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
With average high temperatures of 28.2°F (-2.1°C) and lows of 16.9°F (-8.4°C), January is the coldest month.Humidity
The average relative humidity in January in Sylvester, Pennsylvania, is 84%.Rainfall
In Sylvester, Pennsylvania, during January, the rain falls for 8.6 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, in Sylvester, there are 168.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sylvester, in January, during 18.8 snowfall days, 6.77" (172mm) of snow is typically accumulated. In Sylvester, Pennsylvania, during the entire year, snow falls for 80.4 days and aggregates up to 33.03" (839mm) of snow.Daylight
The average length of the day in January in Sylvester is 9h and 32min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:49 pm. On the last day of January, in Sylvester, Pennsylvania, sunrise is at 7:24 am and sunset at 5:23 pm EST.
Sunshine
The months with the least sunshine in Sylvester are January, February and December, with an average of 3.1h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in January interprets into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Sylvester?
How cold is it in Sylvester in January?
What is the average humidity in January in Sylvester?
How many days does it rain in January in Sylvester?
How many days does it snow in January in Sylvester?
How many hours of daylight does Sylvester have in January?
When are sunrise and sunset in January in Sylvester?
What are the months with the least sunshine in Sylvester?
How long on average sun shines in January in Sylvester?
What is the month with the lowest UV index in Sylvester?
What is the UV index reading in January in Sylvester?
Average temperature in January
Sylvester, PA
- Average high temperature in January: 28.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in January: 16.9°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in January
Sylvester, PA
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Sylvester, PA
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Sylvester, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in January
Sylvester, PA
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in January
Sylvester, PA
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in January
Sylvester, PA
- Average snowfall in January: 6.77"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sylvester, PA
- Average snowfall days in January: 18.8 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sylvester, PA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).
Average sunshine days in January
Sylvester, PA
- Average sunshine days in January: 8.2 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in January
Sylvester, PA
- 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 and December (UV index 1).
Average cloud cover in January
Sylvester, PA
- Average cloud cover in January: 71
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in January
Sylvester, PA
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Sylvester, Pennsylvania, USA
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