Monthly weather forecast and climate
Antioch, CA

A high bridge passing over the famous San Joaquin River Delta in Antioch, California
A high bridge passing over the famous San Joaquin River Delta in Antioch, California

Weather in January

January in Antioch, California, is a moderate winter month, with average temperature ranging between min 41.5°F (5.3°C) and max 56.1°F (13.4°C). In January, the average high-temperature is relatively the same as in December - a moderate 56.1°F (13.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another mild month in Antioch, California, with average temperature varying between 42.4°F (5.8°C) and 59.7°F (15.4°C). In Antioch, the average high-temperature is essentially the same as in January - a still moderate 59.7°F (15.4°C). Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Antioch, California, with average temperature fluctuating between 63.5°F (17.5°C) and 43.9°F (6.6°C). In Antioch, California, the average high-temperature is almost the same as in February - an enjoyable 63.5°F (17.5°C). Weather in March »

Weather in April

April is an agreeable spring month in Antioch, California, with average temperature fluctuating between 69.4°F (20.8°C) and 46.6°F (8.1°C). In April, the average high-temperature slightly increases, from a comfortable 63.5°F (17.5°C) in March, to a pleasant 69.4°F (20.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Antioch, California, with average temperature ranging between min 50.5°F (10.3°C) and max 75.6°F (24.2°C). In Antioch, California, the average high-temperature in May slightly increases, from a pleasant 69.4°F (20.8°C) in April, to a moderately hot 75.6°F (24.2°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Antioch, California, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 84.4°F (29.1°C). In Antioch, the average high-temperature in June slightly increases, from a warm 75.6°F (24.2°C) in May, to a still moderately hot 84.4°F (29.1°C). Weather in June »

Weather in July

July is a tropical summer month in Antioch, California, with average temperature varying between 88.5°F (31.4°C) and 56.5°F (13.6°C). With an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C), July is the warmest month. The average heat index in July is evaluated at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Antioch, California, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 57.4°F (14.1°C). In August, the average high-temperature is practically the same as in July - a still hot 87.4°F (30.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Antioch, California, with average temperature fluctuating between 85.3°F (29.6°C) and 57.7°F (14.3°C). In Antioch, the average high-temperature is almost the same as in August - a warm 85.3°F (29.6°C). Weather in September »

Weather in October

October, like September, in Antioch, California, is a moderately hot autumn month, with average temperature varying between 75.9°F (24.4°C) and 54°F (12.2°C). In October, the average high-temperature drops, from 85.3°F (29.6°C) in September, to a still moderately hot 75.9°F (24.4°C). Weather in October »

Weather in November

November, the last month of the autumn, in Antioch, is also an enjoyable month, with average temperature varying between 46.6°F (8.1°C) and 63.9°F (17.7°C). In November, the average high-temperature decreases, from a moderately hot 75.9°F (24.4°C) in October, to an enjoyable 63.9°F (17.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Antioch, California, with average temperature ranging between min 41.7°F (5.4°C) and max 55°F (12.8°C). December is the coldest month, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C). Weather in December »
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FAQ

What is the most humid month in Antioch?

With an average relative humidity of 74%, January is the most humid month.

How many days does it rain in Antioch?

In Antioch, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.

How many days does it snow in Antioch?

In Antioch, California, during the entire year, snow falls for 0.1 days.

When it does not snow in Antioch?

January through November are months without snowfall in Antioch, California.

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

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Antioch, California.

What is the wettest month in Antioch?

February is the month with the most rainfall in Antioch, California. Rain falls for 7.8 days and accumulates 2.09" (53mm) of precipitation.

When are the longest days in Antioch?

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

When is the highest UV index in Antioch?

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

What is the warmest month in Antioch?

With an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C), July is the warmest month.

What is the driest month in Antioch?

Months with the least rainfall in Antioch are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Antioch?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Antioch, California.

What is the least humid month in Antioch?

The least humid month in Antioch, California, is September, with an average relative humidity of 52%.

What is the coldest month in Antioch?

With an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C), December is the coldest month in Antioch, California.

When does it snow in Antioch?

December is the only month when snow falls in Antioch, California.

What is the snowiest month in Antioch?

December has the most snowfall days of the year. Snow falls for 0.1 days.

What is the month with the shortest days in Antioch?

The month with the shortest days in Antioch, California, is December, with an average of 9.6h of daylight.

What is the month with the least sunshine in Antioch?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

Average temperature
Antioch, CA

Average temperature - Antioch, CA

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure
Antioch, CA

Average pressure - Antioch, CA

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Antioch, CA

Average wind speed - Antioch, CA

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

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Average rainfall
Antioch, CA

Average rainfall - Antioch, CA

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Antioch, CA

Average rainfall days - Antioch, CA

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall days
Antioch, CA

Average snowfall days - Antioch, CA

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Antioch, CA

Average daylight / Average sunshine - Antioch, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days
Antioch, CA

Average sunshine days - Antioch, CA

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

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Average UV index
Antioch, CA

Average UV index - Antioch, CA

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Antioch, CA

Average visibility - Antioch, 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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