January weather forecast and climate
Sierraville, CA

Weather in January

January, the same as December, is another cold winter month in Sierraville, California, with average temperature varying between 23.2°F (-4.9°C) and 38.8°F (3.8°C).

Temperature

In Sierraville, the average high-temperature is almost the same as in December - a still wintry 38.8°F (3.8°C). In Sierraville, the average low-temperature is 23.2°F (-4.9°C).

Humidity

Months with the highest humidity are January and March, with an average relative humidity of 81%.

Rainfall

In Sierraville, during January, the rain falls for 6.8 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, there are 80.1 rainfall days, and 22.95" (583mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. In Sierraville, in January, snow falls for 10.5 days, with typically accumulated 19.09" (485mm) of snow. Throughout the year, in Sierraville, there are 69.3 snowfall days, and 103.5" (2629mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

January has the least sunshine of the year in Sierraville, with an average of 5h of sunshine.

UV index

The average daily maximum UV index in Sierraville is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in January in Sierraville?

The average high-temperature, in January, in Sierraville, is 38.8°F (3.8°C), while the average low-temperature is 23.2°F (-4.9°C).

What is the most humid month in Sierraville?

January and March, with an average relative humidity of 81%, are most humid months in Sierraville.

What is the average humidity in January in Sierraville?

The average relative humidity in January in Sierraville is 81%.

How much does it rain in Sierraville in January?

In Sierraville, in January, it is raining for 6.8 days, with typically 3.62" (92mm) of accumulated precipitation.

How many days does it snow in January in Sierraville?

In Sierraville, in January, snow falls for 10.5 days, with typically accumulated 19.09" (485mm) of snow.

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

In January, the average length of the day in Sierraville, California, is 9.8h.

What is the month with the least sunshine in Sierraville?

January has the least sunshine of the year, with an average of 5h of sunshine.

How long on average sun shines in January in Sierraville?

The average sunshine in January in Sierraville, California, is 5h.

What is the UV index intensity in January in Sierraville?

In January, the average daily maximum UV index in Sierraville, California, is 2. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.

Average temperature in January
Sierraville, CA

Average temperature in January - Sierraville, CA
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in January: 23.2°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).

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Average pressure in January
Sierraville, CA

Average pressure in January - Sierraville, CA
  • Average pressure in January: 30.19"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in January
Sierraville, CA

Average wind speed in January - Sierraville, CA
  • Average wind speed in January: 5.7mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

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Average humidity in January
Sierraville, CA

Average humidity in January - Sierraville, CA
  • Average humidity in January: 81%

Months with the highest relative humidity are January and March (81%).
Months with the lowest relative humidity are July and August (40%).

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Average rainfall in January
Sierraville, CA

Average rainfall in January - Sierraville, CA
  • Average rainfall in January: 3.62"

The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in January
Sierraville, CA

Average rainfall days in January - Sierraville, CA
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).

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Average snowfall in January
Sierraville, CA

Average snowfall in January - Sierraville, CA
  • Average snowfall in January: 19.09"

The month with the highest snowfall is December (22.52").
Months with the least snowfall are July and August (0").

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Average snowfall days in January
Sierraville, CA

Average snowfall days in January - Sierraville, CA
  • Average snowfall days in January: 10.5 days

The month with the highest number of snowfall days is March (14.7 days).
Months with the least snowfall days are July and August (0 days).

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

Average daylight in January / Average sunshine in January - Sierraville, CA
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 5h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5h).

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Average sunshine days in January
Sierraville, CA

Average sunshine days in January - Sierraville, CA
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).

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Average UV index in January
Sierraville, CA

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

Months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in January
Sierraville, CA

Average cloud cover in January - Sierraville, CA
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in January
Sierraville, CA

Average visibility in January - Sierraville, CA
  • Average visibility in January: 4mi

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

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