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
In the transition to December, South Walpole observes a drop in the average high-temperature, moving from a chilly 49.5°F (9.7°C) in November to a wintry 40.1°F (4.5°C). In South Walpole, the December nights cool down to an average low of 29.1°F (-1.6°C).Humidity
The average relative humidity in December in South Walpole is 77%.Rainfall
December is the month with the most rainfall in South Walpole. Rain falls for 10.4 days and accumulates 3.11" (79mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 4.7 days. Throughout December, 3.54" (90mm) of snow is accumulated. Throughout the year, in South Walpole, there are 30 snowfall days, and 17.05" (433mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in South Walpole.On the first day of the month, sunrise is at 6:54 am and sunset at 4:14 pm. On the last day of December, in South Walpole, Massachusetts, sunrise is at 7:13 am and sunset at 4:23 pm EST.
Sunshine
In South Walpole, Massachusetts, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index in South Walpole are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
Is it cold in South Walpole during December?
What is the average humidity in December in South Walpole?
What is the rainiest month in South Walpole?
How many days does it rain in December in South Walpole?
How much does it snow in South Walpole in December?
What is the month with the shortest days in South Walpole?
How many hours of daylight does South Walpole have in December?
When are sunrise and sunset in December in South Walpole?
How long on average sun shines in December in South Walpole?
When is the lowest UV index in South Walpole?
What is the UV index reading in December in South Walpole?
Average temperature in December
South Walpole, MA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in December
South Walpole, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
South Walpole, MA
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
South Walpole, MA
- Average humidity in December: 77%
The months with the highest relative humidity are February, September and October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
South Walpole, MA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
South Walpole, MA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
South Walpole, MA
- Average snowfall in December: 3.54"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Walpole, MA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Walpole, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
South Walpole, MA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in December
South Walpole, MA
- Average UV index in December: 2
The months with the highest UV index are June, 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
South Walpole, 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 35).
Average visibility in December
South Walpole, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
South Walpole, Massachusetts, USA
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