January weather forecast
Shirley, MA

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Weather in January

January, like December, is another subzero cold winter month in Shirley, Massachusetts, with temperature in the range of an average low of 19.4°F (-7°C) and an average high of 31.3°F (-0.4°C).

Temperature

In Shirley, January records the lowest average temperatures, peaking at 31.3°F (-0.4°C) and reaching a low of 19.4°F (-7°C).

Humidity

The average relative humidity in January in Shirley, Massachusetts, is 79%.

Rainfall

In Shirley, in January, it is raining for 7.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 142.2 rainfall days, and 26.97" (685mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Shirley. In Shirley, in January, snow falls for 8.1 days, with typically accumulated 4.25" (108mm) of snow. In Shirley, during the entire year, snow falls for 32.6 days and aggregates up to 22.99" (584mm) of snow.

Daylight

In January, the average length of the day is 9h and 29min.
On the first day of January, sunrise is at 7:16 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:58 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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during January leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Shirley?

In Shirley, the lowest temperatures are generally noted in January, averaging a high of 31.3°F (-0.4°C) and a low of 19.4°F (-7°C).

How cold is January?

In Shirley, 31.3°F (-0.4°C) is the average high-temperature and 19.4°F (-7°C) is the average low-temperature during January.

What is the average humidity in January?

In Shirley, the average relative humidity in January is 79%.

How much does it rain in January?

In Shirley, in January, during 7.8 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Shirley, in January, during 8.1 snowfall days, 4.25" (108mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 29min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:16 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:58 pm EST.

How many hours of sunshine does Shirley have in January?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

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

Average temperature in January - Shirley, MA
  • Average high temperature in January: 31.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in January: 19.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in January
Shirley, MA

Average pressure in January - Shirley, MA
  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Shirley, MA

Average wind speed in January - Shirley, MA
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Shirley, MA

Average humidity in January - Shirley, MA
  • Average humidity in January: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Shirley, MA

Average rainfall in January - Shirley, MA
  • Average rainfall in January: 2.13"

The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in January
Shirley, MA

Average rainfall days in January - Shirley, MA
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in January
Shirley, MA

Average snowfall in January - Shirley, MA
  • Average snowfall in January: 4.25"

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Shirley, MA

Average snowfall days in January - Shirley, MA
  • Average snowfall days in January: 8.1 days

The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Shirley, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
Shirley, MA

Average sunshine days in January - Shirley, MA
  • Average sunshine days in January: 17.9 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in January
Shirley, MA

Average UV index in January - Shirley, 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
Shirley, MA

Average cloud cover in January - Shirley, MA
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Shirley, MA

Average visibility in January - Shirley, MA
  • Average visibility in January: 5mi

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

Shirley, Massachusetts, USA

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