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
With an average high-temperature of 40.6°F (4.8°C) and an average low-temperature of 26.8°F (-2.9°C), January is the coldest month.Humidity
In January, the average relative humidity in Harlan is 79%.Rainfall
In January, in Harlan, the rain falls for 13.3 days. Throughout January, 3.35" (85mm) of precipitation is accumulated. Throughout the year, there are 190.4 rainfall days, and 40.28" (1023mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 10 days and typically aggregates up to 4.21" (107mm) of snow.Daylight
In January, the average length of the day in Harlan is 9h and 59min.On the first day of the month, sunrise is at 7:46 am and sunset at 5:27 pm. On the last day of January, in Harlan, sunrise is at 7:36 am and sunset at 5:57 pm EST.
Sunshine
January has the least sunshine of the year in Harlan, Kentucky, with an average of 4.4h 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 minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 2 in January transforms into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Harlan?
How cold does it get in Harlan in January?
What is the average humidity in January in Harlan?
How many days does it rain in January in Harlan?
When does it snow the most in Harlan?
How much does it snow in Harlan in January?
How many hours of daylight does Harlan have in January?
What time are sunrise and sunset in January in Harlan?
What is the month with the least sunshine in Harlan?
How long on average sun shines in January in Harlan?
What is the month with the lowest UV index in Harlan?
What is the UV index intensity in January in Harlan?
Average temperature in January
Harlan, KY
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 26.8°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in January
Harlan, KY
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Harlan, KY
- Average wind speed in January: 6.2mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Harlan, KY
- Average humidity in January: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April, June, August and November (77%).
Average rainfall in January
Harlan, KY
- Average rainfall in January: 3.35"
The wettest month (with the highest rainfall) is February (4.57").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in January
Harlan, KY
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in January
Harlan, KY
- Average snowfall in January: 4.21"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Harlan, KY
- Average snowfall days in January: 10 days
The month with the highest number of snowfall days is January (10 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
Harlan, KY
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Harlan, KY
- Average sunshine days in January: 11 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in January
Harlan, KY
- Average UV index in January: 2
The months with the highest UV index are May, June 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
Harlan, KY
- Average cloud cover in January: 57
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Harlan, KY
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Harlan, Kentucky, USA
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