January weather forecast
Georgetown, MA

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Weather in January

January, the same as December, is a wintry winter month in Georgetown, Massachusetts, with an average temperature varying between 20.5°F (-6.4°C) and 32.5°F (0.3°C).

Temperature

With an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.5°F (-6.4°C), January is the coldest month.

Humidity

In January, the average relative humidity is 78%.

Rainfall

In Georgetown, during January, the rain falls for 3.6 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Georgetown, during the entire year, the rain falls for 78.3 days and collects up to 5.43" (138mm) of precipitation.

Snowfall

Months with snowfall in Georgetown are January through May, November and December. In January, it is snowing for 3.7 days. Throughout January, 0.43" (11mm) of snow is accumulated. Throughout the year, there are 17.2 snowfall days, and 2.6" (66mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 28min.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:20 pm. On the last day of January, sunrise is at 6:59 am and sunset at 4:55 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 2 in January transforms into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, with average temperatures reaching a high of 32.5°F (0.3°C) and a low of 20.5°F (-6.4°C), is the coldest month.

How cold is January?

In January, the average high-temperature and low-temperature are 32.5°F (0.3°C) and 20.5°F (-6.4°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 78%.

How many days does it rain in January?

In Georgetown, in January, during 3.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

How many days does it snow in January in Georgetown?

In January, it is snowing for 3.7 days. Throughout January, 0.43" (11mm) of snow is accumulated.

How many hours of daylight does Georgetown have in January?

The average day length in January is 9h and 28min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:14 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:55 pm EST.

How many hours of sunshine does Georgetown have in January?

In Georgetown, the average sunshine duration in January is 5.1h.

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.

What is the UV index reading in January?

In Georgetown, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Georgetown, MA

Average temperature in January - Georgetown, MA
  • Average high temperature in January: 32.5°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 (32.5°F).

  • Average low temperature in January: 20.5°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in January
Georgetown, MA

Average pressure in January - Georgetown, MA
  • Average pressure in January: 30"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Georgetown, MA

Average wind speed in January - Georgetown, MA
  • Average wind speed in January: 9.5mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in January
Georgetown, MA

Average humidity in January - Georgetown, MA
  • Average humidity in January: 78%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Georgetown, MA

Average rainfall in January - Georgetown, MA
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in January
Georgetown, MA

Average rainfall days in January - Georgetown, MA
  • Average rainfall days in January: 3.6 days

The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (3.6 days).

Average snowfall in January
Georgetown, MA

Average snowfall in January - Georgetown, MA
  • Average snowfall in January: 0.43"

The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Georgetown, MA

Average snowfall days in January - Georgetown, MA
  • Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Georgetown, MA

Average daylight in January / Average sunshine in January - Georgetown, MA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in January
Georgetown, MA

Average sunshine days in January - Georgetown, MA
  • Average sunshine days in January: 24.5 days

The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (18.4 days).

Average UV index in January
Georgetown, MA

Average UV index in January - Georgetown, MA
  • Average UV index in January: 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 January
Georgetown, MA

Average cloud cover in January - Georgetown, MA
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in January
Georgetown, MA

Average visibility in January - Georgetown, 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).

Georgetown, Massachusetts, USA

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