Monthly 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). In January, the average high-temperature is relatively the same as in December - a fresh 50.7°F (10.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another cool month in Onyx, California, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 50.5°F (10.3°C). In Onyx, the average high-temperature is relatively the same as in January - a still fresh 50.5°F (10.3°C). Weather in February »

Weather in March

The first month of the spring, March, is still a cool month in Onyx, California, with average temperature varying between 34.2°F (1.2°C) and 54.7°F (12.6°C). In Onyx, California, the average high-temperature in March is practically the same as in February - a still cool 54.7°F (12.6°C). Weather in March »

Weather in April

April is a mild spring month in Onyx, California, with average temperature fluctuating between 37.9°F (3.3°C) and 60.4°F (15.8°C). In April, the average high-temperature slightly increases, from a cool 54.7°F (12.6°C) in March, to a moderate 60.4°F (15.8°C). Weather in April »

Weather in May

May, the last month of the spring, in Onyx, is an enjoyable month, with average temperature varying between 44.6°F (7°C) and 67.8°F (19.9°C). In May, the average high-temperature marginally rises, from a mild 60.4°F (15.8°C) in April, to an enjoyable 67.8°F (19.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Onyx, California, with average temperature varying between 79.3°F (26.3°C) and 52.7°F (11.5°C). In June, the average high-temperature rises, from a comfortable 67.8°F (19.9°C) in May, to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Onyx, California, with average temperature fluctuating between 85.8°F (29.9°C) and 58.6°F (14.8°C). July is the warmest month, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 58.6°F (14.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Onyx, California, with average temperature fluctuating between 84.7°F (29.3°C) and 57.6°F (14.2°C). In Onyx, the average high-temperature in August is almost the same as in July - a still warm 84.7°F (29.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Onyx, California, with average temperature fluctuating between 52.7°F (11.5°C) and 78.6°F (25.9°C). In September, the average high-temperature marginally drops, from a moderately hot 84.7°F (29.3°C) in August, to a still warm 78.6°F (25.9°C). Weather in September »

Weather in October

October, like September, in Onyx, California, is another enjoyable autumn month, with average temperature varying between 67.5°F (19.7°C) and 45°F (7.2°C). In Onyx, the average high-temperature drops, from a moderately hot 78.6°F (25.9°C) in September, to a comfortable 67.5°F (19.7°C). Weather in October »

Weather in November

November, the last month of the autumn, in Onyx, is another mild month, with average temperature varying between 57.9°F (14.4°C) and 37.2°F (2.9°C). In November, the average high-temperature decreases, from an enjoyable 67.5°F (19.7°C) in October, to a moderate 57.9°F (14.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Onyx, California, with average temperature fluctuating between 48.7°F (9.3°C) and 30.9°F (-0.6°C). December is the coldest month, with an average high-temperature of 48.7°F (9.3°C) and an average low-temperature of 30.9°F (-0.6°C). Weather in December »
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FAQ

How many days does it rain in Onyx?

In Onyx, during the entire year, the rain falls for 61 days and collects up to 11.81" (300mm) of precipitation.

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.

When does it snow in Onyx?

January through April, November and December are months with snowfall.

How much does it snow in Onyx?

Throughout the year, in Onyx, there are 9.1 snowfall days, and 9.13" (232mm) of snow is accumulated.

What is the month with the least sunshine in Onyx?

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

What is the most humid month in Onyx?

The most humid month in Onyx is February, with an average relative humidity of 59%.

When does it snow the most in Onyx?

The month with the most snowfall is February when snow falls for 2.7 days and typically aggregates up to 3.15" (80mm) of snow.

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

Months with the lowest UV index in Onyx are February, November and December, with an average maximum UV index of 2.

When it does not snow in Onyx?

In Onyx, California, snow does not fall in May through October.

What is the driest month in Onyx?

The month with the least rainfall is June when the rain falls for 1.3 days and typically collects 0.08" (2mm) of precipitation.

When are the longest days in Onyx?

June has the longest days of the year in Onyx, with an average of 14.6h of daylight.

What is the month with the most sunshine in Onyx?

Months with the most sunshine in Onyx, California, are June and July, with an average of 12.1h of sunshine.

What are the months with the highest UV index in Onyx?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Onyx, California.

What is the warmest month in Onyx?

July is the warmest month in Onyx, California, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 58.6°F (14.8°C).

What is the least humid month in Onyx?

The least humid month in Onyx is August, with an average relative humidity of 31%.

What is the coldest month in Onyx?

With an average high-temperature of 48.7°F (9.3°C) and an average low-temperature of 30.9°F (-0.6°C), December is the coldest month.

What is the month with the shortest days in Onyx?

With an average of 9.8h of daylight, December has the shortest days of the year.

Average temperature
Onyx, CA

Average temperature - Onyx, CA

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).

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
Onyx, CA

Average pressure - Onyx, CA

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
Onyx, CA

Average wind speed - Onyx, CA

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 rainfall
Onyx, CA

Average rainfall - Onyx, CA

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
Onyx, CA

Average rainfall days - Onyx, CA

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
Onyx, CA

Average snowfall - Onyx, CA

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
Onyx, CA

Average snowfall days - Onyx, CA

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 / Average sunshine
Onyx, CA

Average daylight / Average sunshine - Onyx, CA

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

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
Onyx, CA

Average sunshine days - Onyx, CA

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 visibility
Onyx, CA

Average visibility - Onyx, CA

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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