January weather forecast
Ione, WA

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Weather in January

January, like December, is another subzero cold winter month in Ione, Washington, with an average temperature varying between 15.8°F (-9°C) and 28.4°F (-2°C).

Temperature

Ione, Washington, commences January with an average high-temperature of a still freezing cold 28.4°F (-2°C), maintaining a close resemblance to the previous month. Throughout the month of January, Ione witnesses an average low-temperature of 15.8°F (-9°C).

Humidity

January is the most humid month in Ione, with an average relative humidity of 95%.

Rainfall

In January, the rain falls for 8.9 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 147.3 rainfall days, and 20.12" (511mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ione are January through May, September through December. The month with the most snowfall is January, when snow falls for 18.8 days and typically aggregates up to 11.77" (299mm) of snow.

Daylight

The average length of the day in January is 8h and 49min.
On the first day of January in Ione, sunrise is at 7:42 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:45 pm PST.

Sunshine

With an average of 3.1h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold is January in Ione?

Ione in January has an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 15.8°F (-9°C).

What is the most humid month in Ione?

The most humid month is January, with an average relative humidity of 95%.

What is the average humidity in January in Ione?

In Ione, the average relative humidity in January is 95%.

How many days does it rain in January in Ione?

In Ione, in January, during 8.9 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When does it snow the most in Ione?

January is the month with the most snowfall. Snow falls for 18.8 days and accumulates 11.77" (299mm) of snow.

How many days does it snow in January in Ione?

In Ione, during January, snow falls for 18.8 days and regularly aggregates up to 11.77" (299mm) of snow.

How many hours of daylight does Ione have in January?

The average day length in January in Ione is 8h and 49min.

When are sunrise and sunset in January in Ione?

In January, on the first day of the month, sunrise is at 7:42 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:45 pm PST.

What is the month with the least sunshine in Ione?

January has the least sunshine of the year in Ione, Washington, with an average of 3.1h of sunshine.

How long on average sun shines in January in Ione?

The average sunshine duration in January is 3.1h.

What are the months with the lowest UV index in Ione?

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

What is the UV index reading in January in Ione?

In January, the average daily maximum UV index in Ione, Washington, is 1. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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
Ione, WA

Average temperature in January - Ione, WA
  • Average high temperature in January: 28.4°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (26.6°F).

  • Average low temperature in January: 15.8°F

The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in January
Ione, WA

Average pressure in January - Ione, WA
  • Average pressure in January: 30.19"Hg

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

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Average wind speed in January
Ione, WA

Average wind speed in January - Ione, WA
  • Average wind speed in January: 3.2mph

The windiest months (with the highest average wind speed) are April, May and June (3.9mph).
The calmest months (with the lowest average wind speed) are January and December (3.2mph).

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Average humidity in January
Ione, WA

Average humidity in January - Ione, WA
  • Average humidity in January: 95%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in January
Ione, WA

Average rainfall in January - Ione, WA
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is August (0.59").

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Average rainfall days in January
Ione, WA

Average rainfall days in January - Ione, WA
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is April (18.5 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in January
Ione, WA

Average snowfall in January - Ione, WA
  • Average snowfall in January: 11.77"

The month with the highest snowfall is January (11.77").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Ione, WA

Average snowfall days in January - Ione, WA
  • Average snowfall days in January: 18.8 days

The month with the highest number of snowfall days is December (20.7 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

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 18min).

  • Average sunshine in January: 3h and 1min

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 6min).

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Average sunshine days in January
Ione, WA

Average sunshine days in January - Ione, WA
  • Average sunshine days in January: 10 days

The month with the most sunshine days is August (20.2 days).
The month with the least sunshine days is March (7.6 days).

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Average UV index in January
Ione, WA

Average UV index in January - Ione, 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
Ione, WA

Average cloud cover in January - Ione, WA
  • Average cloud cover in January: 68

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in January
Ione, WA

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

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

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Ione, Washington, USA

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