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 West Portsmouth's coldest month, registering average high temperatures of 37.8°F (3.2°C) and lows of 24.3°F (-4.3°C).Humidity
The average relative humidity in January is 80%.Rainfall
In West Portsmouth, during January, the rain falls for 11.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in West Portsmouth, there are 170.4 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 3.19" (81mm) of snow.Daylight
The average length of the day in January in West Portsmouth is 9h and 49min.On the first day of the month, sunrise is at 7:50 am and sunset at 5:20 pm. On the last day of January, in West Portsmouth, sunrise is at 7:38 am and sunset at 5:52 pm EST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year in West Portsmouth.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 during January translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in West Portsmouth?
How cold is January in West Portsmouth?
What is the average humidity in January in West Portsmouth?
How many days does it rain in January in West Portsmouth?
When does it snow the most in West Portsmouth?
How many days does it snow in January in West Portsmouth?
How many hours of daylight does West Portsmouth have in January?
When is the sunrise / sunset in January in West Portsmouth?
What is the month with the least sunshine in West Portsmouth?
How many hours of sunshine does West Portsmouth have in January?
What are the months with the lowest UV index in West Portsmouth?
What is the UV index reading in January in West Portsmouth?
Average temperature in January
West Portsmouth, OH
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
West Portsmouth, OH
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
West Portsmouth, OH
- Average wind speed in January: 7.5mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
West Portsmouth, OH
- Average humidity in January: 80%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in January
West Portsmouth, OH
- Average rainfall in January: 2.28"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
West Portsmouth, OH
- Average rainfall days in January: 11.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in January
West Portsmouth, OH
- Average snowfall in January: 3.19"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
West Portsmouth, OH
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
West Portsmouth, OH
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
West Portsmouth, OH
- Average sunshine days in January: 11.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10 days).
Average UV index in January
West Portsmouth, OH
- Average UV index in January: 2
The months with the highest UV index are May, 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
West Portsmouth, OH
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
West Portsmouth, OH
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
West Portsmouth, Ohio, USA
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