January weather forecast
Smiths Ferry, ID

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Weather in January

January, like December, is another subzero cold winter month in Smiths Ferry, Idaho, with an average temperature varying between 14.7°F (-9.6°C) and 29.5°F (-1.4°C).

Temperature

Smiths Ferry records an average high-temperature of a still subzero cold 29.5°F (-1.4°C) in January, maintaining a close correlation with December's 28°F (-2.2°C). Throughout the month of January, the nighttime temperature dips to an average of 14.7°F (-9.6°C).

Humidity

January and February, with an average relative humidity of 91%, are the most humid months.

Rainfall

In Smiths Ferry, in January, during 4.1 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 98.1 rainfall days, and 22.64" (575mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. The month with the most snowfall is January, when snow falls for 16.2 days and typically aggregates up to 23.07" (586mm) of snow.

Daylight

The average length of the day in January is 9h and 19min.
On the first day of the month, sunrise is at 8:20 am and sunset at 5:15 pm. On the last day of January, sunrise is at 8:03 am and sunset at 5:51 pm MST.

Sunshine

With an average of 4.2h of sunshine, January has the least sunshine of the year.

UV index

January, February and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 1 in January translates into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

How cold is January?

The high-temperature, in January, in Smiths Ferry, records 29.5°F (-1.4°C), while the low-temperature is 14.7°F (-9.6°C).

What is the most humid month?

The months with the highest humidity are January and February, with an average relative humidity of 91%.

What is the average humidity in January?

The average relative humidity in January is 91%.

How many days does it rain in January?

In Smiths Ferry, Idaho, in January, it is raining for 4.1 days, with typically 2.83" (72mm) of accumulated precipitation.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 16.2 days and typically aggregates up to 23.07" (586mm) of snow.

How much does it snow in Smiths Ferry in January?

In January, it is snowing for 16.2 days. Throughout January, 23.07" (586mm) of snow is accumulated.

What is the average length of the day in January?

In Smiths Ferry, the average day length in January is 9h and 19min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 8:20 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:51 pm MST.

What is the month with the least sunshine?

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

How many hours of sunshine does Smiths Ferry have in January?

In January, the average sunshine duration is 4.2h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index estimate 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
Smiths Ferry, ID

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

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (28°F).

  • Average low temperature in January: 14.7°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

Average pressure in January
Smiths Ferry, ID

Average pressure in January - Smiths Ferry, ID
  • Average pressure in January: 30.24"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Smiths Ferry, ID

Average wind speed in January - Smiths Ferry, ID
  • Average wind speed in January: 4.2mph

The windiest months (with the highest average wind speed) are March and April (5.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in January
Smiths Ferry, ID

Average humidity in January - Smiths Ferry, ID
  • Average humidity in January: 91%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (42%).

Average rainfall in January
Smiths Ferry, ID

Average rainfall in January - Smiths Ferry, ID
  • Average rainfall in January: 2.83"

The wettest month (with the highest rainfall) is March (3.31").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in January
Smiths Ferry, ID

Average rainfall days in January - Smiths Ferry, ID
  • Average rainfall days in January: 4.1 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in January
Smiths Ferry, ID

Average snowfall in January - Smiths Ferry, ID
  • Average snowfall in January: 23.07"

The month with the highest snowfall is January (23.07").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Smiths Ferry, ID

Average snowfall days in January - Smiths Ferry, ID
  • Average snowfall days in January: 16.2 days

The month with the highest number of snowfall days is March (17 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in January /
Average sunshine in January
Smiths Ferry, ID

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

The month with the longest days is June (Average daylight: 15h and 30min).
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: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Smiths Ferry, ID

Average sunshine days in January - Smiths Ferry, ID
  • Average sunshine days in January: 14.9 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is March (10.1 days).

Average UV index in January
Smiths Ferry, ID

Average UV index in January - Smiths Ferry, 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 and November (UV index 1).

Average cloud cover in January
Smiths Ferry, ID

Average cloud cover in January - Smiths Ferry, ID
  • Average cloud cover in January: 54

The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 10).

Average visibility in January
Smiths Ferry, ID

Average visibility in January - Smiths Ferry, 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).

Smiths Ferry, Idaho, USA

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