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 brings the lowest temperatures, with an average high of 28.6°F (-1.9°C) and an average low of 17.8°F (-7.9°C).Humidity
In January, the average relative humidity is 87%.Rainfall
In Porterville, in January, it is raining for 8.3 days, with typically 2.2" (56mm) of accumulated precipitation. In Porterville, during the entire year, the rain falls for 174.6 days and collects up to 29.29" (744mm) of precipitation.Snowfall
Months with snowfall in Porterville are January through May, October through December. In January, in Porterville, it is snowing for 19.7 days. Throughout January, 7.99" (203mm) of snow is accumulated. Throughout the year, there are 88.4 snowfall days, and 38.39" (975mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 28min.On the first day of January, sunrise is at 7:44 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:25 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 2.4h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Porterville. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 in January translates into these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Porterville?
How cold is January in Porterville?
What is the average humidity in January in Porterville?
How many days does it rain in January in Porterville?
How much does it snow in Porterville in January?
How many hours of daylight does Porterville have in January?
When is the sunrise / sunset in January in Porterville?
What is the month with the least sunshine in Porterville?
How long on average sun shines in January in Porterville?
What is the month with the lowest UV index in Porterville?
What is the UV index intensity in January in Porterville?
Average temperature in January
Porterville, NY
- Average high temperature in January: 28.6°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 (28.6°F).
- Average low temperature in January: 17.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in January
Porterville, NY
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Porterville, NY
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in January
Porterville, NY
- Average humidity in January: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May, July and September (78%).
Average rainfall in January
Porterville, NY
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in January
Porterville, NY
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (8 days).
Average snowfall in January
Porterville, NY
- Average snowfall in January: 7.99"
The month with the highest snowfall is February (9.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Porterville, NY
- Average snowfall days in January: 19.7 days
The month with the highest number of snowfall days is January (19.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Porterville, NY
- Average daylight in January: 9h and 3min
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 6min).
- Average sunshine in January: 2h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in January
Porterville, NY
- Average sunshine days in January: 5.8 days
The month with the most sunshine days is September (11.9 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in January
Porterville, 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
Porterville, NY
- Average cloud cover in January: 77
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Porterville, NY
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Porterville, New York, USA
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