Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, known for its average high temperature of 26.1°F (-3.3°C) and an average low temperature of 13.5°F (-10.3°C), is the coldest month.Humidity
The most humid month is January, with an average relative humidity of 86%.Rainfall
In Savanna, Illinois, in January, it is raining for 5.2 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Savanna, there are 149.3 rainfall days, and 29.76" (756mm) of precipitation is accumulated.Snowfall
Months with snowfall in Savanna are January through May, October through December. January is the month with the most snowfall in Savanna. Snow falls for 11.7 days and accumulates 5.12" (130mm) of snow.Daylight
In January, the average length of the day is 9h and 32min.On the first day of January in Savanna, sunrise is at 7:28 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index in Savanna are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during January morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest month in Savanna?
How cold is it in Savanna in January?
What is the most humid month in Savanna?
What is the average humidity in January in Savanna?
How much does it rain in Savanna in January?
What is the snowiest month in Savanna?
How many days does it snow in January in Savanna?
What is the average length of the day in January in Savanna?
When is the sunrise / sunset in January in Savanna?
What is the month with the least sunshine in Savanna?
How long on average sun shines in January in Savanna?
What is the month with the lowest UV index in Savanna?
What is the UV index reading in January in Savanna?
Average temperature in January
Savanna, IL
- Average high temperature in January: 26.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in January: 13.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in January
Savanna, 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
Savanna, IL
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Savanna, IL
- Average humidity in January: 86%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Savanna, IL
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in January
Savanna, IL
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in January
Savanna, IL
- Average snowfall in January: 5.12"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Savanna, IL
- Average snowfall days in January: 11.7 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Savanna, IL
- Average daylight in January: 9h and 3min
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 4min
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 42min).
Average sunshine days in January
Savanna, IL
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in January
Savanna, IL
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Savanna, 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 32).
Average visibility in January
Savanna, IL
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Savanna, Illinois, USA
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