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
Princeton's average high-temperature decreases in December, falling from a wintry 42.6°F (5.9°C) in November to a freezing cold 31.5°F (-0.3°C). Princeton reports an average low-temperature of 20.7°F (-6.3°C) during the nights of December.Humidity
In Princeton, the average relative humidity in December is 83%.Rainfall
In December, the rain falls for 6.7 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Princeton, during the entire year, the rain falls for 96.3 days and collects up to 9.45" (240mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Princeton. In December, it is snowing for 8.1 days. Throughout December, 1.5" (38mm) of snow is accumulated. Throughout the year, there are 45.4 snowfall days, and 9.69" (246mm) of snow is accumulated.Daylight
December has the shortest days of the year in Princeton, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 6:49 am and sunset at 3:49 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 3:57 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Princeton. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Princeton?
What is the average humidity in December in Princeton?
How many days does it rain in December in Princeton?
How much does it snow in Princeton in December?
What is the month with the shortest days in Princeton?
What is the average length of the day in December in Princeton?
What time are sunrise and sunset in December in Princeton?
How long on average sun shines in December in Princeton?
What are the months with the lowest UV index in Princeton?
What is the UV index reading in December in Princeton?
Average temperature in December
Princeton, ME
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Princeton, ME
- Average pressure in December: 29.99"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Princeton, ME
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Princeton, ME
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Princeton, ME
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is November (1.06").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in December
Princeton, ME
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is June (11.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Princeton, ME
- Average snowfall in December: 1.5"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Princeton, ME
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Princeton, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Princeton, ME
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is September (21 days).
The month with the least sunshine days is April (15.9 days).
Average UV index in December
Princeton, ME
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Princeton, ME
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in December
Princeton, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Princeton, Maine, USA
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