- Latitude: 33.75
- Longitude: -118.233
High Temperatures
On average, the day in September with the warmest high temperature in custom location is September 6 at an average of 82.3 °F (28.0 °C).
On average, the day in September with the coldest high temperature in custom location is September 19 at an average of 78.2 °F (25.7 °C).
Records
The warmest recorded high temperature in September in custom location was 113.0 °F (45.0 °C) on September 6 in the year 2024 at FULLERTON MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722976 — Weather Bureau Army Navy (WBAN): 03166 .
The coldest recorded high temperature in September in custom location was 61.9 °F (16.6 °C) on September 15 in the year 1976 at LONGBEACH RADIO — Integrated Surface Dataset (ISD) station ID: 722985 .
Low Temperatures
On average, the day in September with the warmest low temperature in custom location is September 2 at an average of 64.5 °F (18.1 °C).
On average, the day in September with the coldest low temperature in custom location is September 30 at an average of 61.1 °F (16.2 °C).
Records
The warmest recorded low temperature in custom location was 87.8 °F (31.0 °C) on September 6 in the year 2020 at ZAMPERINI FIELD AIRPORT — Integrated Surface Dataset (ISD) station ID: 722955 — Weather Bureau Army Navy (WBAN): 03174 .
The coldest recorded low temperature in custom location was 42.8 °F (6.0 °C) on September 9 in the year 2000 at FULLERTON MUNICIPAL — Integrated Surface Dataset (ISD) station ID: 722976 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: