December weather forecastRehoboth, MA
December
Weather in December
The first month of the winter, December, is still a cold month in Rehoboth, Massachusetts, with temperature in the range of an average low of 30.2°F (-1°C) and an average high of 40.8°F (4.9°C).Temperature
December brings a drop in Rehoboth's average high-temperature, falling from a fresh 50.5°F (10.3°C) in November to a wintry 40.8°F (4.9°C). An average low-temperature of 30.2°F (-1°C) is expected during December.Humidity
The average relative humidity in December is 76%.Rainfall
In Rehoboth, in December, during 11.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 144.3 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 3.9 days. Throughout December, 1.42" (36mm) of snow is accumulated. Throughout the year, there are 22 snowfall days, and 7.83" (199mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:24 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rehoboth, MA
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Rehoboth, 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 (29.93"Hg).
Average wind speed in December
Rehoboth, MA
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Rehoboth, MA
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Rehoboth, MA
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Rehoboth, MA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Rehoboth, MA
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Rehoboth, MA
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (5.9 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
Rehoboth, MA
- Average daylight in December: 9h and 12min
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 54min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Rehoboth, MA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Rehoboth, 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
Rehoboth, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Rehoboth, 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).
