December weather forecast
Clayville, RI

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Weather in December

December, the first month of the winter in Clayville, is also an icy month, with an average temperature varying between 40.1°F (4.5°C) and 29.3°F (-1.5°C).

Temperature

A shift in Clayville's weather is observed as November turns into December, with the average high temperature reducing from a chilly 49.1°F (9.5°C) to a wintry 40.1°F (4.5°C). An average nighttime temperature of 29.3°F (-1.5°C) is observed during December.

Humidity

In Clayville, Rhode Island, the average relative humidity in December is 77%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.2 days and accumulates 3.39" (86mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Clayville, in December, during 4.9 snowfall days, 1.97" (50mm) of snow is typically accumulated. Throughout the year, there are 29.7 snowfall days, and 12.99" (330mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:55 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:26 pm EST.

Sunshine

With an average of 4.7h of sunshine, December has the least sunshine of the year.

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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature in Clayville during December is 40.1°F (4.5°C) and the low-temperature is 29.3°F (-1.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in July is estimated at 86°F (30°C).

What is the average humidity in December?

In Clayville, the average relative humidity in December is 77%.

What is the wettest month?

The month with the most rainfall in Clayville is December, when the rain falls for 11.2 days and typically aggregates up to 3.39" (86mm) of precipitation.

How much does it rain in December?

In Clayville, in December, during 11.2 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

How much does it snow in December?

In Clayville, during December, snow falls for 4.9 days and regularly aggregates up to 1.97" (50mm) of snow.

What is the month with the shortest days in Clayville?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Clayville, the average day length in December is 9h and 12min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:26 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 4.7h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index in Clayville?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Clayville?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
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
Clayville, RI

Average temperature in December - Clayville, RI
  • Average high temperature in December: 40.1°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 (34°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in December
Clayville, RI

Average pressure in December - Clayville, 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
Clayville, RI

Average wind speed in December - Clayville, RI
  • Average wind speed in December: 9mph

The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in December
Clayville, RI

Average humidity in December - Clayville, RI
  • Average humidity in December: 77%

The months with the highest relative humidity are February, June and July (79%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Clayville, RI

Average rainfall in December - Clayville, 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 (1.77").

Average rainfall days in December
Clayville, RI

Average rainfall days in December - Clayville, RI
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Clayville, RI

Average snowfall in December - Clayville, RI
  • Average snowfall in December: 1.97"

The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Clayville, RI

Average snowfall days in December - Clayville, RI
  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is February (7.7 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
Clayville, RI

Average daylight in December / Average sunshine in December - Clayville, RI
  • Average daylight in December: 9h and 1min

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 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in December
Clayville, RI

Average sunshine days in December - Clayville, RI
  • Average sunshine days in December: 15.6 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December
Clayville, RI

Average UV index in December - Clayville, 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
Clayville, RI

Average cloud cover in December - Clayville, RI
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Clayville, RI

Average visibility in December - Clayville, RI
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, September, October, November and December (6mi).
The months with the lowest visibility are May, June, July and August (5mi).

Clayville, Rhode Island, USA

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