Palmdale weather in July

Name: Palmdale
Address: US

In July, Palmdale has daytime highs averaging 34 °C, nights around 19 °C, with 2.9 wet days. Figures are 1991–2020 climate normals.

33.9°C Average high
19.4°C Average low
2.9days Wet days
16mm Rainfall
14h Daylight

Daily temperatures through July

Daily high Daily low Day of month on the horizontal axis. Highs peak at 35.1 °C and lows bottom out at 18.1 °C.

How July develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days	Avg high	Avg low	Chance of rain
1–10 July	33.6 °C	18.7 °C	9 %
11–20 July	33.7 °C	19.3 °C	9 %
21–31 July	34.4 °C	19.9 °C	11 %

Chance of a wet day (over 1 mm) by date in July. Wettest date over the 30 years: July 31, at 20 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical July	Share of the month
Days above 25 °C	31 of 31	100 %
Days above 30 °C	27 of 31	88 %
Days below 0 °C	0 of 31	0 %
Days with more than 1 mm rain	2.9 of 31	9 %

Conditions in July

Measure	Average
Mean temperature	26 °C
Record high (1991–2020)	41 °C
Record low (1991–2020)	12 °C
Relative humidity	39 %
Wind speed	15 km/h
Cloud cover	18 %

Where Palmdale ranks in July

Ranking	Position	Value
The warmest places in North America in July	34th of 50	34 °C
The driest places in North America in July	47th of 50	16 mm

July compared with the months around it

Month	Avg high	Rainfall	Cloud
May	26.3 °C	11 mm	29 %
June	30.9 °C	4 mm	15 %
July	33.9 °C	16 mm	18 %
August	34.2 °C	10 mm	14 %
September	31.4 °C	10 mm	14 %

See all twelve months for Palmdale

July is the 2nd warmest month here.
It is the 5th driest month of the year.
It ranks 4th for least cloud cover.
Days last about 14 hours from sunrise to sunset.
It rains on 2.9 of 31 days — 9 % of the month.
Nights are about 15 °C cooler than the middle of the day.
The hottest July day on record since 1991 reached 41 °C, 7.1 °C above the usual daytime high.

QuestionsJuly in Palmdale, answered

How warm is Palmdale in July?

Daily highs average 34 °C and nights fall to about 19 °C, a spread of 15 °C between afternoon and dawn. That makes July the 2nd warmest month of the year here.

Does it rain much in Palmdale in July?

July averages 16 mm of rain, spread over about 3 of the 31 days — 9 % of the month. Cloud cover averages 18 % of the sky.

How long are the days in July?

Palmdale averages 14 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

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
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: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. 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.