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
Belfast's coldest month, January, generally records average temperatures ranging from a high of 27.5°F (-2.5°C) to a low of 15.8°F (-9°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 89%.Rainfall
In Belfast, in January, during 6.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 170.2 rainfall days, and 29.29" (744mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Belfast, in January, during 20.4 snowfall days, 8.23" (209mm) of snow is typically accumulated. Throughout the year, there are 95.9 snowfall days, and 45.12" (1146mm) of snow is accumulated.Daylight
In Belfast, the average length of the day in January is 9h and 30min.On the first day of January, sunrise is at 7:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:24 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.5h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in January translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Belfast have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Belfast have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Belfast, NY
- Average high temperature in January: 27.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in January: 15.8°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in January
Belfast, NY
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Belfast, NY
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Belfast, NY
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in January
Belfast, NY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Belfast, NY
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in January
Belfast, NY
- Average snowfall in January: 8.23"
The month with the highest snowfall is February (11.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Belfast, NY
- Average snowfall days in January: 20.4 days
The month with the highest number of snowfall days is January (20.4 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, NY
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 2h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in January
Belfast, NY
- Average sunshine days in January: 6.4 days
The month with the most sunshine days is September (12 days).
The month with the least sunshine days is February (5.2 days).
Average UV index in January
Belfast, NY
- 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
Belfast, NY
- Average cloud cover in January: 78
The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in January
Belfast, NY
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Belfast, New York, USA
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