January weather forecast
Darby, ID

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Weather in January

January, the same as December, in Darby, Idaho, is a freezing cold winter month, with an average temperature varying between 25.2°F (-3.8°C) and 7.9°F (-13.4°C).

Temperature

The commencement of January brings an average high-temperature of a still freezing cold 25.2°F (-3.8°C), marking an inconsequential divergence from December. An average low-temperature of 7.9°F (-13.4°C) is anticipated throughout the nights during January.

Humidity

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

Rainfall

In January, the rain falls for 3 days. Throughout January, 3.66" (93mm) of precipitation is accumulated. In Darby, during the entire year, the rain falls for 96.6 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

Months with snowfall in Darby are January through June, August through December. In January, in Darby, it is snowing for 21.8 days. Throughout January, 30.2" (767mm) of snow is accumulated. Throughout the year, there are 160.8 snowfall days, and 200.16" (5084mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 23min.
On the first day of January, sunrise is at 7:57 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:33 pm MST.

Sunshine

In January, the average sunshine is 3.5h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 in January interprets into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

How cold is it in Darby in January?

In Darby, 25.2°F (-3.8°C) is the average high-temperature and 7.9°F (-13.4°C) is the average low-temperature during January.

What is the average humidity in January in Darby?

In January, the average relative humidity in Darby, Idaho, is 93%.

How much does it rain in Darby in January?

In Darby, during January, the rain falls for 3 days and regularly aggregates up to 3.66" (93mm) of precipitation.

How much does it snow in Darby in January?

In Darby, in January, during 21.8 snowfall days, 30.2" (767mm) of snow is typically accumulated.

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

In Darby, the average day length in January is 9h and 23min.

When are sunrise and sunset in January in Darby?

On the first day of January in Darby, Idaho, sunrise is at 7:57 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:33 pm MST.

How long on average sun shines in January in Darby?

The average sunshine duration in January in Darby is 3.5h.

When is the lowest UV index in Darby?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January in Darby?

In Darby, 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 unprotected exposure to 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
Darby, ID

Average temperature in January - Darby, ID
  • Average high temperature in January: 25.2°F

The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is December (23.2°F).

  • Average low temperature in January: 7.9°F

The month with the highest average low temperature is July (46.9°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).

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Average pressure in January
Darby, ID

Average pressure in January - Darby, 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
Darby, ID

Average wind speed in January - Darby, ID
  • Average wind speed in January: 4.8mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).

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Average humidity in January
Darby, ID

Average humidity in January - Darby, ID
  • Average humidity in January: 93%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in January
Darby, ID

Average rainfall in January - Darby, ID
  • Average rainfall in January: 3.66"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is July (0.91").

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Average rainfall days in January
Darby, ID

Average rainfall days in January - Darby, ID
  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (3 days).

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Average snowfall in January
Darby, ID

Average snowfall in January - Darby, ID
  • Average snowfall in January: 30.2"

The month with the highest snowfall is February (34.33").
The month with the least snowfall is July (0").

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Average snowfall days in January
Darby, ID

Average snowfall days in January - Darby, ID
  • Average snowfall days in January: 21.8 days

The month with the highest number of snowfall days is March (23.6 days).
The month with the least snowfall days is July (0.1 days).

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

Average daylight in January / Average sunshine in January - Darby, 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: 9h and 0min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

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Average sunshine days in January
Darby, ID

Average sunshine days in January - Darby, ID
  • Average sunshine days in January: 9.8 days

The month with the most sunshine days is July (20.3 days).
The month with the least sunshine days is April (6.2 days).

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Average UV index in January
Darby, ID

Average UV index in January - Darby, ID
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in January
Darby, ID

Average cloud cover in January - Darby, ID
  • Average cloud cover in January: 66

The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in January
Darby, ID

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

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

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Darby, Idaho, USA

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