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's arrival signals a moderate reduction in the average high-temperature, easing from a cool 51.3°F (10.7°C) in November to a wintry 42.6°F (5.9°C). Shelter Harbor's nights throughout December are marked by an average low temperature of 33.6°F (0.9°C), a minor drop from the day's high.Humidity
The average relative humidity in December is 75%.Rainfall
December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.39" (86mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, in Shelter Harbor, Rhode Island, it is snowing for 3.5 days. Throughout December, 1.06" (27mm) of snow is accumulated. Throughout the year, in Shelter Harbor, there are 18.6 snowfall days, and 6.26" (159mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Shelter Harbor.On the first day of December in Shelter Harbor, sunrise is at 6:54 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:27 pm EST.
Sunshine
December has the least sunshine of the year in Shelter Harbor, Rhode Island, with an average of 4.8h of sunshine.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
Is December cold in Shelter Harbor?
What is the average humidity in December in Shelter Harbor?
What is the rainiest month in Shelter Harbor?
How many days does it rain in December in Shelter Harbor?
How much does it snow in Shelter Harbor in December?
What is the month with the shortest days in Shelter Harbor?
What is the average length of the day in December in Shelter Harbor?
What time are sunrise and sunset in December in Shelter Harbor?
What is the month with the least sunshine in Shelter Harbor?
How many hours of sunshine does Shelter Harbor have in December?
What are the months with the lowest UV index in Shelter Harbor?
How high is the UV index in December in Shelter Harbor?
Average temperature in December
Shelter Harbor, RI
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Shelter Harbor, RI
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Shelter Harbor, RI
- Average wind speed in December: 12mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in December
Shelter Harbor, RI
- Average humidity in December: 75%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in December
Shelter Harbor, RI
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Shelter Harbor, RI
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Shelter Harbor, RI
- Average snowfall in December: 1.06"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Shelter Harbor, RI
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Shelter Harbor, RI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
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 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Shelter Harbor, RI
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Shelter Harbor, 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 and December (UV index 2).
Average cloud cover in December
Shelter Harbor, RI
- Average cloud cover in December: 47
The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Shelter Harbor, 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).
Shelter Harbor, Rhode Island, USA
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