January weather forecast
Isom, KY

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Weather in January

January, like December, in Isom, Kentucky, is an icy winter month, with temperature in the range of an average low of 26.1°F (-3.3°C) and an average high of 39.9°F (4.4°C).

Temperature

January is the month when Isom sees the lowest average temperatures, with a high of 39.9°F (4.4°C) and a low of 26.1°F (-3.3°C).

Humidity

The average relative humidity in January is 80%.

Rainfall

In Isom, Kentucky, in January, it is raining for 10.3 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 169.1 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Isom are January through May, October through December. In January, it is snowing for 9.3 days. Throughout January, 4.92" (125mm) of snow is accumulated. In Isom, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.

Daylight

In Isom, the average length of the day in January is 9h and 57min.
On the first day of January in Isom, sunrise is at 7:45 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:54 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 4.3h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Isom?

Temperature readings in Isom, Kentucky, reach their annual highs in January, averaging 39.9°F (4.4°C) and a minimum average of 26.1°F (-3.3°C).

How cold is January in Isom?

During January, Isom experiences an average high-temperature of 39.9°F (4.4°C) and a low-temperature of 26.1°F (-3.3°C).

What is the average humidity in January in Isom?

The average relative humidity in January is 80%.

How much does it rain in Isom in January?

In January, in Isom, the rain falls for 10.3 days. Throughout January, 2.64" (67mm) of precipitation is accumulated.

How much does it snow in Isom in January?

In January, in Isom, it is snowing for 9.3 days. Throughout January, 4.92" (125mm) of snow is accumulated.

How many hours of daylight does Isom have in January?

The average day length in January in Isom is 9h and 57min.

What time are sunrise and sunset in January in Isom?

On the first day of January, sunrise is at 7:45 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:54 pm EST.

What is the month with the least sunshine in Isom?

January has the least sunshine of the year in Isom, with an average of 4.3h of sunshine.

How long on average sun shines in January in Isom?

In Isom, the average sunshine duration in January is 4.3h.

What are the months with the lowest UV index in Isom?

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

What is the UV index reading in January in Isom?

In January, the average daily maximum UV index in Isom is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Isom, KY

Average temperature in January - Isom, KY
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 26.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in January
Isom, KY

Average pressure in January - Isom, 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
Isom, KY

Average wind speed in January - Isom, KY
  • Average wind speed in January: 6.5mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in January
Isom, KY

Average humidity in January - Isom, 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
Isom, KY

Average rainfall in January - Isom, 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 (1.65").

Average rainfall days in January
Isom, KY

Average rainfall days in January - Isom, KY
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in January
Isom, KY

Average snowfall in January - Isom, KY
  • Average snowfall in January: 4.92"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Isom, KY

Average snowfall days in January - Isom, KY
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Isom, 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 42min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in January
Isom, KY

Average sunshine days in January - Isom, KY
  • Average sunshine days in January: 14.3 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in January
Isom, KY

Average UV index in January - Isom, 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
Isom, KY

Average cloud cover in January - Isom, KY
  • Average cloud cover in January: 59

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in January
Isom, KY

Average visibility in January - Isom, 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).

Isom, Kentucky, USA

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