December weather forecast
Shady Harbor, RI

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Weather in December

The first month of the winter, December, is also a wintry month in Shady Harbor, Rhode Island, with an average temperature ranging between max 42.6°F (5.9°C) and min 33.6°F (0.9°C).

Temperature

With the onset of December, Shady Harbor experiences a modest temperature adjustment, with the average high-temperature gently receding from a fresh 51.3°F (10.7°C) in November to an icy 42.6°F (5.9°C). A modest decline from daytime high temperatures is noticed in December, marking the average low at a still cold 33.6°F (0.9°C).

Humidity

The average relative humidity in December in Shady Harbor is 75%.

Rainfall

December is the month with the most rainfall in Shady Harbor. Rain falls for 11.5 days and accumulates 3.39" (86mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Shady Harbor, in December, during 3.5 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Shady Harbor, during the entire year, snow falls for 18.6 days and aggregates up to 6.26" (159mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Shady Harbor.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:27 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 4.8h of sunshine.

UV index

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Shady Harbor?

The high-temperature, in December, in Shady Harbor, records 42.6°F (5.9°C), while the low-temperature is 33.6°F (0.9°C).

What is the average humidity in December in Shady Harbor?

The average relative humidity in December in Shady Harbor, Rhode Island, is 75%.

What is the wettest month in Shady Harbor?

December is the month with the most rainfall in Shady Harbor. Rain falls for 11.5 days and accumulates 3.39" (86mm) of precipitation.

How much does it rain in Shady Harbor in December?

In Shady Harbor, Rhode Island, during December, the rain falls for 11.5 days and regularly aggregates up to 3.39" (86mm) of precipitation.

How much does it snow in Shady Harbor in December?

In Shady Harbor, during December, snow falls for 3.5 days and regularly aggregates up to 1.06" (27mm) of snow.

What is the month with the shortest days in Shady Harbor?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Shady Harbor have in December?

The average day length in December is 9h and 15min.

When is the sunrise / sunset in December in Shady Harbor?

On the first day of December in Shady Harbor, Rhode Island, 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.

What is the month with the least sunshine in Shady Harbor?

The month with the least sunshine is December, with an average of 4.8h of sunshine.

How many hours of sunshine does Shady Harbor have in December?

In Shady Harbor, Rhode Island, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Shady Harbor?

The months with the lowest UV index in Shady Harbor are January through March and December, with an average maximum UV index of 2.

How high is the UV index in December in Shady Harbor?

In Shady Harbor, Rhode Island, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Shady Harbor, RI

Average temperature in December - Shady 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
Shady Harbor, RI

Average pressure in December - Shady 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
Shady Harbor, RI

Average wind speed in December - Shady 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
Shady Harbor, RI

Average humidity in December - Shady 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
Shady Harbor, RI

Average rainfall in December - Shady 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
Shady Harbor, RI

Average rainfall days in December - Shady 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
Shady Harbor, RI

Average snowfall in December - Shady 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
Shady Harbor, RI

Average snowfall days in December - Shady 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
Shady Harbor, RI

Average daylight in December / Average sunshine in December - Shady 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
Shady Harbor, RI

Average sunshine days in December - Shady 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
Shady Harbor, RI

Average UV index in December - Shady 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
Shady Harbor, RI

Average cloud cover in December - Shady 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
Shady Harbor, RI

Average visibility in December - Shady 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).

Shady Harbor, Rhode Island, USA

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