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
Lafayette's January weather, marked by an average high temperature of 28.8°F (-1.8°C) and an average low temperature of 16.7°F (-8.5°C), is the coldest in the year.Humidity
The average relative humidity in January is 83%.Rainfall
January and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 1.42" (36mm) of rain.Snowfall
Months with snowfall in Lafayette are January through April, October through December. The month with the most snowfall is January, when snow falls for 11.4 days and typically aggregates up to 3.66" (93mm) of snow.Daylight
The average length of the day in January is 9h and 37min.On the first day of January in Lafayette, sunrise is at 7:24 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:14 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.9h of sunshine.UV index
The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: In January, a daily maximum UV index of 1 leads to the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What is the coldest time of year in Lafayette?
How cold is January in Lafayette?
What is the average humidity in January in Lafayette?
What is the driest month in Lafayette?
How much does it rain in Lafayette in January?
When does it snow the most in Lafayette?
How many days does it snow in January in Lafayette?
How many hours of daylight does Lafayette have in January?
When is the sunrise / sunset in January in Lafayette?
What is the month with the least sunshine in Lafayette?
How many hours of sunshine does Lafayette have in January?
What is the month with the lowest UV index in Lafayette?
What is the UV index reading in January in Lafayette?
Average temperature in January
Lafayette, IL
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in January: 16.7°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in January
Lafayette, IL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Lafayette, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Lafayette, IL
- Average humidity in January: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Lafayette, IL
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in January
Lafayette, IL
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in January
Lafayette, IL
- Average snowfall in January: 3.66"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Lafayette, IL
- Average snowfall days in January: 11.4 days
The month with the highest number of snowfall days is January (11.4 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
Lafayette, 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 18min).
- Average sunshine in January: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Lafayette, IL
- Average sunshine days in January: 15.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in January
Lafayette, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Lafayette, IL
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in January
Lafayette, 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).
Lafayette, Illinois, USA
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