- Latitude: 33.6
- Longitude: -117.88
High Temperatures
On March 21 in this location the average high temperature is 69.1 °F (20.6 °C). The lowest recored high temperature was 54.9 °F (12.7 °C) in 1991 and the highest recored high temperature was 91.9 °F (33.3 °C) in 1988. The high temperature is usually* between 64.7 °F (18.2 °C) and 73.5 °F (23.1 °C). About a quarter of the time, the high temperature is less than 64.7 °F (18.2 °C), and another quarter of the time, the high temperature is greater than and 73.5 °F (23.1 °C). About 95% of the time, the high temperature has been between 56.4 °F (13.5 °C) and 81.8 °F (27.7 °C).
Low Temperatures
On March 21 in this location the average low temperature is 50.4 °F (10.2 °C). The lowest recored low temperature was 2.8 °F (-16.2 °C) in 1995 and the lowest recored low temperature was 72.0 °F (22.2 °C) in 1965. The low temperature is usually* between 47.4 °F (8.6 °C) and 53.4 °F (11.9 °C). About a quarter of the time, the low temperature is less than 47.4 °F (8.6 °C), and another quarter of the time, the low temperature is greater than and 53.4 °F (11.9 °C). About 95% of the time, the low temperature has been between 41.8 °F (5.5 °C) and 59.0 °F (15.0 °C).
Frost
On March 21 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:
- J. WAYNE APT-ORANGE CO APT — Integrated Surface Dataset (ISD) station ID: 722977 — Weather Bureau Army Navy (WBAN): 93184 — from year 1941 to 2025
- LONG BEACH / DAUGHERTY FIELD — Integrated Surface Dataset (ISD) station ID: 722970 — Weather Bureau Army Navy (WBAN): 23129 — from year 1943 to 2025
- LOS ALAMITOS AAF AIRPORT — Integrated Surface Dataset (ISD) station ID: 722975 — Weather Bureau Army Navy (WBAN): 53141 — from year 2006 to 2025
- LOS ALAMITOS AAF — Integrated Surface Dataset (ISD) station ID: 722975 — from year 2000 to 2005
- JOHN WAYNE ARPT ORA — Integrated Surface Dataset (ISD) station ID: 722977 — from year 2000 to 2003
- LOS ALAMITOS AAF — Integrated Surface Dataset (ISD) station ID: 722975 — Weather Bureau Army Navy (WBAN): 93106 — from year 1983 to 1999
- EL TORO MCAS — Integrated Surface Dataset (ISD) station ID: 690140 — Weather Bureau Army Navy (WBAN): 93101 — from year 1989 to 1998
- FOB DWYER — Integrated Surface Dataset (ISD) station ID: 690160 — Weather Bureau Army Navy (WBAN): 93114 — from year 1990 to 1998
- NEWPORT BEACH — Integrated Surface Dataset (ISD) station ID: 722973 — from year 1980 to 1996
- TUSTIN MCAF — Integrated Surface Dataset (ISD) station ID: 722915 — Weather Bureau Army Navy (WBAN): 93114 — from year 1976 to 1989
- LONG BEACH — Integrated Surface Dataset (ISD) station ID: 722974 — from year 1977 to 1989
- SAN CLEMENTE — Integrated Surface Dataset (ISD) station ID: 722933 — from year 1989 to 1989
- EL TORO MCAS — Weather Bureau Army Navy (WBAN): 93101 — from year 1945 to 1988
- EL TORO(USMC) — Integrated Surface Dataset (ISD) station ID: 722908 — from year 1973 to 1988
- HUNTINGTON BEACH — Integrated Surface Dataset (ISD) station ID: 722978 — from year 1973 to 1976
- MARINE CORPS AIR STATION — Weather Bureau Army Navy (WBAN): 93114 — from year 1945 to 1975
- SANTA ANA — Weather Bureau Army Navy (WBAN): 93184 — from year 1969 to 1972
- LOS ALAMITOS — Weather Bureau Army Navy (WBAN): 93106 — from year 1946 to 1971