January weather forecastChelan, WA

A small beachside condo over the deep blue sea, deep blue sky, and the deep blue hills afar, in Chelan, Washington

January

Weather in January

The start of the year in Chelan, Washington reveals the harshest of winter's grip. In January, the weather lends itself to the lovers of cold, only reaching a maximum high temperature of 30.9°F (-0.6°C), with the month displaying a significant dip in the mercury dipping low to 19°F (-7.2°C). January sees the most number of snowfall days, 12 in total, making it perfect for winter sports enthusiasts who relish freshly fallen snow. January’s weather pattern stands apart from the rest of the year due to the high relative humidity of 90%, hinting at the chill factor being more biting in this month. Following January, weather in February shows a moderate increase in temperatures, inviting a brief respite from the freezing cold.

Temperature

December's transformation into January witnesses an average high-temperature of a still subzero cold 30.9°F (-0.6°C) in Chelan, Washington, noting a minor change from the preceding month. During the month of January, Chelan experiences a steady low-temperature average of 19°F (-7.2°C).

Humidity

January is the most humid month in Chelan, with an average relative humidity of 90%.

Rainfall

In Chelan, in January, during 8.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Chelan, Washington, during the entire year, the rain falls for 99.9 days and collects up to 10.47" (266mm) of precipitation.

Snowfall

Months with snowfall in Chelan are January through April, September through December. In Chelan, in January, during 12 snowfall days, 7.87" (200mm) of snow is typically accumulated. Throughout the year, in Chelan, there are 48.7 snowfall days, and 28.62" (727mm) of snow is accumulated.

Daylight

The average length of the day in January is 8h and 56min.
On the first day of the month, sunrise is at 7:49 am and sunset at 4:18 pm. On the last day of January, in Chelan, sunrise is at 7:28 am and sunset at 4:58 pm PST.

Sunshine

January has the least sunshine of the year, with an average of 4.1h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, an average UV index of 2 transforms into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

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

Frequently asked questions

In Chelan, 30.9°F (-0.6°C) is the average high-temperature and 19°F (-7.2°C) is the average low-temperature during January.

January is the most humid month in Chelan, Washington, with an average relative humidity of 90%.

In Chelan, the average relative humidity in January is 90%.

In Chelan, during January, the rain falls for 8.6 days and regularly aggregates up to 1.5" (38mm) of precipitation.

In January, in Chelan, Washington, it is snowing for 12 days. Throughout January, 7.87" (200mm) of snow is accumulated.

The average day length in January in Chelan is 8h and 56min.

On the first day of January, sunrise is at 7:49 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:58 pm PST.

With an average of 4.1h of sunshine, January has the least sunshine of the year in Chelan, Washington.

The average sunshine duration in January in Chelan, Washington, is 4.1h.

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Chelan.

In January, the average daily maximum UV index in Chelan is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Dec

January

Feb

Average high temperature

30.2°F

30.9°F

34.2°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

3.9mph

4.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.2

14.4

13.5

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Chelan, WA

Average high temperature in January: 30.9°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (30.2°F).

Average low temperature in January: 19°F

The month with the highest average low temperature is August (55.8°F).
The coldest months (with the lowest average low temperature) are January and December (19°F).

Average pressure in January
Chelan, WA

Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed in January
Chelan, WA

Average wind speed in January: 3.5mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

Average humidity in January
Chelan, WA

Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (43%).

Average rainfall in January
Chelan, WA

Average rainfall in January: 1.5"

The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in January
Chelan, WA

Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.8 days).

Average snowfall in January
Chelan, WA

Average snowfall in January: 7.87"

The month with the highest snowfall is December (9.06").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in January
Chelan, WA

Average snowfall days in January: 12 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Chelan, 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 30min).

Average sunshine in January: 4h and 6min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Chelan, WA

Average sunshine days in January: 14.4 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (13.2 days).

Average UV index in January
Chelan, WA

Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in January
Chelan, WA

Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in January
Chelan, WA

Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).