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
As November transitions into December, Ashburnham sees a drop in the average high-temperature, transitioning from a chilly 45.1°F (7.3°C) to a cold 34.2°F (1.2°C). The low-temperature average for Ashburnham during December stands at a subzero cold 23.7°F (-4.6°C).Humidity
The average relative humidity in December in Ashburnham is 82%.Rainfall
In December, the rain falls for 8.8 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. In Ashburnham, Massachusetts, during the entire year, the rain falls for 143.2 days and collects up to 28.7" (729mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Ashburnham. In Ashburnham, during December, snow falls for 8.6 days and regularly aggregates up to 5.31" (135mm) of snow. In Ashburnham, during the entire year, snow falls for 47.7 days and aggregates up to 31.93" (811mm) 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 4:15 pm. On the last day of December, in Ashburnham, sunrise is at 7:17 am and sunset at 4:24 pm EST.
Sunshine
In Ashburnham, the average sunshine in December is 4.4h.UV index
December is the month with the lowest UV index in Ashburnham, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Ashburnham?
What is the average humidity in December in Ashburnham?
How many days does it rain in December in Ashburnham?
How much does it snow in Ashburnham in December?
What is the month with the shortest days in Ashburnham?
How many hours of daylight does Ashburnham have in December?
What time are sunrise and sunset in December in Ashburnham?
How many hours of sunshine does Ashburnham have in December?
When is the lowest UV index in Ashburnham?
What is the UV index intensity in December in Ashburnham?
Average temperature in December
Ashburnham, MA
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 23.7°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 (16.2°F).
Average pressure in December
Ashburnham, 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
Ashburnham, MA
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Ashburnham, MA
- Average humidity in December: 82%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Ashburnham, MA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Ashburnham, MA
- Average rainfall days in December: 8.8 days
The months with the highest number of rainy days are May and June (15.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Ashburnham, MA
- Average snowfall in December: 5.31"
The month with the highest snowfall is February (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ashburnham, MA
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ashburnham, 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Ashburnham, MA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in December
Ashburnham, MA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Ashburnham, MA
- Average cloud cover in December: 52
The months with the most cloud cover are February and March (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Ashburnham, MA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Ashburnham, Massachusetts, USA
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