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 Altona, New York, January is the coldest month, with temperatures averaging a high of 23.5°F (-4.7°C) and a low of 10.6°F (-11.9°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 89%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 1.54" (39mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Altona, in January, snow falls for 16.6 days, with typically accumulated 7.95" (202mm) of snow. Throughout the year, there are 76.4 snowfall days, and 37.52" (953mm) of snow is accumulated.Daylight
In Altona, the average length of the day in January is 9h and 15min.On the first day of the month, sunrise is at 7:32 am and sunset at 4:23 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:00 pm EST.
Sunshine
In Altona, the average sunshine in January is 3h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 1 in January translates into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the most humid month?
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 Altona in January?
How many hours of daylight does Altona have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Altona have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Altona, NY
- Average high temperature in January: 23.5°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in January: 10.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in January
Altona, NY
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Altona, NY
- Average wind speed in January: 8.4mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
Altona, NY
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in January
Altona, NY
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in January
Altona, NY
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in January
Altona, NY
- Average snowfall in January: 7.95"
The month with the highest snowfall is February (8.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Altona, NY
- Average snowfall days in January: 16.6 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Altona, NY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in January
Altona, NY
- Average sunshine days in January: 12.1 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in January
Altona, NY
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Altona, NY
- Average cloud cover in January: 70
The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in January
Altona, NY
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).
Altona, New York, USA
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