January weather forecast
Keller, WA

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Weather in January

January, like December, is a freezing cold winter month in Keller, Washington, with an average temperature varying between 30.6°F (-0.8°C) and 18.5°F (-7.5°C).

Temperature

The unfolding of January shows an average high-temperature of a still subzero cold 30.6°F (-0.8°C), indicating a slight variance from December's 29.7°F (-1.3°C). In the month of January, Keller witnesses a consistent average low-temperature of 18.5°F (-7.5°C).

Humidity

January is the most humid month, with an average relative humidity of 94%.

Rainfall

In Keller, during January, the rain falls for 6.3 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, there are 86.6 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, September, November and December. January is the month with the most snowfall. Snow falls for 5.3 days and accumulates 1.42" (36mm) of snow.

Daylight

In Keller, Washington, the average length of the day in January is 8h and 54min.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:11 pm. On the last day of January, sunrise is at 7:23 am and sunset at 4:52 pm PST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year in Keller.

UV index

January, February, November and December, 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 minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 1 transforms into these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Keller in January?

In Keller, 30.6°F (-0.8°C) is the average high-temperature and 18.5°F (-7.5°C) is the average low-temperature during January.

What is the most humid month in Keller?

January is the most humid month, with an average relative humidity of 94%.

What is the average humidity in January in Keller?

The average relative humidity in January is 94%.

How much does it rain in Keller in January?

In January, in Keller, Washington, the rain falls for 6.3 days. Throughout January, 0.51" (13mm) of precipitation is accumulated.

What is the snowiest month in Keller?

The month with the most snowfall in Keller, Washington, is January, when snow falls for 5.3 days and typically aggregates up to 1.42" (36mm) of snow.

How much does it snow in Keller in January?

In Keller, Washington, in January, snow falls for 5.3 days, with typically accumulated 1.42" (36mm) of snow.

What is the average length of the day in January in Keller?

In Keller, Washington, the average day length in January is 8h and 54min.

When are sunrise and sunset in January in Keller?

On the first day of January in Keller, Washington, sunrise is at 7:44 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:52 pm PST.

What is the month with the least sunshine in Keller?

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

How many hours of sunshine does Keller have in January?

In January, the average sunshine duration in Keller is 3.7h.

What is the month with the lowest UV index in Keller?

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

How high is the UV index in January in Keller?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
29.7°F -1.3°C
30.6°F -0.8°C
33.4°F 0.8°C
Average low temperature
18.3°F -7.6°C
18.5°F -7.5°C
18.3°F -7.6°C
Average pressure
30.17" 766mmHg
30.19" 767mmHg
30.11" 765mmHg
Average wind speed
3.4mph 5.5km/h
3.4mph 5.5km/h
3.5mph 5.6km/h
Average max. wind speed
3.7mph 6km/h
3.7mph 6km/h
3.9mph 6.3km/h
Average wind speed gusts
6.1mph 9.8km/h
6mph 9.7km/h
6.2mph 10km/h
Average humidity
90%
94%
91%
Average rainfall
0.43" 11mm
0.51" 13mm
0.35" 9mm
Average rainfall days
5.2
6.3
5
Average snowfall
1.3" 33mm
1.42" 36mm
1.22" 31mm
Average snowfall days
7.5
5.3
5.3
Average daylight
8h 2min
8h 5min
10h 2min
Average sunshine
4h 0min
3h 4min
4h 0min
Average sunshine days
21.5
22.2
19.3
Average UV index
1
1
1
Average cloud cover
57%
61%
56%
Average visibility
4mi 6.4km
2mi 3.2km
3mi 4.8km

Average temperature in January
Keller, WA

Average temperature in January - Keller, WA
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is August (82.8°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in January: 18.5°F

The month with the highest average low temperature is August (52.3°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).

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Average pressure in January
Keller, WA

Average pressure in January - Keller, 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).

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Average wind speed in January
Keller, WA

Average wind speed in January - Keller, WA
  • Average wind speed in January: 3.4mph

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are January and December (3.4mph).

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Average humidity in January
Keller, WA

Average humidity in January - Keller, 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%).

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Average rainfall in January
Keller, WA

Average rainfall in January - Keller, WA
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is August (0.31").

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Average rainfall days in January
Keller, WA

Average rainfall days in January - Keller, WA
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is May (11.3 days).
The months with the least rainy days are February and September (5 days).

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Average snowfall in January
Keller, WA

Average snowfall in January - Keller, WA
  • Average snowfall in January: 1.42"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in January
Keller, WA

Average snowfall days in January - Keller, WA
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Keller, WA
  • Average daylight in January: 8h and 5min

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 4min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Keller, WA

Average sunshine days in January - Keller, WA
  • Average sunshine days in January: 22.2 days

The month with the most sunshine days is September (23.8 days).
The month with the least sunshine days is June (17.3 days).

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Average UV index in January
Keller, WA

Average UV index in January - Keller, 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).

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Average cloud cover in January
Keller, WA

Average cloud cover in January - Keller, WA
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in January
Keller, WA

Average visibility in January - Keller, WA
  • Average visibility in January: 2mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (2mi).

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Keller, Washington, USA

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