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
The coldest month is January, with an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C).Humidity
January and February, with an average relative humidity of 89%, are the most humid months.Rainfall
In Portville, in January, during 6.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Portville, during the entire year, the rain falls for 168.9 days and collects up to 30" (762mm) of precipitation.Snowfall
Months with snowfall in Portville, New York, are January through May, October through December. In Portville, New York, in January, snow falls for 20.2 days, with typically accumulated 8.15" (207mm) of snow. Throughout the year, in Portville, there are 92.6 snowfall days, and 43.58" (1107mm) of snow is accumulated.Daylight
In January, the average length of the day in Portville is 9h and 32min.On the first day of January, sunrise is at 7:41 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:26 pm EST.
Sunshine
January has the least sunshine of the year in Portville, with an average of 2.3h of sunshine.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 1 in January leads to these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the coldest time of year in Portville?
How cold is it in Portville in January?
What is the most humid month in Portville?
What is the average humidity in January in Portville?
How many days does it rain in January in Portville?
How many days does it snow in January in Portville?
What is the average length of the day in January in Portville?
What time are sunrise and sunset in January in Portville?
What is the month with the least sunshine in Portville?
How many hours of sunshine does Portville have in January?
What is the month with the lowest UV index in Portville?
How high is the UV index in January in Portville?
Average temperature in January
Portville, NY
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 15.8°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in January
Portville, NY
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Portville, NY
- Average wind speed in January: 9.7mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Portville, 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 May, June and July (79%).
Average rainfall in January
Portville, NY
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Portville, NY
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in January
Portville, NY
- Average snowfall in January: 8.15"
The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Portville, NY
- Average snowfall days in January: 20.2 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Portville, NY
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 2h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in January
Portville, NY
- Average sunshine days in January: 6.7 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in January
Portville, NY
- Average UV index in January: 1
The months with the highest UV index are May, 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
Portville, NY
- Average cloud cover in January: 79
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in January
Portville, NY
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
Portville, New York, USA
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