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

September weather forecast and climate
Porterville, CA

The first month of the autumn, September, is still a hot month in Porterville, California, with average temperature fluctuating between 56.1°F (13.4°C) and 92.8°F (33.8°C).

Temperature

In September, the average high-temperature marginally drops, from a torrid 98.2°F (36.8°C) in August, to a tropical 92.8°F (33.8°C). In Porterville, the average low-temperature is 56.1°F (13.4°C).

Rainfall

In September, in Porterville, the rain falls for 1.7 days. Throughout September, 0.4" (8.9mm) of precipitation is accumulated. Throughout the year, in Porterville, there are 38.5 rainfall days, and 12.1" (306.7mm) of precipitation is accumulated.

Daylight

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

What is the temperature in September in Porterville?

The average high-temperature, in September, in Porterville, is 92.8°F (33.8°C), while the average low-temperature is 56.1°F (13.4°C).

How many days does it rain in September in Porterville?

In Porterville, in September, it is raining for 1.7 days, with typically 0.4" (8.9mm) of accumulated precipitation.

How many hours of daylight does Porterville have in September?

In September, the average length of the day in Porterville is 12.4h.
Average temperature in September - Porterville, CA
  • Average high temperature in September: 92.9°F

The warmest month (with the highest average high temperature) is July (100.5°F).
The month with the lowest average high temperature is January (57.9°F).

  • Average low temperature in September: 56.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average rainfall in September - Porterville, CA
  • Average rainfall in September: 0.4"

The wettest month (with the highest rainfall) is March (2.3").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in September - Porterville, CA
  • Average rainfall days in September: 1.7 days

The month with the highest number of rainy days is January (7.2 days).
Months with the lowest number of rainy days are July and August (0.3 days).

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

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).