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
Welcoming December, Deerfield observes a shift in the average high-temperature, falling from November's frosty 46°F (7.8°C) to a cold 35.4°F (1.9°C). In December, Deerfield's temperature tends to fall to an average low of 24.3°F (-4.3°C) during the night.Humidity
In Deerfield, the average relative humidity in December is 81%.Rainfall
December is the month with the most rainfall. Rain falls for 10.9 days and accumulates 3.07" (78mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Deerfield, in December, during 6.4 snowfall days, 4.33" (110mm) of snow is typically accumulated. In Deerfield, during the entire year, snow falls for 38.7 days and aggregates up to 23.07" (586mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Deerfield.On the first day of December, sunrise is at 7:01 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:27 pm EST.
Sunshine
The average sunshine in December is 4.9h.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 low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is December in Deerfield?
What is the average humidity in December in Deerfield?
What is the wettest month in Deerfield?
How much does it rain in Deerfield in December?
How many days does it snow in December in Deerfield?
What is the month with the shortest days in Deerfield?
What is the average length of the day in December in Deerfield?
When is the sunrise / sunset in December in Deerfield?
How many hours of sunshine does Deerfield have in December?
When is the lowest UV index in Deerfield?
What is the UV index intensity in December in Deerfield?
Average temperature in December
Deerfield, MA
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Deerfield, MA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Deerfield, MA
- Average wind speed in December: 7.7mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Deerfield, MA
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Deerfield, MA
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Deerfield, MA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Deerfield, MA
- Average snowfall in December: 4.33"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deerfield, MA
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deerfield, 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 July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Deerfield, MA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Deerfield, MA
- Average UV index in December: 2
The months with the highest UV index are May, 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
Deerfield, MA
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Deerfield, MA
- Average visibility in December: 6mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Deerfield, Massachusetts, USA
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