January weather forecast
Alturas, CA

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Weather in January

January, the same as December, is a wintry winter month in Alturas, California, with an average temperature varying between 24.4°F (-4.2°C) and 38.7°F (3.7°C).

Temperature

Alturas experiences an average high-temperature of a still cold 38.7°F (3.7°C) with the onset of January, subtly varied from December's 36.1°F (2.3°C). An average nighttime temperature of 24.4°F (-4.2°C) is recorded in Alturas during January.

Humidity

The months with the highest humidity in Alturas are January and December, with an average relative humidity of 79%.

Rainfall

In Alturas, during January, the rain falls for 9.1 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Alturas, there are 91.1 rainfall days, and 12.64" (321mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Alturas. In Alturas, during January, snow falls for 10.2 days and regularly aggregates up to 7.32" (186mm) of snow. Throughout the year, in Alturas, there are 60.7 snowfall days, and 39.53" (1004mm) of snow is accumulated.

Daylight

In Alturas, the average length of the day in January is 9h and 35min.
On the first day of January, sunrise is at 7:28 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:16 pm PST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.4h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, 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 maximum UV index of 2 in January interprets into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

How cold does it get in Alturas in January?

The high-temperature, in January, in Alturas, is 38.7°F (3.7°C), while the low-temperature averages to 24.4°F (-4.2°C).

What are the most humid months in Alturas?

January and December, with an average relative humidity of 79%, are most humid months in Alturas, California.

What is the average humidity in January in Alturas?

In January, the average relative humidity in Alturas, California, is 79%.

How much does it rain in Alturas in January?

In Alturas, in January, during 9.1 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How much does it snow in Alturas in January?

In January, in Alturas, California, it is snowing for 10.2 days. Throughout January, 7.32" (186mm) of snow is accumulated.

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

In January, the average day length in Alturas, California, is 9h and 35min.

When are sunrise and sunset in January in Alturas?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:42 pm. On the last day of the month, in Alturas, sunrise is at 7:14 am and sunset at 5:16 pm PST.

What is the month with the least sunshine in Alturas?

January and December, with an average of 5.4h of sunshine, are months with the least sunshine in Alturas, California.

How long on average sun shines in January in Alturas?

In Alturas, the average sunshine duration in January is 5.4h.

What are the months with the lowest UV index in Alturas?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Alturas?

In Alturas, California, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Alturas, CA

Average temperature in January - Alturas, CA
  • Average high temperature in January: 38.7°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is December (36.1°F).

  • Average low temperature in January: 24.4°F

The month with the highest average low temperature is July (52.5°F).
The coldest month (with the lowest average low temperature) is December (23°F).

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Average pressure in January
Alturas, CA

Average pressure in January - Alturas, CA
  • Average pressure in January: 30.21"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Alturas, CA

Average wind speed in January - Alturas, CA
  • Average wind speed in January: 7.1mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Alturas, CA

Average humidity in January - Alturas, CA
  • Average humidity in January: 79%

The months with the highest relative humidity are January and December (79%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in January
Alturas, CA

Average rainfall in January - Alturas, CA
  • Average rainfall in January: 1.65"

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in January
Alturas, CA

Average rainfall days in January - Alturas, CA
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (2.5 days).

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Average snowfall in January
Alturas, CA

Average snowfall in January - Alturas, CA
  • Average snowfall in January: 7.32"

The month with the highest snowfall is December (9.02").
The months with the least snowfall are July and August (0").

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Average snowfall days in January
Alturas, CA

Average snowfall days in January - Alturas, CA
  • Average snowfall days in January: 10.2 days

The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in January /
Average sunshine in January
Alturas, CA

Average daylight in January / Average sunshine in January - Alturas, CA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days in January
Alturas, CA

Average sunshine days in January - Alturas, CA
  • Average sunshine days in January: 15.3 days

The months with the most sunshine days are July and August (26.3 days).
The month with the least sunshine days is March (12.8 days).

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Average UV index in January
Alturas, CA

Average UV index in January - Alturas, CA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Alturas, CA

Average cloud cover in January - Alturas, CA
  • Average cloud cover in January: 42

The months with the most cloud cover are March and December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in January
Alturas, CA

Average visibility in January - Alturas, CA
  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

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Alturas, California, USA

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