January weather forecast
Harper, KY

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Weather in January

January, the same as December, is another cold winter month in Harper, Kentucky, with an average temperature ranging between min 26.8°F (-2.9°C) and max 40.1°F (4.5°C).

Temperature

In Harper, January is the month with the lowest recorded average temperatures, measuring a high of 40.1°F (4.5°C) and a low of 26.8°F (-2.9°C).

Humidity

In January, the average relative humidity is 79%.

Rainfall

In Harper, Kentucky, in January, it is raining for 12.6 days, with typically 2.64" (67mm) of accumulated precipitation. In Harper, during the entire year, the rain falls for 178.7 days and collects up to 34.8" (884mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Harper, in January, during 11.5 snowfall days, 3.5" (89mm) of snow is typically accumulated. In Harper, during the entire year, snow falls for 37.5 days and aggregates up to 15.43" (392mm) of snow.

Daylight

In Harper, the average length of the day in January is 9h and 54min.
On the first day of the month, sunrise is at 7:48 am and sunset at 5:24 pm. On the last day of January, sunrise is at 7:37 am and sunset at 5:54 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 4h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, a regular UV index of 2 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Harper's coldest weather arrives in January, when temperatures average a high of 40.1°F (4.5°C) and a low of 26.8°F (-2.9°C).

How cold is it in January?

The high-temperature, in January, in Harper, records 40.1°F (4.5°C), while the low-temperature is 26.8°F (-2.9°C).

What is the average humidity in January?

In January, the average relative humidity is 79%.

How many days does it rain in January?

In Harper, during January, the rain falls for 12.6 days and regularly aggregates up to 2.64" (67mm) of precipitation.

How many days does it snow in January?

In Harper, in January, snow falls for 11.5 days, with typically accumulated 3.5" (89mm) of snow.

What is the average length of the day in January?

In January, the average day length in Harper is 9h and 54min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:48 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:54 pm EST.

What is the month with the least sunshine?

With an average of 4h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

The average sunshine duration in January is 4h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

What is the UV index reading in January?

In Harper, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Harper, KY

Average temperature in January - Harper, KY
  • Average high temperature in January: 40.1°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in January: 26.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in January
Harper, KY

Average pressure in January - Harper, 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
Harper, KY

Average wind speed in January - Harper, KY
  • Average wind speed in January: 6.9mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in January
Harper, KY

Average humidity in January - Harper, KY
  • Average humidity in January: 79%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August and November (74%).

Average rainfall in January
Harper, KY

Average rainfall in January - Harper, KY
  • Average rainfall in January: 2.64"

The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in January
Harper, KY

Average rainfall days in January - Harper, KY
  • Average rainfall days in January: 12.6 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (11.6 days).

Average snowfall in January
Harper, KY

Average snowfall in January - Harper, KY
  • Average snowfall in January: 3.5"

The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Harper, KY

Average snowfall days in January - Harper, KY
  • Average snowfall days in January: 11.5 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Harper, KY

Average daylight in January / Average sunshine in January - Harper, 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 0min

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 0min).

Average sunshine days in January
Harper, KY

Average sunshine days in January - Harper, KY
  • Average sunshine days in January: 10.4 days

The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in January
Harper, KY

Average UV index in January - Harper, 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 and December (UV index 2).

Average cloud cover in January
Harper, KY

Average cloud cover in January - Harper, KY
  • Average cloud cover in January: 58

The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in January
Harper, KY

Average visibility in January - Harper, KY
  • Average visibility in January: 5mi

The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).

Harper, Kentucky, USA

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