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
With average temperatures fluctuating between a high of 37.2°F (2.9°C) and a low of 28.6°F (-1.9°C), January stands out as the coldest month.Humidity
The average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 8 days and typically collects 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In East Williston, during January, snow falls for 4.6 days and regularly aggregates up to 1.26" (32mm) of snow. In East Williston, during the entire year, snow falls for 15.8 days and aggregates up to 5.91" (150mm) of snow.Daylight
In East Williston, the average length of the day in January is 9h and 39min.On the first day of January, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:10 pm EST.
Sunshine
The average sunshine in January 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. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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 much does it snow in January?
How many hours of daylight does East Williston have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January in East Williston?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
East Williston, NY
- Average high temperature in January: 37.2°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in January: 28.6°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in January
East Williston, NY
- Average pressure in January: 30.05"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
East Williston, 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 (8.1mph).
Average humidity in January
East Williston, NY
- Average humidity in January: 73%
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
East Williston, NY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in January
East Williston, NY
- Average rainfall days in January: 8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8 days).
Average snowfall in January
East Williston, NY
- Average snowfall in January: 1.26"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
East Williston, NY
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is February (4.7 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
East Williston, 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
East Williston, NY
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
East Williston, 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
East Williston, 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
East Williston, 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).
East Williston, New York, USA
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