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
The coldest month is January, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C).Humidity
The average relative humidity in January is 77%.Rainfall
January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 1.85" (47mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 4.92" (125mm) of snow.Daylight
In Willow Hill, the average length of the day in January is 9h and 43min.On the first day of January, sunrise is at 7:33 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:28 pm EST.
Sunshine
In Willow Hill, the average sunshine in January is 4.5h.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 health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Willow Hill, PA
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.1°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in January
Willow Hill, 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
Willow Hill, PA
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
Willow Hill, PA
- Average humidity in January: 77%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in January
Willow Hill, PA
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in January
Willow Hill, PA
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Willow Hill, PA
- Average snowfall in January: 4.92"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Willow Hill, PA
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Willow Hill, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in January
Willow Hill, PA
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in January
Willow Hill, PA
- Average UV index in January: 2
The months with the highest UV index are 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
Willow Hill, PA
- Average cloud cover in January: 52
The months with the most cloud cover are January, February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Willow Hill, PA
- Average visibility in January: 5mi
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
Willow Hill, Pennsylvania, USA
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