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
Temperature readings reach their annual highs in January, averaging 34.9°F (1.6°C) and a minimum average of 22.5°F (-5.3°C).Humidity
The average relative humidity in January is 77%.Rainfall
In January, in Rolling Hill Acres, Pennsylvania, the rain falls for 4.3 days. Throughout January, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 91.3 rainfall days, and 7.28" (185mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In January, in Rolling Hill Acres, it is snowing for 3.6 days. Throughout January, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 14.8 snowfall days, and 2.24" (57mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 40min.On the first day of January, sunrise is at 7:23 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:16 pm EST.
Sunshine
In January, the average sunshine in Rolling Hill Acres is 4.8h.UV index
The months with the lowest UV index 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 health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What part of the year is the coldest in Rolling Hill Acres?
How cold is it in Rolling Hill Acres in January?
What is the average humidity in January in Rolling Hill Acres?
How much does it rain in Rolling Hill Acres in January?
How many days does it snow in January in Rolling Hill Acres?
What is the average length of the day in January in Rolling Hill Acres?
When are sunrise and sunset in January in Rolling Hill Acres?
How long on average sun shines in January in Rolling Hill Acres?
What is the month with the lowest UV index in Rolling Hill Acres?
How high is the UV index in January in Rolling Hill Acres?
Average temperature in January
Rolling Hill Acres, PA
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Rolling Hill Acres, 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
Rolling Hill Acres, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Rolling Hill Acres, 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 (76%).
Average rainfall in January
Rolling Hill Acres, PA
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in January
Rolling Hill Acres, PA
- Average rainfall days in January: 4.3 days
The months with the highest number of rainy days are June and July (10.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in January
Rolling Hill Acres, PA
- Average snowfall in January: 0.35"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Rolling Hill Acres, PA
- Average snowfall days in January: 3.6 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rolling Hill Acres, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Rolling Hill Acres, PA
- Average sunshine days in January: 23.8 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in January
Rolling Hill Acres, PA
- Average UV index in January: 2
The months with the highest UV index are 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
Rolling Hill Acres, PA
- Average cloud cover in January: 47
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in January
Rolling Hill Acres, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, November and December (6mi).
The months with the lowest visibility are May, June, July, August, September and October (5mi).
Rolling Hill Acres, Pennsylvania, USA
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