January weather forecastHillsdale, NY
January
Weather in January
January, like December, is another subzero cold winter month in Hillsdale, New York, with an average temperature varying between 29.7°F (-1.3°C) and 17.2°F (-8.2°C).Temperature
January is the coldest month, with the temperature often reaching an average high of 29.7°F (-1.3°C) and an average low of 17.2°F (-8.2°C).Humidity
In Hillsdale, the average relative humidity in January is 81%.Rainfall
The month with the least rainfall is January, when the rain falls for 5.4 days and typically collects 1.1" (28mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hillsdale, in January, snow falls for 8.5 days, with typically accumulated 3.46" (88mm) of snow. Throughout the year, there are 37.3 snowfall days, and 15.79" (401mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 31min.On the first day of January, sunrise is at 7:22 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:06 pm EST.
Sunshine
In January, the average sunshine is 4.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hillsdale. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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
Average temperature in January
Hillsdale, NY
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 17.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in January
Hillsdale, NY
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Hillsdale, NY
- Average wind speed in January: 7.9mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Hillsdale, NY
- Average humidity in January: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Hillsdale, NY
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in January
Hillsdale, NY
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in January
Hillsdale, NY
- Average snowfall in January: 3.46"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hillsdale, NY
- Average snowfall days in January: 8.5 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Hillsdale, NY
- Average daylight in January: 9h and 30min
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 12min).
- Average sunshine in January: 4h and 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in January
Hillsdale, NY
- Average sunshine days in January: 19.7 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in January
Hillsdale, NY
- Average UV index in January: 2
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, February, March, October, November and December (UV index 2).
Average cloud cover in January
Hillsdale, NY
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in January
Hillsdale, NY
- Average visibility in January: 6mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).





