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
The transition into December indicates a reduction in the average high-temperature, down to a subzero cold 23.7°F (-4.6°C) from November's wintry 36.5°F (2.5°C). Saint Francis observes an average nighttime low-temperature of 12.2°F (-11°C) during the month of December.Humidity
The average relative humidity in December is 90%.Rainfall
In Saint Francis, in December, during 7.4 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, in Saint Francis, there are 142 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Saint Francis, in December, snow falls for 18.4 days, with typically accumulated 12.2" (310mm) of snow. Throughout the year, there are 106.5 snowfall days, and 71.89" (1826mm) of snow is accumulated.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 7:01 am and sunset at 3:47 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 3:55 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Saint Francis?
How many hours of daylight does Saint Francis have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Saint Francis have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Saint Francis, ME
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 12.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in December
Saint Francis, ME
- Average pressure in December: 30"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Saint Francis, ME
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Saint Francis, ME
- Average humidity in December: 90%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Saint Francis, ME
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in December
Saint Francis, ME
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (16.7 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in December
Saint Francis, ME
- Average snowfall in December: 12.2"
The month with the highest snowfall is January (14.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Francis, ME
- Average snowfall days in December: 18.4 days
The month with the highest number of snowfall days is February (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Francis, ME
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 12min).
Average sunshine days in December
Saint Francis, ME
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is March (8 days).
Average UV index in December
Saint Francis, 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 January, February, March, November and December (UV index 1).
Average cloud cover in December
Saint Francis, ME
- Average cloud cover in December: 69
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in December
Saint Francis, ME
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Saint Francis, Maine, USA
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