August 21 - OCEANSIDE HARBOR - Weather History and Averages

Station: OCEANSIDE HARBOR (1981 to 1996)
Country: US
State: CA
Latitude: 33.22
Longitude: -117.4

High Temperatures

On August 21 in OCEANSIDE HARBOR the average high temperature is 68.0 °F (20.0 °C). The lowest recored high temperature was 65.8 °F (18.8 °C) in 1991 and the highest recored high temperature was 68.9 °F (20.5 °C) in 1990. The high temperature is usually^* between 66.7 °F (19.3 °C) and 69.4 °F (20.8 °C). About a quarter of the time, the high temperature is less than 66.7 °F (19.3 °C), and another quarter of the time, the high temperature is greater than and 69.4 °F (20.8 °C). About 95% of the time, the high temperature has been between 64.2 °F (17.9 °C) and 71.9 °F (22.2 °C).

Low Temperatures

On August 21 in OCEANSIDE HARBOR the average low temperature is 62.4 °F (16.9 °C). The lowest recored low temperature was 57.9 °F (14.4 °C) in 1990 and the lowest recored low temperature was 63.9 °F (17.7 °C) in 1991. The low temperature is usually^* between 60.3 °F (15.7 °C) and 64.5 °F (18.1 °C). About a quarter of the time, the low temperature is less than 60.3 °F (15.7 °C), and another quarter of the time, the low temperature is greater than and 64.5 °F (18.1 °C). About 95% of the time, the low temperature has been between 56.3 °F (13.5 °C) and 68.5 °F (20.3 °C).

Frost

On August 21 in OCEANSIDE HARBOR 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:

OCEANSIDE HARBOR — Integrated Surface Dataset (ISD) station ID: 722929 — from year 1985 to 1993

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