January weather forecastMastic Beach, NY
January
Weather in January
January, like December, in Mastic Beach, New York, is an icy winter month, with an average temperature fluctuating between 38.7°F (3.7°C) and 30.6°F (-0.8°C).Temperature
January stands out as Mastic Beach's coldest month, with an average high-temperature of 38.7°F (3.7°C) and a low-temperature of 30.6°F (-0.8°C).Humidity
In January, the average relative humidity in Mastic Beach is 73%.Rainfall
January, February and September are months with the least rain when the rain falls for 10.1 days and typically aggregates up to 2.01" (51mm) of rain.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 5.3 days and typically aggregates up to 1.5" (38mm) of snow.Daylight
In Mastic Beach, the average length of the day in January is 9h and 39min.On the first day of the month, sunrise is at 7:15 am and sunset at 4:34 pm. On the last day of January, in Mastic Beach, sunrise is at 7:02 am and sunset at 5:07 pm EST.
Sunshine
In January, the average sunshine in Mastic Beach is 5.1h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Mastic Beach, New York. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mastic Beach, NY
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in January: 30.6°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in January
Mastic Beach, 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
Mastic Beach, NY
- Average wind speed in January: 14.5mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).
Average humidity in January
Mastic Beach, NY
- Average humidity in January: 73%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Mastic Beach, NY
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").
Average rainfall days in January
Mastic Beach, NY
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).
Average snowfall in January
Mastic Beach, NY
- Average snowfall in January: 1.5"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Mastic Beach, NY
- Average snowfall days in January: 5.3 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Mastic Beach, 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 months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Mastic Beach, NY
- Average sunshine days in January: 15.6 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in January
Mastic Beach, 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
Mastic Beach, NY
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Mastic Beach, 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).
