Fort Irwin
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Fort Irwin, CA

The first month of the autumn, September, is still a hot month in Fort Irwin, California, with average temperature fluctuating between 93°F (33.9°C) and 71.1°F (21.7°C).

Temperature

In September, the average high-temperature marginally drops, from a very hot 99°F (37.2°C) in August, to a tropical 93°F (33.9°C). In September, in Fort Irwin, California, the average low-temperature is 71.1°F (21.7°C).

Daylight

The average length of the day in September is 12.4h.

What is the temperature in September in Fort Irwin?

In September, in Fort Irwin, California, the average high-temperature is 93°F (33.9°C), and the average low-temperature is 71.1°F (21.7°C).

What is the average length of the day in September in Fort Irwin?

In September, the average length of the day in Fort Irwin, California, is 12.4h.
Average temperature in September - Fort Irwin, CA
  • Average high temperature in September: 93°F

The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in September: 71°F

Months with the highest average low temperature are July and August (76°F).
Coldest months (with the lowest average low temperature) are January and December (42°F).

Average daylight in September - Fort Irwin, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).