- Latitude: 33.128
- Longitude: -117.279
High Temperatures
On September 20 in this location the average high temperature is 77.8 °F (25.5 °C). The lowest recored high temperature was 63.5 °F (17.5 °C) in 2010 and the highest recored high temperature was 104.9 °F (40.5 °C) in 2015. The high temperature is usually* between 73.9 °F (23.3 °C) and 81.8 °F (27.7 °C). About a quarter of the time, the high temperature is less than 73.9 °F (23.3 °C), and another quarter of the time, the high temperature is greater than and 81.8 °F (27.7 °C). About 95% of the time, the high temperature has been between 66.3 °F (19.1 °C) and 89.3 °F (31.9 °C).
Low Temperatures
On September 20 in this location the average low temperature is 60.1 °F (15.6 °C). The lowest recored low temperature was 42.8 °F (6.0 °C) in 1999 and the lowest recored low temperature was 73.0 °F (22.8 °C) in 2015. The low temperature is usually* between 57.1 °F (13.9 °C) and 63.1 °F (17.3 °C). About a quarter of the time, the low temperature is less than 57.1 °F (13.9 °C), and another quarter of the time, the low temperature is greater than and 63.1 °F (17.3 °C). About 95% of the time, the low temperature has been between 51.3 °F (10.7 °C) and 68.8 °F (20.4 °C).
Frost
On September 20 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:
- MARINE CORPS AIR STATION — Integrated Surface Dataset (ISD) station ID: 722926 — Weather Bureau Army Navy (WBAN): 03154 — from year 1973 to 2024
- MARINE CORPS AIR STATION — Integrated Surface Dataset (ISD) station ID: 722931 — Weather Bureau Army Navy (WBAN): 93107 — from year 2005 to 2024
- MCCLELLAN-PALOMAR AIRPORT — Integrated Surface Dataset (ISD) station ID: 722927 — Weather Bureau Army Navy (WBAN): 03177 — from year 2006 to 2024
- OCEANSIDE MUNICIPAL ARPT — Integrated Surface Dataset (ISD) station ID: 722934 — Weather Bureau Army Navy (WBAN): 53121 — from year 2006 to 2024
- FALLBROOK 5 NE — Weather Bureau Army Navy (WBAN): 53151 — from year 2008 to 2024
- LA JOLLA — Integrated Surface Dataset (ISD) station ID: 994018 — from year 2009 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
- LA JOLLA — Integrated Surface Dataset (ISD) station ID: 997292 — from year 2005 to 2008
- MC CLELLAN PALOMAR — Integrated Surface Dataset (ISD) station ID: 722927 — from year 1973 to 2005
- OCEANSIDE MUNI — Integrated Surface Dataset (ISD) station ID: 722934 — from year 1999 to 2005
- SAN DIEGO/MIRAMAR N — Integrated Surface Dataset (ISD) station ID: 722930 — Weather Bureau Army Navy (WBAN): 93107 — from year 1989 to 2003
- OCEANSIDE HARBOR — Integrated Surface Dataset (ISD) station ID: 722929 — from year 1988 to 1995
- SAN DIEGO MIRAMAR NAS — Weather Bureau Army Navy (WBAN): 93107 — from year 1947 to 1988
- SOLANA BEACH — Integrated Surface Dataset (ISD) station ID: 722919 — from year 1986 to 1986
- CAMP PENDLETON MCAS — Weather Bureau Army Navy (WBAN): 03154 — from year 1966 to 1971
- OCEANSIDE CAA AP — Weather Bureau Army Navy (WBAN): 23181 — from year 1949 to 1951