Altadena
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Altadena, CA

January, the same as December, is another enjoyable winter month in Altadena, California, with average temperature ranging between min 44.2°F (6.8°C) and max 67.8°F (19.9°C). January is the coldest month, with an average high-temperature of 67.8°F (19.9°C) and an average low-temperature of 44.2°F (6.8°C). Weather in January »
The last month of the winter, February, is a pleasant month in Altadena, California, with average temperature varying between 70.3°F (21.3°C) and 45.9°F (7.7°C). In February, the average high-temperature is essentially the same as in January - a pleasant 70.3°F (21.3°C). Weather in February »

March, the first month of the spring, in Altadena, is still a pleasant month, with average temperature fluctuating between 71.2°F (21.8°C) and 47.1°F (8.4°C). In Altadena, the average high-temperature is essentially the same as in February - a still pleasant 71.2°F (21.8°C). Weather in March »

April in Altadena, California, is a warm spring month, with average temperature varying between 50°F (10°C) and 75.9°F (24.4°C). In April, the average high-temperature is almost the same as in March - a warm 75.9°F (24.4°C). Weather in April »

May, the last month of the spring, in Altadena, is another warm month, with average temperature varying between 53.4°F (11.9°C) and 78.3°F (25.7°C). In May, the average high-temperature is practically the same as in April - a still moderately hot 78.3°F (25.7°C). Weather in May »

The first month of the summer, June, is also a moderately hot month in Altadena, California, with average temperature ranging between max 84°F (28.9°C) and min 57.4°F (14.1°C). In Altadena, the average high-temperature marginally rises, from a warm 78.3°F (25.7°C) in May, to a still moderately hot 84°F (28.9°C). Weather in June »

July is a hot summer month in Altadena, California, with average temperature ranging between min 61.2°F (16.2°C) and max 89.4°F (31.9°C). In Altadena, the average high-temperature marginally rises, from a warm 84°F (28.9°C) in June, to a tropical 89.4°F (31.9°C). Weather in July »

August, the last month of the summer, in Altadena, is another hot month, with average temperature varying between 90.7°F (32.6°C) and 62.1°F (16.7°C). August is the warmest month, with an average high-temperature of 90.7°F (32.6°C) and an average low-temperature of 62.1°F (16.7°C). Weather in August »

September, the first month of the autumn, in Altadena, is still a tropical month, with temperature in the range of an average high of 88.5°F (31.4°C) and an average low of 60.6°F (15.9°C). In September, the average high-temperature is practically the same as in August - a still hot 88.5°F (31.4°C). Weather in September »

October, the same as September, is another warm autumn month in Altadena, California, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 55.2°F (12.9°C). In Altadena, the average high-temperature slightly decreases, from a tropical 88.5°F (31.4°C) in September, to a warm 82.6°F (28.1°C). Weather in October »

November, the last month of the autumn, in Altadena, is also a moderately hot month, with average temperature ranging between max 73.8°F (23.2°C) and min 48°F (8.9°C). In Altadena, the average high-temperature slightly decreases, from a warm 82.6°F (28.1°C) in October, to a still moderately hot 73.8°F (23.2°C). Weather in November »

December, the first month of the winter, in Altadena, is also an agreeable month, with average temperature varying between 68°F (20°C) and 44.1°F (6.7°C). In Altadena, California, the average high-temperature in December marginally drops, from a moderately hot 73.8°F (23.2°C) in November, to a pleasant 68°F (20°C). Weather in December »

What is the coldest month in Altadena?

With an average high-temperature of 67.8°F (19.9°C) and an average low-temperature of 44.2°F (6.8°C), January is the coldest month in Altadena.

How many days does it rain in Altadena?

In Altadena, during the entire year, the rain falls for 43.8 days.

What is the rainiest month in Altadena?

March has the most rainfall days of the year in Altadena. Rain falls for 7.7 days.

When are the longest days in Altadena?

With an average of 14.4h of daylight, June has the longest days of the year.

What is the driest month in Altadena?

The month with the least rainfall days in Altadena is July when the rain falls for 0.5 days.

What is the warmest month in Altadena?

With an average high-temperature of 90.7°F (32.6°C) and an average low-temperature of 62.1°F (16.7°C), August is the warmest month in Altadena, California.

What is the month with the shortest days in Altadena?

December has the shortest days of the year, with an average of 9.9h of daylight.
Average temperature - Altadena, CA
Average rainfall days - Altadena, CA

The month with the highest number of rainy days is March (7.7 days).
The month with the lowest number of rainy days is July (0.5 days).

Average daylight - Altadena, CA

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