Monthly weather forecast and climate
Gilroy, CA

Contents

A colorful sunset sky over the hilly region of Gilroy in California
A colorful sunset sky over the hilly region of Gilroy in California

Weather in January

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 »

Weather in February

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 »

Weather in March

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 »

Weather in April

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 »

Weather in May

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 »

Weather in June

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 »

Weather in July

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 »

Weather in August

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 »

Weather in September

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 »

Weather in October

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 »

Weather in November

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 »

Weather in December

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 »

FAQ

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 temperature
Gilroy, CA

Average temperature - Gilroy, CA

Warmest months (with the highest average high temperature) are July and August (88°F).
Months with the lowest average high temperature are January and December (60°F).

Months with the highest average low temperature are July and August (54°F).
Coldest months (with the lowest average low temperature) are January and December (37°F).

Average rainfall
Gilroy, CA

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 rainfall days - Gilroy, CA

The month with the highest number of rainy days is January (7 days).
Months with the lowest number of rainy days are June, July and August (0 days).

Average daylight
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).

°Celsius°Fahrenheit
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