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
During the coldest month, January, temperatures average a high of 28.8°F (-1.8°C) and a low of 17.1°F (-8.3°C).Humidity
The average relative humidity in January is 84%.Rainfall
January is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.22" (31mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 17.8 days. Throughout January, 3.86" (98mm) of snow is accumulated. Throughout the year, there are 71.4 snowfall days, and 16.54" (420mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 34min.On the first day of January, sunrise is at 7:35 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:22 pm EST.
Sunshine
In January, the average sunshine is 3.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 1 in January translates into this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Duncan have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Duncan, PA
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in January: 17.1°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in January
Duncan, 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
Duncan, PA
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Duncan, PA
- Average humidity in January: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in January
Duncan, PA
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in January
Duncan, PA
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in January
Duncan, PA
- Average snowfall in January: 3.86"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Duncan, PA
- Average snowfall days in January: 17.8 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Duncan, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in January
Duncan, PA
- Average sunshine days in January: 9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in January
Duncan, PA
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Duncan, PA
- Average cloud cover in January: 68
The months with the most cloud cover are January and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in January
Duncan, PA
- Average visibility in January: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Duncan, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location