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
Temperature records mark January as the coldest month, with highs averaging 37.4°F (3°C) and lows at 24.4°F (-4.2°C).Humidity
The average relative humidity in January in Portland, Kentucky, is 80%.Rainfall
In January, the rain falls for 9.9 days. Throughout January, 1.69" (43mm) of precipitation is accumulated. In Portland, during the entire year, the rain falls for 156.2 days and collects up to 26.1" (663mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 8.4 days and accumulates 1.89" (48mm) of snow.Daylight
In January, the average length of the day in Portland, Kentucky, is 9h and 49min.On the first day of January in Portland, Kentucky, sunrise is at 7:55 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:57 pm EST.
Sunshine
The month with the least sunshine in Portland is January, with an average of 4.1h of sunshine.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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What part of the year is the coldest in Portland?
How cold is January in Portland?
What is the average humidity in January in Portland?
How many days does it rain in January in Portland?
When does it snow the most in Portland?
How many days does it snow in January in Portland?
How many hours of daylight does Portland have in January?
When is the sunrise / sunset in January in Portland?
What is the month with the least sunshine in Portland?
How long on average sun shines in January in Portland?
What is the month with the lowest UV index in Portland?
What is the UV index intensity in January in Portland?
Average temperature in January
Portland, KY
- Average high temperature in January: 37.4°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in January: 24.4°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in January
Portland, 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 (29.95"Hg).
Average wind speed in January
Portland, KY
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in January
Portland, 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 (74%).
Average rainfall in January
Portland, KY
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in January
Portland, KY
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in January
Portland, KY
- Average snowfall in January: 1.89"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Portland, KY
- Average snowfall days in January: 8.4 days
The month with the highest number of snowfall days is January (8.4 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
Portland, 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: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Portland, KY
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in January
Portland, KY
- 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
Portland, KY
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Portland, KY
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and July (5mi).
Portland, Kentucky, USA
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