January weather forecastPlymouth, WI
January
Weather in January
January, like December, is another subzero cold winter month in Plymouth, Wisconsin, with an average temperature fluctuating between 13.8°F (-10.1°C) and 23.9°F (-4.5°C).Temperature
In Plymouth, January is the month with the lowest recorded average temperatures, measuring a high of 23.9°F (-4.5°C) and a low of 13.8°F (-10.1°C).Humidity
January and February, with an average relative humidity of 87%, are the most humid months.Rainfall
In Plymouth, in January, during 4.6 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 146 rainfall days, and 29.17" (741mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13.4 days and accumulates 4.49" (114mm) of snow.Daylight
In Plymouth, the average length of the day in January is 9h and 22min.On the first day of January, sunrise is at 7:25 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:00 pm CST.
Sunshine
In Plymouth, the average sunshine in January is 3.6h.UV index
The months with the lowest UV index in Plymouth are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 1 in January transforms into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Plymouth, WI
- Average high temperature in January: 23.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in January: 13.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in January
Plymouth, WI
- Average pressure in January: 30.09"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Plymouth, WI
- Average wind speed in January: 11.2mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in January
Plymouth, WI
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).
Average rainfall in January
Plymouth, WI
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in January
Plymouth, WI
- Average rainfall days in January: 4.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Plymouth, WI
- Average snowfall in January: 4.49"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Plymouth, WI
- 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
Plymouth, WI
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in January
Plymouth, WI
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is December (15.8 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in January
Plymouth, WI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Plymouth, WI
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in January
Plymouth, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
