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

September weather forecast and climate
Barstow, CA

The vast desert region of Mojave, with the modern section of the Barstow residential community in California
The vast desert region of Mojave, with the modern section of the Barstow residential community in California
September, the first month of the autumn, in Barstow, is still a torrid month, with average temperature fluctuating between 96.1°F (35.6°C) and 66°F (18.9°C).

Temperature

In September, the average high-temperature marginally drops, from a torrid 102.9°F (39.4°C) in August, to a still sweltering 96.1°F (35.6°C). In Barstow, the average low-temperature is 66°F (18.9°C).

Rainfall

During September, Barstow regularly aggregates up to 0.2" (5.3mm) of precipitation. Throughout the year, in Barstow, 4.1" (104.6mm) of rain is accumulated.

Daylight

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

What is the temperature in September in Barstow?

In September, in Barstow, California, the average high-temperature is 96.1°F (35.6°C), and the average low-temperature is 66°F (18.9°C).

How much does it rain in Barstow in September?

Throughout September, in Barstow, 0.2" (5.3mm) of precipitation is accumulated.

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

In September, the average length of the day is 12.4h.
Average temperature in September - Barstow, CA
  • Average high temperature in September: 96°F

The warmest month (with the highest average high temperature) is July (105°F).
The month with the lowest average high temperature is December (60°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (74°F).
The coldest month (with the lowest average low temperature) is December (36°F).

Average rainfall in September - Barstow, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is February (0.7").
Driest months (with the lowest rainfall) are May and June (0.1").

Average daylight in September - Barstow, 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).