January weather forecast
South Orleans, MA

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Weather in January

January, the same as December, is a wintry winter month in South Orleans, Massachusetts, with an average temperature varying between 31.5°F (-0.3°C) and 38.8°F (3.8°C).

Temperature

January is the month when South Orleans sees the lowest average temperatures, with a high of 38.8°F (3.8°C) and a low of 31.5°F (-0.3°C).

Humidity

The average relative humidity in January is 75%.

Rainfall

In South Orleans, Massachusetts, in January, during 5.3 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. Throughout the year, there are 78.2 rainfall days, and 5.75" (146mm) of precipitation is accumulated.

Snowfall

Months with snowfall in South Orleans, Massachusetts, are January through March, November and December. In South Orleans, during January, snow falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of snow. In South Orleans, during the entire year, snow falls for 13.2 days and aggregates up to 0.94" (24mm) of snow.

Daylight

The average length of the day in January is 9h and 34min.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of January, sunrise is at 6:53 am and sunset at 4:53 pm EST.

Sunshine

In South Orleans, Massachusetts, the average sunshine in January is 4.5h.

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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What are the coldest months?

January brings the lowest temperatures, with an average high of 38.8°F (3.8°C) and an average low of 31.5°F (-0.3°C).

How cold is it in January?

In January, the average high-temperature and low-temperature are 38.8°F (3.8°C) and 31.5°F (-0.3°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 75%.

How much does it rain in January?

In January, the rain falls for 5.3 days. Throughout January, 0.47" (12mm) of precipitation is accumulated.

How many days does it snow in January?

In South Orleans, during January, snow falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of snow.

How many hours of daylight does South Orleans have in January?

The average day length in January is 9h and 34min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:53 pm EST.

How many hours of sunshine does South Orleans have in January?

The average sunshine duration in January is 4.5h.

When is the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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 January
South Orleans, MA

Average temperature in January - South Orleans, MA
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 31.5°F

The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in January
South Orleans, MA

Average pressure in January - South Orleans, MA
  • Average pressure in January: 29.99"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
South Orleans, MA

Average wind speed in January - South Orleans, MA
  • Average wind speed in January: 18.3mph

The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).

Average humidity in January
South Orleans, MA

Average humidity in January - South Orleans, MA
  • Average humidity in January: 75%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

Average rainfall in January
South Orleans, MA

Average rainfall in January - South Orleans, MA
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").

Average rainfall days in January
South Orleans, MA

Average rainfall days in January - South Orleans, MA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in January
South Orleans, MA

Average snowfall in January - South Orleans, MA
  • Average snowfall in January: 0.24"

The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
South Orleans, MA

Average snowfall days in January - South Orleans, MA
  • Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
South Orleans, MA

Average daylight in January / Average sunshine in January - South Orleans, MA
  • Average daylight in January: 9h and 4min

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 January: 4h and 3min

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

Average sunshine days in January
South Orleans, MA

Average sunshine days in January - South Orleans, MA
  • Average sunshine days in January: 22.1 days

The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).

Average UV index in January
South Orleans, MA

Average UV index in January - South Orleans, MA
  • Average UV index in January: 2

The months with the highest UV index are 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 January
South Orleans, MA

Average cloud cover in January - South Orleans, MA
  • Average cloud cover in January: 52

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in January
South Orleans, MA

Average visibility in January - South Orleans, MA
  • Average visibility in January: 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).

South Orleans, Massachusetts, USA

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