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
The coldest month is January, with an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 16.2°F (-8.8°C).Humidity
The average relative humidity in January is 83%.Rainfall
In Plano, in January, it is raining for 6.3 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, in Plano, Illinois, there are 168.3 rainfall days, and 35.47" (901mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 13.4 days and typically aggregates up to 4.88" (124mm) of snow.Daylight
In January, the average length of the day is 9h and 34min.On the first day of January, sunrise is at 7:21 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:07 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
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Plano. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What time of the year is the coldest in Plano?
How cold is it in Plano in January?
What is the average humidity in January in Plano?
How many days does it rain in January in Plano?
What is the snowiest month in Plano?
How many days does it snow in January in Plano?
What is the average length of the day in January in Plano?
What time are sunrise and sunset in January in Plano?
What is the month with the least sunshine in Plano?
How long on average sun shines in January in Plano?
When is the lowest UV index in Plano?
How high is the UV index in January in Plano?
Average temperature in January
Plano, IL
- Average high temperature in January: 28.2°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 (28.2°F).
- Average low temperature in January: 16.2°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 (16.2°F).
Average pressure in January
Plano, 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 (29.92"Hg).
Average wind speed in January
Plano, IL
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are January and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Plano, IL
- Average humidity in January: 83%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Plano, IL
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is May (4.88").
The driest month (with the least rainfall) is November (1.73").
Average rainfall days in January
Plano, IL
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in January
Plano, IL
- Average snowfall in January: 4.88"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Plano, IL
- Average snowfall days in January: 13.4 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Plano, 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 months with the most sunshine are June and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Plano, IL
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in January
Plano, 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
Plano, IL
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in January
Plano, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Plano, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
