January weather forecastMontgomery, IL
January
Weather in January
January, like December, is a freezing cold winter month in Montgomery, Illinois, with an average temperature fluctuating between 28.4°F (-2°C) and 16.7°F (-8.5°C).Temperature
January, recording an average high temperature of 28.4°F (-2°C) and a low temperature of 16.7°F (-8.5°C), is Montgomery's coldest month.Humidity
The months with the highest humidity are January, February, July and August, with an average relative humidity of 83%.Rainfall
In Montgomery, in January, during 5 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Montgomery, during the entire year, the rain falls for 133.1 days and collects up to 16.93" (430mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.7 days and accumulates 1.73" (44mm) of snow.Daylight
In Montgomery, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:33 pm. On the last day of January, in Montgomery, sunrise is at 7:06 am and sunset at 5:06 pm CST.
Sunshine
The month with the least sunshine in Montgomery is January, with an average of 3.8h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 during January translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Montgomery, IL
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 16.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in January
Montgomery, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Montgomery, IL
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Montgomery, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Montgomery, IL
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").
Average rainfall days in January
Montgomery, IL
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Montgomery, IL
- Average snowfall in January: 1.73"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Montgomery, IL
- Average snowfall days in January: 10.7 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Montgomery, IL
- Average daylight in January: 9h and 36min
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: 3h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Montgomery, IL
- Average sunshine days in January: 17 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in January
Montgomery, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Montgomery, IL
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Montgomery, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





