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 time of the year is January, with temperatures averaging a high of 18°F (-7.8°C) and a low of 5°F (-15°C).Humidity
With an average relative humidity of 92%, January is the most humid month.Rainfall
The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.67" (17mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Graytown, in January, during 16.4 snowfall days, 3.94" (100mm) of snow is typically accumulated. In Graytown, 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 January, sunrise is at 7:47 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:29 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
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In January, a regular UV index of 1 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What is the most humid month?
What is the average humidity in January in Graytown?
What is the driest month in Graytown?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Graytown have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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
Graytown, 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).
Graytown, Wisconsin, USA
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