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 minor decrease in the average high-temperature is observed during December, shifting from a cool 50.9°F (10.5°C) in November to an icy 42.4°F (5.8°C). Bourne's nighttime temperatures in December reveal a minimal variation from the daytime highs, averaging at a still wintry 34.2°F (1.2°C).Humidity
In Bourne, Massachusetts, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.5 days and typically aggregates up to 3.58" (91mm) of precipitation.Snowfall
Months with snowfall in Bourne are January through April, October through December. In Bourne, in December, during 3.5 snowfall days, 1.26" (32mm) of snow is typically accumulated. Throughout the year, there are 21.7 snowfall days, and 8.43" (214mm) of snow is accumulated.Daylight
December has the shortest days of the year in Bourne, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:12 pm. On the last day of December, in Bourne, sunrise is at 7:09 am and sunset at 4:21 pm EST.
Sunshine
The months with the least sunshine in Bourne are February and December, with an average of 4.8h 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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Bourne?
What is the average humidity in December in Bourne?
What is the wettest month in Bourne?
How much does it rain in Bourne in December?
How many days does it snow in December in Bourne?
What is the month with the shortest days in Bourne?
How many hours of daylight does Bourne have in December?
When is the sunrise / sunset in December in Bourne?
What are the months with the least sunshine in Bourne?
How long on average sun shines in December in Bourne?
What are the months with the lowest UV index in Bourne?
How high is the UV index in December in Bourne?
Average temperature in December
Bourne, MA
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Bourne, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Bourne, MA
- Average wind speed in December: 13mph
The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in December
Bourne, MA
- Average humidity in December: 76%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in December
Bourne, MA
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Bourne, MA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Bourne, MA
- Average snowfall in December: 1.26"
The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Bourne, MA
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bourne, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Bourne, MA
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in December
Bourne, MA
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Bourne, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Bourne, MA
- 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).
Bourne, Massachusetts, USA
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