- Latitude: 33.9
- Longitude: -117.25
High Temperatures
On March 20 in this location the average high temperature is 70.7 °F (21.5 °C). The lowest recored high temperature was 48.0 °F (8.9 °C) in 1979 and the highest recored high temperature was 95.0 °F (35.0 °C) in 1997. The high temperature is usually* between 64.5 °F (18.1 °C) and 76.8 °F (24.9 °C). About a quarter of the time, the high temperature is less than 64.5 °F (18.1 °C), and another quarter of the time, the high temperature is greater than and 76.8 °F (24.9 °C). About 95% of the time, the high temperature has been between 52.8 °F (11.5 °C) and 88.5 °F (31.4 °C).
Low Temperatures
On March 20 in this location the average low temperature is 44.6 °F (7.0 °C). The lowest recored low temperature was 28.9 °F (-1.7 °C) in 1987 and the lowest recored low temperature was 73.4 °F (23.0 °C) in 2001. The low temperature is usually* between 41.0 °F (5.0 °C) and 48.1 °F (9.0 °C). About a quarter of the time, the low temperature is less than 41.0 °F (5.0 °C), and another quarter of the time, the low temperature is greater than and 48.1 °F (9.0 °C). About 95% of the time, the low temperature has been between 34.3 °F (1.3 °C) and 54.9 °F (12.7 °C).
Frost
On March 20 in this location expect the temperatures to drop below freezing for a risk of frost about 0.8% 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 2025
- NORTON AAF — Weather Bureau Army Navy (WBAN): 23122 — from year 2015 to 2025
- RIVERSIDE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722869 — Weather Bureau Army Navy (WBAN): 03171 — from year 2006 to 2025
- SAN BERNARDINO INTL — Integrated Surface Dataset (ISD) station ID: 722866 — from year 2009 to 2025
- CORONA MUNICIPAL AIRPORT — Integrated Surface Dataset (ISD) station ID: 720333 — Weather Bureau Army Navy (WBAN): 53175 — from year 2011 to 2025
- HEMET RYAN — Integrated Surface Dataset (ISD) station ID: 720687 — from year 2020 to 2025
- CORONA MUNI — Integrated Surface Dataset (ISD) station ID: 720333 — from year 2007 to 2017
- SAN BERNARDINO INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 722866 — Weather Bureau Army Navy (WBAN): 23122 — from year 1943 to 2014
- RIVERSIDE MUNI — Integrated Surface Dataset (ISD) station ID: 722869 — from year 1999 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 2002 to 2004
- BEAUMONT — Integrated Surface Dataset (ISD) station ID: 722867 — from year 2000 to 2001
- BEAUMONT — Integrated Surface Dataset (ISD) station ID: 722867 — Weather Bureau Army Navy (WBAN): 23156 — from year 1973 to 1999
- BEAUMONT 1 E — Weather Bureau Army Navy (WBAN): 23156 — from year 1948 to 1953