- Latitude: 34.095
- Longitude: -117.235
High Temperatures
On December 4 in this location the average high temperature is 67.8 °F (19.9 °C). The lowest recored high temperature was 48.9 °F (9.4 °C) in 1948 and the highest recored high temperature was 87.1 °F (30.6 °C) in 1979. The high temperature is usually* between 62.7 °F (17.0 °C) and 73.0 °F (22.8 °C). About a quarter of the time, the high temperature is less than 62.7 °F (17.0 °C), and another quarter of the time, the high temperature is greater than and 73.0 °F (22.8 °C). About 95% of the time, the high temperature has been between 52.9 °F (11.6 °C) and 82.8 °F (28.2 °C).
Low Temperatures
On December 4 in this location the average low temperature is 42.3 °F (5.7 °C). The lowest recored low temperature was 21.9 °F (-5.6 °C) in 2011 and the lowest recored low temperature was 57.9 °F (14.4 °C) in 2014. The low temperature is usually* between 38.6 °F (3.7 °C) and 46.0 °F (7.8 °C). About a quarter of the time, the low temperature is less than 38.6 °F (3.7 °C), and another quarter of the time, the low temperature is greater than and 46.0 °F (7.8 °C). About 95% of the time, the low temperature has been between 31.6 °F (-0.2 °C) and 53.0 °F (11.7 °C).
Frost
On December 4 in this location expect the temperatures to drop below freezing for a risk of frost about 2.9% 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
- 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
- NORTON AAF — Weather Bureau Army Navy (WBAN): 23122 — from year 2014 to 2023
- 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
- BEAUMONT — Integrated Surface Dataset (ISD) station ID: 722867 — from year 2000 to 2000
- 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
- BEAUMONT 1 E — Weather Bureau Army Navy (WBAN): 23156 — from year 1948 to 1952