January weather forecast
Crystal Lake, CT

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Weather in January

January, the same as December, is an icy winter month in Crystal Lake, Connecticut, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 32.4°F (0.2°C).

Temperature

The coldest month is January, with an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 19.8°F (-6.8°C).

Humidity

The average relative humidity in January is 78%.

Rainfall

In Crystal Lake, in January, it is raining for 5.5 days, with typically 0.51" (13mm) of accumulated precipitation. In Crystal Lake, during the entire year, the rain falls for 105.6 days and collects up to 9.84" (250mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In January, it is snowing for 5.3 days. Throughout January, 0.71" (18mm) of snow is accumulated. In Crystal Lake, during the entire year, snow falls for 23.1 days and aggregates up to 4.69" (119mm) of snow.

Daylight

The average length of the day in January is 9h and 32min.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:03 am and sunset at 5:02 pm EST.

Sunshine

In Crystal Lake, the average sunshine in January 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January brings the lowest temperatures, with an average high of 32.4°F (0.2°C) and an average low of 19.8°F (-6.8°C).

How cold is it in January?

The average high-temperature, in January, in Crystal Lake, is 32.4°F (0.2°C), while the average low-temperature is 19.8°F (-6.8°C).

What is the average humidity in January?

In Crystal Lake, the average relative humidity in January is 78%.

How much does it rain in January?

In January, the rain falls for 5.5 days. Throughout January, 0.51" (13mm) of precipitation is accumulated.

How many days does it snow in January?

In Crystal Lake, in January, during 5.3 snowfall days, 0.71" (18mm) of snow is typically accumulated.

How many hours of daylight does Crystal Lake have in January?

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

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:17 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:02 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 5h.

What are the months with 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.

How high is the UV index in January in Crystal Lake?

In Crystal Lake, Connecticut, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat 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
Crystal Lake, CT

Average temperature in January - Crystal Lake, CT
  • Average high temperature in January: 32.4°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°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
Crystal Lake, CT

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

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Crystal Lake, CT

Average wind speed in January - Crystal Lake, CT
  • Average wind speed in January: 8.2mph

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in January
Crystal Lake, CT

Average humidity in January - Crystal Lake, CT
  • Average humidity in January: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Crystal Lake, CT

Average rainfall in January - Crystal Lake, CT
  • Average rainfall in January: 0.51"

The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in January
Crystal Lake, CT

Average rainfall days in January - Crystal Lake, CT
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).

Average snowfall in January
Crystal Lake, CT

Average snowfall in January - Crystal Lake, CT
  • Average snowfall in January: 0.71"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Crystal Lake, CT

Average snowfall days in January - Crystal Lake, CT
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Crystal Lake, CT

Average daylight in January / Average sunshine in January - Crystal Lake, 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
Crystal Lake, CT

Average sunshine days in January - Crystal Lake, CT
  • Average sunshine days in January: 21.9 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).

Average UV index in January
Crystal Lake, CT

Average UV index in January - Crystal Lake, 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
Crystal Lake, CT

Average cloud cover in January - Crystal Lake, CT
  • Average cloud cover in January: 46

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Crystal Lake, CT

Average visibility in January - Crystal Lake, 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).

Crystal Lake, Connecticut, USA

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