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
Mortonville records the coldest temperatures in January, averaging a high of 35.6°F (2°C) and a low of 23.4°F (-4.8°C).Humidity
In Mortonville, the average relative humidity in January is 77%.Rainfall
In Mortonville, in January, during 6.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Mortonville, during the entire year, the rain falls for 138.3 days and collects up to 19.76" (502mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Mortonville, in January, during 5.8 snowfall days, 1.65" (42mm) of snow is typically accumulated. In Mortonville, during the entire year, snow falls for 19.6 days and aggregates up to 7.64" (194mm) of snow.Daylight
In Mortonville, 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 4:48 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:20 pm EST.
Sunshine
In Mortonville, the average sunshine in January is 4.6h.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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the UV index of 2 transforms into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What is the average humidity in January in Mortonville?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Mortonville have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Mortonville have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Mortonville, PA
- Average high temperature in January: 35.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Mortonville, 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
Mortonville, PA
- Average wind speed in January: 8.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Mortonville, PA
- Average humidity in January: 77%
The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Mortonville, PA
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in January
Mortonville, PA
- Average rainfall days in January: 6.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in January
Mortonville, PA
- Average snowfall in January: 1.65"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mortonville, PA
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mortonville, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Mortonville, PA
- Average sunshine days in January: 18.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in January
Mortonville, 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
Mortonville, PA
- Average cloud cover in January: 48
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
Mortonville, 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).
Mortonville, Pennsylvania, USA
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