Weather in Orange County

Calculated from weather data of John Wayne/Orange County Airport (KSNA) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	67.0	65.0	64.0	70.0	68.0	69.0
February	67.0	64.0	65.0	73.0	68.0	72.0
March	68.0	65.0	63.0	72.0	67.0	68.0
April	72.0		68.0	75.0	71.0	72.0
May	71.0		67.0	73.0	72.0	77.0
June	75.0		72.0	78.0	76.0	77.0
July	80.0		80.0	79.0	81.0	79.0
August	82.0		82.0	83.0	81.0	83.0
September	81.0		77.0	86.0	80.0	85.0
October	79.0		78.0	78.0	77.0	81.0
November	74.0		76.0	71.0	76.0	73.0
December	68.0		70.0	64.0	64.0	70.0
Average	73.0	65.0	72.0	75.0	73.0	75.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	51.0	51	50	51	50	51
February	51.0	53	48	51	51	53
March	53.0	54	51	55	51	56
April	57.0		55	59	57	58
May	60.0		59	61	61	64
June	63.0		62	65	64	65
July	67.0		66	67	68	65
August	69.0		68	71	67	69
September	67.0		67	72	66	67
October	62.0		62	66	60	64
November	56.0		56	53	58	53
December	51.0		53	50	50	49
Average	58.0	52.0	58.0	60.0	59.0	59.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	11	31	28	40
77 °F or warmer	2	91	139	118	120
68 °F or warmer	14	225	282	257	280
32 °F or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	5.3	6	12	1	3	0
February	6.7	20	6	0	0	3
March	6.8	10	19	2	3	6
April	1.4		0	0	0	9
May	1.6		2	1	2	2
June	0.5		1	0	1	1
July	0.3		0	1	1	1
August	0.7		4	0	1	0
September	0.7		3	1	0	0
October	0.9		1	2	2	0
November	1.9		1	2	0	1
December	4.3		3	4	12	2
Average	3.4	11.9	4.2	1.0	2.0	2.1

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	5.6	5	7	5	6	5
February	6.3	6	7	7	6	6
March	7.0	8	7	8	7	7
April	7.1		7	7	7	7
May	7.3		7	8	8	7
June	6.9		6	7	7	7
July	7.0		7	7	7	6
August	6.7		7	7	6	7
September	6.2		6	7	6	5
October	6.2		6	6	6	6
November	5.5		6	7	5	5
December	4.8		4	5	5	5
Average	6.4	6.5	6.4	6.7	6.3	6.1

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	S	SW	S	SW
February	S	SW	SW	SW	S
March	S	SW	SW	SW	SW
April		SW	SW	SW	S
May		SW	SW	SW	SW
June		SW	SW	SW	SW
July		SW	SW	SW	SW
August		SW	SW	SW	SW
September		SW	SW	SW	SW
October		S	SW	SW	SW
November		S	S	SW	SW
December		S	SW	SW	S

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Orange County weather Q&A

What is the warmest month in Orange County?

The warmest month is August with an average temperature of 82 °F over the past years.

What is the coldest month in Orange County?

The coldest month is February with an average daytime temperature of 67 °F in the past few years.

Which month is the wettest in Orange County?

Chance of precipitation is the highest in March with a probability of around 6.9 %.

Which month is the driest in Orange County?

The least rainfall and snow can be expected in July. The probability is about 0.3 %.