January weather forecast and climate
LaSalle, IL

Weather in January

January, the same as December, in LaSalle, Illinois, is a freezing cold winter month, with average temperature fluctuating between 14°F (-10°C) and 30°F (-1.1°C).

Temperature

With an average high-temperature of 30°F (-1.1°C) and an average low-temperature of 14°F (-10°C), January is the coldest month.

Daylight

In LaSalle, the average length of the day in January is 9.6h.
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FAQ

What is the coldest month in LaSalle?

With an average high-temperature of 30°F (-1.1°C) and an average low-temperature of 14°F (-10°C), January is the coldest month in LaSalle.

How many hours of daylight does LaSalle have in January?

The average length of the day in January in LaSalle, Illinois, is 9.6h.

Average temperature in January
LaSalle, IL

Average temperature in January - LaSalle, IL
  • Average high temperature in January: 30°F

The warmest month (with the highest average high temperature) is July (85°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in January: 14°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (14°F).

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Average daylight in January
LaSalle, IL

Average daylight in January - LaSalle, IL
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

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