Garden Grove, CA Weather by Month and Climate Averages

How much rain does Garden Grove get?

Garden Grove gets 12.5 in of precipitation in an average year, spread over about 35 days with measurable rain. That is fewer rainy days than 90% of the US.

February is the wettest month, with 3.2 in. August is the driest, with 0.0 in. February has the most rainy days, about 7.

The longest dry spell in the last five years lasted 111 days, to September 8, 2022.

See where Garden Grove ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in California.

Garden Grove weather by month

Garden Grove weather in January

In January, Garden Grove averages a high of 70°F and a low of 48°F. It gets 2.9 in of precipitation over about 6 rainy days. The sun is out about 53% of daylight hours. The January record high is 96°F (2003) and the record low is 16°F (1989). January is one of the most comfortable months to visit.

Garden Grove weather in February

In February, Garden Grove averages a high of 70°F and a low of 49°F. It gets 3.2 in of precipitation over about 7 rainy days. The sun is out about 60% of daylight hours. The February record high is 95°F (2016) and the record low is 22°F (1989).

Garden Grove weather in March

In March, Garden Grove averages a high of 72°F and a low of 51°F. It gets 1.7 in of precipitation over about 5 rainy days. The sun is out about 52% of daylight hours. The March record high is 100°F (2026) and the record low is 36°F (1971). March is one of the most comfortable months to visit.

Garden Grove weather in April

In April, Garden Grove averages a high of 74°F and a low of 54°F. It gets 0.8 in of precipitation over about 3 rainy days. The sun is out about 55% of daylight hours. The April record high is 104°F (1989) and the record low is 34°F (1975). April is one of the most comfortable months to visit.

Garden Grove weather in May

In May, Garden Grove averages a high of 76°F and a low of 58°F. It gets 0.3 in of precipitation over about 2 rainy days. The sun is out about 48% of daylight hours. The May record high is 105°F (2004) and the record low is 39°F (1971). May is one of the most comfortable months to visit.

Garden Grove weather in June

In June, Garden Grove averages a high of 79°F and a low of 61°F. It gets 0.1 in of precipitation over about 1 rainy days. The sun is out about 56% of daylight hours. The June record high is 109°F (1981) and the record low is 49°F (1971). June is one of the most comfortable months to visit.

Garden Grove weather in July

In July, Garden Grove averages a high of 83°F and a low of 64°F. It gets 0.0 in of precipitation over about 1 rainy days. The sun is out about 71% of daylight hours. The July record high is 114°F (2018) and the record low is 50°F (2005).

Garden Grove weather in August

In August, Garden Grove averages a high of 86°F and a low of 65°F. It gets 0.0 in of precipitation over about 0 rainy days. The sun is out about 71% of daylight hours. The August record high is 106°F (2020) and the record low is 52°F (1993).

Garden Grove weather in September

In September, Garden Grove averages a high of 85°F and a low of 63°F. It gets 0.1 in of precipitation over about 1 rainy days. The sun is out about 68% of daylight hours. The September record high is 113°F (2024) and the record low is 51°F (1975).

Garden Grove weather in October

In October, Garden Grove averages a high of 81°F and a low of 59°F. It gets 0.5 in of precipitation over about 2 rainy days. The sun is out about 66% of daylight hours. The October record high is 106°F (2015) and the record low is 37°F (1971).

Garden Grove weather in November

In November, Garden Grove averages a high of 75°F and a low of 52°F. It gets 0.8 in of precipitation over about 3 rainy days. The sun is out about 66% of daylight hours. The November record high is 101°F (2010) and the record low is 36°F (1994). November is one of the most comfortable months to visit.

Garden Grove weather in December

In December, Garden Grove averages a high of 70°F and a low of 48°F. It gets 2.2 in of precipitation over about 6 rainy days. The sun is out about 48% of daylight hours. The December record high is 92°F (1979) and the record low is 24°F (1988). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Garden Grove

July is the sunniest month in Garden Grove, with sunshine about 71% of daylight hours. May is the cloudiest, at 48%. Over the year the sun shines about 60% of daylight hours. Garden Grove is sunnier than 85% of the US.

Humidity peaks in May at 72% and is lowest in November at 59%.

Garden Grove has about 26 days a year above 90°F. Garden Grove is cooler than 53% of the US.

Thunderstorms occur on about 2 days a year.

See where Garden Grove ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

Garden Grove weather records

The hottest temperature on record at the Garden Grove station is 114°F, on July 6, 2018. The coldest is 16°F, on January 12, 1989.

The wettest day on record brought 3.5 in of rain, on December 6, 1997.

29 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.6°F per decade since 1970.

The best time to visit Garden Grove

The most comfortable time to visit is typically January, March to June, and November to December, when daytime highs sit near 74°F.

Winter (December–February) is warm, with average highs around 70°F and lows near 48°F.

Spring (March–May) is warm, with average highs around 74°F and lows near 54°F.

Summer (June–August) is hot, with average highs around 83°F and lows near 63°F. It can feel humid.

Autumn (September–November) is warm, with average highs around 80°F and lows near 58°F.

Garden Grove climate questions

How much rain does Garden Grove get?

Garden Grove gets 12.5 in of precipitation in an average year, over about 35 rainy days.

What is the wettest month in Garden Grove?

February is the wettest month in Garden Grove, with 3.2 in. August is the driest, with 0.0 in.

How many rainy days does Garden Grove have a year?

Garden Grove has about 35 days with measurable rain in an average year. February has the most, about 7.

What is the hottest month in Garden Grove?

August is the warmest month in Garden Grove, with an average high of 86°F.

What is the coldest month in Garden Grove?

January is the coldest month in Garden Grove, with an average low of 48°F.

What is the record high temperature in Garden Grove?

The record high at the Garden Grove station is 114°F, set on July 6, 2018. The record low is 16°F, on January 12, 1989.

What is the sunniest month in Garden Grove?

July is the sunniest month in Garden Grove, with sunshine about 71% of daylight hours. May is the cloudiest.

What is the best time to visit Garden Grove?

The most comfortable time to visit is typically January, March to June, and November to December, when daytime highs sit near 74°F.