January weather forecastSaint Johnsbury, VT
January
Weather in January
January in Saint Johnsbury, Vermont, witnesses severe winter conditions, characterized by a chill in the air. A snow-draped landscape is a common sight, considering it experiences considerable snowfall. It is a time when bundling up in warm clothes becomes a necessity, given the low temperatures. The month experiences the longest stretch of snowfall days at 20.5, with accumulated snowfall reaching 12.44" (316mm). As it sits in the middle of winter, January witnesses shorter daylight hours, which limits outdoor activities.Temperature
Temperature records mark January as the coldest month, with highs averaging 22.8°F (-5.1°C) and lows at 9.7°F (-12.4°C).Humidity
January and February, with an average relative humidity of 89%, are the most humid months.Rainfall
In Saint Johnsbury, Vermont, during January, the rain falls for 6.1 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Saint Johnsbury, during the entire year, the rain falls for 157.2 days and collects up to 28.35" (720mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 20.5 days and typically aggregates up to 12.44" (316mm) of snow.Daylight
In Saint Johnsbury, the average length of the day in January is 9h and 18min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:18 pm. On the last day of January, sunrise is at 7:07 am and sunset at 4:55 pm EST.
Sunshine
In January, the average sunshine is 2.9h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Johnsbury. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Saint Johnsbury, VT
- Average high temperature in January: 22.8°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in January: 9.7°F
The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in January
Saint Johnsbury, VT
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Saint Johnsbury, VT
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Saint Johnsbury, VT
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in January
Saint Johnsbury, VT
- Average rainfall in January: 2.32"
The wettest months (with the highest rainfall) are June and October (2.87").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in January
Saint Johnsbury, VT
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in January
Saint Johnsbury, VT
- Average snowfall in January: 12.44"
The month with the highest snowfall is January (12.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Saint Johnsbury, VT
- Average snowfall days in January: 20.5 days
The month with the highest number of snowfall days is February (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saint Johnsbury, VT
- Average daylight in January: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 2h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in January
Saint Johnsbury, VT
- Average sunshine days in January: 8.3 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (6.6 days).
Average UV index in January
Saint Johnsbury, VT
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Saint Johnsbury, VT
- Average cloud cover in January: 71
The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in January
Saint Johnsbury, VT
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
