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, marked by an average high-temperature of 34°F (1.1°C) and a low-temperature of 21.7°F (-5.7°C), is the coldest month.Humidity
The average relative humidity in January is 78%.Rainfall
In January, the rain falls for 6.7 days. Throughout January, 1.38" (35mm) of precipitation is accumulated. In Thayer, during the entire year, the rain falls for 143.6 days and collects up to 23.74" (603mm) of precipitation.Snowfall
Months with snowfall in Thayer are January through April, November and December. In Thayer, during January, snow falls for 8 days and regularly aggregates up to 1.54" (39mm) of snow. In Thayer, during the entire year, snow falls for 26.5 days and aggregates up to 6.5" (165mm) of snow.Daylight
The average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:17 pm CST.
Sunshine
The month with the least sunshine in Thayer is January, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Thayer?
How cold is it in Thayer in January?
What is the average humidity in January in Thayer?
How much does it rain in Thayer in January?
How much does it snow in Thayer in January?
How many hours of daylight does Thayer have in January?
When is the sunrise / sunset in January in Thayer?
What is the month with the least sunshine in Thayer?
How long on average sun shines in January in Thayer?
What are the months with the lowest UV index in Thayer?
What is the UV index reading in January in Thayer?
Average temperature in January
Thayer, IL
- Average high temperature in January: 34°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in January: 21.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in January
Thayer, IL
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Thayer, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in January
Thayer, IL
- Average humidity in January: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Thayer, IL
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are February and December (1.26").
Average rainfall days in January
Thayer, IL
- Average rainfall days in January: 6.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in January
Thayer, IL
- Average snowfall in January: 1.54"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Thayer, IL
- Average snowfall days in January: 8 days
The month with the highest number of snowfall days is January (8 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
Thayer, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Thayer, IL
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in January
Thayer, 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
Thayer, IL
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in January
Thayer, 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).
Thayer, Illinois, USA
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