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 month of January sees the lowest average temperatures, reaching 35.8°F (2.1°C) at the peak and 22.6°F (-5.2°C) at the low.Humidity
In January, the average relative humidity is 76%.Rainfall
In Rouzerville, in January, during 8.2 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, in Rouzerville, Pennsylvania, there are 158.5 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall in Rouzerville. Snow falls for 9.6 days and accumulates 6.81" (173mm) of snow.Daylight
In January, the average length of the day in Rouzerville is 9h and 44min.On the first day of the month, sunrise is at 7:31 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:19 am and sunset at 5:27 pm EST.
Sunshine
In January, the average sunshine in Rouzerville is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during January translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What is the coldest month in Rouzerville?
How cold is January in Rouzerville?
What is the average humidity in January in Rouzerville?
How many days does it rain in January in Rouzerville?
What is the snowiest month in Rouzerville?
How much does it snow in Rouzerville in January?
What is the average length of the day in January in Rouzerville?
When is the sunrise / sunset in January in Rouzerville?
How long on average sun shines in January in Rouzerville?
What are the months with the lowest UV index in Rouzerville?
How high is the UV index in January in Rouzerville?
Average temperature in January
Rouzerville, PA
- Average high temperature in January: 35.8°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in January: 22.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in January
Rouzerville, PA
- Average pressure in January: 30.1"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
Rouzerville, PA
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in January
Rouzerville, PA
- Average humidity in January: 76%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in January
Rouzerville, PA
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in January
Rouzerville, PA
- Average rainfall days in January: 8.2 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in January
Rouzerville, PA
- Average snowfall in January: 6.81"
The month with the highest snowfall is January (6.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Rouzerville, PA
- Average snowfall days in January: 9.6 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rouzerville, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Rouzerville, PA
- Average sunshine days in January: 16 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in January
Rouzerville, PA
- Average UV index in January: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Rouzerville, PA
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Rouzerville, PA
- Average visibility in January: 5mi
The months with the highest visibility are April, June and July (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (5mi).
Rouzerville, Pennsylvania, USA
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