Elk Grove climate

Name: Elk Grove
Address: US

Elk Grove is warmest in July, with average highs of 34 °C, and coldest in January, when nights average 4.4 °C. January is the wettest month (123 mm) and July the driest (0.4 mm). Figures are 1991–2020 climate normals.

Across a full year Elk Grove averages 656 mm of rain, 165 days above 25 °C and 6 days below freezing.

United States · 14 m elevation · population 166,913 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 34 °C
Coldest month January 4.4 °C
Driest month July 0 mm
Wettest month January 123 mm
Least cloud August 11 % cloud
Hottest on record September 45 °C
Coldest on record January -4.0 °C

What to expectElk Grove through the year

Elk Grove has a clear annual cycle: average daily highs run from 14 °C in January to 34 °C in July, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 165 days a year reach 25 °C, 104 of them reach 30 °C, 6 nights drop below freezing. The warmest reading in the 1991–2020 record is 45 °C, in September.

Rain is strongly seasonal. January averages 123 mm against 0 mm in July — 340 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	13.8 °C	123 mm	60 %
February	15.9 °C	120 mm	57 %
March	18.7 °C	102 mm	54 %
April	22.2 °C	50 mm	45 %
May	26.9 °C	29 mm	36 %
June	31.5 °C	6 mm	21 %
July	33.5 °C	under 1 mm	12 %
August	33.0 °C	1 mm	11 %
September	31.3 °C	4 mm	15 %
October	25.7 °C	36 mm	28 %
November	18.0 °C	63 mm	47 %
December	13.4 °C	121 mm	57 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	13.8 °C	4.4 °C	8.3 °C	22.4 °C	-4.0 °C	0	0	3
February	15.9 °C	5.6 °C	10.0 °C	24.2 °C	-2.7 °C	0	0	0
March	18.7 °C	7.2 °C	12.2 °C	28.1 °C	-1.5 °C	1	0	0
April	22.2 °C	9.0 °C	14.8 °C	35.0 °C	1.7 °C	8	1	0
May	26.9 °C	11.9 °C	18.6 °C	39.5 °C	5.0 °C	20	8	0
June	31.5 °C	14.5 °C	22.2 °C	42.5 °C	7.9 °C	27	19	0
July	33.5 °C	15.7 °C	23.6 °C	43.7 °C	11.0 °C	31	26	0
August	33.0 °C	15.7 °C	23.2 °C	43.8 °C	11.7 °C	31	25	0
September	31.3 °C	14.9 °C	22.1 °C	45.3 °C	7.7 °C	28	19	0
October	25.7 °C	11.8 °C	17.9 °C	38.5 °C	2.8 °C	18	4	0
November	18.0 °C	7.4 °C	12.0 °C	29.3 °C	-1.6 °C	1	0	0
December	13.4 °C	4.6 °C	8.3 °C	21.2 °C	-3.7 °C	0	0	2

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	123 mm	10	9.8 h/day	60 %	81 %	13 km/h
February	120 mm	10	11 h/day	57 %	77 %	15 km/h
March	102 mm	9	12 h/day	54 %	73 %	14 km/h
April	50 mm	6	13 h/day	45 %	63 %	15 km/h
May	29 mm	4	14 h/day	36 %	56 %	15 km/h
June	6 mm	1	15 h/day	21 %	50 %	15 km/h
July	under 1 mm	0	15 h/day	12 %	51 %	13 km/h
August	1 mm	0	14 h/day	11 %	53 %	13 km/h
September	4 mm	1	12 h/day	15 %	53 %	12 km/h
October	36 mm	3	11 h/day	28 %	57 %	12 km/h
November	63 mm	6	10 h/day	47 %	71 %	13 km/h
December	121 mm	10	9.5 h/day	57 %	78 %	14 km/h

Where Elk Grove ranks

Ranking	Position	Value
The driest places in North America in July	4th of 50	0.4 mm
The driest places in North America in September	20th of 50	3.8 mm
Places with the best weather in North America in April	21st of 50	93/100
The driest places in North America in August	26th of 50	1.5 mm
Places with the best weather in North America in October	28th of 50	93/100
Places with the best weather in North America in May	31st of 50	90/100

Planning a trip? See the best time to visit Elk Grove.

QuestionsCommon questions about Elk Grove’s climate

When is the best time to visit Elk Grove?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, September, October sit closest to 20 °C on average, July is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Elk Grove get?

In July, the warmest month, daily highs average 34 °C. About 104 days a year pass 30 °C. The highest value in the 1991–2020 record is 45 °C.

How cold does it get in winter?

Nights average 4.4 °C in January, the coldest month. A normal year has 6 nights below freezing.

Which month is wettest in Elk Grove?

January, averaging 123 mm over 10 days with rain. The driest month is July with 0 mm. The year as a whole averages 656 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Elk Grove rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 38.409°, -121.372° , 14 m above sea level (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.