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
With the onset of December, Ashby's average high-temperature adjusts, receding from November's chilly 46.8°F (8.2°C) to a wintry 36.5°F (2.5°C). Ashby usually reports an average low-temperature of 25.7°F (-3.5°C) during the month of December.Humidity
In December, the average relative humidity is 79%.Rainfall
The month with the most rainfall in Ashby, Massachusetts, is December, when the rain falls for 10.7 days and typically aggregates up to 2.99" (76mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ashby, Massachusetts, in December, during 6.9 snowfall days, 4.37" (111mm) of snow is typically accumulated. In Ashby, Massachusetts, during the entire year, snow falls for 38.7 days and aggregates up to 23.7" (602mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:58 am and sunset at 4:14 pm. On the last day of December, in Ashby, Massachusetts, sunrise is at 7:17 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ashby. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Ashby in December?
What is the average humidity in December in Ashby?
What is the rainiest month in Ashby?
How many days does it rain in December in Ashby?
How much does it snow in Ashby in December?
What is the month with the shortest days in Ashby?
What is the average length of the day in December in Ashby?
What time are sunrise and sunset in December in Ashby?
How long on average sun shines in December in Ashby?
What are the months with the lowest UV index in Ashby?
How high is the UV index in December in Ashby?
Average temperature in December
Ashby, MA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Ashby, MA
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Ashby, MA
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Ashby, MA
- Average humidity in December: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Ashby, MA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Ashby, MA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Ashby, MA
- Average snowfall in December: 4.37"
The month with the highest snowfall is February (6.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ashby, MA
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ashby, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Ashby, MA
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Ashby, MA
- Average UV index in December: 2
The months with the highest UV index are June and July (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
Ashby, MA
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Ashby, 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).
Ashby, Massachusetts, USA
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