January weather forecastLower Allen, PA
January
Weather in January
January, like December, in Lower Allen, Pennsylvania, is another cold winter month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 35.2°F (1.8°C).Temperature
January, marked by an average high-temperature of 35.2°F (1.8°C) and a low-temperature of 22.3°F (-5.4°C), is the coldest month.Humidity
The average relative humidity in January is 77%.Rainfall
The months with the least rainfall are January and September Rain falls for 7.3 days and accumulates 1.3" (33mm) of rain.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 7.1 days and typically aggregates up to 2.4" (61mm) of snow.Daylight
In Lower Allen, the average length of the day in January is 9h and 42min.On the first day of January, sunrise is at 7:30 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:24 pm EST.
Sunshine
In Lower Allen, the average sunshine in January is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Lower Allen, PA
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in January
Lower Allen, 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
Lower Allen, PA
- Average wind speed in January: 8.2mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Lower Allen, PA
- Average humidity in January: 77%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Lower Allen, PA
- Average rainfall in January: 1.3"
The wettest months (with the highest rainfall) are May and August (2.09").
The driest months (with the least rainfall) are January and September (1.3").
Average rainfall days in January
Lower Allen, PA
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Lower Allen, PA
- Average snowfall in January: 2.4"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Lower Allen, PA
- Average snowfall days in January: 7.1 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Lower Allen, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Lower Allen, PA
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12 days).
Average UV index in January
Lower Allen, 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
Lower Allen, PA
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Lower Allen, 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).
