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
In South Valley Stream, the lowest average temperatures are observed in January, with a high of 37°F (2.8°C) and a low of 28.2°F (-2.1°C).Humidity
In South Valley Stream, the average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 7.3 days and typically collects 0.91" (23mm) of precipitation.Snowfall
January through March, October through December are months with snowfall in South Valley Stream. In January, it is snowing for 4.6 days. Throughout January, 0.67" (17mm) of snow is accumulated. In South Valley Stream, during the entire year, snow falls for 15.8 days and aggregates up to 2.95" (75mm) of snow.Daylight
The average length of the day in January in South Valley Stream, New York, is 9h and 40min.On the first day of January in South Valley Stream, sunrise is at 7:18 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:10 pm EST.
Sunshine
In January, the average sunshine in South Valley Stream is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Valley Stream. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 2 in January leads to these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What month is the coldest in South Valley Stream?
How cold is January in South Valley Stream?
What is the average humidity in January in South Valley Stream?
What is the driest month in South Valley Stream?
How much does it rain in South Valley Stream in January?
How much does it snow in South Valley Stream in January?
What is the average length of the day in January in South Valley Stream?
When is the sunrise / sunset in January in South Valley Stream?
How long on average sun shines in January in South Valley Stream?
What is the month with the lowest UV index in South Valley Stream?
What is the UV index reading in January in South Valley Stream?
Average temperature in January
South Valley Stream, NY
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is August (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in January
South Valley Stream, 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
South Valley Stream, NY
- Average wind speed in January: 12.4mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in January
South Valley Stream, NY
- Average humidity in January: 73%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).
Average rainfall in January
South Valley Stream, NY
- Average rainfall in January: 0.91"
The wettest months (with the highest rainfall) are July and August (2.32").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in January
South Valley Stream, NY
- 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
South Valley Stream, NY
- Average snowfall in January: 0.67"
The month with the highest snowfall is March (1.02").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in January
South Valley Stream, NY
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is January (4.6 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
South Valley Stream, NY
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
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
South Valley Stream, NY
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in January
South Valley Stream, 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
South Valley Stream, NY
- Average cloud cover in January: 43
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
South Valley Stream, 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).
South Valley Stream, New York, USA
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