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
Port William witnesses the coldest weather in January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 21.7°F (-5.7°C).Humidity
With an average relative humidity of 83%, January is the most humid month.Rainfall
In Port William, during January, the rain falls for 10.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 169.3 rainfall days, and 32.99" (838mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 12.2 days. Throughout January, 3.31" (84mm) of snow is accumulated. In Port William, during the entire year, snow falls for 43.7 days and aggregates up to 14.45" (367mm) of snow.Daylight
In Port William, the average length of the day in January is 9h and 45min.On the first day of the month, sunrise is at 7:55 am and sunset at 5:21 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:53 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 3.6h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 2 in January translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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 part of the year is the coldest?
How cold is January?
What is the most humid month?
What is the average humidity in January in Port William?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Port William have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Port William have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Port William, OH
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in January
Port William, OH
- Average pressure in January: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Port William, OH
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Port William, OH
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in January
Port William, OH
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Port William, OH
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in January
Port William, OH
- Average snowfall in January: 3.31"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Port William, OH
- Average snowfall days in January: 12.2 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Port William, OH
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
Port William, OH
- Average sunshine days in January: 11.1 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in January
Port William, OH
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Port William, OH
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Port William, OH
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Port William, Ohio, USA
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