Monthly weather forecast and climate
Gilroy, CA

A colorful sunset sky over the hilly region of Gilroy in California
A colorful sunset sky over the hilly region of Gilroy in California
The coldest months are January and December, with an average high-temperature of 60.1°F (15.6°C). January is the month with the most rainfall.
Weather in January »
The average high-temperature, is 64°F (17.8°C), while the average low-temperature is 41°F (5°C). In February, in Gilroy, the rain falls for 6 days.
Weather in February »
The average high-temperature, is 66.9°F (19.4°C), while the average low-temperature is 43°F (6.1°C). In Gilroy, during March, the rain falls for 6 days and regularly aggregates up to 3.2" (82.3mm) of precipitation.
Weather in March »
The average high-temperature, in April, is 72°F (22.2°C), while the average low-temperature is 44.1°F (6.7°C). In Gilroy, in April, during 3 rainfall days, 1.4" (35.6mm) of precipitation is typically accumulated.
Weather in April »
In Gilroy, the average high-temperature is 78.1°F (25.6°C), and the average low-temperature is 48.9°F (9.4°C). In Gilroy, in May, during 1 rainfall days, 0.4" (9.9mm) of precipitation is typically accumulated.
Weather in May »
In June, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 52°F (11.1°C). Throughout June, 0.1" (2.5mm) of precipitation is accumulated.
Weather in June »
July and August, with an average high-temperature of 88°F (31.1°C), are warmest months. Months with the least rainfall are July and August with 0.1" (1.3mm) of accumulated rain.
Weather in July »
July and August, with an average high-temperature of 88°F (31.1°C), are warmest months. July and August are months with the least rain when 0.1" (1.3mm) of rain is typically aggregated.
Weather in August »
In September, the average high-temperature is 86°F (30°C), and the average low-temperature is 53.1°F (11.7°C). In Gilroy, California, during September, the rain falls for 1 days and regularly aggregates up to 0.3" (8.1mm) of precipitation.
Weather in September »
The average high-temperature, is 79°F (26.1°C), while the average low-temperature is 48°F (8.9°C). In Gilroy, during October, the rain falls for 2 days and regularly aggregates up to 0.9" (22.9mm) of precipitation.
Weather in October »
The average high-temperature, is 68°F (20°C), while the average low-temperature is 42.1°F (5.6°C). In November, the rain falls for 4 days.
Weather in November »
January and December, with an average high-temperature of 60.1°F (15.6°C), are the coldest months. In December, the rain falls for 6 days.
Weather in December »

What are the coldest months in Gilroy?

The coldest months are January and December, with an average high-temperature of 60.1°F (15.6°C).

How many days does it rain in Gilroy?

Throughout the year, there are 36 rainfall days, and 20.8" (528.9mm) of precipitation is accumulated.

What is the wettest month in Gilroy?

January is the month with the most rainfall in Gilroy, California. Rain falls for 7 days and accumulates 4.7" (119.4mm) of precipitation.

When are the longest days in Gilroy?

The month with the longest days is June, with an average of 14.7h of daylight.

What are the warmest months in Gilroy?

Warmest months in Gilroy, California, are July and August, with an average high-temperature of 88°F (31.1°C).

What is the driest month in Gilroy?

July and August are months with the least rain in Gilroy, California, when 0.1" (1.3mm) of rain is typically aggregated.

What is the month with the shortest days in Gilroy?

With an average of 9.7h of daylight, December has the shortest days of the year.
Average rainfall - Gilroy, CA

The wettest month (with the highest rainfall) is January (4.7").
Driest months (with the lowest rainfall) are June, July and August (0.1").

Average rainfall days - Gilroy, CA
Average daylight - Gilroy, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

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