Monthly weather forecast and climate
Arcadia, CA

Weather in January

January, the same as December, is another comfortable winter month in Arcadia, California, with average temperature ranging between min 47.1°F (8.4°C) and max 64.8°F (18.2°C). In Arcadia, the average high-temperature in January is essentially the same as in December - a still enjoyable 64.8°F (18.2°C). Weather in January »

Weather in February

February, the last month of the winter, in Arcadia, is also an enjoyable month, with average temperature ranging between min 46.4°F (8°C) and max 64.2°F (17.9°C). In February, the average high-temperature is relatively the same as in January - a still enjoyable 64.2°F (17.9°C). Weather in February »

Weather in March

March, the first month of the spring, in Arcadia, is also an enjoyable month, with average temperature varying between 67.6°F (19.8°C) and 47.8°F (8.8°C). In Arcadia, California, the average high-temperature is essentially the same as in February - a still enjoyable 67.6°F (19.8°C). Weather in March »

Weather in April

April is a pleasant spring month in Arcadia, California, with average temperature fluctuating between 72°F (22.2°C) and 50.5°F (10.3°C). In April, the average high-temperature is almost the same as in March - a pleasant 72°F (22.2°C). Weather in April »

Weather in May

May, the last month of the spring, in Arcadia, is a warm month, with average temperature fluctuating between 53.8°F (12.1°C) and 75.4°F (24.1°C). In Arcadia, the average high-temperature in May is essentially the same as in April - a moderately hot 75.4°F (24.1°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Arcadia, California, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 81.3°F (27.4°C). In June, the average high-temperature slightly increases, from 75.4°F (24.1°C) in May, to a still moderately hot 81.3°F (27.4°C). Weather in June »

Weather in July

July is a tropical summer month in Arcadia, California, with average temperature varying between 86.5°F (30.3°C) and 63.5°F (17.5°C). In July, the average high-temperature is practically the same as in June - a tropical 86.5°F (30.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Arcadia, California, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 64.8°F (18.2°C). August is the warmest month, with an average high-temperature of 88.2°F (31.2°C) and an average low-temperature of 64.8°F (18.2°C). The average heat index in August is calculated to a hot 90.7°F (32.6°C). Weather in August »

Weather in September

September, the first month of the autumn, in Arcadia, is still a warm month, with average temperature varying between 63.1°F (17.3°C) and 85.3°F (29.6°C). In September, 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 Arcadia, California, is a moderately hot autumn month, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 78.3°F (25.7°C). In Arcadia, the average high-temperature slightly decreases, from a moderately hot 85.3°F (29.6°C) in September, to a still warm 78.3°F (25.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Arcadia, California, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 70.2°F (21.2°C). In November, the average high-temperature marginally drops, from a warm 78.3°F (25.7°C) in October, to an agreeable 70.2°F (21.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a comfortable month in Arcadia, California, with average temperature varying between 46.2°F (7.9°C) and 62.1°F (16.7°C). The coldest month is December, with an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 46.2°F (7.9°C). Weather in December »
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FAQ

How many days does it rain in Arcadia?

Throughout the year, in Arcadia, there are 48.7 rainfall days, and 7.48" (190mm) of precipitation is accumulated.

What is the month with the least sunshine in Arcadia?

Months with the least sunshine in Arcadia, California, are January, February and December, with an average of 6.9h of sunshine.

What is the most humid month in Arcadia?

March, May and June, with an average relative humidity of 56%, are most humid months in Arcadia, California.

What is the driest month in Arcadia?

The month with the least rainfall is June when the rain falls for 1.3 days and typically collects 0.04" (1mm) of precipitation.

When are the longest days in Arcadia?

The month with the longest days in Arcadia is June, with an average of 14.4h of daylight.

What is the month with the highest UV index in Arcadia?

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

What month has the most sunshine in Arcadia?

The month with the most sunshine in Arcadia, California, is July, with an average of 12.1h of sunshine.

What is the warmest month in Arcadia?

August is the warmest month in Arcadia, California, with an average high-temperature of 88.2°F (31.2°C) and an average low-temperature of 64.8°F (18.2°C).

What is the least humid month in Arcadia?

November is the least humid month, with an average relative humidity of 46%.

What is the coldest month in Arcadia?

With an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 46.2°F (7.9°C), December is the coldest month in Arcadia.

What is the rainiest month in Arcadia?

December is the month with the most rainfall in Arcadia, California. Rain falls for 5.8 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days in Arcadia?

The month with the shortest days in Arcadia, California, is December, with an average of 9.9h of daylight.

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

The month with the lowest UV index is December, with an average maximum UV index of 3.

Average temperature
Arcadia, CA

Average temperature - Arcadia, CA

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (62.1°F).

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

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Average pressure
Arcadia, CA

Average pressure - Arcadia, CA

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed
Arcadia, CA

Average wind speed - Arcadia, CA

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity
Arcadia, CA

Average humidity - Arcadia, CA

Months with the highest relative humidity are March, May and June (56%).
The month with the lowest relative humidity is November (46%).

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Average rainfall
Arcadia, CA

Average rainfall - Arcadia, CA

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days
Arcadia, CA

Average rainfall days - Arcadia, CA

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.3 days).

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Average daylight / Average sunshine
Arcadia, CA

Average daylight / Average sunshine - Arcadia, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.9).

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Average sunshine days
Arcadia, CA

Average sunshine days - Arcadia, CA

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (22 days).

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Average visibility
Arcadia, CA

Average visibility - Arcadia, 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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