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 month of January sees the lowest average temperatures, reaching 37.8°F (3.2°C) at the peak and 24.3°F (-4.3°C) at the low.Humidity
In January, the average relative humidity in South Portsmouth is 80%.Rainfall
In South Portsmouth, in January, during 11.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in South Portsmouth, there are 170.4 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall in South Portsmouth is January, when snow falls for 10.6 days and typically aggregates up to 3.19" (81mm) of snow.Daylight
In January, the average length of the day in South Portsmouth is 9h and 49min.On the first day of January, sunrise is at 7:50 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:52 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.9h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Portsmouth. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in January translates into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the coldest time of year in South Portsmouth?
How cold does it get in South Portsmouth in January?
What is the average humidity in January in South Portsmouth?
How much does it rain in South Portsmouth in January?
What is the snowiest month in South Portsmouth?
How much does it snow in South Portsmouth in January?
What is the average length of the day in January in South Portsmouth?
When is the sunrise / sunset in January in South Portsmouth?
What is the month with the least sunshine in South Portsmouth?
How long on average sun shines in January in South Portsmouth?
What are the months with the lowest UV index in South Portsmouth?
What is the UV index intensity in January in South Portsmouth?
Average temperature in January
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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
South Portsmouth, KY
- 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).
South Portsmouth, Kentucky, USA
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