January weather forecast
Harrison, ID

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Weather in January

January, like December, in Harrison, Idaho, is a wintry winter month, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 22.5°F (-5.3°C).

Temperature

January is marked by an average high-temperature of a still cold 33.6°F (0.9°C), almost identical to the preceding month. During the nights in January, Harrison experiences a consistent average temperature of 22.5°F (-5.3°C).

Humidity

With an average relative humidity of 92%, January is the most humid month.

Rainfall

The month with the most rainfall in Harrison is January, when the rain falls for 12.3 days and typically aggregates up to 3.39" (86mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 15.6 days and accumulates 15.2" (386mm) of snow.

Daylight

The average length of the day in January in Harrison is 8h and 58min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:06 pm. On the last day of January, sunrise is at 7:14 am and sunset at 4:46 pm PST.

Sunshine

In Harrison, the average sunshine in January is 3.6h.

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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 1 during January, leads to the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

How cold is it in Harrison in January?

The average high-temperature and low-temperature in Harrison during January are 33.6°F (0.9°C) and 22.5°F (-5.3°C) respectively.

What is the most humid month in Harrison?

The most humid month in Harrison, Idaho, is January, with an average relative humidity of 92%.

What is the average humidity in January in Harrison?

In Harrison, Idaho, the average relative humidity in January is 92%.

What is the rainiest month in Harrison?

The month with the most rainfall is January, when the rain falls for 12.3 days and typically aggregates up to 3.39" (86mm) of precipitation.

How many days does it rain in January in Harrison?

In January, in Harrison, Idaho, the rain falls for 12.3 days. Throughout January, 3.39" (86mm) of precipitation is accumulated.

What is the snowiest month in Harrison?

January is the month with the most snowfall in Harrison. Snow falls for 15.6 days and accumulates 15.2" (386mm) of snow.

How many days does it snow in January in Harrison?

In January, in Harrison, Idaho, it is snowing for 15.6 days. Throughout January, 15.2" (386mm) of snow is accumulated.

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

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

What time are sunrise and sunset in January in Harrison?

In January, on the first day of the month, sunrise is at 7:34 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:46 pm PST.

How many hours of sunshine does Harrison have in January?

In January, the average sunshine duration in Harrison, Idaho, is 3.6h.

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

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

What is the UV index reading in January in Harrison?

The average daily maximum UV index in January in Harrison, Idaho, is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Harrison, ID

Average temperature in January - Harrison, ID
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).

  • Average low temperature in January: 22.5°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

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Average pressure in January
Harrison, ID

Average pressure in January - Harrison, 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
Harrison, ID

Average wind speed in January - Harrison, ID
  • Average wind speed in January: 4.4mph

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).

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Average humidity in January
Harrison, ID

Average humidity in January - Harrison, ID
  • Average humidity in January: 92%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in January
Harrison, ID

Average rainfall in January - Harrison, ID
  • Average rainfall in January: 3.39"

The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in January
Harrison, ID

Average rainfall days in January - Harrison, ID
  • Average rainfall days in January: 12.3 days

The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in January
Harrison, ID

Average snowfall in January - Harrison, ID
  • Average snowfall in January: 15.2"

The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Harrison, ID

Average snowfall days in January - Harrison, ID
  • Average snowfall days in January: 15.6 days

The month with the highest number of snowfall days is December (16.6 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
Harrison, ID

Average daylight in January / Average sunshine in January - Harrison, ID
  • 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: 3h and 4min

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
Harrison, ID

Average sunshine days in January - Harrison, ID
  • Average sunshine days in January: 10.6 days

The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index in January
Harrison, ID

Average UV index in January - Harrison, ID
  • 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
Harrison, ID

Average cloud cover in January - Harrison, ID
  • Average cloud cover in January: 63

The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in January
Harrison, ID

Average visibility in January - Harrison, ID
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Harrison, Idaho, USA

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