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 implies a gentle temperature shift, with average high-temperatures reducing from November's frosty 48.2°F (9°C) to a cold 37.9°F (3.3°C). Groveland's average low-temperature for the month of December records at a subzero cold 27.7°F (-2.4°C).Humidity
In Groveland, the average relative humidity in December is 77%.Rainfall
In Groveland, in December, during 4.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Groveland, during the entire year, the rain falls for 78.3 days and collects up to 5.43" (138mm) of precipitation.Snowfall
Months with snowfall in Groveland, Massachusetts, are January through May, November and December. The month with the most snowfall is December, when snow falls for 2.6 days and typically aggregates up to 0.71" (18mm) of snow.Daylight
The month with the shortest days in Groveland is December, with an average of 9h and 6min of daylight.On the first day of December in Groveland, sunrise is at 6:55 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:20 pm EST.
Sunshine
The average sunshine in December in Groveland, Massachusetts, is 4.9h.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 threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
How cold is it in Groveland in December?
What is the average humidity in December in Groveland?
How many days does it rain in December in Groveland?
What is the snowiest month in Groveland?
How many days does it snow in December in Groveland?
What is the month with the shortest days in Groveland?
How many hours of daylight does Groveland have in December?
When are sunrise and sunset in December in Groveland?
How long on average sun shines in December in Groveland?
What are the months with the lowest UV index in Groveland?
How high is the UV index in December in Groveland?
Average temperature in December
Groveland, MA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Groveland, 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
Groveland, MA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Groveland, MA
- Average humidity in December: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Groveland, MA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Groveland, MA
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in December
Groveland, MA
- Average snowfall in December: 0.71"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Groveland, MA
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Groveland, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Groveland, MA
- Average sunshine days in December: 23 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in December
Groveland, 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
Groveland, 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 31).
Average visibility in December
Groveland, 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).
Groveland, Massachusetts, USA
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