January weather forecastThiells, NY
January
Weather in January
January, the same as December, is an icy winter month in Thiells, New York, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 22.5°F (-5.3°C).Temperature
January, with average temperatures reaching a high of 34.7°F (1.5°C) and a low of 22.5°F (-5.3°C), is the coldest month.Humidity
In January, the average relative humidity is 76%.Rainfall
In Thiells, in January, during 7.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Thiells, during the entire year, the rain falls for 152.8 days and collects up to 30.79" (782mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Thiells, in January, snow falls for 5.7 days, with typically accumulated 2.52" (64mm) of snow. In Thiells, during the entire year, snow falls for 22.6 days and aggregates up to 12.28" (312mm) of snow.Daylight
In January, the average length of the day is 9h and 37min.On the first day of January, sunrise is at 7:21 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:10 pm EST.
Sunshine
The average sunshine in January is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Thiells, NY
- Average high temperature in January: 34.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Thiells, NY
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Thiells, NY
- Average wind speed in January: 7.5mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Thiells, NY
- Average humidity in January: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Thiells, NY
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is July (3.23").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Thiells, NY
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Thiells, NY
- Average snowfall in January: 2.52"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Thiells, NY
- Average snowfall days in January: 5.7 days
The month with the highest number of snowfall days is February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Thiells, NY
- 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: 5h and 6min
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 36min).
Average sunshine days in January
Thiells, NY
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in January
Thiells, NY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (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
Thiells, NY
- Average cloud cover in January: 44
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Thiells, NY
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).





