Weather in January
In the midst of winter, LaSalle, Illinois is subject to brisk temperatures, often seeing a significant decrease compared to the latter part of the year. January is, in fact, the coldest month, with average temperatures ranging from 14°F (-10°C) to 30°F (-1.1°C). Despite the chill, the frosty atmosphere makes for superb winter landscapes, popular among outdoor photographers. The daylight hours of about 9.6 a month, while limited, can often produce crisp, clear skies. As we leave January and enter February, one typically finds more daylight, yet similar cold conditions persist.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:10 pm CST.
Temperature
In LaSalle, January is the month with the lowest recorded average temperatures, measuring a high of 30°F (-1.1°C) and a low of 14°F (-10°C).Daylight
In LaSalle, the average length of the day in January is 9h and 35min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:10 pm CST.
Updated: Jun 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is LaSalle's coldest month, registering average high temperatures of 30°F (-1.1°C) and lows of 14°F (-10°C).
How cold is January?
The high-temperature during January is 30°F (-1.1°C) and the low-temperature is 14°F (-10°C).
What is the average length of the day in January?
In January, the average day length is 9h and 35min.
When is the sunrise / sunset in January?
On the first day of January, sunrise is at 7:22 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:10 pm CST.
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).
Average daylight in January
LaSalle, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
LaSalle, Illinois, USA
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