January weather forecast
Downey, ID

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Weather in January

January, the same as December, in Downey, Idaho, is another subzero cold winter month, with an average temperature fluctuating between 29.5°F (-1.4°C) and 15.3°F (-9.3°C).

Temperature

Downey sees the arrival of January with an average high-temperature of a still freezing cold 29.5°F (-1.4°C), indicating a subtle variation from December. An average nighttime temperature of 15.3°F (-9.3°C) is noted in Downey, Idaho, during the month of January.

Humidity

With an average relative humidity of 89%, January is the most humid month in Downey.

Rainfall

In Downey, during January, the rain falls for 6.6 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Downey, during the entire year, the rain falls for 118.3 days and collects up to 16.42" (417mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. January is the month with the most snowfall in Downey. Snow falls for 15.8 days and accumulates 13.78" (350mm) of snow.

Daylight

In Downey, the average length of the day in January is 9h and 30min.
On the first day of the month, sunrise is at 7:57 am and sunset at 5:06 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:40 pm MST.

Sunshine

With an average of 4.7h of sunshine, January has the least sunshine of the year in Downey.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index in Downey. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold is January in Downey?

In Downey, 29.5°F (-1.4°C) is the average high-temperature and 15.3°F (-9.3°C) is the average low-temperature during January.

What is the most humid month in Downey?

The most humid month in Downey, Idaho, is January, with an average relative humidity of 89%.

What is the average humidity in January in Downey?

In Downey, the average relative humidity in January is 89%.

How many days does it rain in January in Downey?

In Downey, Idaho, during January, the rain falls for 6.6 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When does it snow the most in Downey?

The month with the most snowfall is January, when snow falls for 15.8 days and typically aggregates up to 13.78" (350mm) of snow.

How many days does it snow in January in Downey?

In Downey, in January, during 15.8 snowfall days, 13.78" (350mm) of snow is typically accumulated.

How many hours of daylight does Downey have in January?

In January, the average day length in Downey, Idaho, is 9h and 30min.

What time are sunrise and sunset in January in Downey?

On the first day of January, sunrise is at 7:57 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:40 pm MST.

What is the month with the least sunshine in Downey?

January has the least sunshine of the year in Downey, with an average of 4.7h of sunshine.

How long on average sun shines in January in Downey?

In Downey, Idaho, the average sunshine duration in January is 4.7h.

What is the month with the lowest UV index in Downey?

The month with the lowest UV index in Downey, Idaho, is January, with an average maximum UV index of 1.

What is the UV index reading in January in Downey?

The average daily maximum UV index in January in Downey is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Downey, ID

Average temperature in January - Downey, ID
  • Average high temperature in January: 29.5°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).

  • Average low temperature in January: 15.3°F

The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure in January
Downey, ID

Average pressure in January - Downey, ID
  • Average pressure in January: 30.3"Hg

The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in January
Downey, ID

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

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

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Average humidity in January
Downey, ID

Average humidity in January - Downey, ID
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in January
Downey, ID

Average rainfall in January - Downey, ID
  • Average rainfall in January: 1.77"

The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days in January
Downey, ID

Average rainfall days in January - Downey, ID
  • Average rainfall days in January: 6.6 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in January
Downey, ID

Average snowfall in January - Downey, ID
  • Average snowfall in January: 13.78"

The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Downey, ID

Average snowfall days in January - Downey, ID
  • Average snowfall days in January: 15.8 days

The month with the highest number of snowfall days is January (15.8 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
Downey, ID

Average daylight in January / Average sunshine in January - Downey, ID
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in January
Downey, ID

Average sunshine days in January - Downey, ID
  • Average sunshine days in January: 14.7 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).

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Average UV index in January
Downey, ID

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in January
Downey, ID

Average cloud cover in January - Downey, ID
  • Average cloud cover in January: 50

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in January
Downey, ID

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

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

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Downey, Idaho, USA

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