- Latitude: 34.112
- Longitude: -117.688
High Temperatures
On average, the day in October with the warmest high temperature in custom location is October 1 at an average of 88.3 °F (31.3 °C).
On average, the day in October with the coldest high temperature in custom location is October 30 at an average of 77.8 °F (25.5 °C).
Records
The warmest recorded high temperature in October in custom location was 111.9 °F (44.4 °C) on October 1 in the year 2020 at CHINO AIRPORT — Integrated Surface Dataset (ISD) station ID: 722899 — Weather Bureau Army Navy (WBAN): 03179 .
The coldest recorded high temperature in October in custom location was 59.0 °F (15.0 °C) on October 25 in the year 2021 at BRACKETT FIELD AIRPORT — Integrated Surface Dataset (ISD) station ID: 722887 — Weather Bureau Army Navy (WBAN): 03180 .
Low Temperatures
On average, the day in October with the warmest low temperature in custom location is October 1 at an average of 58.6 °F (14.8 °C).
On average, the day in October with the coldest low temperature in custom location is October 31 at an average of 50.5 °F (10.3 °C).
Records
The warmest recorded low temperature in custom location was 82.4 °F (28.0 °C) on October 21 in the year 2024 at EL MONTE AIRPORT — Integrated Surface Dataset (ISD) station ID: 747043 — Weather Bureau Army Navy (WBAN): 03165 .
The coldest recorded low temperature in custom location was 30.0 °F (-1.1 °C) on October 30 in the year 1971 at ONTARIO INTERNATIONAL ARPT — Weather Bureau Army Navy (WBAN): 03102 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: