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 period tends to be January, when average temperatures fluctuate between a high of 34.2°F (1.2°C) and a low of 21.2°F (-6°C).Humidity
The average relative humidity in January is 84%.Rainfall
In January, the rain falls for 8.6 days. Throughout January, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 139.7 rainfall days, and 12.95" (329mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 15.4 days and typically aggregates up to 2.64" (67mm) of snow.Daylight
In January, the average length of the day is 9h and 43min.On the first day of January, sunrise is at 7:40 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:36 pm EST.
Sunshine
With an average of 3h of sunshine, January has the least sunshine of the year in Star Junction.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does Star Junction have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Star Junction have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Star Junction, PA
- Average high temperature in January: 34.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in January: 21.2°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in January
Star Junction, PA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Star Junction, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Star Junction, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in January
Star Junction, PA
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in January
Star Junction, PA
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in January
Star Junction, PA
- Average snowfall in January: 2.64"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Star Junction, PA
- Average snowfall days in January: 15.4 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Star Junction, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Star Junction, PA
- Average sunshine days in January: 9.7 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is January (9.7 days).
Average UV index in January
Star Junction, PA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Star Junction, PA
- Average cloud cover in January: 69
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Star Junction, PA
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Star Junction, Pennsylvania, USA
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