December weather forecastHillsgrove, RI
December
Weather in December
The first month of the winter, December, is also an icy month in Hillsgrove, Rhode Island, with temperature in the range of an average high of 40.8°F (4.9°C) and an average low of 30.7°F (-0.7°C).Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a cool 50.4°F (10.2°C) in November to an icy 40.8°F (4.9°C). In the month of December, Hillsgrove witnesses a consistent average low-temperature of 30.7°F (-0.7°C).Humidity
In December, the average relative humidity is 76%.Rainfall
In December, in Hillsgrove, the rain falls for 10.2 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 135.6 rainfall days, and 20.31" (516mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 4 days. Throughout December, 1.06" (27mm) of snow is accumulated. Throughout the year, there are 21.2 snowfall days, and 6.46" (164mm) 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 6:54 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:25 pm EST.
Sunshine
The average sunshine in December 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hillsgrove, RI
- Average high temperature in December: 40.8°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 (35.2°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Hillsgrove, RI
- 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
Hillsgrove, RI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Hillsgrove, RI
- 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
Hillsgrove, RI
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is April (2.17").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Hillsgrove, RI
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Hillsgrove, RI
- Average snowfall in December: 1.06"
The month with the highest snowfall is March (1.89").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Hillsgrove, RI
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (6 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
Hillsgrove, RI
- 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
Hillsgrove, RI
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in December
Hillsgrove, RI
- 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
Hillsgrove, RI
- 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 30).
Average visibility in December
Hillsgrove, RI
- 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).
