Monthly weather forecast and climate
Altadena, CA

What is the coldest month in Altadena?

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

How many days does it rain in Altadena?

Throughout the year, in Altadena, California, there are 43.8 rainfall days.

What is the wettest month in Altadena?

March is the month with the most rainfall days in Altadena, California. Rain falls for 7.7 days.

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?

August 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).
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).

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