Palmdale, CA weather in September
In September, Palmdale sees highs around 93°F and lows around 60°F: hot and dry. There are about 1 day with rain. Plan outdoor time for mornings and evenings.
- Normal high
- 93°F
- Normal low
- 60°F
- Wet days
- 1
- 0.1 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 96°F | 87°F |
| Normal low | 64°F | 56°F |
| Chance of a wet day | 2% | 2% |
| Sunrise / sunset | 6:25 am / 7:19 pm | 6:46 am / 6:38 pm |
| Daylight | 12.9 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am59°Fdew point 37°F
- 9 am77°Fdew point 39°F
- Noon88°Fdew point 36°F
- 3 pm90°Fdew point 37°F
- 6 pm81°Fdew point 40°F
- 9 pm72°Fdew point 40°F
NOAA hourly normals (local standard time) from Lancaster Wm J Fox Fld (12 mi away); average wind 10 mph; clear or few clouds in 94% of daytime hours, mostly cloudy or overcast in 5%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F2 of 30
- Hot dayshigh 90°F or more23 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow1 of 30
- Notable rainat least 0.10 in0 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 0.1 in; a dry September brings about 0.0 in and a wet one about 0.01 in (25th and 75th percentiles). Days with half an inch or more are rare.
How September varies from year to year
- Warmest September, 1991-20202020: average high 97°F
- Coolest September2005: average high 87°F
- Wettest September1997: 1.2 in
- Driest September1992: no measurable precipitation
- Highest reading111°F (September 6, 2020)
- Lowest reading43°F (September 30, 2019)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 98°F | 93°F | 81°F |
| Normal low | 66°F | 60°F | 50°F |
| Wet days | 0 | 1 | 1 |
| Comfortable days | 0 | 2 | 12 |
| Daylight | 13.4 h | 12.4 h | 11.3 h |
Highs change by -5°F from August and -12°F into October.
Nearby alternatives in September
- Warmer: Palm Springs, CA104 mi · high 102°F · 1 wet day
- Cooler: Burbank, CA30 mi · high 87°F · 1 wet day
How Palmdale ranks in September
- Normal high19th warmest of 378 cities; 6th of 60 in California
- Wet days21st driest of 378
- Comfortable days266th most of 342
What to pack for Palmdale in September
- Light, breathable clothing – highs near 93°F
- Layers – afternoons near 93°F but nights near 60°F
Heating and cooling
September has 5 heating degree days and 348 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How hot is Palmdale in September?
The normal high is 93°F and the normal low is 60°F. From 1991 to 2020 the hottest September reading was 111°F (most recently on September 6, 2020).
Does it rain a lot in Palmdale in September?
About 1 days in September have at least 0.01 in of precipitation, and the normal total is 0.1 in. The wettest September in 1991-2020 was in 1997 (1.2 in); the driest was in 1992, with no measurable precipitation.
Is September a good time to visit Palmdale?
September ranks 10th of 12 months on our comfort score for Palmdale (41 out of 100). It has about 2 comfortable days and about 23 days at 90°F or hotter. The best months are March, April and November.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Palmdale (USC00046624), 1.4 mi ENE of the city center, 2,612 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Lancaster Wm J Fox Fld (USW00003159), 12 mi NNW of the city center, 2,338 ft (320 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: General William J. Fox Airfield Airport (723816-03159), 12 mi NNW of the city center, 2,338 ft (320 ft lower than the city). Hourly observations, 1991-2020.