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 beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 46.4°F (8°C) in November to an icy 35.8°F (2.1°C). An average nighttime temperature of 25°F (-3.9°C) is recorded during December.Humidity
In December, the average relative humidity is 82%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 157.5 rainfall days, and 32.64" (829mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ashley Falls, in December, during 9.8 snowfall days, 5.67" (144mm) of snow is typically accumulated. In Ashley Falls, during the entire year, snow falls for 51.4 days and aggregates up to 28.27" (718mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:31 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. 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
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Ashley Falls have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Ashley Falls, MA
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in December: 25°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in December
Ashley Falls, MA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Ashley Falls, MA
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Ashley Falls, MA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Ashley Falls, MA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Ashley Falls, MA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Ashley Falls, MA
- Average snowfall in December: 5.67"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ashley Falls, MA
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ashley Falls, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Ashley Falls, MA
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in December
Ashley Falls, 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, November and December (UV index 2).
Average cloud cover in December
Ashley Falls, MA
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Ashley Falls, 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).
Ashley Falls, Massachusetts, USA
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