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 onset of December brings a small change in high-temperatures, falling from a chilly 44.8°F (7.1°C) in November to an icy 34.5°F (1.4°C). During December, East Otis records an average temperature of 23.7°F (-4.6°C) at night.Humidity
In East Otis, the average relative humidity in December is 83%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.8 days and typically aggregates up to 3.62" (92mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in East Otis. In East Otis, Massachusetts, in December, during 10.6 snowfall days, 6.73" (171mm) of snow is typically accumulated. In East Otis, during the entire year, snow falls for 61.5 days and aggregates up to 38.74" (984mm) of snow.Daylight
December has the shortest days of the year in East Otis, Massachusetts, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:30 pm EST.
Sunshine
In East Otis, the average sunshine in December is 4.3h.UV index
January through March, October through 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 the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is December in East Otis?
What is the average humidity in December in East Otis?
What is the rainiest month in East Otis?
How many days does it rain in December in East Otis?
How many days does it snow in December in East Otis?
What is the month with the shortest days in East Otis?
What is the average length of the day in December in East Otis?
When are sunrise and sunset in December in East Otis?
How many hours of sunshine does East Otis have in December?
What are the months with the lowest UV index in East Otis?
What is the UV index intensity in December in East Otis?
Average temperature in December
East Otis, MA
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in December
East Otis, MA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
East Otis, MA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
East Otis, MA
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
East Otis, MA
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is December (3.62").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in December
East Otis, MA
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
East Otis, MA
- Average snowfall in December: 6.73"
The month with the highest snowfall is February (9.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
East Otis, MA
- Average snowfall days in December: 10.6 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
East Otis, 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
East Otis, MA
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
East Otis, MA
- 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, October, November and December (UV index 2).
Average cloud cover in December
East Otis, MA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
East Otis, MA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
East Otis, Massachusetts, USA
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