Scottsdale weather in September: Scottsdale, Arizona: normal highs, lows, rain and records for September
Scottsdale in September has a normal high of 98°F and a normal low of 75°F, a daily mean of 87°F, falling from 102°F on the 1st to 93°F by the 30th. Measurable precipitation falls on 2 days in a normal September, 0.60 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 37°C and low of 24°C, 15 mm of precipitation in September.
- NOAA stationScottsdale Municipal Airport
- Station IDUSW00003192
- Location33.62°N 111.91°W
- Elevation1,473 ft (449 m)
- Population246,170
- Jan 67° 43°
- Feb 69° 46°
- Mar 76° 52°
- Apr 83° 58°
- May 92° 67°
- Jun 102° 76°
- Jul 104° 83°
- Aug 103° 82°
- Sep 98° 75°
- Oct 87° 63°
- Nov 75° 51°
- Dec 65° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Scottsdale in September?
The normal high is 98°F and the normal low 75°F, for a daily mean of 86.7°F. September is 5.6°F cooler than August and 11.7°F warmer than October. September is the 4th warmest month of the year in Scottsdale and the 9th wettest. Across the month the normal high falls 9°F, from 102°F on September 1 to 93°F on September 30. From one year to the next September's mean temperature typically moves about 1.5°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 85°F and 88°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 11%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 102°F | 80°F | 11% | 6% |
| September 8 | 101°F | 78°F | 10% | 6% |
| September 15 | 99°F | 76°F | 9% | 5% |
| September 22 | 96°F | 73°F | 9% | 4% |
| September 30 | 93°F | 69°F | 9% | 4% |
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 | 102°F | 80°F | 11% | 6% | 12 h 50 min |
| September 2 | 102°F | 80°F | 11% | 6% | 12 h 50 min |
| September 3 | 102°F | 80°F | 10% | 6% | 12 h 50 min |
| September 4 | 102°F | 79°F | 10% | 6% | 12 h 50 min |
| September 5 | 101°F | 79°F | 10% | 6% | 12 h 50 min |
| September 6 | 101°F | 79°F | 10% | 6% | 12 h 40 min |
| September 7 | 101°F | 79°F | 10% | 6% | 12 h 40 min |
| September 8 | 101°F | 78°F | 10% | 6% | 12 h 40 min |
| September 9 | 101°F | 78°F | 10% | 5% | 12 h 40 min |
| September 10 | 100°F | 78°F | 10% | 5% | 12 h 40 min |
| September 11 | 100°F | 77°F | 10% | 5% | 12 h 30 min |
| September 12 | 100°F | 77°F | 10% | 5% | 12 h 30 min |
| September 13 | 99°F | 77°F | 9% | 5% | 12 h 30 min |
| September 14 | 99°F | 76°F | 9% | 5% | 12 h 30 min |
| September 15 | 99°F | 76°F | 9% | 5% | 12 h 30 min |
| September 16 | 98°F | 76°F | 9% | 5% | 12 h 20 min |
| September 17 | 98°F | 75°F | 9% | 5% | 12 h 20 min |
| September 18 | 98°F | 75°F | 9% | 4% | 12 h 20 min |
| September 19 | 97°F | 74°F | 9% | 4% | 12 h 20 min |
| September 20 | 97°F | 74°F | 9% | 4% | 12 h 20 min |
| September 21 | 97°F | 73°F | 9% | 4% | 12 h 10 min |
| September 22 | 96°F | 73°F | 9% | 4% | 12 h 10 min |
| September 23 | 96°F | 73°F | 9% | 4% | 12 h 10 min |
| September 24 | 95°F | 72°F | 9% | 4% | 12 h 10 min |
| September 25 | 95°F | 72°F | 9% | 4% | 12 h 10 min |
| September 26 | 95°F | 71°F | 9% | 4% | 12 h |
| September 27 | 94°F | 71°F | 9% | 4% | 12 h |
| September 28 | 94°F | 70°F | 9% | 4% | 12 h |
| September 29 | 94°F | 70°F | 9% | 4% | 12 h |
| September 30 | 93°F | 69°F | 9% | 4% | 11 h 50 min |
- Normal high
- 98°FSeptember average
- Normal low
- 75°FSeptember average
- Precipitation
- 0.60 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 27
- Daylight
- 12 h 50 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 30
- Sunshine
- 93%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003192; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Scottsdale in September?
On a given September day the chance of 0.01 inch or more is 9% on average, highest around September 1 (11%). In all, 0.60 in falls on 2 days of a normal September.
In a normal September in Scottsdale, 27 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003192.
What are the records for September in Scottsdale?
The warmest September temperature on this station's record (since 2000) is 113°F, on September 5, 2020; the coldest is 57°F, on September 25, 2017. The wettest September brought 3.90 in (2014).
The September mean against the 1991-2020 normal of 86.7°F: 2021 87.3°F (+0.5), 2022 89.0°F (+2.3), 2023 87.0°F (+0.3), 2024 90.9°F (+4.2), 2025 87.3°F (+0.6), 2026 87.9°F (+1.2). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 87.3°F | +0.5°F | 0.54 in |
| 2022 | 89.0°F | +2.3°F | – |
| 2023 | 87.0°F | +0.3°F | 0.14 in |
| 2024 | 90.9°F | +4.2°F | 0.04 in |
| 2025 | 87.3°F | +0.6°F | 1.51 in |
| 2026 | 87.9°F | +1.2°F | 1.99 in |
Source: records: ACIS, station USW00003192; recent months: ACIS, station USW00003192. Records and recent months use complete months only.
How does September in Scottsdale compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, September normal highs run from 70°F in Greer to 104°F in Tacna; Scottsdale's is 98°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.