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 comes with a shift in the average high-temperature, falling from a frosty 48.7°F (9.3°C) in November to a wintry 39.6°F (4.2°C). In Topsfield, the expected average low-temperature for December is a subzero cold 29.8°F (-1.2°C).Humidity
The average relative humidity in December is 76%.Rainfall
The month with the most rainfall in Topsfield is December, when the rain falls for 11.5 days and typically aggregates up to 2.95" (75mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Topsfield, during December, snow falls for 5.7 days and regularly aggregates up to 3.86" (98mm) of snow. Throughout the year, there are 33.3 snowfall days, and 16.46" (418mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 6:54 am and sunset at 4:11 pm. On the last day of December, sunrise is at 7:13 am and sunset at 4:20 pm EST.
Sunshine
In December, the average sunshine in Topsfield is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Topsfield have in December?
What is the month with the lowest UV index in Topsfield?
How high is the UV index in December?
Average temperature in December
Topsfield, MA
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Topsfield, 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 (29.92"Hg).
Average wind speed in December
Topsfield, MA
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Topsfield, MA
- Average humidity in December: 76%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Topsfield, MA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Topsfield, MA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in December
Topsfield, MA
- Average snowfall in December: 3.86"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Topsfield, MA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is February (9.5 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
Topsfield, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Topsfield, MA
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is September (17.5 days).
The months with the least sunshine days are February and April (13.1 days).
Average UV index in December
Topsfield, MA
- Average UV index in December: 2
The months with the highest UV index are June, 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
Topsfield, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Topsfield, 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).
Topsfield, Massachusetts, USA
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