- Latitude: 33.45
- Longitude: -117.68
High Temperatures
On September 18 in this location the average high temperature is 78.8 °F (26.0 °C). The lowest recored high temperature was 65.8 °F (18.8 °C) in 1985 and the highest recored high temperature was 99.0 °F (37.2 °C) in 1979. The high temperature is usually* between 74.6 °F (23.7 °C) and 83.1 °F (28.4 °C). About a quarter of the time, the high temperature is less than 74.6 °F (23.7 °C), and another quarter of the time, the high temperature is greater than and 83.1 °F (28.4 °C). About 95% of the time, the high temperature has been between 66.6 °F (19.2 °C) and 91.1 °F (32.8 °C).
Low Temperatures
On September 18 in this location the average low temperature is 60.8 °F (16.0 °C). The lowest recored low temperature was 44.4 °F (6.9 °C) in 1943 and the lowest recored low temperature was 75.0 °F (23.9 °C) in 1984. The low temperature is usually* between 57.8 °F (14.3 °C) and 63.8 °F (17.6 °C). About a quarter of the time, the low temperature is less than 57.8 °F (14.3 °C), and another quarter of the time, the low temperature is greater than and 63.8 °F (17.6 °C). About 95% of the time, the low temperature has been between 52.1 °F (11.2 °C) and 69.4 °F (20.8 °C).
Frost
On September 18 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 1940 to 2024
- MARINE CORPS AIR STATION — Integrated Surface Dataset (ISD) station ID: 722926 — Weather Bureau Army Navy (WBAN): 03154 — from year 1973 to 2024
- MCOLF CAMP PENDLETON RED BEAC — Integrated Surface Dataset (ISD) station ID: 722928 — Weather Bureau Army Navy (WBAN): 00369 — from year 2015 to 2023
- MCOLF CAMP PENDLETON (RED BEA — Integrated Surface Dataset (ISD) station ID: 722928 — from year 2010 to 2012
- JOHN WAYNE ARPT ORA — Integrated Surface Dataset (ISD) station ID: 722977 — from year 2000 to 2003
- 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 1997
- OCEANSIDE HARBOR — Integrated Surface Dataset (ISD) station ID: 722929 — from year 1985 to 1994
- NEWPORT BEACH — Integrated Surface Dataset (ISD) station ID: 722973 — from year 1977 to 1993
- TUSTIN MCAF — Integrated Surface Dataset (ISD) station ID: 722915 — Weather Bureau Army Navy (WBAN): 93114 — from year 1976 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
- 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 1968 to 1971
- CAMP PENDLETON MCAS — Weather Bureau Army Navy (WBAN): 03154 — from year 1967 to 1970
- OCEANSIDE CAA AP — Weather Bureau Army Navy (WBAN): 23181 — from year 1949 to 1951