January weather forecastTroy Grove, IL
January
Weather in January
January, like December, is another subzero cold winter month in Troy Grove, Illinois, with an average temperature ranging between min 16.7°F (-8.5°C) and max 28.6°F (-1.9°C).Temperature
Troy Grove's temperature records reveal January as the coldest month, marked by average highs of 28.6°F (-1.9°C) and lows of 16.7°F (-8.5°C).Humidity
In Troy Grove, the average relative humidity in January is 83%.Rainfall
The months with the least rainfall in Troy Grove are January, February, November and December Rain falls for 3.6 days and accumulates 0.51" (13mm) of rain.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 8.6 days and accumulates 0.98" (25mm) of snow.Daylight
In Troy Grove, 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 4:36 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:10 pm CST.
Sunshine
With an average of 3.7h of sunshine, January has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Troy Grove. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in January interprets into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Troy Grove, IL
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°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
Troy Grove, IL
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Troy Grove, IL
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in January
Troy Grove, IL
- Average humidity in January: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Troy Grove, IL
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January, February, November and December (0.51").
Average rainfall days in January
Troy Grove, IL
- Average rainfall days in January: 3.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in January
Troy Grove, IL
- Average snowfall in January: 0.98"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Troy Grove, IL
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Troy Grove, IL
- Average daylight in January: 9h and 36min
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).
- Average sunshine in January: 3h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Troy Grove, IL
- Average sunshine days in January: 21.4 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in January
Troy Grove, 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
Troy Grove, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in January
Troy Grove, 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).





