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

September weather forecast and climate
Alturas, CA

The first month of the autumn, September, is also a moderately hot month in Alturas, California, with average temperature fluctuating between 35.4°F (1.9°C) and 79.2°F (26.2°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 87.3°F (30.7°C) in August, to a moderately hot 79.2°F (26.2°C). The average low-temperature, in September, is 35.4°F (1.9°C).

Rainfall

In Alturas, in September, it is raining for 3 days, with typically 0.5" (12.7mm) of accumulated precipitation. In Alturas, California, during the entire year, the rain falls for 78 days and collects up to 12.3" (312.4mm) of precipitation.

Snowfall

Months with snowfall in Alturas are January through May, September through December. September is the first month it typically snows. Throughout September, Alturas receives 0.1" (2.5mm) of snow. Throughout the year, in Alturas, 30.2" (767.1mm) of snow is accumulated.

Daylight

In September, the average length of the day in Alturas is 12.5h.

What is the temperature in September in Alturas?

In Alturas, California, in September, the average high-temperature is 79.2°F (26.2°C), and the average low-temperature is 35.4°F (1.9°C).

How many days does it rain in September in Alturas?

In Alturas, California, during September, the rain falls for 3 days and regularly aggregates up to 0.5" (12.7mm) of precipitation.

When does it start to snow in Alturas?

September is the first month it typically snows in Alturas. Throughout September, Alturas receives 0.1" (2.5mm) of snow.

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

The average length of the day in September is 12.5h.
Average temperature in September - Alturas, CA
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.6°F).

  • Average low temperature in September: 35.4°F

The month with the highest average low temperature is July (44.3°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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

Wettest months (with the highest rainfall) are January and December (1.5").
Driest months (with the lowest rainfall) are July and August (0.3").

Average rainfall days in September - Alturas, CA
  • Average rainfall days in September: 3 days

The month with the highest number of rainy days is January (10 days).
Months with the lowest number of rainy days are July and August (2 days).

Average snowfall in September - Alturas, CA
  • Average snowfall in September: 0.1"

The month with the highest snowfall is January (7.7").
Months with the lowest snowfall are June, July and August (0").

Average daylight in September - Alturas, CA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.2h).