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
Mainland notes the coldest temperatures in January, with a high average of 35.6°F (2°C) and a low of 23.5°F (-4.7°C).Humidity
In January, the average relative humidity is 76%.Rainfall
In January, the rain falls for 6.3 days. Throughout January, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Mainland, there are 116.6 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Mainland, in January, snow falls for 4.6 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, in Mainland, there are 14.8 snowfall days, and 3.5" (89mm) of snow is accumulated.Daylight
In Mainland, the average length of the day in January is 9h and 41min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:45 pm. On the last day of January, in Mainland, sunrise is at 7:11 am and sunset at 5:18 pm EST.
Sunshine
In January, the average sunshine is 4.9h.UV index
The months with the lowest UV index in Mainland 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 unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the coldest month in Mainland?
How cold is it in Mainland in January?
What is the average humidity in January in Mainland?
How much does it rain in Mainland in January?
How many days does it snow in January in Mainland?
What is the average length of the day in January in Mainland?
When is the sunrise / sunset in January in Mainland?
How many hours of sunshine does Mainland have in January?
When is the lowest UV index in Mainland?
What is the UV index intensity in January in Mainland?
Average temperature in January
Mainland, PA
- Average high temperature in January: 35.6°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 (35.6°F).
- Average low temperature in January: 23.5°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in January
Mainland, 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
Mainland, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in January
Mainland, PA
- Average humidity in January: 76%
The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in January
Mainland, PA
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in January
Mainland, PA
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in January
Mainland, PA
- Average snowfall in January: 0.71"
The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Mainland, PA
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is January (4.6 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
Mainland, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Mainland, PA
- Average sunshine days in January: 21.4 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in January
Mainland, 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
Mainland, PA
- Average cloud cover in January: 45
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Mainland, 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).
Mainland, Pennsylvania, USA
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