January weather forecast
Gray, ID

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Weather in January

January, the same as December, in Gray, Idaho, is a freezing cold winter month, with an average temperature varying between 26.1°F (-3.3°C) and 7.3°F (-13.7°C).

Temperature

The average high-temperature during January registers at a still subzero cold 26.1°F (-3.3°C), closely corresponding to the preceding month. The average low-temperature of 7.3°F (-13.7°C) is witnessed during January.

Humidity

The average relative humidity in January is 93%.

Rainfall

In Gray, in January, during 4.6 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Gray, there are 127 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In Gray, in January, snow falls for 20.6 days, with typically accumulated 22.09" (561mm) of snow. In Gray, during the entire year, snow falls for 126.6 days and aggregates up to 110.28" (2801mm) of snow.

Daylight

The average length of the day in January is 9h and 26min.
On the first day of the month, sunrise is at 7:56 am and sunset at 5:01 pm. On the last day of January, in Gray, sunrise is at 7:41 am and sunset at 5:36 pm MST.

Sunshine

In January, the average sunshine is 4.1h.

UV index

The months with the lowest UV index in Gray are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January in Gray?

January temperatures in Gray vary between a high-temperature of 26.1°F (-3.3°C) and a low-temperature of 7.3°F (-13.7°C).

What is the average humidity in January in Gray?

The average relative humidity in January in Gray, Idaho, is 93%.

How many days does it rain in January in Gray?

In Gray, Idaho, in January, during 4.6 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

How many days does it snow in January in Gray?

In Gray, Idaho, during January, snow falls for 20.6 days and regularly aggregates up to 22.09" (561mm) of snow.

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

The average day length in January in Gray is 9h and 26min.

What time are sunrise and sunset in January in Gray?

On the first day of January in Gray, sunrise is at 7:56 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:36 pm MST.

How long on average sun shines in January in Gray?

In Gray, Idaho, the average sunshine duration in January is 4.1h.

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

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Gray, Idaho.

What is the UV index intensity in January in Gray?

In Gray, 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 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
Gray, ID

Average temperature in January - Gray, ID
  • Average high temperature in January: 26.1°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).

  • Average low temperature in January: 7.3°F

The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

Average pressure in January
Gray, ID

Average pressure in January - Gray, ID
  • Average pressure in January: 30.28"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Gray, ID

Average wind speed in January - Gray, ID
  • Average wind speed in January: 4.3mph

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

Average humidity in January
Gray, ID

Average humidity in January - Gray, ID
  • Average humidity in January: 93%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).

Average rainfall in January
Gray, ID

Average rainfall in January - Gray, ID
  • Average rainfall in January: 2.64"

The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").

Average rainfall days in January
Gray, ID

Average rainfall days in January - Gray, ID
  • Average rainfall days in January: 4.6 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).

Average snowfall in January
Gray, ID

Average snowfall in January - Gray, ID
  • Average snowfall in January: 22.09"

The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Gray, ID

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

The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 4h and 1min

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

Average sunshine days in January
Gray, ID

Average sunshine days in January - Gray, ID
  • Average sunshine days in January: 10.4 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).

Average UV index in January
Gray, ID

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

Average cloud cover in January
Gray, ID

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

The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in January
Gray, ID

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

Gray, Idaho, USA

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