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 35.1°F (1.7°C) and a low of 22.3°F (-5.4°C).Humidity
In Rockhill Station, the average relative humidity in January is 77%.Rainfall
In Rockhill Station, during January, the rain falls for 8.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Rockhill Station, during the entire year, the rain falls for 154.1 days and collects up to 31.73" (806mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Rockhill Station, during January, snow falls for 8.2 days and regularly aggregates up to 3.62" (92mm) of snow. In Rockhill Station, during the entire year, snow falls for 29.3 days and aggregates up to 16.57" (421mm) of snow.Daylight
In January, the average length of the day is 9h and 41min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:17 pm EST.
Sunshine
The average sunshine in January is 4.7h.UV index
The months with the lowest UV index in Rockhill Station are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Rockhill Station have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Rockhill Station have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rockhill Station, PA
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in January
Rockhill Station, PA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Rockhill Station, PA
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Rockhill Station, PA
- Average humidity in January: 77%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Rockhill Station, PA
- Average rainfall in January: 2.28"
The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Rockhill Station, PA
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Rockhill Station, PA
- Average snowfall in January: 3.62"
The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rockhill Station, PA
- Average snowfall days in January: 8.2 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rockhill Station, 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 18min).
- 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
Rockhill Station, PA
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in January
Rockhill Station, 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, March, November and December (UV index 2).
Average cloud cover in January
Rockhill Station, PA
- Average cloud cover in January: 48
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
Rockhill Station, PA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
Rockhill Station, Pennsylvania, USA
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