Weather in Sacramento County

Calculated from weather data of Sacramento International Airport (KSMF) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	57.0	59.0	58.0	59.0	59.0	56.0
February	62.0	62.0	59.0	65.0	64.0	67.0
March	65.0	66.0	60.0	72.0	66.0	65.0
April	74.0		75.0	75.0	79.0	76.0
May	82.0		79.0	85.0	86.0	85.0
June	91.0		87.0	94.0	93.0	92.0
July	96.0		98.0	96.0	98.0	95.0
August	95.0		96.0	98.0	94.0	96.0
September	90.0		87.0	94.0	92.0	92.0
October	80.0		82.0	84.0	75.0	85.0
November	66.0		69.0	64.0	64.0	65.0
December	57.0		61.0	54.0	52.0	59.0
Average	75.0	62.0	76.0	79.0	77.0	78.0

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	42.0	46	44	38	41	42
February	41.0	46	40	37	42	41
March	45.0	48	45	45	42	44
April	49.0		49	48	48	49
May	54.0		54	52	55	55
June	59.0		58	61	60	59
July	61.0		63	62	61	60
August	62.0		64	64	60	64
September	59.0		60	64	58	60
October	51.0		53	53	52	52
November	43.0		45	40	46	41
December	40.0		44	40	42	38
Average	50.0	47.0	52.0	51.0	50.0	51.0

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	111	138	132	144
77 °F or warmer	0	168	182	176	190
68 °F or warmer	13	218	246	219	235
32 °F or colder	0	0	7	1	4

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	9.0	10	17	0	5	3
February	7.1	10	11	0	2	0
March	8.9	7	21	1	3	9
April	3.1		0	3	0	5
May	2.4		4	1	0	3
June	0.5		1	1	0	0
July	0.0		0	0	0	0
August	0.0		0	0	0	0
September	0.6		1	2	0	0
October	1.1		2	0	6	0
November	4.0		3	3	3	3
December	8.3		6	17	12	4
Average	4.1	9.0	5.2	1.7	2.3	2.2

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	7.9	8	11	6	8	7
February	8.8	9	9	7	8	8
March	9.0	9	11	8	8	9
April	8.2		8	10	7	7
May	8.7		8	10	10	8
June	8.1		8	9	8	9
July	7.0		7	8	7	7
August	6.3		7	6	6	6
September	6.7		7	7	6	6
October	7.1		6	5	9	6
November	6.1		7	7	5	7
December	6.6		6	8	7	7
Average	7.7	8.6	7.9	7.6	7.5	7.1

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	S	S	NW	SE	S
February	S	SW	NW	NW	NW
March	S	S	W	NW	S
April		SW	SW	S	SW
May		S	NW	W	SW
June		S	S	S	SW
July		S	S	S	S
August		SW	S	S	S
September		S	SW	SW	NW
October		NW	NW	SW	NW
November		NW	W	NW	NW
December		S	S	S	NW

Prevailing wind direction

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

Sacramento County weather Q&A

What is the warmest month in Sacramento County?

The warmest month is July with an average temperature of 96 °F over the past years.

What is the coldest month in Sacramento County?

The coldest month is December with an average daytime temperature of 57 °F in the past few years.

Which month is the wettest in Sacramento County?

Chance of precipitation is the highest in January with a probability of around 9.0 %.

Which month is the driest in Sacramento County?

The least rainfall and snow can be expected in July. The probability is about 0.0 %.