January weather forecast
Hayden, ID

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Weather in January

January in Hayden, Idaho brings snowy conditions, icy temperatures, and limited daylight. It is the coldest month, with the mercury going down to 21.6°F (-5.8°C), and the area being blanketed by around 16.57" (421mm) of snowfall. The chill in the air is accompanied by a high relative humidity of 93%. The city gets caught in a wintry grip, triggering a slowdown in outdoor activities. The biting cold is mirrored in the limited hours of daylight, which averages around 8.9 hours for the month.

Temperature

January's arrival in Hayden brings an average high-temperature of a wintry 32.7°F (0.4°C), slightly deviating from December's 31.3°F (-0.4°C). Hayden records a mean low-temperature of 21.6°F (-5.8°C) in January.

Humidity

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

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

Daylight

In Hayden, Idaho, the average length of the day in January is 8h and 56min.
On the first day of January in Hayden, sunrise is at 7:35 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:45 pm PST.

Sunshine

In Hayden, the average sunshine in January is 3.5h.

UV index

In January, the average daily maximum UV index in Hayden is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

How cold is January in Hayden?

An average high-temperature, in January, in Hayden, 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 Hayden?

January is the most humid month in Hayden, with an average relative humidity of 93%.

What is the average humidity in January in Hayden?

The average relative humidity in January is 93%.

What is the wettest month in Hayden?

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.

How many days does it rain in January in Hayden?

In Hayden, in January, it is raining for 11.5 days, with typically 3.27" (83mm) of accumulated precipitation.

What is the snowiest month in Hayden?

January is the month with the most snowfall in Hayden. Snow falls for 16.4 days and accumulates 16.57" (421mm) of snow.

How much does it snow in Hayden in January?

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

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

In Hayden, the average day length in January is 8h and 56min.

What time are sunrise and sunset in January in Hayden?

In January, on the first day of the month, sunrise is at 7:35 am and sunset at 4:05 pm. On the last day of the month, in Hayden, Idaho, sunrise is at 7:15 am and sunset at 4:45 pm PST.

How many hours of sunshine does Hayden have in January?

In January, the average sunshine duration in Hayden is 3.5h.

What is the UV index reading in January in Hayden?

In January, the average daily maximum UV index in Hayden is 2. 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
Hayden, ID

Average temperature in January - Hayden, 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).

Average pressure in January
Hayden, ID

Average pressure in January - Hayden, 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).

Average wind speed in January
Hayden, ID

Average wind speed in January - Hayden, 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).

Average humidity in January
Hayden, ID

Average humidity in January - Hayden, 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%).

Average rainfall in January
Hayden, ID

Average rainfall in January - Hayden, 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").

Average rainfall days in January
Hayden, ID

Average rainfall days in January - Hayden, 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).

Average snowfall in January
Hayden, ID

Average snowfall in January - Hayden, 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").

Average snowfall days in January
Hayden, ID

Average snowfall days in January - Hayden, 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).

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

Average daylight in January / Average sunshine in January - Hayden, ID
  • Average daylight in January: 8h and 5min

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 3min

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).

Average sunshine days in January
Hayden, ID

Average sunshine days in January - Hayden, 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).

Average UV index in January
Hayden, ID

Average UV index in January - Hayden, 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).

Average cloud cover in January
Hayden, ID

Average cloud cover in January - Hayden, 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).

Average visibility in January
Hayden, ID

Average visibility in January - Hayden, 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).

Hayden, Idaho, USA

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