El Centro weather in September: El Centro, California: normal highs, lows, rain and records for September
El Centro in September has a normal high of 102°F and a normal low of 72°F, a daily mean of 87°F, falling from 107°F on the 1st to 97°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 39°C and low of 22°C, 5 mm of precipitation in September.
- NOAA stationImperial County Airport
- Station IDUSW00003144
- Location32.83°N 115.58°W
- Elevation-58 ft (-18 m)
- Population44,230
- Jan 71° 42°
- Feb 74° 45°
- Mar 80° 51°
- Apr 86° 56°
- May 94° 62°
- Jun 104° 70°
- Jul 108° 78°
- Aug 108° 79°
- Sep 102° 72°
- Oct 90° 60°
- Nov 78° 48°
- Dec 69° 41°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is El Centro in September?
The normal high is 102°F and the normal low 72°F, for a daily mean of 87.2°F. September is 6.4°F cooler than August and 12.0°F warmer than October. September is the 3rd warmest month of the year in El Centro and the 6th wettest. Across the month the normal high falls 10°F, from 107°F on September 1 to 97°F on September 30. From one year to the next September's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 85°F and 89°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 3%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 107°F | 77°F | 3% | 1% |
| September 8 | 105°F | 75°F | 3% | 1% |
| September 15 | 103°F | 73°F | 3% | 1% |
| September 22 | 100°F | 70°F | 2% | 1% |
| September 30 | 97°F | 67°F | 3% | 1% |
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 | 107°F | 77°F | 3% | 1% | 12 h 50 min |
| September 2 | 106°F | 77°F | 3% | 1% | 12 h 50 min |
| September 3 | 106°F | 77°F | 3% | 1% | 12 h 50 min |
| September 4 | 106°F | 76°F | 3% | 1% | 12 h 50 min |
| September 5 | 106°F | 76°F | 3% | 1% | 12 h 40 min |
| September 6 | 106°F | 76°F | 3% | 1% | 12 h 40 min |
| September 7 | 105°F | 75°F | 3% | 1% | 12 h 40 min |
| September 8 | 105°F | 75°F | 3% | 1% | 12 h 40 min |
| September 9 | 105°F | 75°F | 3% | 1% | 12 h 40 min |
| September 10 | 104°F | 74°F | 3% | 1% | 12 h 40 min |
| September 11 | 104°F | 74°F | 3% | 1% | 12 h 30 min |
| September 12 | 104°F | 74°F | 3% | 1% | 12 h 30 min |
| September 13 | 103°F | 73°F | 3% | 1% | 12 h 30 min |
| September 14 | 103°F | 73°F | 3% | 1% | 12 h 30 min |
| September 15 | 103°F | 73°F | 3% | 1% | 12 h 30 min |
| September 16 | 102°F | 72°F | 3% | 1% | 12 h 20 min |
| September 17 | 102°F | 72°F | 3% | 1% | 12 h 20 min |
| September 18 | 102°F | 72°F | 3% | 1% | 12 h 20 min |
| September 19 | 101°F | 71°F | 3% | 1% | 12 h 20 min |
| September 20 | 101°F | 71°F | 3% | 1% | 12 h 20 min |
| September 21 | 100°F | 70°F | 2% | 1% | 12 h 10 min |
| September 22 | 100°F | 70°F | 2% | 1% | 12 h 10 min |
| September 23 | 100°F | 69°F | 2% | 1% | 12 h 10 min |
| September 24 | 99°F | 69°F | 3% | 1% | 12 h 10 min |
| September 25 | 99°F | 69°F | 3% | 1% | 12 h 10 min |
| September 26 | 98°F | 68°F | 3% | 1% | 12 h |
| September 27 | 98°F | 68°F | 3% | 1% | 12 h |
| September 28 | 98°F | 67°F | 3% | 1% | 12 h |
| September 29 | 97°F | 67°F | 3% | 1% | 12 h |
| September 30 | 97°F | 67°F | 3% | 1% | 12 h |
- Normal high
- 102°FSeptember average
- Normal low
- 72°FSeptember average
- Precipitation
- 0.18 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 29
- Daylight
- 12 h 50 min to 12 hSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 30
- Sunshine
- 95%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003144; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in El Centro in September?
On a given September day the chance of 0.01 inch or more is 3% on average, highest around September 6 (3%). In all, 0.18 in falls on 1 days of a normal September.
In a normal September in El Centro, 29 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003144.
How humid and windy is El Centro in September?
At 3 p.m. the normal temperature is 96°F with 17% relative humidity and a dew point of 44°F; at 6 a.m. it is 69°F with 47% humidity. The wind averages 6.6 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 69°F | 48°F | 47% | 5.2 mph | 93% |
| 9 a.m. | 85°F | 50°F | 30% | 6.6 mph | 93% |
| noon | 94°F | 46°F | 19% | 6.7 mph | 94% |
| 3 p.m. | 96°F | 44°F | 17% | 7.8 mph | 92% |
| 6 p.m. | 88°F | 47°F | 24% | 7.0 mph | 95% |
| 9 p.m. | 79°F | 48°F | 34% | 7.2 mph | 95% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003144. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in El Centro?
The warmest September temperature on El Centro's official record (since 1925) is 121°F, on September 5, 2020; the coldest is 51°F, on September 30, 1930. The wettest September brought 3.00 in (1976).
The September mean against the 1991-2020 normal of 87.2°F: 2021 88.7°F (+1.5), 2022 89.1°F (+1.9), 2023 85.4°F (−1.8), 2025 87.5°F (+0.3), 2026 89.3°F (+2.1). 4 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 88.7°F | +1.5°F | 0.00 in |
| 2022 | 89.1°F | +1.9°F | 1.10 in |
| 2023 | 85.4°F | −1.8°F | 0.52 in |
| 2025 | 87.5°F | +0.3°F | 0.42 in |
| 2026 | 89.3°F | +2.1°F | 0.21 in |
Source: records: ACIS, NWS threaded record IPLthr; recent months: ACIS, station USW00003144. Records and recent months use complete months only.
How does September in El Centro 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; El Centro's is 102°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- El Centro in August108°F by day, 79°F at night
- El Centro in October90°F by day, 60°F at night
- El Centro 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