January weather forecastValley, WA

January

Weather in January

January, the same as December, in Valley, Washington, is a freezing cold winter month, with an average temperature fluctuating between 19°F (-7.2°C) and 31.1°F (-0.5°C).

Temperature

During January, Valley records an average high-temperature of a still freezing cold 31.1°F (-0.5°C), marking a slight divergence from December's 29.8°F (-1.2°C). Valley's average low-temperature in January is measured at a still freezing cold 19°F (-7.2°C).

Humidity

With an average relative humidity of 94%, January is the most humid month in Valley.

Rainfall

January is the month with the most rainfall. Rain falls for 12 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

January through April, September through December are months with snowfall in Valley. January is the month with the most snowfall in Valley. Snow falls for 13.3 days and accumulates 10.47" (266mm) of snow.

Daylight

The average length of the day in January is 8h and 53min.
On the first day of the month, sunrise is at 7:41 am and sunset at 4:07 pm. On the last day of January, in Valley, sunrise is at 7:20 am and sunset at 4:48 pm PST.

Sunshine

January has the least sunshine of the year in Valley, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index in Valley are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 1 in January transforms into this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Valley during January are 31.1°F (-0.5°C) and 19°F (-7.2°C) respectively.

The most humid month in Valley, Washington, is January, with an average relative humidity of 94%.

In Valley, Washington, the average relative humidity in January is 94%.

The month with the most rainfall in Valley, Washington, is January, when the rain falls for 12 days and typically aggregates up to 2.2" (56mm) of precipitation.

In Valley, Washington, in January, during 12 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

The month with the most snowfall in Valley is January, when snow falls for 13.3 days and typically aggregates up to 10.47" (266mm) of snow.

In Valley, during January, snow falls for 13.3 days and regularly aggregates up to 10.47" (266mm) of snow.

In January, the average day length in Valley, Washington, is 8h and 53min.

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:48 pm PST.

January has the least sunshine of the year in Valley, Washington, with an average of 3.6h of sunshine.

The average sunshine duration in January in Valley, Washington, is 3.6h.

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Valley, Washington.

In Valley, Washington, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

29.8°F

31.1°F

33.8°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

3.8mph

3.9mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.1

10.1

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Valley, WA

Average high temperature in January: 31.1°F

The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (29.8°F).

Average low temperature in January: 19°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).

Average pressure in January
Valley, WA

Average pressure in January: 30.19"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in January
Valley, WA

Average wind speed in January: 3.5mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

Average humidity in January
Valley, WA

Average humidity in January: 94%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).

Average rainfall in January
Valley, WA

Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is January (2.2").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in January
Valley, WA

Average rainfall days in January: 12 days

The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.6 days).

Average snowfall in January
Valley, WA

Average snowfall in January: 10.47"

The month with the highest snowfall is January (10.47").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in January
Valley, WA

Average snowfall days in January: 13.3 days

The month with the highest number of snowfall days is December (15.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in January: 8h and 54min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in January: 3h and 36min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in January
Valley, WA

Average sunshine days in January: 11.1 days

The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is March (9.3 days).

Average UV index in January
Valley, WA

Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in January
Valley, WA

Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in January
Valley, WA

Average visibility in January: 3mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).