- Latitude: 33.405
- Longitude: -118.416
High Temperatures
On May 21 in this location the average high temperature is 67.8 °F (19.9 °C). The lowest recored high temperature was 57.0 °F (13.9 °C) in 2018 and the highest recored high temperature was 87.1 °F (30.6 °C) in 1967. The high temperature is usually* between 61.4 °F (16.3 °C) and 74.3 °F (23.5 °C). About a quarter of the time, the high temperature is less than 61.4 °F (16.3 °C), and another quarter of the time, the high temperature is greater than and 74.3 °F (23.5 °C). About 95% of the time, the high temperature has been between 49.0 °F (9.5 °C) and 86.6 °F (30.3 °C).
Low Temperatures
On May 21 in this location the average low temperature is 53.9 °F (12.2 °C). The lowest recored low temperature was 46.9 °F (8.3 °C) in 1948 and the lowest recored low temperature was 68.0 °F (20.0 °C) in 1967. The low temperature is usually* between 50.0 °F (10.0 °C) and 57.8 °F (14.4 °C). About a quarter of the time, the low temperature is less than 50.0 °F (10.0 °C), and another quarter of the time, the low temperature is greater than and 57.8 °F (14.4 °C). About 95% of the time, the low temperature has been between 42.4 °F (5.8 °C) and 65.3 °F (18.5 °C).
Frost
On May 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:
- CATALINA AIRPORT — Integrated Surface Dataset (ISD) station ID: 722920 — Weather Bureau Army Navy (WBAN): 23191 — from year 1981 to 2025
- AVALON/CATALINA — Integrated Surface Dataset (ISD) station ID: 722920 — from year 2001 to 2003
- SANTA CATALINA ISLAND — Integrated Surface Dataset (ISD) station ID: 722924 — from year 1991 to 1992
- SANTA CATALINA BUFFALO SPRING — Weather Bureau Army Navy (WBAN): 23191 — from year 1948 to 1967