January weather forecast and climate
Onyx, CA

Weather in January

January is a fresh winter month in Onyx, California, with average temperature varying between 50.7°F (10.4°C) and 33.1°F (0.6°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a fresh 50.7°F (10.4°C). The average low-temperature, is 33.1°F (0.6°C).

Humidity

In January, the average relative humidity in Onyx is 58%.

Rainfall

The month with the most rainfall is January when the rain falls for 7.2 days and typically aggregates up to 2.48" (63mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In January, in Onyx, California, it is snowing for 1.5 days. Throughout January, 1.65" (42mm) of snow is accumulated. In Onyx, during the entire year, snow falls for 9.1 days, and aggregates up to 9.13" (232mm) of snow.

Daylight

In Onyx, California, the average length of the day is 10.1h.

Sunshine

January, February and December, with an average of 6.7h of sunshine, are months with the least sunshine in Onyx.

UV index

The average daily maximum UV index in Onyx is 3. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Onyx?

In January, in Onyx, California, the average high-temperature is 50.7°F (10.4°C), and the average low-temperature is 33.1°F (0.6°C).

What is the average humidity in January in Onyx?

The average relative humidity in January in Onyx, California, is 58%.

How many days does it rain in January in Onyx?

In January, in Onyx, the rain falls for 7.2 days. Throughout January, 2.48" (63mm) of precipitation is accumulated.

What is the rainiest month in Onyx?

January is the month with the most rainfall in Onyx. Rain falls for 7.2 days and accumulates 2.48" (63mm) of precipitation.

How much does it snow in Onyx in January?

In January, in Onyx, California, it is snowing for 1.5 days. Throughout January, 1.65" (42mm) of snow is accumulated.

How many hours of daylight does Onyx have in January?

The average length of the day in January is 10.1h.

What is the month with the least sunshine in Onyx?

Months with the least sunshine in Onyx, California, are January, February and December, with an average of 6.7h of sunshine.

How long on average sun shines in January in Onyx?

In Onyx, California, the average sunshine in January is 6.7h.

How high is the UV index in January in Onyx?

In Onyx, California, the average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in January
Onyx, CA

Average temperature in January - Onyx, CA
  • Average high temperature in January: 50.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48.7°F).

  • Average low temperature in January: 33.1°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).

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Average pressure in January
Onyx, CA

Average pressure in January - Onyx, CA
  • Average pressure in January: 30.14"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in January
Onyx, CA

Average wind speed in January - Onyx, CA
  • Average wind speed in January: 5.4mph

The windiest months (with the highest average wind speed) are May and June (7.3mph).
The calmest months (with the lowest average wind speed) are January and September (5.4mph).

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Average humidity in January
Onyx, CA

Average humidity in January - Onyx, CA
  • Average humidity in January: 58%

The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is August (31%).

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Average rainfall in January
Onyx, CA

Average rainfall in January - Onyx, CA
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is January (2.48").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in January
Onyx, CA

Average rainfall days in January - Onyx, CA
  • Average rainfall days in January: 7.2 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in January
Onyx, CA

Average snowfall in January - Onyx, CA
  • Average snowfall in January: 1.65"

The month with the highest snowfall is February (3.15").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Onyx, CA

Average snowfall days in January - Onyx, CA
  • Average snowfall days in January: 1.5 days

The month with the highest number of snowfall days is February (2.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Onyx, CA
  • Average daylight in January: 10.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in January: 6.7h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.7).

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Average sunshine days in January
Onyx, CA

Average sunshine days in January - Onyx, CA
  • Average sunshine days in January: 22.1 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (19 days).

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Average UV index in January
Onyx, CA

Average UV index in January - Onyx, CA
  • Average UV index in January: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in January
Onyx, CA

Average cloud cover in January - Onyx, CA
  • Average cloud cover in January: 24

The month with the most cloud cover is March (Cloud cover 26).
Months with the least cloud cover are August and September (Cloud cover 5).

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Average visibility in January
Onyx, CA

Average visibility in January - Onyx, CA
  • Average visibility in January: 6mi

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

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