- Latitude: 34.067
- Longitude: -117.65
High Temperatures
On average, the day in May with the warmest high temperature in custom location is May 29 at an average of 82.0 °F (27.8 °C).
On average, the day in May with the coldest high temperature in custom location is May 7 at an average of 77.2 °F (25.1 °C).
Records
The warmest recorded high temperature in May in custom location was 107.1 °F (41.7 °C) on May 29 in the year 1984 at ONTARIO — Integrated Surface Dataset (ISD) station ID: 722865 — Weather Bureau Army Navy (WBAN): 93180 .
The coldest recorded high temperature in May in custom location was 55.0 °F (12.8 °C) on May 2 in the year 1955 at ONTARIO — Integrated Surface Dataset (ISD) station ID: 722865 — Weather Bureau Army Navy (WBAN): 93180 .
Low Temperatures
On average, the day in May with the warmest low temperature in custom location is May 31 at an average of 56.0 °F (13.3 °C).
On average, the day in May with the coldest low temperature in custom location is May 1 at an average of 52.0 °F (11.1 °C).
Records
The warmest recorded low temperature in custom location was 82.0 °F (27.8 °C) on May 14 in the year 2014 at ONTARIO INTERNATIONAL ARPT — Integrated Surface Dataset (ISD) station ID: 747040 — Weather Bureau Army Navy (WBAN): 03102 .
The coldest recorded low temperature in custom location was 32.0 °F (0.0 °C) on May 15 in the year 2023 at BRACKETT FIELD AIRPORT — Integrated Surface Dataset (ISD) station ID: 722887 — Weather Bureau Army Navy (WBAN): 03180 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: