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
December brings a slight decrease in the average high-temperature, shifting from a chilly 48.4°F (9.1°C) in November to an icy 39.7°F (4.3°C). Hamilton's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a freezing cold 31.1°F (-0.5°C).Humidity
The average relative humidity in December is 76%.Rainfall
In December, in Hamilton, Massachusetts, the rain falls for 7.7 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 113.7 rainfall days, and 9.69" (246mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Hamilton. In Hamilton, during December, snow falls for 4.5 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, there are 23.9 snowfall days, and 3.35" (85mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Hamilton.On the first day of the month, sunrise is at 6:54 am and sunset at 4:10 pm. On the last day of December, in Hamilton, sunrise is at 7:13 am and sunset at 4:20 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.9h 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 in Hamilton. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
Is it cold in Hamilton during December?
What is the average humidity in December in Hamilton?
How many days does it rain in December in Hamilton?
How much does it snow in Hamilton in December?
What is the month with the shortest days in Hamilton?
What is the average length of the day in December in Hamilton?
When are sunrise and sunset in December in Hamilton?
What is the month with the least sunshine in Hamilton?
How many hours of sunshine does Hamilton have in December?
What are the months with the lowest UV index in Hamilton?
What is the UV index reading in December in Hamilton?
Average temperature in December
Hamilton, MA
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in December
Hamilton, 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
Hamilton, MA
- Average wind speed in December: 12.6mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in December
Hamilton, MA
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Hamilton, MA
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Hamilton, MA
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in December
Hamilton, MA
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hamilton, MA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hamilton, 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 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Hamilton, MA
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (16 days).
Average UV index in December
Hamilton, 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
Hamilton, MA
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Hamilton, 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).
Hamilton, Massachusetts, USA
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