Climate and monthly weather forecast
Onyx, CA

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Weather in January

January is a cool winter month in Onyx, California, with temperature in the range of an average high of 50.7°F (10.4°C) and an average low of 33.1°F (0.6°C). Onyx greets January with an average high-temperature of a fresh 50.7°F (10.4°C), marking a slight deviation from the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is another cool month in Onyx, California, with an average temperature varying between 50.5°F (10.3°C) and 32.4°F (0.2°C). Onyx transitions into February recording an average high-temperature of a still fresh 50.5°F (10.3°C), closely aligning with the preceding month's temperature. Weather in February »

Weather in March

The first month of the spring, March, is still a cool month in Onyx, California, with temperature in the range of an average high of 54.7°F (12.6°C) and an average low of 34.2°F (1.2°C). As February transitions into March, the average high-temperature rests at a still cool 54.7°F (12.6°C), maintaining a close resemblance to the previous month. Weather in March »

Weather in April

April in Onyx, California, is a refreshing spring month, with an average temperature varying between 60.4°F (15.8°C) and 37.9°F (3.3°C). The onset of April introduces a subtle rise in the average high-temperature, nudging 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

The last month of the spring, May, is a comfortable month in Onyx, California, with an average temperature fluctuating between 44.6°F (7°C) and 67.8°F (19.9°C). May showcases a minor temperature ascent, adjusting from April's refreshing 60.4°F (15.8°C) to a comfortable 67.8°F (19.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Onyx, California, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 79.3°F (26.3°C). The shift from May to June brings an increase in the average high-temperature, moving from a comfortable 67.8°F (19.9°C) to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Onyx, California, is a moderately hot summer month, with an average temperature varying between 58.6°F (14.8°C) and 85.8°F (29.9°C). Onyx's July weather, marked by an average high temperature of 85.8°F (29.9°C) and an average low temperature of 58.6°F (14.8°C), is the warmest in the year. Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Onyx, California, with an average temperature ranging between max 84.7°F (29.3°C) and min 57.6°F (14.2°C). Onyx's weather in August, with an average high-temperature of a still warm 84.7°F (29.3°C), subtly shifts from July's 85.8°F (29.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Onyx, California, with an average temperature ranging between min 52.7°F (11.5°C) and max 78.6°F (25.9°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 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 comfortable autumn month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 45°F (7.2°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 78.6°F (25.9°C) to a refreshing 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 temperature in the range of an average low of 37.2°F (2.9°C) and an average high of 57.9°F (14.4°C). In the transition to November, Onyx observes a drop in the average high-temperature, moving from a comfortable 67.5°F (19.7°C) in October to a still refreshing 57.9°F (14.4°C). Weather in November »

Weather in December

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

Frequently asked questions

What is the rainiest month in Onyx?

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

How many days does it rain in Onyx?

Throughout the year, in Onyx, California, there are 61 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

When does it snow in Onyx?

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

How many days does it snow in Onyx?

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

What is the month with the least sunshine in Onyx?

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

What is the most humid month in Onyx?

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

What is the snowiest month 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.

When is the lowest UV index in Onyx?

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

When is Daylight Saving Time (DST) in Onyx?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Onyx, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Onyx?

May through October are months without snowfall.

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?

The month with the longest days is June, with an average of 14h and 30min of daylight.

What is the month with the most sunshine in Onyx?

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

When is 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 hottest time of year in Onyx?

July registers as the month with the average highest temperatures in Onyx, reaching 85.8°F (29.9°C) at its peak and 58.6°F (14.8°C) at the lowest.

What is the least humid month in Onyx?

With an average relative humidity of 31%, August is the least humid month.

What is the coldest time of year in Onyx?

Onyx's December weather reaches an average high of 48.7°F (9.3°C) and an average low of 30.9°F (-0.6°C), making it the coldest month.

What is the month with the shortest days in Onyx?

With an average of 9h and 48min 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).

Average pressure
Onyx, CA

Average pressure - Onyx, CA

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

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).

Average humidity
Onyx, CA

Average humidity - Onyx, CA

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

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").

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).

Average snowfall
Onyx, CA

Average snowfall - Onyx, CA

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

Average snowfall days
Onyx, CA

Average snowfall days - Onyx, CA

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

Average daylight / Average sunshine
Onyx, CA

Average daylight / Average sunshine - Onyx, CA

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).

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).

Average UV index
Onyx, CA

Average UV index - Onyx, CA

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

Average visibility
Onyx, CA

Average visibility - Onyx, CA

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

Onyx, California, USA

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