January weather forecastSaint Peter, IL
January
Weather in January
January, like December, in Saint Peter, Illinois, is another cold winter month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 36°F (2.2°C).Temperature
With an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.4°F (-4.8°C), January is the coldest month.Humidity
In Saint Peter, the average relative humidity in January is 77%.Rainfall
In Saint Peter, during January, the rain falls for 7.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 139.3 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
Months with snowfall in Saint Peter are January through April, November and December. In Saint Peter, during January, snow falls for 5.7 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 18.9 snowfall days, and 5.24" (133mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:02 am and sunset at 5:15 pm CST.
Sunshine
With an average of 4.3h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Saint Peter, Illinois, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in January translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. 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
Saint Peter, IL
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Saint Peter, IL
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Saint Peter, IL
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Saint Peter, IL
- Average humidity in January: 77%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Saint Peter, IL
- Average rainfall in January: 1.61"
The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in January
Saint Peter, IL
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Saint Peter, IL
- Average snowfall in January: 1.34"
The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Saint Peter, IL
- Average snowfall days in January: 5.7 days
The month with the highest number of snowfall days is January (5.7 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
Saint Peter, IL
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Saint Peter, IL
- Average sunshine days in January: 19.5 days
The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in January
Saint Peter, IL
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Saint Peter, IL
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in January
Saint Peter, 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).
