Santa Ana, CA Climate

Summary Graph

The summary climate graph for Santa Ana, CA shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Santa Ana, CA.


The warmest month in John Wayne Arpt Orange Co, Santa Ana, California is August with an average high temperature of 80.0°F. The hottest day on record was September 27 2010 when the temperature hit 109.9°F. During December the overnight temperature drops to an average of 46.8°F with the lowest temperature of 26.1°F being recorded on January 6 1973.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

27 Sep 2010109.9°F
8 Sep 1984107.1°F
1 Jul 1985107.1°F
4 Sep 1988104°F
16 Jun 1981102°F

The warmest months on average were:

September 198491°F
September 201287°F
July 198486.2°F
July 200686°F
August 198485.4°F

The coldest days on record are:

6 Jan 197326.1°F
17 Dec 199427°F
2 Jan 197629.1°F
19 Jan 194329.3°F
30 Jan 194629.3°F

The coldest months on average were:

January 194539.3°F
December 197839.6°F
February 197441°F
January 197341°F
December 194441.4°F


The wettest month by average rainfall in Santa Ana, CA is December with an average of 0.5 inches of rain falling on 4 to 5 days.Although in February it typically rains on more days with 0.5 inches falling in 5 to 6 days. The driest month by average rainfall in Santa Ana, CA is August with an average of 0.0 inches of rain falling on 0 to 1 days. Although in July it typically rains on less days with 0.0 inches falling in 0 to 1 days

Wettest Days

The wettest days on record are:

10 January 20052 inches
19 January 20101.9 inches
5 January 20080.9 inches
3 January 20110.5 inches
3 January 20060.5 inches

Wettest Months

The wettest months on record are:

December 20109.2 inches
February 20057 inches
January 20056.5 inches
January 20106.3 inches
February 20103.8 inches

Driest Months

The driest months on record are:

July 19400 inches
August 19400 inches
September 19400 inches
October 19400 inches
November 19400 inches
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