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
Hartley, Kentucky, experiences its lowest average temperatures in January, reaching a peak of 39.9°F (4.4°C) and a minimum of 26.4°F (-3.1°C).Humidity
In January, the average relative humidity is 80%.Rainfall
In January, the rain falls for 13.9 days. Throughout January, 3.07" (78mm) of precipitation is accumulated. In Hartley, Kentucky, during the entire year, the rain falls for 201.6 days and collects up to 40.75" (1035mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Hartley, in January, snow falls for 12.4 days, with typically accumulated 5.87" (149mm) of snow. In Hartley, during the entire year, snow falls for 46.1 days and aggregates up to 24.8" (630mm) of snow.Daylight
In Hartley, the average length of the day in January is 9h and 56min.On the first day of January in Hartley, Kentucky, sunrise is at 7:44 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:53 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 4.3h 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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To cut down UV radiation exposure by about half, sport a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Hartley?
How cold is January in Hartley?
What is the average humidity in January in Hartley?
How many days does it rain in January in Hartley?
How much does it snow in Hartley in January?
What is the average length of the day in January in Hartley?
When is the sunrise / sunset in January in Hartley?
What is the month with the least sunshine in Hartley?
How many hours of sunshine does Hartley have in January?
What is the month with the lowest UV index in Hartley?
How high is the UV index in January in Hartley?
Average temperature in January
Hartley, KY
- Average high temperature in January: 39.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in January: 26.4°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in January
Hartley, 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 (29.99"Hg).
Average wind speed in January
Hartley, KY
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in January
Hartley, KY
- Average humidity in January: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in January
Hartley, KY
- Average rainfall in January: 3.07"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in January
Hartley, KY
- Average rainfall days in January: 13.9 days
The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in January
Hartley, KY
- Average snowfall in January: 5.87"
The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hartley, KY
- Average snowfall days in January: 12.4 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Hartley, KY
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 4h and 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Hartley, KY
- Average sunshine days in January: 9.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in January
Hartley, 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
Hartley, KY
- Average cloud cover in January: 58
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Hartley, 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).
Hartley, Kentucky, USA
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