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

September weather forecast and climate
Alta, CA

September, the first month of the autumn, in Alta, is still a hot month, with average temperature varying between 57.9°F (14.4°C) and 87.1°F (30.6°C).

Temperature

In Alta, California, the average high-temperature is almost the same as in August - a still hot 87.1°F (30.6°C). In September, the average low-temperature is 57.9°F (14.4°C).

Rainfall

During September, Alta regularly aggregates up to 0.5" (11.7mm) of precipitation. Throughout the year, 22" (559.5mm) of rain is accumulated.

Daylight

In Alta, the average length of the day in September is 12.4h.

What is the temperature in September in Alta?

In September, in Alta, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 57.9°F (14.4°C).

How much does it rain in Alta in September?

Throughout September, 0.5" (11.7mm) of precipitation is accumulated.

What is the average length of the day in September in Alta?

In September, the average length of the day is 12.4h.
Average temperature in September - Alta, CA
  • Average high temperature in September: 87°F

The warmest month (with the highest average high temperature) is July (94°F).
Months with the lowest average high temperature are January and December (53°F).

  • Average low temperature in September: 58°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (38°F).

Average rainfall in September - Alta, CA
  • Average rainfall in September: 0.5"

The wettest month (with the highest rainfall) is January (4.1").
Driest months (with the lowest rainfall) are July and August (0.1").

Average daylight in September - Alta, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).