January weather forecast
Granite, OR

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Weather in January

January, the same as December, in Granite, Oregon, is another subzero cold winter month, with an average temperature ranging between min 19.4°F (-7°C) and max 31.8°F (-0.1°C).

Temperature

With the transition into January, Granite notes an average high-temperature of a still subzero cold 31.8°F (-0.1°C), closely resembling December. Granite's January nights cool down to an average low-temperature of 19.4°F (-7°C).

Humidity

With an average relative humidity of 88%, January is the most humid month in Granite.

Rainfall

In January, the rain falls for 7.9 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. In Granite, during the entire year, the rain falls for 113.5 days and collects up to 12.56" (319mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Granite, in January, during 14.3 snowfall days, 9.76" (248mm) of snow is typically accumulated. Throughout the year, in Granite, there are 65.1 snowfall days, and 38.9" (988mm) of snow is accumulated.

Daylight

The average length of the day in January in Granite is 9h and 16min.
On the first day of January in Granite, sunrise is at 7:31 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:00 pm PST.

Sunshine

The month with the least sunshine is January, with an average of 4.8h of sunshine.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 1 transforms into these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

How cold is January in Granite?

In January, the average high-temperature and low-temperature in Granite are 31.8°F (-0.1°C) and 19.4°F (-7°C) respectively.

What is the most humid month in Granite?

The most humid month is January, with an average relative humidity of 88%.

What is the average humidity in January in Granite?

The average relative humidity in January in Granite is 88%.

How much does it rain in Granite in January?

In Granite, Oregon, during January, the rain falls for 7.9 days and regularly aggregates up to 1.61" (41mm) of precipitation.

How many days does it snow in January in Granite?

In Granite, during January, snow falls for 14.3 days and regularly aggregates up to 9.76" (248mm) of snow.

How many hours of daylight does Granite have in January?

The average day length in January in Granite is 9h and 16min.

When is the sunrise / sunset in January in Granite?

In January, on the first day of the month, sunrise is at 7:31 am and sunset at 4:23 pm. On the last day of the month, in Granite, sunrise is at 7:14 am and sunset at 5:00 pm PST.

What is the month with the least sunshine in Granite?

January has the least sunshine of the year in Granite, Oregon, with an average of 4.8h of sunshine.

How many hours of sunshine does Granite have in January?

In January, the average sunshine duration in Granite, Oregon, is 4.8h.

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

January is the month with the lowest UV index in Granite, Oregon, with an average maximum UV index of 1.

What is the UV index intensity in January in Granite?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Granite, OR

Average temperature in January - Granite, OR
  • Average high temperature in January: 31.8°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).

  • Average low temperature in January: 19.4°F

The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).

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Average pressure in January
Granite, OR

Average pressure in January - Granite, OR
  • Average pressure in January: 30.22"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).

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Average wind speed in January
Granite, OR

Average wind speed in January - Granite, OR
  • Average wind speed in January: 5.5mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).

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Average humidity in January
Granite, OR

Average humidity in January - Granite, OR
  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in January
Granite, OR

Average rainfall in January - Granite, OR
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").

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Average rainfall days in January
Granite, OR

Average rainfall days in January - Granite, OR
  • Average rainfall days in January: 7.9 days

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).

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Average snowfall in January
Granite, OR

Average snowfall in January - Granite, OR
  • Average snowfall in January: 9.76"

The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Granite, OR

Average snowfall days in January - Granite, OR
  • Average snowfall days in January: 14.3 days

The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Granite, OR

Average daylight in January / Average sunshine in January - Granite, OR
  • 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 5min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in January
Granite, OR

Average sunshine days in January - Granite, OR
  • Average sunshine days in January: 14.8 days

The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).

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Average UV index in January
Granite, OR

Average UV index in January - Granite, OR
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in January
Granite, OR

Average cloud cover in January - Granite, OR
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in January
Granite, OR

Average visibility in January - Granite, OR
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Granite, Oregon, USA

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