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

September weather forecast and climate
Modesto, CA

The first month of the autumn, September, is also a hot month in Modesto, California, with average temperature ranging between min 59.2°F (15.1°C) and max 89.1°F (31.7°C).

Temperature

In Modesto, California, the average high-temperature in September is almost the same as in August - a still hot 89.1°F (31.7°C). In Modesto, the average low-temperature is 59.2°F (15.1°C).

Rainfall

In Modesto, 0.3" (6.6mm) of precipitation is typically accumulated. Throughout the year, 13.1" (332.9mm) of rain is accumulated.

Daylight

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

What is the temperature in September in Modesto?

In Modesto, in September, the average high-temperature is 89.1°F (31.7°C), and the average low-temperature is 59.2°F (15.1°C).

How much does it rain in Modesto in September?

Throughout September, in Modesto, California, 0.3" (6.6mm) of precipitation is accumulated.

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

In Modesto, California, the average length of the day in September is 12.4h.
Average temperature in September - Modesto, CA
  • Average high temperature in September: 89°F

The warmest month (with the highest average high temperature) is July (95.1°F).
The month with the lowest average high temperature is January (55.4°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (39.8°F).

Average rainfall in September - Modesto, CA
  • Average rainfall in September: 0.3"

The wettest month (with the highest rainfall) is January (2.6").
Driest months (with the lowest rainfall) are July and August (0").

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

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).