Contents
- Weather in February
- Frequently asked questions
- Average temperature in February
- Average pressure in February
- Average wind speed in February
- Average humidity in February
- Average rainfall in February
- Average rainfall days in February
- Average snowfall in February
- Average snowfall days in February
- Average sea temperature in February
- Average daylight in February
- Average sunshine in February
- Average sunshine days in February
- Average UV index in February
- Average cloud cover in February
- Average visibility in February
Weather in February
Temperature
The transition into February is marked with an average high-temperature of a still cold 38.8°F (3.8°C), showing an insignificant shift from January's 37.6°F (3.1°C). Stony Brook notes a consistent average low-temperature of 30.4°F (-0.9°C) during February nights.Humidity
In February, the average relative humidity is 74%.Rainfall
In Stony Brook, in February, it is raining for 8.8 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Stony Brook, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall. In February, it is snowing for 4.4 days. Throughout February, 1.06" (27mm) of snow is accumulated. Throughout the year, in Stony Brook, New York, there are 12.6 snowfall days, and 5.59" (142mm) of snow is accumulated.Ocean temperature
With an average ocean temperature of 39.7°F (4.3°C), February is the month with the coldest seawater.Note: During swimming activities, this situation is lethal and fraught with danger. The frigid water triggers acute discomfort and swift hyperventilation. A specialized swimsuit is necessary to reduce thermal harm.
Daylight
In Stony Brook, the average length of the day in February is 10h and 40min.On the first day of February, sunrise is at 7:03 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 5:42 pm EST.
Sunshine
With an average of 4.7h of sunshine, February has the least sunshine of the year.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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In February, an average UV index of 2 transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during February?
What is the average humidity in February?
How many days does it rain in February?
How many days does it snow in February?
What is the month with the coldest ocean?
How cold is the water in February?
What is the average length of the day in February?
What time are sunrise and sunset in February?
What is the month with the least sunshine?
How many hours of sunshine does Stony Brook have in February?
When is the lowest UV index?
What is the UV index intensity in February?
Average temperature in February
Stony Brook, NY
- Average high temperature in February: 38.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in February: 30.4°F
The months with the highest average low temperature are July and August (71.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in February
Stony Brook, NY
- Average pressure in February: 30.02"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 February
Stony Brook, NY
- Average wind speed in February: 12.4mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in February
Stony Brook, NY
- Average humidity in February: 74%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in February
Stony Brook, NY
- Average rainfall in February: 2.17"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in February
Stony Brook, NY
- Average rainfall days in February: 8.8 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in February
Stony Brook, NY
- Average snowfall in February: 1.06"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in February
Stony Brook, NY
- Average snowfall days in February: 4.4 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in February
Stony Brook, NY
- Average sea temperature in February: 39.7°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in February /
Average sunshine in February
Stony Brook, NY
- Average daylight in February: 10h 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 February: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in February
Stony Brook, NY
- Average sunshine days in February: 15.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13 days).
Average UV index in February
Stony Brook, NY
- Average UV index in February: 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 February
Stony Brook, NY
- Average cloud cover in February: 48
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in February
Stony Brook, NY
- Average visibility in February: 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).
Stony Brook, New York, USA
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