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
Williamson, New York, experiences its lowest temperatures in January, with an average peak of 29.7°F (-1.3°C) and a low of 21°F (-6.1°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 83%.Rainfall
January is the month with the least rainfall in Williamson. Rain falls for 8.3 days and accumulates 2.05" (52mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Williamson. In January, it is snowing for 16.6 days. Throughout January, 4.17" (106mm) of snow is accumulated. In Williamson, during the entire year, snow falls for 67.1 days and aggregates up to 22.99" (584mm) of snow.Daylight
The average length of the day in January is 9h and 25min.On the first day of January in Williamson, sunrise is at 7:40 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:18 pm EST.
Sunshine
With an average of 2.6h of sunshine, January has the least sunshine of the year in Williamson.UV index
The months with the lowest UV index in Williamson are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: During January, 1 as the daily maximum UV index converts into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Williamson?
How cold is it in Williamson in January?
What is the most humid month in Williamson?
What is the average humidity in January in Williamson?
What is the driest month in Williamson?
How many days does it rain in January in Williamson?
How much does it snow in Williamson in January?
What is the average length of the day in January in Williamson?
When is the sunrise / sunset in January in Williamson?
What is the month with the least sunshine in Williamson?
How many hours of sunshine does Williamson have in January?
What is the month with the lowest UV index in Williamson?
What is the UV index reading in January in Williamson?
Average temperature in January
Williamson, NY
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 21°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in January
Williamson, 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 (29.92"Hg).
Average wind speed in January
Williamson, NY
- Average wind speed in January: 13.1mph
The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Williamson, NY
- Average humidity in January: 83%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (76%).
Average rainfall in January
Williamson, NY
- Average rainfall in January: 2.05"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in January
Williamson, NY
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in January
Williamson, NY
- Average snowfall in January: 4.17"
The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Williamson, NY
- Average snowfall days in January: 16.6 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Williamson, NY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in January
Williamson, NY
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is May (12.7 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in January
Williamson, NY
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Williamson, NY
- Average cloud cover in January: 75
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Williamson, NY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Williamson, New York, USA
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