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
January is the month when Alton sees the lowest average temperatures, with a high 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. Rain falls for 8.3 days and accumulates 2.05" (52mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Alton, New York, in January, snow falls for 16.6 days, with typically accumulated 4.17" (106mm) of snow. Throughout the year, there are 67.1 snowfall days, and 22.99" (584mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 25min.On the first day of the month, sunrise is at 7:39 am and sunset at 4:42 pm. On the last day of January, in Alton, New York, sunrise is at 7:24 am and sunset at 5:18 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 2.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 1 in January leads to these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What are the most humid months?
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?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Alton have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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
Alton, 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).
Alton, New York, USA
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