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
January stands out as Lionville's coldest month, with temperatures ranging between an average high of 35.4°F (1.9°C) and a low of 23.7°F (-4.6°C).Humidity
In January, the average relative humidity is 77%.Rainfall
In January, the rain falls for 6.7 days. Throughout January, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 145.6 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Lionville, in January, during 4.6 snowfall days, 2.32" (59mm) of snow is typically accumulated. Throughout the year, in Lionville, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.Daylight
In Lionville, the average length of the day in January is 9h and 43min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:19 pm EST.
Sunshine
The average sunshine in January is 4.7h.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the average humidity in January in Lionville?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Lionville have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January in Lionville?
When is the lowest UV index?
What is the UV index reading in January in Lionville?
Average temperature in January
Lionville, PA
- Average high temperature in January: 35.4°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in January: 23.7°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in January
Lionville, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Lionville, PA
- Average wind speed in January: 8.5mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in January
Lionville, PA
- Average humidity in January: 77%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Lionville, PA
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in January
Lionville, PA
- Average rainfall days in January: 6.7 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in January
Lionville, PA
- Average snowfall in January: 2.32"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Lionville, PA
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Lionville, 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Lionville, PA
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in January
Lionville, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (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
Lionville, PA
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Lionville, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Lionville, Pennsylvania, USA
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