January weather forecast
Bolton, MA

Weather in January

January, the same as December, in Bolton, Massachusetts, is another subzero cold winter month, with average temperature fluctuating between 31.5°F (-0.3°C) and 19.8°F (-6.8°C).

Temperature

With an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month.

Humidity

In January, the average relative humidity is 79%.

Rainfall

In January, the rain falls for 8.2 days. Throughout January, 2.24" (57mm) of precipitation is accumulated. In Bolton, during the entire year, the rain falls for 150.4 days and collects up to 28.86" (733mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Bolton, during January, snow falls for 8.7 days and regularly aggregates up to 4.06" (103mm) of snow. Throughout the year, there are 36.5 snowfall days, and 23.82" (605mm) of snow is accumulated.

Daylight

The average length of the day in January is 9.5h.

Sunshine

The average sunshine in Bolton is 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 reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Bolton?

With an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month.

What is the average humidity in January in Bolton?

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

How much does it rain in Bolton in January?

In Bolton, Massachusetts, during January, the rain falls for 8.2 days and regularly aggregates up to 2.24" (57mm) of precipitation.

How much does it snow in Bolton in January?

In Bolton, Massachusetts, in January, snow falls for 8.7 days, with typically accumulated 4.06" (103mm) of snow.

How many hours of daylight does Bolton have in January?

In January, the average length of the day in Bolton, Massachusetts, is 9.5h.

How long on average sun shines in January in Bolton?

In Bolton, Massachusetts, the average sunshine in January is 5h.

What are the months with the lowest UV index in Bolton?

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

What is the UV index reading in January in Bolton?

The average daily maximum UV index in January in Bolton, Massachusetts, is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.

Average temperature in January
Bolton, MA

Average temperature in January - Bolton, MA
  • Average high temperature in January: 31.5°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in January: 19.8°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 (19.8°F).

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Average pressure in January
Bolton, MA

Average pressure in January - Bolton, MA
  • Average pressure in January: 30.01"

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

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Average wind speed in January
Bolton, MA

Average wind speed in January - Bolton, MA
  • Average wind speed in January: 8.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in January
Bolton, MA

Average humidity in January - Bolton, 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%).

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Average rainfall in January
Bolton, MA

Average rainfall in January - Bolton, MA
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in January
Bolton, MA

Average rainfall days in January - Bolton, MA
  • Average rainfall days in January: 8.2 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in January
Bolton, MA

Average snowfall in January - Bolton, MA
  • Average snowfall in January: 4.06"

The month with the highest snowfall is February (6.1").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Bolton, MA

Average snowfall days in January - Bolton, MA
  • Average snowfall days in January: 8.7 days

The month with the highest number of snowfall days is February (9.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Bolton, MA
  • Average daylight in January: 9.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 5h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in January
Bolton, MA

Average sunshine days in January - Bolton, MA
  • Average sunshine days in January: 16.5 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in January
Bolton, MA

Average UV index in January - Bolton, MA
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Bolton, MA

Average cloud cover in January - Bolton, 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).

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Average visibility in January
Bolton, MA

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

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

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