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
Clayton witnesses the coldest weather in January, with temperatures averaging a high of 18°F (-7.8°C) and a low of 5°F (-15°C).Humidity
January is the most humid month, with an average relative humidity of 92%.Rainfall
January is the month with the least rainfall in Clayton. Rain falls for 2.7 days and accumulates 0.67" (17mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 16.4 days. Throughout January, 3.94" (100mm) of snow is accumulated. In Clayton, during the entire year, snow falls for 74.5 days and aggregates up to 24.06" (611mm) of snow.Daylight
In January, the average length of the day is 9h and 13min.On the first day of the month, sunrise is at 7:48 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:30 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In January, the UV index of 1 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Clayton?
How cold is January in Clayton?
What is the most humid month?
What is the average humidity in January?
What is the driest month in Clayton?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Clayton have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Clayton have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Clayton, WI
- Average high temperature in January: 18°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in January: 5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in January
Clayton, WI
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Clayton, WI
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in January
Clayton, WI
- Average humidity in January: 92%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Clayton, WI
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
Clayton, WI
- Average rainfall days in January: 2.7 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in January
Clayton, WI
- Average snowfall in January: 3.94"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Clayton, WI
- Average snowfall days in January: 16.4 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Clayton, WI
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in January
Clayton, WI
- Average sunshine days in January: 14.1 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in January
Clayton, WI
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Clayton, WI
- Average cloud cover in January: 72
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in January
Clayton, WI
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Clayton, Wisconsin, USA
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