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
During the coldest month, January, temperatures average a high of 23.7°F (-4.6°C) and a low of 11.7°F (-11.3°C).Humidity
With an average relative humidity of 89%, January is the most humid month.Rainfall
In Watertown, during January, the rain falls for 3.1 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Watertown, during the entire year, the rain falls for 113.9 days and collects up to 11.57" (294mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall in Watertown. Snow falls for 12.1 days and accumulates 1.61" (41mm) of snow.Daylight
In January, the average length of the day is 9h and 25min.On the first day of the month, sunrise is at 7:26 am and sunset at 4:29 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:05 pm CST.
Sunshine
With an average of 3.4h of sunshine, January has the least sunshine of the year in Watertown, Wisconsin.UV index
January, 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 low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during January translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. To guard against the harmful effects of the Sun, minimize exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What part of the year is the coldest in Watertown?
How cold is January in Watertown?
What is the most humid month in Watertown?
What is the average humidity in January in Watertown?
How much does it rain in Watertown in January?
What is the snowiest month in Watertown?
How much does it snow in Watertown in January?
What is the average length of the day in January in Watertown?
What time are sunrise and sunset in January in Watertown?
What is the month with the least sunshine in Watertown?
How many hours of sunshine does Watertown have in January?
What are the months with the lowest UV index in Watertown?
How high is the UV index in January in Watertown?
Average temperature in January
Watertown, WI
- Average high temperature in January: 23.7°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in January: 11.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in January
Watertown, WI
- Average pressure in January: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Watertown, WI
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Watertown, WI
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Watertown, WI
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in January
Watertown, WI
- Average rainfall days in January: 3.1 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3 days).
Average snowfall in January
Watertown, WI
- Average snowfall in January: 1.61"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Watertown, WI
- Average snowfall days in January: 12.1 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Watertown, WI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Watertown, WI
- Average sunshine days in January: 16.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in January
Watertown, WI
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Watertown, WI
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in January
Watertown, WI
- 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).
Watertown, Wisconsin, USA
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