- Latitude: 33.33
- Longitude: -118.33
High Temperatures
On April 21 in this location the average high temperature is 65.7 °F (18.7 °C). The lowest recored high temperature was 52.0 °F (11.1 °C) in 2010 and the highest recored high temperature was 88.0 °F (31.1 °C) in 2009. The high temperature is usually* between 59.2 °F (15.1 °C) and 72.2 °F (22.4 °C). About a quarter of the time, the high temperature is less than 59.2 °F (15.1 °C), and another quarter of the time, the high temperature is greater than and 72.2 °F (22.4 °C). About 95% of the time, the high temperature has been between 46.8 °F (8.2 °C) and 84.7 °F (29.3 °C).
Low Temperatures
On April 21 in this location the average low temperature is 51.5 °F (10.8 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 2001 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2009. The low temperature is usually* between 47.0 °F (8.3 °C) and 55.9 °F (13.3 °C). About a quarter of the time, the low temperature is less than 47.0 °F (8.3 °C), and another quarter of the time, the low temperature is greater than and 55.9 °F (13.3 °C). About 95% of the time, the low temperature has been between 38.5 °F (3.6 °C) and 64.5 °F (18.0 °C).
Frost
On April 21 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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 2004 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 1990 to 1992
- SANTA CATALINA BUFFALO SPRING — Weather Bureau Army Navy (WBAN): 23191 — from year 1948 to 1953