August 18 - LA JOLLA - Weather History and Averages

Station: LA JOLLA (2009 to 2025)
Country: US
State: CA
Latitude: 32.867
Longitude: -117.258

High Temperatures

On August 18 in LA JOLLA the average high temperature is 71.5 °F (21.9 °C). The lowest recored high temperature was 67.8 °F (19.9 °C) in 2023 and the highest recored high temperature was 78.1 °F (25.6 °C) in 2012. The high temperature is usually^* between 69.4 °F (20.8 °C) and 73.5 °F (23.1 °C). About a quarter of the time, the high temperature is less than 69.4 °F (20.8 °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 65.5 °F (18.6 °C) and 77.5 °F (25.3 °C).

Low Temperatures

On August 18 in LA JOLLA the average low temperature is 66.8 °F (19.3 °C). The lowest recored low temperature was 61.9 °F (16.6 °C) in 2011 and the lowest recored low temperature was 71.2 °F (21.8 °C) in 2020. The low temperature is usually^* between 65.0 °F (18.3 °C) and 68.6 °F (20.3 °C). About a quarter of the time, the low temperature is less than 65.0 °F (18.3 °C), and another quarter of the time, the low temperature is greater than and 68.6 °F (20.3 °C). About 95% of the time, the low temperature has been between 61.6 °F (16.4 °C) and 72.0 °F (22.2 °C).

Frost

On August 18 in LA JOLLA expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.

^{Usually* in this context means around 50% of the
time, assuming a normal distribution of values.}

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations:

LA JOLLA — Integrated Surface Dataset (ISD) station ID: 994018 — from year 2009 to 2025

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