Palmdale climate — normals and trends
Palmdale (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 361 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.1 °C on average) and the coldest is January (6.8 °C). Rainfall peaks in February.
Palmdale averages 20 frost days, 63 hot days (≥ 30 °C) and 46 rainy days per year.
Palmdale has warmed by +2.5 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 32 to 8 per year over the period.
The hottest day of the period reached 40.6 °C (on 6 September 2020) and the coldest -10.9 °C (on 22 December 1990).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
PalmdaleCalifornia
- coords
- 34.58°, -118.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
20.7°C
Average daily low
9.6°C
Annual rainfall
361mm
Sunshine / day
11.4h
Mean relative humidity
47%
Average peak wind
14.0km/h
Seasonal range
17.3°C
Frost days (< 0 °C)
20 d/yr
Hot days (≥ 30 °C)
63 d/yr
Rainy days (≥ 1 mm)
46 d/yr
Annual snowfall
33.5 cm
Average feels-like high
18.5 °C
Average feels-like low
6.9 °C
Average peak gust
38.0 km/h
Tropical nights (≥ 20 °C)
20 d/yr
Solar radiation
21.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.63 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.6 °C
6 September 2020
Coldest day
-10.9 °C
22 December 1990
Wettest day
96 mm
1 March 1983
Windiest day
41.6 km/h
16 March 1964
Strongest gust
102.2 km/h
16 March 1964
Hottest feels-like
40.7 °C
4 July 1991
Coldest feels-like
-15.2 °C
22 December 1990
Snowiest day
37.7 cm
4 January 1974
Sunniest day
14.0 h
3 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 12.9 °C | +1.4 °C | 21 mm | -38 mm |
| Feb | 16.5 °C | +3.7 °C | 48 mm | -16 mm |
| Mar | 15.0 °C | +0.2 °C | 62 mm | +6 mm |
| Apr | 19.2 °C | +0.8 °C | 12 mm | -15 mm |
| May | 23.9 °C | +1.3 °C | 18 mm | +6 mm |
| Jun | 29.5 °C | +1.9 °C | 2 mm | -2 mm |
| Jul | 30.5 °C | -0.7 °C | 3 mm | -10 mm |
| Aug | 32.0 °C | +1.3 °C | 13 mm | -4 mm |
| Sep | 26.8 °C | -1.1 °C | 54 mm | +39 mm |
| Oct | 22.0 °C | -0.4 °C | 46 mm | +29 mm |
| Nov | 17.7 °C | +1.6 °C | 115 mm | +86 mm |
| Dec | 16.3 °C | +4.2 °C | 115 mm | +66 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Palmdale?
Palmdale has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 361 mm of precipitation per year.
What is the hottest day ever recorded in Palmdale?
The hottest day measured in Palmdale between 1940 and 2025 was 6 September 2020, reaching 40.6 °C.
What is the coldest day in Palmdale?
The coldest day measured in Palmdale between 1940 and 2025 was 22 December 1990, at -10.9 °C.
Does it snow in Palmdale?
Yes. Palmdale gets on average 33.5 cm of snow per year and has around 20 frost days.
Has the climate of Palmdale warmed?
Yes: Palmdale warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Palmdale?
The wettest day measured in Palmdale between 1940 and 2025 was 1 March 1983, with 96 mm of rain in 24 hours.
What was the windiest day in Palmdale?
The windiest day measured in Palmdale between 1940 and 2025 was 16 March 1964, with winds reaching 41.6 km/h.
What is the warmest month in Palmdale?
The warmest month in Palmdale is July (24.1 °C on average); the coldest is January (6.8 °C).
How much does it rain in Palmdale?
Palmdale receives on average 361 mm of precipitation per year, spread over about 46 rainy days.
Is it sunny in Palmdale?
Palmdale gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.
What is the biggest single-day snowfall in Palmdale?
The heaviest 24-hour snowfall measured in Palmdale between 1940 and 2025 was 4 January 1974, with 37.7 cm.
Are there tropical nights in Palmdale?
Yes: Palmdale has on average 20 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Palmdale?
In Palmdale, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 4 July 1991, and the lowest was -15.2 °C on 22 December 1990.
Compare Palmdale with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Palmdale