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
During the coldest month, January, temperatures average a high of 36.1°F (2.3°C) and a low of 23.4°F (-4.8°C).Humidity
In Bethalto, the average relative humidity in January is 77%.Rainfall
In Bethalto, in January, during 5.6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Bethalto, during the entire year, the rain falls for 138 days and collects up to 23.9" (607mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Bethalto, during January, snow falls for 6 days and regularly aggregates up to 1.18" (30mm) of snow. In Bethalto, Illinois, during the entire year, snow falls for 18.6 days and aggregates up to 4.53" (115mm) of snow.Daylight
The average length of the day in January is 9h and 49min.On the first day of January in Bethalto, sunrise is at 7:18 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:19 pm CST.
Sunshine
The months with the least sunshine are January and February, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index in Bethalto 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 vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 2 in January translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Bethalto?
How cold is January in Bethalto?
What is the average humidity in January in Bethalto?
How many days does it rain in January in Bethalto?
How many days does it snow in January in Bethalto?
What is the average length of the day in January in Bethalto?
When is the sunrise / sunset in January in Bethalto?
What is the month with the least sunshine in Bethalto?
How long on average sun shines in January in Bethalto?
When is the lowest UV index in Bethalto?
What is the UV index reading in January in Bethalto?
Average temperature in January
Bethalto, IL
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Bethalto, 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 (29.92"Hg).
Average wind speed in January
Bethalto, IL
- Average wind speed in January: 9.6mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in January
Bethalto, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Bethalto, IL
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in January
Bethalto, IL
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in January
Bethalto, IL
- Average snowfall in January: 1.18"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Bethalto, IL
- Average snowfall days in January: 6 days
The month with the highest number of snowfall days is January (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
Bethalto, 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 30min).
- Average sunshine in January: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in January
Bethalto, IL
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Bethalto, IL
- Average UV index in January: 2
The months with the highest UV index are May, 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
Bethalto, IL
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in January
Bethalto, 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).
Bethalto, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location