Delano weather in September: Delano, California: normal highs, lows, rain and records for September
Delano in September has a normal high of 91°F and a normal low of 62°F, a daily mean of 76°F, falling from 95°F on the 1st to 86°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.04 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 33°C and low of 16°C, 1 mm of precipitation in September.
- NOAA stationDelano
- Station IDUSC00042346
- Location35.77°N 119.26°W
- Elevation302 ft (92 m)
- Population53,198
- Jan 56° 38°
- Feb 63° 41°
- Mar 69° 45°
- Apr 75° 49°
- May 83° 56°
- Jun 92° 62°
- Jul 97° 68°
- Aug 97° 66°
- Sep 91° 62°
- Oct 80° 53°
- Nov 66° 43°
- Dec 57° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Delano in September?
The normal high is 91°F and the normal low 62°F, for a daily mean of 76.1°F. September is 4.9°F cooler than August and 10.0°F warmer than October. September is the 4th warmest month of the year in Delano and the 10th wettest. Across the month the normal high falls 9°F, from 95°F on September 1 to 86°F on September 30.
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 3%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 95°F | 64°F | 1% | 0% |
| September 8 | 93°F | 63°F | 1% | 0% |
| September 15 | 91°F | 62°F | 2% | 1% |
| September 22 | 89°F | 60°F | 3% | 1% |
| September 30 | 86°F | 58°F | 3% | 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 | 95°F | 64°F | 1% | 0% | 13 h |
| September 2 | 95°F | 64°F | 1% | 0% | 13 h |
| September 3 | 95°F | 64°F | 1% | 0% | 12 h 50 min |
| September 4 | 94°F | 64°F | 1% | 0% | 12 h 50 min |
| September 5 | 94°F | 64°F | 1% | 0% | 12 h 50 min |
| September 6 | 94°F | 63°F | 1% | 0% | 12 h 50 min |
| September 7 | 94°F | 63°F | 1% | 0% | 12 h 50 min |
| September 8 | 93°F | 63°F | 1% | 0% | 12 h 40 min |
| September 9 | 93°F | 63°F | 1% | 0% | 12 h 40 min |
| September 10 | 93°F | 63°F | 1% | 0% | 12 h 40 min |
| September 11 | 92°F | 63°F | 1% | 0% | 12 h 40 min |
| September 12 | 92°F | 63°F | 2% | 0% | 12 h 30 min |
| September 13 | 92°F | 62°F | 2% | 0% | 12 h 30 min |
| September 14 | 91°F | 62°F | 2% | 1% | 12 h 30 min |
| September 15 | 91°F | 62°F | 2% | 1% | 12 h 30 min |
| September 16 | 91°F | 62°F | 2% | 1% | 12 h 30 min |
| September 17 | 90°F | 62°F | 2% | 1% | 12 h 20 min |
| September 18 | 90°F | 61°F | 2% | 1% | 12 h 20 min |
| September 19 | 90°F | 61°F | 2% | 1% | 12 h 20 min |
| September 20 | 89°F | 61°F | 2% | 1% | 12 h 20 min |
| September 21 | 89°F | 61°F | 2% | 1% | 12 h 10 min |
| September 22 | 89°F | 60°F | 3% | 1% | 12 h 10 min |
| September 23 | 88°F | 60°F | 3% | 1% | 12 h 10 min |
| September 24 | 88°F | 60°F | 3% | 1% | 12 h 10 min |
| September 25 | 88°F | 60°F | 3% | 1% | 12 h 10 min |
| September 26 | 87°F | 59°F | 3% | 1% | 12 h |
| September 27 | 87°F | 59°F | 3% | 1% | 12 h |
| September 28 | 86°F | 59°F | 3% | 2% | 12 h |
| September 29 | 86°F | 58°F | 3% | 2% | 12 h |
| September 30 | 86°F | 58°F | 3% | 2% | 11 h 50 min |
- Normal high
- 91°FSeptember average
- Normal low
- 62°FSeptember average
- Precipitation
- 0.04 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 20
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 28
- Sunshine
- 97%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00042346; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Delano in September?
On a given September day the chance of 0.01 inch or more is 2% on average, highest around September 30 (3%). In all, 0.04 in falls on 1 days of a normal September.
In a normal September in Delano, 20 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00042346.
What are the records for September in Delano?
The September mean against the 1991-2020 normal of 76.1°F: 2025 78.5°F (+2.4). 1 of 1 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2025 | 78.5°F | +2.4°F | 0.21 in |
Source: recent months: ACIS, station USC00042346. Records and recent months use complete months only.
How does September in Delano 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; Delano's is 91°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.