- Latitude: 34.1
- Longitude: -117.25
High Temperatures
On October 5 in this location the average high temperature is 85.0 °F (29.4 °C). The lowest recored high temperature was 62.6 °F (17.0 °C) in 2010 and the highest recored high temperature was 107.1 °F (41.7 °C) in 1987. The high temperature is usually* between 79.3 °F (26.3 °C) and 90.7 °F (32.6 °C). About a quarter of the time, the high temperature is less than 79.3 °F (26.3 °C), and another quarter of the time, the high temperature is greater than and 90.7 °F (32.6 °C). About 95% of the time, the high temperature has been between 68.4 °F (20.2 °C) and 101.6 °F (38.7 °C).
Low Temperatures
On October 5 in this location the average low temperature is 55.5 °F (13.1 °C). The lowest recored low temperature was 38.7 °F (3.7 °C) in 2009 and the lowest recored low temperature was 79.0 °F (26.1 °C) in 1980. The low temperature is usually* between 52.0 °F (11.1 °C) and 59.0 °F (15.0 °C). About a quarter of the time, the low temperature is less than 52.0 °F (11.1 °C), and another quarter of the time, the low temperature is greater than and 59.0 °F (15.0 °C). About 95% of the time, the low temperature has been between 45.4 °F (7.4 °C) and 65.7 °F (18.7 °C).
Frost
On October 5 in this location expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- MARCH AIR RESERVE BASE — Integrated Surface Dataset (ISD) station ID: 722860 — Weather Bureau Army Navy (WBAN): 23119 — from year 1934 to 2024
- NORTON AAF — Weather Bureau Army Navy (WBAN): 23122 — from year 2014 to 2024
- ONTARIO INTERNATIONAL ARPT — Integrated Surface Dataset (ISD) station ID: 747040 — Weather Bureau Army Navy (WBAN): 03102 — from year 2005 to 2024
- RIVERSIDE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722869 — Weather Bureau Army Navy (WBAN): 03171 — from year 2006 to 2024
- SAN BERNARDINO INTL — Integrated Surface Dataset (ISD) station ID: 722866 — from year 2009 to 2024
- RIVERSIDE MUNI — Integrated Surface Dataset (ISD) station ID: 722869 — from year 1998 to 2005
- RIVERSIDE/MARCH AFB — Integrated Surface Dataset (ISD) station ID: 722860 — from year 2000 to 2004
- ONTARIO INTL ARPT — Integrated Surface Dataset (ISD) station ID: 747040 — from year 2001 to 2004
- ONTARIO — Integrated Surface Dataset (ISD) station ID: 722865 — from year 2000 to 2000
- BEAUMONT — Integrated Surface Dataset (ISD) station ID: 722867 — from year 2000 to 2000
- ONTARIO — Integrated Surface Dataset (ISD) station ID: 722865 — Weather Bureau Army Navy (WBAN): 93180 — from year 1943 to 1999
- BEAUMONT — Integrated Surface Dataset (ISD) station ID: 722867 — Weather Bureau Army Navy (WBAN): 23156 — from year 1973 to 1999
- SAN BERNARDINO INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 722866 — Weather Bureau Army Navy (WBAN): 23122 — from year 1943 to 1992
- ONTARIO INTERNATIONAL ARPT — Weather Bureau Army Navy (WBAN): 03102 — from year 1968 to 1972
- BEAUMONT 1 E — Weather Bureau Army Navy (WBAN): 23156 — from year 1948 to 1952