Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December comes with a decrease in the average high-temperature, falling from a frosty 45.3°F (7.4°C) in November to a wintry 35.1°F (1.7°C). Gray's temperature during December nights registers a minor decrease to an average low of 26.1°F (-3.3°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 10.1 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. In Gray, during the entire year, the rain falls for 132.8 days and collects up to 19.88" (505mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Gray, in December, during 6.2 snowfall days, 1.97" (50mm) of snow is typically accumulated. In Gray, during the entire year, snow falls for 31.2 days and aggregates up to 10.94" (278mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:56 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:13 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.7h of sunshine.UV index
January through March, November and 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Gray have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Gray have in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Gray?
Average temperature in December
Gray, ME
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (74.7°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Gray, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Gray, ME
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Gray, ME
- Average humidity in December: 77%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Gray, ME
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is October (2.28").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Gray, ME
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Gray, ME
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Gray, ME
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Gray, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Gray, ME
- Average sunshine days in December: 16.5 days
The months with the most sunshine days are January and September (18.5 days).
The month with the least sunshine days is April (13 days).
Average UV index in December
Gray, 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, November and December (UV index 2).
Average cloud cover in December
Gray, ME
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Gray, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Gray, Maine, USA
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