January weather forecast
South Colby, WA

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Weather in January

January, like December, is another chilly winter month in South Colby, Washington, with an average temperature fluctuating between 36.1°F (2.3°C) and 45°F (7.2°C).

Temperature

As South Colby welcomes January, the average high-temperature is noted at a still chilly 45°F (7.2°C), closely aligning with the preceding month. Recording a slight decline in temperature during the nights, South Colby's January temperatures average at a cold 36.1°F (2.3°C).

Humidity

The average relative humidity in January is 86%.

Rainfall

The months with the most rainfall are January and December, with an average 2.05" (52mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In South Colby, in January, during 1.7 snowfall days, 0.63" (16mm) of snow is typically accumulated. In South Colby, during the entire year, snow falls for 7 days and aggregates up to 2.36" (60mm) of snow.

Daylight

In South Colby, the average length of the day in January is 8h and 58min.
On the first day of the month, sunrise is at 7:57 am and sunset at 4:29 pm. On the last day of January, sunrise is at 7:37 am and sunset at 5:09 pm PST.

Sunshine

In South Colby, the average sunshine in January is 4.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in January?

The average high-temperature, in January, in South Colby, is 45°F (7.2°C), while the average low-temperature is 36.1°F (2.3°C).

What is the average humidity in January?

In January, the average relative humidity is 86%.

What is the wettest month?

The wettest months are January and December, with an average 2.05" (52mm) of rainfall.

How many days does it rain in January?

In South Colby, in January, it is raining for 13.4 days, with typically 2.05" (52mm) of accumulated precipitation.

How many days does it snow in January?

In South Colby, in January, during 1.7 snowfall days, 0.63" (16mm) of snow is typically accumulated.

How many hours of daylight does South Colby have in January?

In January, the average day length is 8h and 58min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:57 am and sunset at 4:29 pm. On the last day of the month, in South Colby, sunrise is at 7:37 am and sunset at 5:09 pm PST.

How long on average sun shines in January?

The average sunshine duration in January is 4.2h.

What are the months with the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
South Colby, WA

Average temperature in January - South Colby, WA
  • Average high temperature in January: 45°F

The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).

  • Average low temperature in January: 36.1°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).

Average pressure in January
South Colby, WA

Average pressure in January - South Colby, WA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in January
South Colby, WA

Average wind speed in January - South Colby, WA
  • Average wind speed in January: 5.1mph

The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

Average humidity in January
South Colby, WA

Average humidity in January - South Colby, WA
  • Average humidity in January: 86%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).

Average rainfall in January
South Colby, WA

Average rainfall in January - South Colby, WA
  • Average rainfall in January: 2.05"

The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in January
South Colby, WA

Average rainfall days in January - South Colby, WA
  • Average rainfall days in January: 13.4 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).

Average snowfall in January
South Colby, WA

Average snowfall in January - South Colby, WA
  • Average snowfall in January: 0.63"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
South Colby, WA

Average snowfall days in January - South Colby, WA
  • Average snowfall days in January: 1.7 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
South Colby, WA

Average daylight in January / Average sunshine in January - South Colby, WA
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

Average sunshine days in January
South Colby, WA

Average sunshine days in January - South Colby, WA
  • Average sunshine days in January: 14.9 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).

Average UV index in January
South Colby, WA

Average UV index in January - South Colby, 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, November and December (UV index 2).

Average cloud cover in January
South Colby, WA

Average cloud cover in January - South Colby, WA
  • Average cloud cover in January: 57

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in January
South Colby, WA

Average visibility in January - South Colby, WA
  • Average visibility in January: 5mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).

South Colby, Washington, USA

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