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
A shift in the average high-temperature occurs in December, reducing from a chilly 43.3°F (6.3°C) in November to a cold 32.2°F (0.1°C). An average nighttime temperature of 21.6°F (-5.8°C) is witnessed throughout December.Humidity
In Orono, the average relative humidity in December is 81%.Rainfall
December is the month with the most rainfall. Rain falls for 10.6 days and accumulates 3.27" (83mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Orono. In December, it is snowing for 11.2 days. Throughout December, 6.61" (168mm) of snow is accumulated. Throughout the year, there are 61.1 snowfall days, and 36.34" (923mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:52 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:03 pm EST.
Sunshine
In Orono, the average sunshine in December is 4.3h.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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the wettest month?
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 Orono have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Orono, ME
- Average high temperature in December: 32.2°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Orono, ME
- Average pressure in December: 30"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
Orono, ME
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Orono, ME
- Average humidity in December: 81%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Orono, ME
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.61").
Average rainfall days in December
Orono, ME
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Orono, ME
- Average snowfall in December: 6.61"
The month with the highest snowfall is January (8.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Orono, ME
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Orono, 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 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Orono, ME
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (10.1 days).
Average UV index in December
Orono, 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
Orono, ME
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in December
Orono, ME
- Average visibility in December: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (5mi).
Orono, Maine, USA
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