December weather forecastMiddleton, MA
December
Weather in December
December, the first month of the winter in Middleton, is also an icy month, with an average temperature fluctuating between 29.8°F (-1.2°C) and 39.6°F (4.2°C).Temperature
Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 48.7°F (9.3°C) in November to a wintry 39.6°F (4.2°C). Middleton records an average low of 29.8°F (-1.2°C) throughout the nights in December.Humidity
In Middleton, Massachusetts, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall 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 December, it is snowing for 5.7 days. Throughout December, 3.86" (98mm) of snow is accumulated. 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 December, sunrise is at 6:54 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:20 pm EST.
Sunshine
The average sunshine in December 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 rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, MA
- Average daylight in December: 9h and 6min
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 48min
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
Middleton, 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
Middleton, 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
Middleton, 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
Middleton, 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).
