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 Lake Ronkonkoma, January is the month with the lowest recorded average temperatures, measuring a high of 37.9°F (3.3°C) and a low of 30.2°F (-1°C).Humidity
The average relative humidity in January is 72%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.3 days and typically collects 2.17" (55mm) of precipitation.Snowfall
January through March, May, October and December are months with snowfall. In Lake Ronkonkoma, in January, snow falls for 4.3 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, there are 14.7 snowfall days, and 6.14" (156mm) of snow is accumulated.Daylight
In Lake Ronkonkoma, the average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:03 am and sunset at 5:07 pm EST.
Sunshine
The average sunshine in January is 5.2h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January in Lake Ronkonkoma?
How many hours of daylight does Lake Ronkonkoma have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Lake Ronkonkoma have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Lake Ronkonkoma, NY
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 30.2°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in January
Lake Ronkonkoma, 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
Lake Ronkonkoma, NY
- Average wind speed in January: 13.8mph
The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).
Average humidity in January
Lake Ronkonkoma, NY
- Average humidity in January: 72%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in January
Lake Ronkonkoma, NY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in January
Lake Ronkonkoma, NY
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Lake Ronkonkoma, NY
- Average snowfall in January: 1.38"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").
Average snowfall days in January
Lake Ronkonkoma, NY
- Average snowfall days in January: 4.3 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Lake Ronkonkoma, 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
Lake Ronkonkoma, NY
- Average sunshine days in January: 18.4 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in January
Lake Ronkonkoma, 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
Lake Ronkonkoma, 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 27).
Average visibility in January
Lake Ronkonkoma, 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).
Lake Ronkonkoma, New York, USA
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