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 is Bristol's coldest month, registering average high temperatures of 28.4°F (-2°C) and lows of 16.7°F (-8.5°C).Humidity
January, February, July and August, with an average relative humidity of 83%, are the most humid months.Rainfall
In Bristol, in January, during 5 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Bristol, there are 133.1 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Bristol, Illinois. January is the month with the most snowfall. Snow falls for 10.7 days and accumulates 1.73" (44mm) of snow.Daylight
The average length of the day in January is 9h and 34min.On the first day of January, sunrise is at 7:20 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:07 pm CST.
Sunshine
With an average of 3.8h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In January, a regular UV index of 1 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What are the most humid months in Bristol?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January in Bristol?
What is the average length of the day in January?
What time are sunrise and sunset in January in Bristol?
What is the month with the least sunshine?
How many hours of sunshine does Bristol have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Bristol, IL
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.4°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
Bristol, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Bristol, IL
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Bristol, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Bristol, IL
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").
Average rainfall days in January
Bristol, IL
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Bristol, IL
- Average snowfall in January: 1.73"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Bristol, IL
- Average snowfall days in January: 10.7 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Bristol, IL
- Average daylight in January: 9h and 4min
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 5min
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 48min).
Average sunshine days in January
Bristol, IL
- Average sunshine days in January: 17 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in January
Bristol, 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
Bristol, IL
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Bristol, 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).
Bristol, Illinois, USA
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