Monthly weather forecast and climate
Arnold, CA

Weather in January

January in Arnold, California, is a cool winter month, with average temperature ranging between max 50.7°F (10.4°C) and min 34°F (1.1°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

February, the last month of the winter, in Arnold, is also a fresh month, with temperature in the range of an average low of 33.3°F (0.7°C) and an average high of 50°F (10°C). In February, the average high-temperature is almost the same as in January - a still fresh 50°F (10°C). Weather in February »

Weather in March

The first month of the spring, March, is still a cool month in Arnold, California, with average temperature varying between 35.1°F (1.7°C) and 52.2°F (11.2°C). In March, the average high-temperature is practically the same as in February - a still fresh 52.2°F (11.2°C). Weather in March »

Weather in April

April in Arnold, California, is a mild spring month, with average temperature varying between 58.8°F (14.9°C) and 38.5°F (3.6°C). In Arnold, California, the average high-temperature in April marginally rises, from a fresh 52.2°F (11.2°C) in March, to a moderate 58.8°F (14.9°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Arnold, California, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 66.6°F (19.2°C). In May, the average high-temperature slightly increases, from a mild 58.8°F (14.9°C) in April, to a comfortable 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Arnold, California, with average temperature ranging between min 52°F (11.1°C) and max 78.1°F (25.6°C). In Arnold, the average high-temperature in June rises, from a comfortable 66.6°F (19.2°C) in May, to a warm 78.1°F (25.6°C). Weather in June »

Weather in July

July, like June, in Arnold, California, is another warm summer month, with average temperature varying between 85.8°F (29.9°C) and 57.2°F (14°C). The warmest month is July, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 57.2°F (14°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Arnold, California, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 56.8°F (13.8°C). In August, the average high-temperature is practically the same as in July - a still warm 84.9°F (29.4°C). Weather in August »

Weather in September

September, the first month of the autumn, in Arnold, is also a moderately hot month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 79.3°F (26.3°C). In September, the average high-temperature marginally drops, from 84.9°F (29.4°C) in August, to a still moderately hot 79.3°F (26.3°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Arnold, California, with average temperature ranging between min 46.2°F (7.9°C) and max 67.5°F (19.7°C). In October, the average high-temperature drops, from a warm 79.3°F (26.3°C) in September, to an enjoyable 67.5°F (19.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderate month in Arnold, California, with average temperature fluctuating between 56.3°F (13.5°C) and 38.3°F (3.5°C). In Arnold, the average high-temperature decreases, from a comfortable 67.5°F (19.7°C) in October, to a moderate 56.3°F (13.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Arnold, California, with average temperature varying between 32°F (0°C) and 48°F (8.9°C). December is the coldest month, with an average high-temperature of 48°F (8.9°C) and an average low-temperature of 32°F (0°C). Weather in December »
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FAQ

How much does it rain in Arnold?

Throughout the year, in Arnold, there are 69 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

When does it snow in Arnold?

January through May, October through December are months with snowfall in Arnold, California.

How many days does it snow in Arnold?

In Arnold, California, during the entire year, snow falls for 31 days, and aggregates up to 79.92" (2030mm) of snow.

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

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

What is the most humid month in Arnold?

With an average relative humidity of 74%, March is the most humid month in Arnold.

What is the rainiest month in Arnold?

The month with the most rainfall in Arnold is March when the rain falls for 11.3 days and typically aggregates up to 5.98" (152mm) of precipitation.

When does it snow the most in Arnold?

March is the month with the most snowfall. Snow falls for 7.2 days and accumulates 21.34" (542mm) of snow.

When it does not snow in Arnold?

In Arnold, California, snow does not fall in June through September.

When are the longest days in Arnold?

June has the longest days of the year, with an average of 14.8h of daylight.

When is the highest UV index in Arnold?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the warmest month in Arnold?

With an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 57.2°F (14°C), July is the warmest month in Arnold.

What is the least humid month in Arnold?

With an average relative humidity of 36%, July is the least humid month in Arnold.

What is the driest month in Arnold?

Months with the least rainfall in Arnold are July and August Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.

What month has the most sunshine in Arnold?

With an average of 12.2h of sunshine, July has the most sunshine of the year.

What is the coldest month in Arnold?

December is the coldest month in Arnold, California, with an average high-temperature of 48°F (8.9°C) and an average low-temperature of 32°F (0°C).

What is the month with the shortest days in Arnold?

December has the shortest days of the year, with an average of 9.5h of daylight.

What is the month with the least sunshine in Arnold?

December has the least sunshine of the year in Arnold, California, with an average of 6h of sunshine.

Average pressure
Arnold, CA

Average pressure - Arnold, CA

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Arnold, CA

Average wind speed - Arnold, CA

The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average rainfall
Arnold, CA

Average rainfall - Arnold, CA

The wettest month (with the highest rainfall) is March (5.98").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days
Arnold, CA

Average rainfall days - Arnold, CA

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.6 days).

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Average snowfall
Arnold, CA

Average snowfall - Arnold, CA

The month with the highest snowfall is March (21.34").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Arnold, CA

Average snowfall days - Arnold, CA

The month with the highest number of snowfall days is March (7.2 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Arnold, CA

Average daylight / Average sunshine - Arnold, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days
Arnold, CA

Average sunshine days - Arnold, CA

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is March (14.5 days).

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Average UV index
Arnold, CA

Average UV index - Arnold, CA

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 visibility
Arnold, CA

Average visibility - Arnold, 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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