- Latitude: 33.933
- Longitude: -116.967
High Temperatures
On May 31 in this location the average high temperature is 81.1 °F (27.3 °C). The lowest recored high temperature was 58.3 °F (14.6 °C) in 1967 and the highest recored high temperature was 102.2 °F (39.0 °C) in 2025. The high temperature is usually* between 75.2 °F (24.0 °C) and 86.9 °F (30.5 °C). About a quarter of the time, the high temperature is less than 75.2 °F (24.0 °C), and another quarter of the time, the high temperature is greater than and 86.9 °F (30.5 °C). About 95% of the time, the high temperature has been between 64.2 °F (17.9 °C) and 97.9 °F (36.6 °C).
Low Temperatures
On May 31 in this location the average low temperature is 53.4 °F (11.9 °C). The lowest recored low temperature was 30.2 °F (-1.0 °C) in 2008 and the lowest recored low temperature was 78.1 °F (25.6 °C) in 1984. The low temperature is usually* between 50.1 °F (10.1 °C) and 56.6 °F (13.7 °C). About a quarter of the time, the low temperature is less than 50.1 °F (10.1 °C), and another quarter of the time, the low temperature is greater than and 56.6 °F (13.7 °C). About 95% of the time, the low temperature has been between 43.9 °F (6.6 °C) and 62.8 °F (17.1 °C).
Frost
On May 31 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 1933 to 2025
- NORTON AAF — Weather Bureau Army Navy (WBAN): 23122 — from year 2015 to 2025
- SAN BERNARDINO INTL — Integrated Surface Dataset (ISD) station ID: 722866 — from year 2009 to 2025
- HEMET RYAN — Integrated Surface Dataset (ISD) station ID: 720687 — from year 2020 to 2025
- BIG BEAR CITY AIRPORT — Integrated Surface Dataset (ISD) station ID: A06854 — Weather Bureau Army Navy (WBAN): 00115 — from year 2020 to 2025
- WARNER SPRINGS GLIDERPORT — Integrated Surface Dataset (ISD) station ID: 720165 — from year 2007 to 2013
- RIVERSIDE/MARCH AFB — Integrated Surface Dataset (ISD) station ID: 722860 — from year 2000 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
- SAN BERNARDINO INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 722866 — Weather Bureau Army Navy (WBAN): 23122 — from year 1943 to 1993
- BEAUMONT 1 E — Weather Bureau Army Navy (WBAN): 23156 — from year 1948 to 1953