January weather forecast
Lake Catherine, IL

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Weather in January

January, the same as December, in Lake Catherine, Illinois, is a freezing cold winter month, with an average temperature varying between 14.9°F (-9.5°C) and 26.2°F (-3.2°C).

Temperature

Temperature records mark January as the coldest month, with highs averaging 26.2°F (-3.2°C) and lows at 14.9°F (-9.5°C).

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

In Lake Catherine, during January, the rain falls for 4.1 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 139.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.33" (110mm) of snow.

Daylight

In January, the average length of the day is 9h and 29min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:29 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:04 pm CST.

Sunshine

January and February, with an average of 3.6h of sunshine, are months with the least sunshine in Lake Catherine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What are the coldest months?

January, with its high-temperature average of 26.2°F (-3.2°C) and a low-temperature average of 14.9°F (-9.5°C), is the coldest month.

How cold is it in January?

In Lake Catherine, 26.2°F (-3.2°C) is the average high-temperature and 14.9°F (-9.5°C) is the average low-temperature during January.

What is the most humid month?

The most humid month is January, with an average relative humidity of 85%.

What is the average humidity in January?

The average relative humidity in January is 85%.

How much does it rain in January?

In Lake Catherine, in January, it is raining for 4.1 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.33" (110mm) of snow.

How much does it snow in January?

In Lake Catherine, in January, snow falls for 10.1 days, with typically accumulated 4.33" (110mm) of snow.

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

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

What time are sunrise and sunset in January in Lake Catherine?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:29 pm. On the last day of the month, in Lake Catherine, sunrise is at 7:07 am and sunset at 5:04 pm CST.

What are the months with the least sunshine?

The months with the least sunshine in Lake Catherine are January and February, with an average of 3.6h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 3.6h.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in January in Lake Catherine?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health risk 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
Lake Catherine, IL

Average temperature in January - Lake Catherine, IL
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 14.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

Average pressure in January
Lake Catherine, IL

Average pressure in January - Lake Catherine, IL
  • Average pressure in January: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Lake Catherine, IL

Average wind speed in January - Lake Catherine, IL
  • Average wind speed in January: 10.3mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in January
Lake Catherine, IL

Average humidity in January - Lake Catherine, IL
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in January
Lake Catherine, IL

Average rainfall in January - Lake Catherine, IL
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

Average rainfall days in January
Lake Catherine, IL

Average rainfall days in January - Lake Catherine, IL
  • Average rainfall days in January: 4.1 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in January
Lake Catherine, IL

Average snowfall in January - Lake Catherine, IL
  • Average snowfall in January: 4.33"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Lake Catherine, IL

Average snowfall days in January - Lake Catherine, IL
  • Average snowfall days in January: 10.1 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Lake Catherine, IL

Average daylight in January / Average sunshine in January - Lake Catherine, IL
  • 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 6min).

  • Average sunshine in January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

Average sunshine days in January
Lake Catherine, IL

Average sunshine days in January - Lake Catherine, IL
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in January
Lake Catherine, IL

Average UV index in January - Lake Catherine, IL
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Lake Catherine, IL

Average cloud cover in January - Lake Catherine, IL
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).

Average visibility in January
Lake Catherine, IL

Average visibility in January - Lake Catherine, IL
  • Average visibility in January: 6mi

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

Lake Catherine, Illinois, USA

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