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
Greenlawn's January weather, with an average high temperature of 37°F (2.8°C) and an average low temperature of 28.6°F (-1.9°C), tends to be the coldest of the year.Humidity
The average relative humidity in January is 72%.Rainfall
January is the month with the least rainfall. Rain falls for 8.1 days and accumulates 2.09" (53mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Greenlawn, New York, during January, snow falls for 4.1 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, in Greenlawn, there are 15.5 snowfall days, and 5.71" (145mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 38min.On the first day of January, sunrise is at 7:17 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:08 pm EST.
Sunshine
In January, the average sunshine in Greenlawn is 5.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Greenlawn. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in January suggests the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Greenlawn?
How cold is it in Greenlawn in January?
What is the average humidity in January in Greenlawn?
What is the driest month in Greenlawn?
How much does it rain in Greenlawn in January?
How many days does it snow in January in Greenlawn?
How many hours of daylight does Greenlawn have in January?
When is the sunrise / sunset in January in Greenlawn?
How long on average sun shines in January in Greenlawn?
What is the month with the lowest UV index in Greenlawn?
What is the UV index intensity in January in Greenlawn?
Average temperature in January
Greenlawn, NY
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 28.6°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in January
Greenlawn, 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
Greenlawn, NY
- Average wind speed in January: 12.2mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in January
Greenlawn, NY
- Average humidity in January: 72%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Greenlawn, NY
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in January
Greenlawn, NY
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in January
Greenlawn, NY
- Average snowfall in January: 1.18"
The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Greenlawn, NY
- Average snowfall days in January: 4.1 days
The month with the highest number of snowfall days is February (4.9 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
Greenlawn, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Greenlawn, NY
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in January
Greenlawn, 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
Greenlawn, NY
- Average cloud cover in January: 44
The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in January
Greenlawn, 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).
Greenlawn, New York, USA
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