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

May weather forecast and climate
Altadena, CA

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).

Temperature

In May, the average high-temperature is practically the same as in April - a still moderately hot 78.3°F (25.7°C). In Altadena, in May, the average low-temperature is 53.4°F (11.9°C).

Rainfall

In Altadena, during May, it is raining for 2.8 days. In Altadena, California, during the entire year, the rain falls for 43.8 days.

Daylight

The average length of the day in May is 14h.

What is the temperature in May in Altadena?

In Altadena, in May, the average high-temperature is 78.3°F (25.7°C), and the average low-temperature is 53.4°F (11.9°C).

How many days does it rain in May in Altadena?

In May, in Altadena, the rain falls for 2.8 days.

How many hours of daylight does Altadena have in May?

In Altadena, the average length of the day in May is 14h.
Average temperature in May - Altadena, CA
  • Average high temperature in May: 78.2°F

The warmest month (with the highest average high temperature) is August (90.6°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in May: 53.5°F

The month with the highest average low temperature is August (62°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).

Average rainfall days in May - Altadena, CA
  • Average rainfall days in May: 2.8 days

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 in May - Altadena, CA
  • Average daylight in May: 14h

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