January weather forecastMarblemount, WA

January

Weather in January

January is an icy winter month in Marblemount, Washington, with temperature in the range of an average high of 32.9°F (0.5°C) and an average low of 21.9°F (-5.6°C).

Temperature

With the advent of January, Marblemount's high-temperatures adjust to a wintry 32.9°F (0.5°C), closely aligning with the preceding month. January's average low-temperature reading settles at a freezing cold 21.9°F (-5.6°C).

Humidity

January through March, with an average relative humidity of 91%, are the most humid months.

Rainfall

The month with the most rainfall in Marblemount is January, when the rain falls for 4.6 days and typically aggregates up to 9.25" (235mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Marblemount. The month with the most snowfall is January, when snow falls for 19.3 days and typically aggregates up to 71.57" (1818mm) of snow.

Daylight

The average length of the day in January is 8h and 51min.
On the first day of the month, sunrise is at 7:57 am and sunset at 4:20 pm. On the last day of January, sunrise is at 7:36 am and sunset at 5:02 pm PST.

Sunshine

January has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

January, February, October and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

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

Frequently asked questions

In Marblemount, 32.9°F (0.5°C) is the average high-temperature and 21.9°F (-5.6°C) is the average low-temperature during January.

January through March, with an average relative humidity of 91%, are most humid months in Marblemount, Washington.

In Marblemount, the average relative humidity in January is 91%.

The month with the most rainfall is January, when the rain falls for 4.6 days and typically aggregates up to 9.25" (235mm) of precipitation.

In Marblemount, during January, the rain falls for 4.6 days and regularly aggregates up to 9.25" (235mm) of precipitation.

The month with the most snowfall in Marblemount is January, when snow falls for 19.3 days and typically aggregates up to 71.57" (1818mm) of snow.

In January, in Marblemount, Washington, it is snowing for 19.3 days. Throughout January, 71.57" (1818mm) of snow is accumulated.

In January, the average day length in Marblemount, Washington, is 8h and 51min.

On the first day of January in Marblemount, sunrise is at 7:57 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:02 pm PST.

January has the least sunshine of the year in Marblemount, Washington, with an average of 3.7h of sunshine.

In January, the average sunshine duration is 3.7h.

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

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk from 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

30.7°F

32.9°F

32.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.6mph

5mph

4.7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.5

11.2

9.8

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Marblemount, WA

Average high temperature in January: 32.9°F

The warmest month (with the highest average high temperature) is August (71.2°F).
The month with the lowest average high temperature is December (30.7°F).

Average low temperature in January: 21.9°F

The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).

Average pressure in January
Marblemount, WA

Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in January
Marblemount, WA

Average wind speed in January: 4.7mph

The windiest month (with the highest average wind speed) is January (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in January
Marblemount, WA

Average humidity in January: 91%

The months with the highest relative humidity are January, February and March (91%).
The months with the lowest relative humidity are July and August (71%).

Average rainfall in January
Marblemount, WA

Average rainfall in January: 9.25"

The wettest month (with the highest rainfall) is January (9.25").
The driest month (with the least rainfall) is August (0.87").

Average rainfall days in January
Marblemount, WA

Average rainfall days in January: 4.6 days

The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in January
Marblemount, WA

Average snowfall in January: 71.57"

The month with the highest snowfall is January (71.57").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Marblemount, WA

Average snowfall days in January: 19.3 days

The month with the highest number of snowfall days is March (22.8 days).
The month with the least snowfall days is August (0 days).

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

Average daylight in January: 8h and 48min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in January: 3h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Marblemount, WA

Average sunshine days in January: 11.2 days

The month with the most sunshine days is August (18.1 days).
The month with the least sunshine days is April (6.5 days).

Average UV index in January
Marblemount, WA

Average UV index in January: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October and November (UV index 1).