January weather forecast
Glastonbury, CT

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Weather in January

Unpredictable could be the watchword in January for Glastonbury’s weather. Contrasted with February, the conditions are slightly milder with the lowest temperatures reported between 21.2°F (-6°C) and 33.4°F (0.8°C). This month holds the potential for both sunshine and snowfall. The winter chill is often offset by patches of sunshine sneaking through the cloud cover, creating visually dramatic landscapes. Despite the lower temperatures, daily life continues relatively unhindered due to good visibility conditions.

Temperature

January tends to be the coldest month in Glastonbury, with temperatures averaging a daily high of 33.4°F (0.8°C) and a low of 21.2°F (-6°C).

Humidity

In January, the average relative humidity in Glastonbury is 76%.

Rainfall

In Glastonbury, Connecticut, in January, it is raining for 9.2 days, with typically 2.2" (56mm) of accumulated precipitation. In Glastonbury, during the entire year, the rain falls for 164.5 days and collects up to 32.09" (815mm) of precipitation.

Snowfall

Months with snowfall in Glastonbury, Connecticut, are January through May, November and December. In Glastonbury, during January, snow falls for 7.1 days and regularly aggregates up to 2.87" (73mm) of snow. Throughout the year, in Glastonbury, Connecticut, there are 29.1 snowfall days, and 15.63" (397mm) of snow is accumulated.

Daylight

In Glastonbury, Connecticut, the average length of the day in January is 9h and 34min.
On the first day of January in Glastonbury, Connecticut, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:03 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

In January, the average daily maximum UV index in Glastonbury is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What month is the coldest in Glastonbury?

Glastonbury experiences its average lowest temperatures in January, reaching a peak of 33.4°F (0.8°C) and a minimum of 21.2°F (-6°C).

How cold is January in Glastonbury?

An average high-temperature, in January, in Glastonbury, is 33.4°F (0.8°C) and the average low-temperature is 21.2°F (-6°C).

What is the average humidity in January in Glastonbury?

In Glastonbury, the average relative humidity in January is 76%.

How many days does it rain in January in Glastonbury?

In Glastonbury, Connecticut, in January, it is raining for 9.2 days, with typically 2.2" (56mm) of accumulated precipitation.

How much does it snow in Glastonbury in January?

In Glastonbury, Connecticut, in January, during 7.1 snowfall days, 2.87" (73mm) of snow is typically accumulated.

How many hours of daylight does Glastonbury have in January?

In January, the average day length in Glastonbury is 9h and 34min.

When is the sunrise / sunset in January in Glastonbury?

On the first day of January, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:03 pm EST.

How many hours of sunshine does Glastonbury have in January?

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

What is the UV index reading in January in Glastonbury?

The average daily maximum UV index in January in Glastonbury, Connecticut, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Glastonbury, CT

Average temperature in January - Glastonbury, CT
  • Average high temperature in January: 33.4°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in January: 21.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in January
Glastonbury, CT

Average pressure in January - Glastonbury, CT
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Glastonbury, CT

Average wind speed in January - Glastonbury, CT
  • Average wind speed in January: 8.1mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in January
Glastonbury, CT

Average humidity in January - Glastonbury, CT
  • Average humidity in January: 76%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in January
Glastonbury, CT

Average rainfall in January - Glastonbury, CT
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in January
Glastonbury, CT

Average rainfall days in January - Glastonbury, CT
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in January
Glastonbury, CT

Average snowfall in January - Glastonbury, CT
  • Average snowfall in January: 2.87"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Glastonbury, CT

Average snowfall days in January - Glastonbury, CT
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is February (8.1 days).
The 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
Glastonbury, CT

Average daylight in January / Average sunshine in January - Glastonbury, CT
  • 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: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Glastonbury, CT

Average sunshine days in January - Glastonbury, CT
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in January
Glastonbury, CT

Average UV index in January - Glastonbury, CT
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Glastonbury, CT

Average cloud cover in January - Glastonbury, CT
  • Average cloud cover in January: 45

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

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Average visibility in January
Glastonbury, CT

Average visibility in January - Glastonbury, CT
  • Average visibility in January: 6mi

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

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Glastonbury, Connecticut, USA

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