Apache Junction weather in September: Apache Junction, Arizona: normal highs, lows, rain and records for September
Apache Junction in September has a normal high of 99°F and a normal low of 71°F, a daily mean of 85°F, falling from 103°F on the 1st to 95°F by the 30th. Measurable precipitation falls on 4 days in a normal September, 1.07 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 37°C and low of 22°C, 27 mm of precipitation in September.
- NOAA stationApache Junction (5 mi NE)
- Station IDUSC00020288
- Location33.46°N 111.48°W
- Elevation2,070 ft (631 m)
- From the center6 miles
- Population44,309
- Jan 67° 43°
- Feb 70° 44°
- Mar 77° 48°
- Apr 85° 53°
- May 93° 60°
- Jun 103° 69°
- Jul 105° 77°
- Aug 104° 76°
- Sep 99° 71°
- Oct 88° 60°
- Nov 76° 50°
- Dec 66° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Apache Junction in September?
The normal high is 99°F and the normal low 71°F, for a daily mean of 85.2°F. September is 4.9°F cooler than August and 11.0°F warmer than October. September is the 4th warmest month of the year in Apache Junction and the 7th wettest. Across the month the normal high falls 8°F, from 103°F on September 1 to 95°F on September 30. From one year to the next September's mean temperature typically moves about 1.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 84°F and 87°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 16%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 103°F | 75°F | 16% | 10% |
| September 8 | 101°F | 74°F | 14% | 9% |
| September 15 | 100°F | 72°F | 12% | 7% |
| September 22 | 98°F | 69°F | 10% | 6% |
| September 30 | 95°F | 66°F | 9% | 5% |
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 | 103°F | 75°F | 16% | 10% | 12 h 50 min |
| September 2 | 103°F | 75°F | 16% | 10% | 12 h 50 min |
| September 3 | 102°F | 75°F | 16% | 10% | 12 h 50 min |
| September 4 | 102°F | 74°F | 15% | 9% | 12 h 50 min |
| September 5 | 102°F | 74°F | 15% | 9% | 12 h 50 min |
| September 6 | 102°F | 74°F | 15% | 9% | 12 h 40 min |
| September 7 | 102°F | 74°F | 15% | 9% | 12 h 40 min |
| September 8 | 101°F | 74°F | 14% | 9% | 12 h 40 min |
| September 9 | 101°F | 73°F | 14% | 8% | 12 h 40 min |
| September 10 | 101°F | 73°F | 14% | 8% | 12 h 40 min |
| September 11 | 101°F | 73°F | 13% | 8% | 12 h 30 min |
| September 12 | 101°F | 73°F | 13% | 8% | 12 h 30 min |
| September 13 | 100°F | 72°F | 13% | 7% | 12 h 30 min |
| September 14 | 100°F | 72°F | 12% | 7% | 12 h 30 min |
| September 15 | 100°F | 72°F | 12% | 7% | 12 h 30 min |
| September 16 | 99°F | 71°F | 12% | 7% | 12 h 20 min |
| September 17 | 99°F | 71°F | 12% | 6% | 12 h 20 min |
| September 18 | 99°F | 71°F | 11% | 6% | 12 h 20 min |
| September 19 | 99°F | 70°F | 11% | 6% | 12 h 20 min |
| September 20 | 98°F | 70°F | 11% | 6% | 12 h 20 min |
| September 21 | 98°F | 70°F | 11% | 6% | 12 h 10 min |
| September 22 | 98°F | 69°F | 10% | 6% | 12 h 10 min |
| September 23 | 97°F | 69°F | 10% | 5% | 12 h 10 min |
| September 24 | 97°F | 69°F | 10% | 5% | 12 h 10 min |
| September 25 | 96°F | 68°F | 10% | 5% | 12 h 10 min |
| September 26 | 96°F | 68°F | 10% | 5% | 12 h |
| September 27 | 96°F | 67°F | 10% | 5% | 12 h |
| September 28 | 95°F | 67°F | 9% | 5% | 12 h |
| September 29 | 95°F | 67°F | 9% | 5% | 12 h |
| September 30 | 95°F | 66°F | 9% | 5% | 11 h 50 min |
- Normal high
- 99°FSeptember average
- Normal low
- 71°FSeptember average
- Precipitation
- 1.07 inmonth total
- Days with precipitation
- 40.01 inch or more
- Days at 90°F or more
- 29
- 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 USC00020288; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Apache Junction in September?
On a given September day the chance of 0.01 inch or more is 12% on average, highest around September 1 (16%). In all, 1.07 in falls on 4 days of a normal September.
In a normal September in Apache Junction, 29 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00020288.
What are the records for September in Apache Junction?
The warmest September temperature on this station's record (since 1987) is 114°F, on September 9, 2023; the coldest is 51°F, on September 26, 2017. The wettest September brought 5.89 in (2014).
The September mean against the 1991-2020 normal of 85.2°F: 2021 85.1°F (−0.1), 2022 86.5°F (+1.3), 2023 85.0°F (−0.2), 2024 88.6°F (+3.4), 2026 85.5°F (+0.3). 3 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 85.1°F | −0.1°F | 1.05 in |
| 2022 | 86.5°F | +1.3°F | 1.47 in |
| 2023 | 85.0°F | −0.2°F | 1.88 in |
| 2024 | 88.6°F | +3.4°F | 0.07 in |
| 2026 | 85.5°F | +0.3°F | 2.24 in |
Source: records: ACIS, station USC00020288; recent months: ACIS, station USC00020288. Records and recent months use complete months only.
How does September in Apache Junction 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; Apache Junction's is 99°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Apache Junction in August104°F by day, 76°F at night
- Apache Junction in October88°F by day, 60°F at night
- Apache Junction through the yearEvery month, frost dates, records and recent years
- Arizona in SeptemberThe statewide normal and the warmest and coolest places
- Tacna: Arizona's warmest Septembernormal high 104°F