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Prospect, ME

Average wind speed in December - Prospect, ME
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Prospect, ME

Average humidity in December - Prospect, ME
  • Average humidity in December: 80%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and November (77%).

Average rainfall in December
Prospect, ME

Average rainfall in December - Prospect, ME
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is July (1.42").

Average rainfall days in December
Prospect, ME

Average rainfall days in December - Prospect, ME
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in December
Prospect, ME

Average snowfall in December - Prospect, ME
  • Average snowfall in December: 2.8"

The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Prospect, ME

Average snowfall days in December - Prospect, ME
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is February (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Prospect, ME

Average daylight in December / Average sunshine in December - Prospect, ME
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in December
Prospect, ME

Average sunshine days in December - Prospect, ME
  • Average sunshine days in December: 14.6 days

The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.6 days).

Average UV index in December
Prospect, ME

Average UV index in December - Prospect, ME
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Prospect, ME

Average cloud cover in December - Prospect, ME
  • Average cloud cover in December: 52

The months with the most cloud cover are February, March and April (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 39).

Average visibility in December
Prospect, ME

Average visibility in December - Prospect, ME
  • Average visibility in December: 6mi

The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).

Prospect, Maine, USA

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