- Latitude: 34.1
- Longitude: -117.25
High Temperatures
On November 19 in this location the average high temperature is 71.6 °F (22.0 °C). The lowest recored high temperature was 54.9 °F (12.7 °C) in 1973 and the highest recored high temperature was 91.9 °F (33.3 °C) in 2019. The high temperature is usually* between 66.3 °F (19.0 °C) and 77.0 °F (25.0 °C). About a quarter of the time, the high temperature is less than 66.3 °F (19.0 °C), and another quarter of the time, the high temperature is greater than and 77.0 °F (25.0 °C). About 95% of the time, the high temperature has been between 56.1 °F (13.4 °C) and 87.1 °F (30.6 °C).
Low Temperatures
On November 19 in this location the average low temperature is 44.8 °F (7.1 °C). The lowest recored low temperature was 20.8 °F (-6.2 °C) in 1994 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 1949. The low temperature is usually* between 40.9 °F (4.9 °C) and 48.6 °F (9.2 °C). About a quarter of the time, the low temperature is less than 40.9 °F (4.9 °C), and another quarter of the time, the low temperature is greater than and 48.6 °F (9.2 °C). About 95% of the time, the low temperature has been between 33.5 °F (0.9 °C) and 56.0 °F (13.3 °C).
Frost
On November 19 in this location expect the temperatures to drop below freezing for a risk of frost about 1.3% 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 1933 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 2023
- SAN BERNARDINO INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 722866 — Weather Bureau Army Navy (WBAN): 23122 — from year 1943 to 2013
- 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
- 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