January weather forecast
East Granby, CT

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Weather in January

January, like December, is another subzero cold winter month in East Granby, Connecticut, with an average temperature varying between 19.8°F (-6.8°C) and 31.8°F (-0.1°C).

Temperature

In East Granby, January is the coldest month, with temperatures averaging a high of 31.8°F (-0.1°C) and a low of 19.8°F (-6.8°C).

Humidity

In January, the average relative humidity is 78%.

Rainfall

In East Granby, in January, it is raining for 6.3 days, with typically 0.67" (17mm) of accumulated precipitation. In East Granby, during the entire year, the rain falls for 113.2 days and collects up to 10.91" (277mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In East Granby, in January, during 6 snowfall days, 1.1" (28mm) of snow is typically accumulated. Throughout the year, there are 23.9 snowfall days, and 5.63" (143mm) of snow is accumulated.

Daylight

The average length of the day in January in East Granby is 9h and 32min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:03 pm EST.

Sunshine

In January, the average sunshine 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 low health risk from unsafe exposure to UV radiation for the average person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In East Granby, the average lowest temperatures are observed in January, with a high of 31.8°F (-0.1°C) and a low of 19.8°F (-6.8°C).

How cold is it in January?

In East Granby, 31.8°F (-0.1°C) is the average high-temperature and 19.8°F (-6.8°C) is the average low-temperature during January.

What is the average humidity in January?

In East Granby, the average relative humidity in January is 78%.

How many days does it rain in January?

In East Granby, during January, the rain falls for 6.3 days and regularly aggregates up to 0.67" (17mm) of precipitation.

How much does it snow in January?

In East Granby, in January, during 6 snowfall days, 1.1" (28mm) of snow is typically accumulated.

How many hours of daylight does East Granby have in January?

In East Granby, the average day length in January is 9h and 32min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:03 pm EST.

How many hours of sunshine does East Granby have in January?

The average sunshine duration in January is 5h.

When is 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.

How high is the UV index in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents 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
East Granby, CT

Average temperature in January - East Granby, CT
  • Average high temperature in January: 31.8°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in January
East Granby, CT

Average pressure in January - East Granby, 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).

Average wind speed in January
East Granby, CT

Average wind speed in January - East Granby, 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 month (with the lowest average wind speed) is August (5.1mph).

Average humidity in January
East Granby, CT

Average humidity in January - East Granby, CT
  • Average humidity in January: 78%

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

Average rainfall in January
East Granby, CT

Average rainfall in January - East Granby, CT
  • Average rainfall in January: 0.67"

The wettest months (with the highest rainfall) are July and October (1.14").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in January
East Granby, CT

Average rainfall days in January - East Granby, CT
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in January
East Granby, CT

Average snowfall in January - East Granby, CT
  • Average snowfall in January: 1.1"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
East Granby, CT

Average snowfall days in January - East Granby, CT
  • Average snowfall days in January: 6 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
East Granby, CT

Average daylight in January / Average sunshine in January - East Granby, CT
  • Average daylight in January: 9h and 3min

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 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
East Granby, CT

Average sunshine days in January - East Granby, CT
  • Average sunshine days in January: 20.8 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (16.1 days).

Average UV index in January
East Granby, CT

Average UV index in January - East Granby, CT
  • 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
East Granby, CT

Average cloud cover in January - East Granby, CT
  • Average cloud cover in January: 46

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

Average visibility in January
East Granby, CT

Average visibility in January - East Granby, CT
  • Average visibility in January: 6mi

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

East Granby, Connecticut, USA

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