January weather forecast
Sam, ID

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Weather in January

January, like December, is a freezing cold winter month in Sam, Idaho, with an average temperature varying between 25.7°F (-3.5°C) and 9.1°F (-12.7°C).

Temperature

January brings an average high-temperature of a still subzero cold 25.7°F (-3.5°C), nearly identical to the preceding month. Throughout January, Sam registers a consistent average low-temperature of 9.1°F (-12.7°C).

Humidity

The average relative humidity in January is 92%.

Rainfall

In Sam, during January, the rain falls for 4.5 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Sam, during the entire year, the rain falls for 110.1 days and collects up to 23.35" (593mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 19.2 days and accumulates 24.06" (611mm) of snow.

Daylight

In Sam, Idaho, the average length of the day in January is 9h and 22min.
On the first day of the month, sunrise is at 7:58 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:42 am and sunset at 5:34 pm MST.

Sunshine

The month with the least sunshine is January, with an average of 4h of sunshine.

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 1 in January translates into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. 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. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in January?

January temperatures vary between a high-temperature of 25.7°F (-3.5°C) and a low-temperature of 9.1°F (-12.7°C).

What is the average humidity in January?

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

How much does it rain in January?

In Sam, in January, during 4.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When does it snow the most?

January is the month with the most snowfall in Sam. Snow falls for 19.2 days and accumulates 24.06" (611mm) of snow.

How many days does it snow in January?

In January, it is snowing for 19.2 days. Throughout January, 24.06" (611mm) of snow is accumulated.

How many hours of daylight does Sam have in January?

In Sam, the average day length in January is 9h and 22min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:58 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:34 pm MST.

What is the month with the least sunshine in Sam?

January has the least sunshine of the year, with an average of 4h of sunshine.

How long on average sun shines in January?

In Sam, the average sunshine duration in January is 4h.

When is the lowest UV index in Sam?

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

What is the UV index intensity in January in Sam?

In Sam, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average max. wind speed
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
Sam, ID

Average temperature in January - Sam, ID
  • Average high temperature in January: 25.7°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (23.9°F).

  • Average low temperature in January: 9.1°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in January
Sam, ID

Average pressure in January - Sam, 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).

Average wind speed in January
Sam, ID

Average wind speed in January - Sam, ID
  • Average wind speed in January: 4.6mph

The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).

Average humidity in January
Sam, ID

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

The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).

Average rainfall in January
Sam, ID

Average rainfall in January - Sam, ID
  • Average rainfall in January: 2.87"

The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.71").

Average rainfall days in January
Sam, ID

Average rainfall days in January - Sam, ID
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in January
Sam, ID

Average snowfall in January - Sam, ID
  • Average snowfall in January: 24.06"

The month with the highest snowfall is January (24.06").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Sam, ID

Average snowfall days in January - Sam, ID
  • Average snowfall days in January: 19.2 days

The month with the highest number of snowfall days is December (21.8 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in January / Average sunshine in January - Sam, 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: 4h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Sam, ID

Average sunshine days in January - Sam, ID
  • Average sunshine days in January: 12.3 days

The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in January
Sam, ID

Average UV index in January - Sam, 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 and December (UV index 1).

Average cloud cover in January
Sam, ID

Average cloud cover in January - Sam, ID
  • Average cloud cover in January: 61

The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in January
Sam, ID

Average visibility in January - Sam, 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 and February (3mi).

Sam, Idaho, USA

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