January weather forecastBerwyn, PA
January
Weather in January
January, the same as December, is an icy winter month in Berwyn, Pennsylvania, with an average temperature fluctuating between 24.3°F (-4.3°C) and 36.5°F (2.5°C).Temperature
January brings the lowest temperatures, with an average high of 36.5°F (2.5°C) and an average low of 24.3°F (-4.3°C).Humidity
In Berwyn, the average relative humidity in January is 76%.Rainfall
The months with the least rainfall are January, February and November Rain falls for 6.3 days and accumulates 1.3" (33mm) of rain.Snowfall
January through May, October through December are months with snowfall. In Berwyn, in January, snow falls for 6.1 days, with typically accumulated 1.69" (43mm) of snow. In Berwyn, during the entire year, snow falls for 19.3 days and aggregates up to 7.68" (195mm) of snow.Daylight
In January, the average length of the day is 9h and 43min.On the first day of January in Berwyn, sunrise is at 7:23 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:18 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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during January leads to these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Berwyn, PA
- Average high temperature in January: 36.5°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Berwyn, PA
- Average pressure in January: 30.09"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
Berwyn, PA
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Berwyn, PA
- Average humidity in January: 76%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in January
Berwyn, PA
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is August (2.72").
The driest months (with the least rainfall) are January, February and November (1.3").
Average rainfall days in January
Berwyn, PA
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
Berwyn, PA
- Average snowfall in January: 1.69"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Berwyn, PA
- Average snowfall days in January: 6.1 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Berwyn, PA
- Average daylight in January: 9h and 42min
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 42min
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
Berwyn, PA
- Average sunshine days in January: 19 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in January
Berwyn, 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
Berwyn, PA
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Berwyn, 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).
