Monthly weather forecast and climate
Clearlake, CA

A scenic view of the reflection and a long footbridge over the marina in Clearlake, California
A scenic view of the reflection and a long footbridge over the marina in Clearlake, California
January and December, with an average high-temperature of 55°F (12.8°C), are the coldest months. The month with the most rainfall is January when 6.4" (163.8mm) of precipitation is typically aggregated.
Weather in January »
The average high-temperature, is 57.9°F (14.4°C), while the average low-temperature is 34°F (1.1°C). In Clearlake, 5.9" (150.1mm) of precipitation is typically accumulated.
Weather in February »
The average high-temperature, is 62.1°F (16.7°C), while the average low-temperature is 36°F (2.2°C). Throughout March, 4.5" (115.1mm) of precipitation is accumulated.
Weather in March »
In April, the average high-temperature is 66.9°F (19.4°C), and the average low-temperature is 39°F (3.9°C). In Clearlake, in April, 1.7" (43.9mm) of precipitation is typically accumulated.
Weather in April »
In May, the average high-temperature is 75°F (23.9°C), and the average low-temperature is 45°F (7.2°C). During May, Clearlake regularly aggregates up to 1.1" (28.7mm) of precipitation.
Weather in May »
In June, in Clearlake, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 51.1°F (10.6°C). Throughout June, 0.2" (5.6mm) of precipitation is accumulated.
Weather in June »
July is the warmest month, with an average high-temperature of 91.9°F (33.3°C) and an average low-temperature of 55°F (12.8°C). The month with the least rainfall is July when 0" (0.5mm) of precipitation is typically aggregated.
Weather in July »
In Clearlake, California, in August, the average high-temperature is 90°F (32.2°C), and the average low-temperature is 53.1°F (11.7°C). During August, Clearlake regularly aggregates up to 0.1" (2.5mm) of precipitation.
Weather in August »
In Clearlake, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 48.9°F (9.4°C). In Clearlake, in September, 0.4" (10.9mm) of precipitation is typically accumulated.
Weather in September »
The average high-temperature, in October, is 75°F (23.9°C), while the average low-temperature is 42.1°F (5.6°C). During October, Clearlake regularly aggregates up to 1.4" (36.6mm) of precipitation.
Weather in October »
In November, the average high-temperature is 62.1°F (16.7°C), and the average low-temperature is 35.1°F (1.7°C). In Clearlake, California, 3.5" (89.2mm) of precipitation is typically accumulated.
Weather in November »
January and December, with an average high-temperature of 55°F (12.8°C), are the coldest months. In Clearlake, in December, 5.9" (151.1mm) of precipitation is typically accumulated.
Weather in December »

What are the coldest months in Clearlake?

January and December, with an average high-temperature of 55°F (12.8°C), are the coldest months in Clearlake, California.

How much does it rain in Clearlake?

During the entire year, Clearlake aggregates up to 31.4" (798mm) of precipitation.

What is the rainiest month in Clearlake?

The month with the most rainfall in Clearlake is January when 6.4" (163.8mm) of precipitation is typically aggregated.

When are the longest days in Clearlake?

June has the longest days of the year in Clearlake, with an average of 14.9h of daylight.

What is the warmest month in Clearlake?

July is the warmest month, with an average high-temperature of 91.9°F (33.3°C) and an average low-temperature of 55°F (12.8°C).

What is the driest month in Clearlake?

July is the month with the least rainfall in Clearlake, with 0" (0.5mm) of accumulated precipitation.

What is the month with the shortest days in Clearlake?

The month with the shortest days is December, with an average of 9.5h of daylight.
Average rainfall - Clearlake, CA
Average daylight - Clearlake, CA

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.5h).

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