January weather forecast
Post Falls, ID

Corbin Park on the banks of the Spokane River flowing downstream in Post Falls, Idaho, USA
Corbin Park on the banks of the Spokane River flowing downstream in Post Falls, Idaho, USA

Weather in January

January is a cold winter month in Post Falls, Idaho, with an average temperature fluctuating between 32.7°F (0.4°C) and 21.6°F (-5.8°C).

Temperature

In Post Falls, the average high-temperature in January is almost the same as in December - a cold 32.7°F (0.4°C). In Post Falls, the average low-temperature is 21.6°F (-5.8°C).

Humidity

The most humid month is January, with an average relative humidity of 93%.

Rainfall

The month with the most rainfall is January, when the rain falls for 11.5 days and typically aggregates up to 3.27" (83mm) of precipitation.

Snowfall

Months with snowfall in Post Falls are January through May, September through December. January is the month with the most snowfall in Post Falls. Snow falls for 16.4 days and accumulates 16.57" (421mm) of snow.

Daylight

The average length of the day in January in Post Falls, Idaho, is 8h and 56min.
On the first day of January in Post Falls, sunrise is at 7:36 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:46 pm PST.

Sunshine

In Post Falls, Idaho, the average sunshine in January is 3.5h.

UV index

In Post Falls, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in January in Post Falls?

In Post Falls, in January, the average high-temperature is 32.7°F (0.4°C), and the average low-temperature is 21.6°F (-5.8°C).

What is the most humid month in Post Falls?

With an average relative humidity of 93%, January is the most humid month in Post Falls.

What is the average humidity in January in Post Falls?

In January, the average relative humidity in Post Falls is 93%.

What is the rainiest month in Post Falls?

The month with the most rainfall in Post Falls, Idaho, is January, when the rain falls for 11.5 days and typically aggregates up to 3.27" (83mm) of precipitation.

How many days does it rain in January in Post Falls?

In Post Falls, Idaho, in January, during 11.5 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

When does it snow the most in Post Falls?

The month with the most snowfall is January, when snow falls for 16.4 days and typically aggregates up to 16.57" (421mm) of snow.

How much does it snow in Post Falls in January?

In Post Falls, Idaho, during January, snow falls for 16.4 days and regularly aggregates up to 16.57" (421mm) of snow.

How many hours of daylight does Post Falls have in January?

The average day length in January in Post Falls, Idaho, is 8h and 56min.

What time are sunrise and sunset in January in Post Falls?

In January, on the first day of the month, sunrise is at 7:36 am and sunset at 4:06 pm. On the last day of the month, in Post Falls, sunrise is at 7:15 am and sunset at 4:46 pm PST.

How many hours of sunshine does Post Falls have in January?

In Post Falls, Idaho, the average sunshine duration in January is 3.5h.

What is the UV index reading in January in Post Falls?

In Post Falls, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Post Falls, ID

Average temperature in January - Post Falls, ID
  • Average high temperature in January: 32.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in January
Post Falls, ID

Average pressure in January - Post Falls, ID
  • 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 August (29.91"Hg).

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Average wind speed in January
Post Falls, ID

Average wind speed in January - Post Falls, ID
  • Average wind speed in January: 4mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).

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Average humidity in January
Post Falls, ID

Average humidity in January - Post Falls, ID
  • Average humidity in January: 93%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in January
Post Falls, ID

Average rainfall in January - Post Falls, ID
  • Average rainfall in January: 3.27"

The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").

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Average rainfall days in January
Post Falls, ID

Average rainfall days in January - Post Falls, ID
  • Average rainfall days in January: 11.5 days

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in January
Post Falls, ID

Average snowfall in January - Post Falls, ID
  • Average snowfall in January: 16.57"

The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Post Falls, ID

Average snowfall days in January - Post Falls, ID
  • Average snowfall days in January: 16.4 days

The month with the highest number of snowfall days is December (16.9 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
Post Falls, ID

Average daylight in January / Average sunshine in January - Post Falls, ID
  • Average daylight in January: 8h and 56min

The month with the longest days is June (Average daylight: 15h and 56min).
The month with the shortest days is December (Average daylight: 8h and 29min).

  • Average sunshine in January: 3h and 30min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

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Average sunshine days in January
Post Falls, ID

Average sunshine days in January - Post Falls, ID
  • Average sunshine days in January: 11 days

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in January
Post Falls, ID

Average UV index in January - Post Falls, ID
  • 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 February, November and December (UV index 1).

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Average cloud cover in January
Post Falls, ID

Average cloud cover in January - Post Falls, ID
  • Average cloud cover in January: 65

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in January
Post Falls, ID

Average visibility in January - Post Falls, ID
  • Average visibility in January: 3mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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