Mount Shasta
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Mount Shasta, CA

The serene Lake Siskiyou on the base of Mount Shasta in California, and a view of the planted forest, the far suspension bridge, and snowy mountain peak
The serene Lake Siskiyou on the base of Mount Shasta in California, and a view of the planted forest, the far suspension bridge, and snowy mountain peak
September, the first month of the autumn, in Mount Shasta, is still a warm month, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 43.9°F (6.6°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 83.7°F (28.7°C) in August, to a still moderately hot 77.4°F (25.2°C). In September, in Mount Shasta, the average low-temperature is 43.9°F (6.6°C).

Rainfall

In September, the rain falls for 3 days. In Mount Shasta, during the entire year, the rain falls for 98 days.

Snowfall

June through September are months without snowfall.

Daylight

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

What is the temperature in September in Mount Shasta?

The average high-temperature, in September, is 77.4°F (25.2°C), while the average low-temperature is 43.9°F (6.6°C).

How many days does it rain in September in Mount Shasta?

In Mount Shasta, California, during September, it is raining for 3 days.

Does it snow in Mount Shasta in September?

In Mount Shasta, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Mount Shasta?

In Mount Shasta snow does not fall in June through September.

What is the average length of the day in September in Mount Shasta?

The average length of the day in September in Mount Shasta is 12.5h.
Average temperature in September - Mount Shasta, CA
  • Average high temperature in September: 77.3°F

The warmest month (with the highest average high temperature) is July (87.9°F).
The month with the lowest average high temperature is January (43°F).

  • Average low temperature in September: 43.8°F

The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (25.8°F).

Average rainfall days in September - Mount Shasta, CA
  • Average rainfall days in September: 3 days

Months with the highest number of rainy days are January, March and December (13 days).
Months with the lowest number of rainy days are July and August (2 days).

Average snowfall in September - Mount Shasta, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (27.2").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in September - Mount Shasta, 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).