San Bernardino
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
San Bernardino, CA

Scenic settlement spot on the foot of the iconic San Bernardino Mountains in California, with a view of the snow peaks of the San Gorgiono mountains
Scenic settlement spot on the foot of the iconic San Bernardino Mountains in California, with a view of the snow peaks of the San Gorgiono mountains
January in San Bernardino, California, is a pleasant winter month, with average temperature ranging between max 68.4°F (20.2°C) and min 42.1°F (5.6°C). In January, the average high-temperature is relatively the same as in December - a pleasant 68.4°F (20.2°C). Weather in January »
The last month of the winter, February, is also an agreeable month in San Bernardino, California, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 69.3°F (20.7°C). In San Bernardino, the average high-temperature in February is essentially the same as in January - a still agreeable 69.3°F (20.7°C). Weather in February »

March, the first month of the spring, in San Bernardino, is also an agreeable month, with average temperature varying between 72.7°F (22.6°C) and 45.7°F (7.6°C). In San Bernardino, the average high-temperature is practically the same as in February - a still pleasant 72.7°F (22.6°C). Weather in March »

April in San Bernardino, California, is a warm spring month, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 77.7°F (25.4°C). In April, the average high-temperature is practically the same as in March - a warm 77.7°F (25.4°C). Weather in April »

The last month of the spring, May, is also a moderately hot month in San Bernardino, California, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 83.5°F (28.6°C). In San Bernardino, the average high-temperature marginally rises, from a warm 77.7°F (25.4°C) in April, to a still moderately hot 83.5°F (28.6°C). Weather in May »

June, the first month of the summer, in San Bernardino, is a hot month, with temperature in the range of an average high of 90.1°F (32.3°C) and an average low of 58.5°F (14.7°C). In San Bernardino, the average high-temperature marginally rises, from a moderately hot 83.5°F (28.6°C) in May, to a tropical 90.1°F (32.3°C). Weather in June »

July is a very hot summer month in San Bernardino, California, with average temperature varying between 96.3°F (35.7°C) and 63.7°F (17.6°C). In San Bernardino, the average high-temperature in July slightly increases, from a tropical 90.1°F (32.3°C) in June, to a very hot 96.3°F (35.7°C). Weather in July »

The last month of the summer, August, is another very hot month in San Bernardino, California, with average temperature ranging between min 64.2°F (17.9°C) and max 97.3°F (36.3°C). The warmest month is August, with an average high-temperature of 97.3°F (36.3°C) and an average low-temperature of 64.2°F (17.9°C). Weather in August »

September, the first month of the autumn, in San Bernardino, is also a hot month, with temperature in the range of an average high of 92.8°F (33.8°C) and an average low of 60.8°F (16°C). In San Bernardino, the average high-temperature in September is almost the same as in August - a tropical 92.8°F (33.8°C). Weather in September »

October, the same as September, is a moderately hot autumn month in San Bernardino, California, with average temperature varying between 54.1°F (12.3°C) and 84°F (28.9°C). In October, the average high-temperature slightly decreases, from a tropical 92.8°F (33.8°C) in September, to a warm 84°F (28.9°C). Weather in October »

The last month of the autumn, November, is another warm month in San Bernardino, California, with average temperature ranging between max 74.3°F (23.5°C) and min 45.5°F (7.5°C). In San Bernardino, the average high-temperature in November drops, from a warm 84°F (28.9°C) in October, to a still moderately hot 74.3°F (23.5°C). Weather in November »

The first month of the winter, December, is still a comfortable month in San Bernardino, California, with average temperature ranging between min 41.2°F (5.1°C) and max 67.1°F (19.5°C). With an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 41.2°F (5.1°C), December is the coldest month. Weather in December »

How much does it rain in San Bernardino?

In San Bernardino, California, during the entire year, the rain falls for 38.3 days and collects up to 16" (406.8mm) of precipitation.

What is the rainiest month in San Bernardino?

February is the month with the most rainfall. Rain falls for 7.2 days and accumulates 4.1" (103.1mm) of precipitation.

When are the longest days in San Bernardino?

The month with the longest days in San Bernardino is June, with an average of 14.4h of daylight.

What is the driest month in San Bernardino?

July is the month with the least rainfall. Rain falls for 0.5 days and accumulates 0" (0.8mm) of precipitation.

What is the warmest month in San Bernardino?

The warmest month is August, with an average high-temperature of 97.3°F (36.3°C) and an average low-temperature of 64.2°F (17.9°C).

What is the coldest month in San Bernardino?

With an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 41.2°F (5.1°C), December is the coldest month.

What is the month with the shortest days in San Bernardino?

The month with the shortest days is December, with an average of 9.9h of daylight.
Average temperature - San Bernardino, CA
Average rainfall - San Bernardino, CA
Average rainfall days - San Bernardino, CA

The month with the highest number of rainy days is February (7.2 days).
Months with the lowest number of rainy days are July and August (0.5 days).

Average daylight - San Bernardino, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).