January weather forecast
Ashton, ID

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Weather in January

January, like December, is a freezing cold winter month in Ashton, Idaho, with an average temperature varying between 26.2°F (-3.2°C) and 10.8°F (-11.8°C).

Temperature

January's arrival brings an average high-temperature of a still subzero cold 26.2°F (-3.2°C), slightly deviating from December's 25°F (-3.9°C). January sees the temperature falling to a mean low of 10.8°F (-11.8°C).

Humidity

January and February, with an average relative humidity of 92%, are the most humid months.

Rainfall

January is the month with the most rainfall in Ashton. Rain falls for 4.5 days and accumulates 2.44" (62mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. January is the month with the most snowfall in Ashton. Snow falls for 20.9 days and accumulates 20" (508mm) of snow.

Daylight

The average length of the day in January in Ashton is 9h and 20min.
On the first day of January, sunrise is at 8:00 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:33 pm MST.

Sunshine

January has the least sunshine of the year in Ashton, Idaho, with an average of 4.2h of sunshine.

UV index

The months with the lowest UV index in Ashton, Idaho, are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is January in Ashton?

In Ashton, 26.2°F (-3.2°C) is the average high-temperature and 10.8°F (-11.8°C) is the average low-temperature during January.

What are the most humid months in Ashton?

January and February, with an average relative humidity of 92%, are most humid months.

What is the average humidity in January in Ashton?

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

What is the wettest month in Ashton?

January is the month with the most rainfall. Rain falls for 4.5 days and accumulates 2.44" (62mm) of precipitation.

How many days does it rain in January in Ashton?

In Ashton, during January, the rain falls for 4.5 days and regularly aggregates up to 2.44" (62mm) of precipitation.

What is the snowiest month in Ashton?

January is the month with the most snowfall in Ashton, Idaho. Snow falls for 20.9 days and accumulates 20" (508mm) of snow.

How many days does it snow in January in Ashton?

In Ashton, Idaho, in January, snow falls for 20.9 days, with typically accumulated 20" (508mm) of snow.

How many hours of daylight does Ashton have in January?

The average day length in January in Ashton is 9h and 20min.

When are sunrise and sunset in January in Ashton?

On the first day of January in Ashton, sunrise is at 8:00 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:33 pm MST.

What is the month with the least sunshine in Ashton?

The month with the least sunshine is January, with an average of 4.2h of sunshine.

How long on average sun shines in January in Ashton?

In January, the average sunshine duration is 4.2h.

When is the lowest UV index in Ashton?

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

What is the UV index intensity in January in Ashton?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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
Ashton, ID

Average temperature in January - Ashton, ID
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (25°F).

  • Average low temperature in January: 10.8°F

The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in January
Ashton, ID

Average pressure in January - Ashton, ID
  • Average pressure in January: 30.27"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Ashton, ID

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

The windiest month (with the highest average wind speed) is June (6.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

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Average humidity in January
Ashton, ID

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

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in January
Ashton, ID

Average rainfall in January - Ashton, ID
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is January (2.44").
The driest month (with the least rainfall) is July (0.59").

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Average rainfall days in January
Ashton, ID

Average rainfall days in January - Ashton, ID
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in January
Ashton, ID

Average snowfall in January - Ashton, ID
  • Average snowfall in January: 20"

The month with the highest snowfall is January (20").
The months with the least snowfall are July and August (0").

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Average snowfall days in January
Ashton, ID

Average snowfall days in January - Ashton, ID
  • Average snowfall days in January: 20.9 days

The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in January /
Average sunshine in January
Ashton, ID

Average daylight in January / Average sunshine in January - Ashton, ID
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in January
Ashton, ID

Average sunshine days in January - Ashton, ID
  • Average sunshine days in January: 10.8 days

The month with the most sunshine days is July (19.9 days).
The month with the least sunshine days is April (6.7 days).

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Average UV index in January
Ashton, ID

Average UV index in January - Ashton, 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
Ashton, ID

Average cloud cover in January - Ashton, ID
  • Average cloud cover in January: 58

The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in January
Ashton, ID

Average visibility in January - Ashton, ID
  • Average visibility in January: 3mi

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

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Ashton, Idaho, USA

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