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
January proves to be the coldest month, recording an average maximum temperature of 37.6°F (3.1°C) and a minimum temperature of 28.9°F (-1.7°C).Humidity
In January, the average relative humidity in Commack is 72%.Rainfall
January is the month with the least rainfall. Rain falls for 7.8 days and accumulates 2.2" (56mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Commack. In Commack, in January, during 4.2 snowfall days, 1.14" (29mm) of snow is typically accumulated. In Commack, during the entire year, snow falls for 15.4 days and aggregates up to 5.71" (145mm) of snow.Daylight
The average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:08 pm EST.
Sunshine
In Commack, New York, the average sunshine in January is 5.2h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the coldest time of year in Commack?
How cold is it in Commack in January?
What is the average humidity in January in Commack?
What is the driest month in Commack?
How much does it rain in Commack in January?
How much does it snow in Commack in January?
What is the average length of the day in January in Commack?
When is the sunrise / sunset in January in Commack?
How long on average sun shines in January in Commack?
What is the month with the lowest UV index in Commack?
What is the UV index intensity in January in Commack?
Average temperature in January
Commack, NY
- Average high temperature in January: 37.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in January: 28.9°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in January
Commack, NY
- Average pressure in January: 30.05"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
Commack, NY
- Average wind speed in January: 12.8mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in January
Commack, NY
- Average humidity in January: 72%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Commack, NY
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in January
Commack, NY
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in January
Commack, NY
- Average snowfall in January: 1.14"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Commack, NY
- Average snowfall days in January: 4.2 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Commack, NY
- 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 18min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Commack, NY
- Average sunshine days in January: 18.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in January
Commack, 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 and December (UV index 2).
Average cloud cover in January
Commack, NY
- Average cloud cover in January: 44
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Commack, NY
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Commack, New York, USA
Weather forecast for your location
2. Allow the app to use your location
