January weather forecast
Riggins, ID

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The scenic Snake River between large mountains, with pitched tents and visible footpaths in the mountains near Riggins, Idaho
The scenic Snake River between large mountains, with pitched tents and visible footpaths in the mountains near Riggins, Idaho

Weather in January

The January weather in Riggins, Idaho, USA exhibits winter conditions with substantial snowfall. This month sees the temperature plunging, creating a predominantly cool ambiance. Compared to December, the temperature is slightly colder in January. On the contrary, February experiences a slight increase in the average low and high temperatures. Worth noting, January reports a staggering snowfall of 33.78" (858mm) - a defining feature of Riggins' weather.

Temperature

January's weather in Riggins displays an average high-temperature of a still freezing cold 27.1°F (-2.7°C), slightly varied from December's 25.3°F (-3.7°C). Riggins's January nights cool down to an average low-temperature of 12°F (-11.1°C).

Humidity

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

Rainfall

In Riggins, during January, the rain falls for 1.8 days and regularly aggregates up to 4.06" (103mm) of precipitation. In Riggins, during the entire year, the rain falls for 81 days and collects up to 32.68" (830mm) of precipitation.

Snowfall

Months with snowfall are January through December. In Riggins, during January, snow falls for 20.6 days and regularly aggregates up to 33.78" (858mm) of snow. In Riggins, during the entire year, snow falls for 160 days and aggregates up to 210.63" (5350mm) of snow.

Daylight

In January, the average length of the day in Riggins is 9h and 12min.
On the first day of January, sunrise is at 7:24 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:50 pm PST.

Sunshine

The month with the least sunshine is January, with an average of 3.3h of sunshine.

UV index

January through April, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Riggins. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 1 during January, leads to the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Opt for tightly woven and loose clothing to enhance protection from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

How cold is January in Riggins?

The high-temperature during January is 27.1°F (-2.7°C) and the low-temperature is 12°F (-11.1°C).

What is the average humidity in January in Riggins?

The average relative humidity in January in Riggins is 92%.

How many days does it rain in January in Riggins?

In Riggins, during January, the rain falls for 1.8 days and regularly aggregates up to 4.06" (103mm) of precipitation.

How many days does it snow in January in Riggins?

In Riggins, during January, snow falls for 20.6 days and regularly aggregates up to 33.78" (858mm) of snow.

How many hours of daylight does Riggins have in January?

The average day length in January is 9h and 12min.

When is the sunrise / sunset in January in Riggins?

On the first day of January in Riggins, sunrise is at 7:24 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:50 pm PST.

What is the month with the least sunshine in Riggins?

With an average of 3.3h of sunshine, January has the least sunshine of the year in Riggins.

How many hours of sunshine does Riggins have in January?

In January, the average sunshine duration in Riggins is 3.3h.

When is the lowest UV index in Riggins?

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

What is the UV index reading in January in Riggins?

In Riggins, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Riggins, ID

Average temperature in January - Riggins, ID
  • Average high temperature in January: 27.1°F

The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is December (25.3°F).

  • Average low temperature in January: 12°F

The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in January
Riggins, ID

Average pressure in January - Riggins, ID
  • Average pressure in January: 30.23"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Riggins, ID

Average wind speed in January - Riggins, ID
  • Average wind speed in January: 5.5mph

The windiest month (with the highest average wind speed) is March (6mph).
The calmest months (with the lowest average wind speed) are May, June, August and September (5.3mph).

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Average humidity in January
Riggins, ID

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

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in January
Riggins, ID

Average rainfall in January - Riggins, ID
  • Average rainfall in January: 4.06"

The wettest month (with the highest rainfall) is February (4.49").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in January
Riggins, ID

Average rainfall days in January - Riggins, ID
  • Average rainfall days in January: 1.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (1.8 days).

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Average snowfall in January
Riggins, ID

Average snowfall in January - Riggins, ID
  • Average snowfall in January: 33.78"

The month with the highest snowfall is February (36.1").
The month with the least snowfall is August (0.08").

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Average snowfall days in January
Riggins, ID

Average snowfall days in January - Riggins, ID
  • Average snowfall days in January: 20.6 days

The month with the highest number of snowfall days is March (24.9 days).
The month with the least snowfall days is August (0.3 days).

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

Average daylight in January / Average sunshine in January - Riggins, ID
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in January
Riggins, ID

Average sunshine days in January - Riggins, ID
  • Average sunshine days in January: 11 days

The month with the most sunshine days is July (22.3 days).
The months with the least sunshine days are February and March (6.3 days).

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Average UV index in January
Riggins, ID

Average UV index in January - Riggins, 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, April, November and December (UV index 1).

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Average cloud cover in January
Riggins, ID

Average cloud cover in January - Riggins, ID
  • Average cloud cover in January: 65

The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in January
Riggins, ID

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

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

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Riggins, Idaho, USA

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