January weather forecast
Kelso, WA

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Weather in January

January is a chilly winter month in Kelso, Washington, with an average temperature fluctuating between 33.4°F (0.8°C) and 44.2°F (6.8°C).

Temperature

Shifting into January, Kelso records an average high-temperature of a chilly 44.2°F (6.8°C), presenting minor fluctuations compared to the previous month. January witnesses an average nighttime temperature of 33.4°F (0.8°C).

Humidity

The months with the highest humidity in Kelso are January, February, November and December, with an average relative humidity of 88%.

Rainfall

The month with the most rainfall is January, when the rain falls for 18.7 days and typically aggregates up to 3.9" (99mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 1.7 days and typically aggregates up to 1.26" (32mm) of snow.

Daylight

In January, the average length of the day is 9h and 7min.
On the first day of January in Kelso, sunrise is at 7:54 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:14 pm PST.

Sunshine

January, February and December, with an average of 3.5h of sunshine, are months with the least sunshine.

UV index

In Kelso, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Kelso in January?

The average high-temperature, in January, in Kelso, is 44.2°F (6.8°C), while the average low-temperature is 33.4°F (0.8°C).

What is the most humid month?

The months with the highest humidity are January, February, November and December, with an average relative humidity of 88%.

What is the average humidity in January?

In January, the average relative humidity is 88%.

What is the wettest month?

January is the month with the most rainfall. Rain falls for 18.7 days and accumulates 3.9" (99mm) of precipitation.

How much does it rain in January?

In Kelso, during January, the rain falls for 18.7 days and regularly aggregates up to 3.9" (99mm) of precipitation.

What is the snowiest month in Kelso?

January is the month with the most snowfall. Snow falls for 1.7 days and accumulates 1.26" (32mm) of snow.

How many days does it snow in January?

In Kelso, in January, during 1.7 snowfall days, 1.26" (32mm) of snow is typically accumulated.

What is the average length of the day in January?

In Kelso, the average day length in January is 9h and 7min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:54 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:14 pm PST.

What is the month with the least sunshine?

January, February and December, with an average of 3.5h of sunshine, are months with the least sunshine.

How many hours of sunshine does Kelso have in January?

The average sunshine duration in January is 3.5h.

What is the UV index intensity in January in Kelso?

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
Kelso, WA

Average temperature in January - Kelso, WA
  • Average high temperature in January: 44.2°F

The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in January: 33.4°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).

Average pressure in January
Kelso, WA

Average pressure in January - Kelso, WA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in January
Kelso, WA

Average wind speed in January - Kelso, WA
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

Average humidity in January
Kelso, WA

Average humidity in January - Kelso, WA
  • Average humidity in January: 88%

The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).

Average rainfall in January
Kelso, WA

Average rainfall in January - Kelso, WA
  • Average rainfall in January: 3.9"

The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days in January
Kelso, WA

Average rainfall days in January - Kelso, WA
  • Average rainfall days in January: 18.7 days

The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).

Average snowfall in January
Kelso, WA

Average snowfall in January - Kelso, WA
  • Average snowfall in January: 1.26"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Kelso, WA

Average snowfall days in January - Kelso, WA
  • Average snowfall days in January: 1.7 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Kelso, WA

Average daylight in January / Average sunshine in January - Kelso, WA
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).

Average sunshine days in January
Kelso, WA

Average sunshine days in January - Kelso, WA
  • Average sunshine days in January: 10.6 days

The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).

Average UV index in January
Kelso, WA

Average UV index in January - Kelso, WA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in January
Kelso, WA

Average cloud cover in January - Kelso, WA
  • Average cloud cover in January: 64

The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in January
Kelso, WA

Average visibility in January - Kelso, WA
  • Average visibility in January: 4mi

The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).

Kelso, Washington, USA

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