Hawthorne weather in September: Hawthorne, California: normal highs, lows, rain and records for September
Hawthorne in September has a normal high of 79°F and a normal low of 65°F, a daily mean of 72°F, falling from 79°F on the 1st to 77°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.17 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 18°C, 4 mm of precipitation in September.
- NOAA stationHawthorne Municipal Airport
- Station IDUSW00003167
- Location33.92°N 118.33°W
- Elevation63 ft (19 m)
- From the center1 miles
- Population83,633
- Jan 67° 49°
- Feb 67° 51°
- Mar 68° 53°
- Apr 70° 55°
- May 71° 58°
- Jun 73° 62°
- Jul 77° 65°
- Aug 79° 65°
- Sep 79° 65°
- Oct 76° 60°
- Nov 72° 54°
- Dec 66° 49°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Hawthorne in September?
The normal high is 79°F and the normal low 65°F, for a daily mean of 71.5°F. September is 0.5°F cooler than August and 3.4°F warmer than October. September is the 2nd warmest month of the year in Hawthorne and the 9th wettest. Across the month the normal high falls 2°F, from 79°F on September 1 to 77°F on September 30. From one year to the next September's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 69°F and 74°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 79°F | 65°F | 1% | 0% |
| September 8 | 79°F | 65°F | 1% | 0% |
| September 15 | 79°F | 65°F | 2% | 1% |
| September 22 | 78°F | 64°F | 3% | 1% |
| September 30 | 77°F | 63°F | 4% | 2% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 79°F | 65°F | 1% | 0% | 12 h 50 min |
| September 2 | 79°F | 65°F | 1% | 0% | 12 h 50 min |
| September 3 | 79°F | 65°F | 1% | 0% | 12 h 50 min |
| September 4 | 79°F | 65°F | 1% | 0% | 12 h 50 min |
| September 5 | 79°F | 65°F | 1% | 0% | 12 h 50 min |
| September 6 | 79°F | 65°F | 1% | 0% | 12 h 40 min |
| September 7 | 79°F | 65°F | 1% | 0% | 12 h 40 min |
| September 8 | 79°F | 65°F | 1% | 0% | 12 h 40 min |
| September 9 | 79°F | 65°F | 2% | 0% | 12 h 40 min |
| September 10 | 79°F | 65°F | 2% | 1% | 12 h 40 min |
| September 11 | 79°F | 65°F | 2% | 1% | 12 h 30 min |
| September 12 | 79°F | 65°F | 2% | 1% | 12 h 30 min |
| September 13 | 79°F | 65°F | 2% | 1% | 12 h 30 min |
| September 14 | 79°F | 65°F | 2% | 1% | 12 h 30 min |
| September 15 | 79°F | 65°F | 2% | 1% | 12 h 30 min |
| September 16 | 79°F | 65°F | 2% | 1% | 12 h 20 min |
| September 17 | 79°F | 65°F | 2% | 1% | 12 h 20 min |
| September 18 | 78°F | 65°F | 2% | 1% | 12 h 20 min |
| September 19 | 78°F | 64°F | 3% | 1% | 12 h 20 min |
| September 20 | 78°F | 64°F | 3% | 1% | 12 h 20 min |
| September 21 | 78°F | 64°F | 3% | 1% | 12 h 10 min |
| September 22 | 78°F | 64°F | 3% | 1% | 12 h 10 min |
| September 23 | 78°F | 64°F | 3% | 1% | 12 h 10 min |
| September 24 | 78°F | 64°F | 3% | 1% | 12 h 10 min |
| September 25 | 78°F | 64°F | 3% | 1% | 12 h 10 min |
| September 26 | 78°F | 64°F | 4% | 1% | 12 h |
| September 27 | 78°F | 64°F | 4% | 1% | 12 h |
| September 28 | 77°F | 63°F | 4% | 2% | 12 h |
| September 29 | 77°F | 63°F | 4% | 2% | 12 h |
| September 30 | 77°F | 63°F | 4% | 2% | 11 h 50 min |
- Normal high
- 79°FSeptember average
- Normal low
- 65°FSeptember average
- Precipitation
- 0.17 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 12 h 50 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 29
- Days at 80°F or more
- 10
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003167; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Hawthorne in September?
On a given September day the chance of 0.01 inch or more is 2% on average, highest around September 30 (4%). In all, 0.17 in falls on 1 days of a normal September.
In a normal September in Hawthorne, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003167.
What are the records for September in Hawthorne?
The warmest September temperature on this station's record (since 1998) is 111°F, on September 27, 2010; the coldest is 57°F, on September 20, 1999. The wettest September brought 1.63 in (2015).
The September mean against the 1991-2020 normal of 71.5°F: 2021 69.9°F (−1.6), 2022 78.2°F (+6.7), 2023 72.4°F (+0.9), 2024 71.5°F (at normal), 2025 73.0°F (+1.5), 2026 75.9°F (+4.4). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.9°F | −1.6°F | 0.01 in |
| 2022 | 78.2°F | +6.7°F | 0.12 in |
| 2023 | 72.4°F | +0.9°F | 0.03 in |
| 2024 | 71.5°F | at normal | 0.00 in |
| 2025 | 73.0°F | +1.5°F | 0.02 in |
| 2026 | 75.9°F | +4.4°F | 0.61 in |
Source: records: ACIS, station USW00003167; recent months: ACIS, station USW00003167. Records and recent months use complete months only.
How does September in Hawthorne compare across California?
Across the 219 places PlainClimate covers in California, September normal highs run from 64°F in Eureka to 104°F in Brawley; Hawthorne's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Hawthorne in August79°F by day, 65°F at night
- Hawthorne in October76°F by day, 60°F at night
- Hawthorne through the yearEvery month, frost dates, records and recent years
- California in SeptemberThe statewide normal and the warmest and coolest places
- Brawley: California's warmest Septembernormal high 104°F