January weather forecastBelfast, PA
January
Weather in January
January, like December, in Belfast, Pennsylvania, is another cold winter month, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 20.7°F (-6.3°C).Temperature
The lowest temperatures are recorded in January, with averages reaching a high of 33.4°F (0.8°C) and a low of 20.7°F (-6.3°C).Humidity
The average relative humidity in January is 79%.Rainfall
In January, the rain falls for 7.3 days. Throughout January, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 139.9 rainfall days, and 19.88" (505mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Belfast, in January, during 6.4 snowfall days, 2.44" (62mm) of snow is typically accumulated. In Belfast, Pennsylvania, during the entire year, snow falls for 24.7 days and aggregates up to 10.94" (278mm) of snow.Daylight
In January, the average length of the day is 9h and 39min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:16 pm EST.
Sunshine
In January, the average sunshine is 4.8h.UV index
In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. 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
Belfast, PA
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in January
Belfast, PA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Belfast, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Belfast, PA
- Average humidity in January: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Belfast, PA
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is July (2.32").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in January
Belfast, PA
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Belfast, PA
- Average snowfall in January: 2.44"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Belfast, PA
- Average snowfall days in January: 6.4 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Belfast, PA
- Average daylight in January: 9h and 36min
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 18min).
- Average sunshine in January: 4h and 48min
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
Belfast, PA
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is July (13 days).
Average UV index in January
Belfast, PA
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Belfast, PA
- Average cloud cover in January: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in January
Belfast, PA
- Average visibility in January: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
