Walnut Creek
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Walnut Creek, CA

Vast fields and forest slopes of the iconic Mount Diablo State Park within the Walnut Creek in California with partly cloudy skies above
Vast fields and forest slopes of the iconic Mount Diablo State Park within the Walnut Creek in California with partly cloudy skies above
January, the same as December, is a cool winter month in Walnut Creek, California, with average temperature ranging between min 36°F (2.2°C) and max 55°F (12.8°C). January is the coldest month, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 36°F (2.2°C). Weather in January »
February, the last month of the winter, in Walnut Creek, is an enjoyable month, with average temperature fluctuating between 61°F (16.1°C) and 37.9°F (3.3°C). In Walnut Creek, the average high-temperature marginally rises, from a fresh 55°F (12.8°C) in January, to an enjoyable 61°F (16.1°C). Weather in February »

The first month of the spring, March, is also an enjoyable month in Walnut Creek, California, with average temperature ranging between max 64.9°F (18.3°C) and min 39.9°F (4.4°C). In March, the average high-temperature is relatively the same as in February - a still comfortable 64.9°F (18.3°C). Weather in March »

April in Walnut Creek, California, is a pleasant spring month, with average temperature ranging between max 71.1°F (21.7°C) and min 43°F (6.1°C). In Walnut Creek, the average high-temperature in April slightly increases, from a comfortable 64.9°F (18.3°C) in March, to a pleasant 71.1°F (21.7°C). Weather in April »

The last month of the spring, May, is a warm month in Walnut Creek, California, with average temperature ranging between max 75.9°F (24.4°C) and min 46.9°F (8.3°C). In Walnut Creek, the average high-temperature is essentially the same as in April - a moderately hot 75.9°F (24.4°C). Weather in May »

The first month of the summer, June, is still a warm month in Walnut Creek, California, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 82.9°F (28.3°C). In Walnut Creek, the average high-temperature in June slightly increases, from a moderately hot 75.9°F (24.4°C) in May, to a still warm 82.9°F (28.3°C). Weather in June »

July in Walnut Creek, California, is a hot summer month, with average temperature varying between 54°F (12.2°C) and 88°F (31.1°C). With an average high-temperature of 88°F (31.1°C) and an average low-temperature of 54°F (12.2°C), July is the warmest month. Weather in July »

August, the last month of the summer, in Walnut Creek, is another tropical month, with average temperature varying between 54°F (12.2°C) and 87.1°F (30.6°C). In August, the average high-temperature is almost the same as in July - a still tropical 87.1°F (30.6°C). Weather in August »

September, the first month of the autumn, in Walnut Creek, is still a warm month, with average temperature ranging between min 52°F (11.1°C) and max 84°F (28.9°C). In September, the average high-temperature is relatively the same as in August - a warm 84°F (28.9°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Walnut Creek, California, with average temperature fluctuating between 77°F (25°C) and 46°F (7.8°C). In Walnut Creek, the average high-temperature marginally drops, from 84°F (28.9°C) in September, to a still moderately hot 77°F (25°C). Weather in October »

The last month of the autumn, November, is also an enjoyable month in Walnut Creek, California, with average temperature fluctuating between 66°F (18.9°C) and 41°F (5°C). In Walnut Creek, California, the average high-temperature in November drops, from a warm 77°F (25°C) in October, to a comfortable 66°F (18.9°C). Weather in November »

December, the first month of the winter, in Walnut Creek, is still a mild month, with average temperature ranging between max 55.9°F (13.3°C) and min 37°F (2.8°C). In December, the average high-temperature drops, from a comfortable 66°F (18.9°C) in November, to a mild 55.9°F (13.3°C). Weather in December »

What is the coldest month in Walnut Creek?

With an average high-temperature of 55°F (12.8°C) and an average low-temperature of 36°F (2.2°C), January is the coldest month.

How much does it rain in Walnut Creek?

Throughout the year, in Walnut Creek, California, there are 55 rainfall days, and 20.1" (511.1mm) of precipitation is accumulated.

What is the wettest month in Walnut Creek?

January is the month with the most rainfall. Rain falls for 10 days and accumulates 4.5" (114.8mm) of precipitation.

When are the longest days in Walnut Creek?

The month with the longest days in Walnut Creek, California, is June, with an average of 14.8h of daylight.

What is the warmest month in Walnut Creek?

July is the warmest month, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 54°F (12.2°C).

What is the driest month in Walnut Creek?

The month with the least rainfall is July when 0" (0.3mm) of precipitation is typically aggregated.

What is the month with the shortest days in Walnut Creek?

With an average of 9.6h of daylight, December has the shortest days of the year in Walnut Creek, California.
Average rainfall - Walnut Creek, CA
Average rainfall days - Walnut Creek, CA
Average daylight - Walnut Creek, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).