Weather in Sacramento County

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

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	14.1	15.1	14.5	15.0	14.9	13.5
February	16.4	16.5	15.0	18.3	17.6	19.3
March	18.5	18.8	15.8	22.1	18.8	18.3
April	23.5		23.8	23.6	26.1	24.1
May	27.8		26.0	29.3	30.1	29.1
June	32.8		30.3	34.3	34.0	33.1
July	35.6		36.5	35.7	36.3	34.8
August	35.0		35.7	36.7	34.7	35.7
September	32.1		30.3	34.7	33.1	33.2
October	26.9		27.5	29.0	23.6	29.6
November	18.7		20.8	17.6	17.6	18.6
December	13.8		16.3	12.1	11.1	14.8
Average	23.7	16.8	24.4	26.2	24.8	25.3

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	5.5	8	7	3	5	6
February	5.1	8	4	3	5	5
March	7.0	9	7	7	6	7
April	9.4		10	9	9	10
May	11.9		12	11	13	13
June	15.0		14	16	15	15
July	16.3		17	17	16	15
August	16.7		18	18	16	18
September	15.0		16	18	14	16
October	10.4		12	12	11	11
November	6.3		7	4	8	5
December	4.5		6	4	5	3
Average	10.0	8.2	10.8	10.3	10.2	10.2

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
30 °C or warmer	0	111	138	132	144
25 °C or warmer	0	168	182	176	190
20 °C or warmer	13	218	246	219	235
0 °C 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 (km/h)

Month	Average	2024	2023	2022	2021	2020
January	12.7	13	18	9	13	11
February	14.2	14	15	11	13	13
March	14.5	15	18	13	14	14
April	13.2		13	16	12	12
May	14.1		13	16	16	13
June	13.1		13	14	14	14
July	11.3		11	13	12	11
August	10.2		11	10	10	10
September	10.8		11	12	10	10
October	11.4		10	8	14	10
November	9.9		11	11	8	11
December	10.7		9	13	11	10
Average	12.4	13.9	12.7	12.3	12.2	11.5

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 36 °C over the past years.

What is the coldest month in Sacramento County?

The coldest month is December with an average daytime temperature of 14 °C 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 %.