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
With average temperatures fluctuating between a high of 28.6°F (-1.9°C) and a low of 16.7°F (-8.5°C), January stands out as the coldest month.Humidity
The average relative humidity in January in Arlington is 83%.Rainfall
January, February, November and December are months with the least rain when the rain falls for 3.6 days and typically aggregates up to 0.51" (13mm) of rain.Snowfall
January through April, October through December are months with snowfall in Arlington, Illinois. The month with the most snowfall in Arlington is January, when snow falls for 8.6 days and typically aggregates up to 0.98" (25mm) of snow.Daylight
In Arlington, the average length of the day in January is 9h and 35min.On the first day of January in Arlington, sunrise is at 7:23 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:11 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Arlington. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What time of the year is the coldest in Arlington?
How cold is January in Arlington?
What is the average humidity in January in Arlington?
What is the driest month in Arlington?
How much does it rain in Arlington in January?
What is the snowiest month in Arlington?
How many days does it snow in January in Arlington?
What is the average length of the day in January in Arlington?
What time are sunrise and sunset in January in Arlington?
What is the month with the least sunshine in Arlington?
How long on average sun shines in January in Arlington?
What is the month with the lowest UV index in Arlington?
What is the UV index reading in January in Arlington?
Average temperature in January
Arlington, IL
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°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
Arlington, 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
Arlington, IL
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in January
Arlington, IL
- Average humidity in January: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in January
Arlington, IL
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January, February, November and December (0.51").
Average rainfall days in January
Arlington, IL
- Average rainfall days in January: 3.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in January
Arlington, IL
- Average snowfall in January: 0.98"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Arlington, IL
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is January (8.6 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
Arlington, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Arlington, IL
- Average sunshine days in January: 21.4 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in January
Arlington, 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
Arlington, 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 33).
Average visibility in January
Arlington, 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).
Arlington, Illinois, USA
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