Sierra Vista weather in September: Sierra Vista, Arizona: normal highs, lows, rain and records for September
Sierra Vista in September has a normal high of 87°F and a normal low of 57°F, a daily mean of 72°F, falling from 89°F on the 1st to 84°F by the 30th. Measurable precipitation falls on 5 days in a normal September, 1.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 14°C, 33 mm of precipitation in September.
- NOAA stationSierra Vista
- Station IDUSC00027880
- Location31.54°N 110.28°W
- Elevation4,606 ft (1,404 m)
- Population44,710
- Jan 61° 30°
- Feb 64° 33°
- Mar 71° 38°
- Apr 78° 43°
- May 85° 50°
- Jun 94° 60°
- Jul 92° 63°
- Aug 90° 62°
- Sep 87° 57°
- Oct 80° 47°
- Nov 70° 37°
- Dec 62° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sierra Vista in September?
The normal high is 87°F and the normal low 57°F, for a daily mean of 71.7°F. September is 3.8°F cooler than August and 8.2°F warmer than October. September is the 4th warmest month of the year in Sierra Vista and the 3rd wettest. Across the month the normal high falls 5°F, from 89°F on September 1 to 84°F on September 30. From one year to the next September's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 70°F and 73°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 25%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 60°F | 25% | 17% |
| September 8 | 88°F | 59°F | 21% | 14% |
| September 15 | 87°F | 57°F | 17% | 11% |
| September 22 | 86°F | 55°F | 13% | 9% |
| September 30 | 84°F | 52°F | 11% | 7% |
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 | 89°F | 60°F | 25% | 17% | 12 h 50 min |
| September 2 | 89°F | 60°F | 25% | 16% | 12 h 50 min |
| September 3 | 89°F | 60°F | 24% | 16% | 12 h 50 min |
| September 4 | 89°F | 60°F | 24% | 16% | 12 h 40 min |
| September 5 | 89°F | 60°F | 23% | 15% | 12 h 40 min |
| September 6 | 89°F | 59°F | 22% | 15% | 12 h 40 min |
| September 7 | 88°F | 59°F | 22% | 14% | 12 h 40 min |
| September 8 | 88°F | 59°F | 21% | 14% | 12 h 40 min |
| September 9 | 88°F | 59°F | 20% | 13% | 12 h 40 min |
| September 10 | 88°F | 58°F | 20% | 13% | 12 h 30 min |
| September 11 | 88°F | 58°F | 19% | 13% | 12 h 30 min |
| September 12 | 88°F | 58°F | 19% | 12% | 12 h 30 min |
| September 13 | 87°F | 58°F | 18% | 12% | 12 h 30 min |
| September 14 | 87°F | 57°F | 17% | 11% | 12 h 30 min |
| September 15 | 87°F | 57°F | 17% | 11% | 12 h 20 min |
| September 16 | 87°F | 57°F | 16% | 11% | 12 h 20 min |
| September 17 | 87°F | 57°F | 16% | 10% | 12 h 20 min |
| September 18 | 87°F | 56°F | 15% | 10% | 12 h 20 min |
| September 19 | 86°F | 56°F | 15% | 10% | 12 h 20 min |
| September 20 | 86°F | 56°F | 14% | 9% | 12 h 10 min |
| September 21 | 86°F | 55°F | 14% | 9% | 12 h 10 min |
| September 22 | 86°F | 55°F | 13% | 9% | 12 h 10 min |
| September 23 | 86°F | 55°F | 13% | 9% | 12 h 10 min |
| September 24 | 85°F | 54°F | 12% | 8% | 12 h 10 min |
| September 25 | 85°F | 54°F | 12% | 8% | 12 h 10 min |
| September 26 | 85°F | 54°F | 12% | 8% | 12 h |
| September 27 | 85°F | 53°F | 11% | 8% | 12 h |
| September 28 | 84°F | 53°F | 11% | 7% | 12 h |
| September 29 | 84°F | 53°F | 11% | 7% | 12 h |
| September 30 | 84°F | 52°F | 11% | 7% | 12 h |
- Normal high
- 87°FSeptember average
- Normal low
- 57°FSeptember average
- Precipitation
- 1.31 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 11
- 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
- 28
- Sunshine
- 87%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00027880; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sierra Vista in September?
On a given September day the chance of 0.01 inch or more is 17% on average, highest around September 1 (25%). In all, 1.31 in falls on 5 days of a normal September.
In a normal September in Sierra Vista, 11 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00027880.
What are the records for September in Sierra Vista?
The September mean against the 1991-2020 normal of 71.7°F: 2021 72.7°F (+1.0), 2022 72.6°F (+0.9), 2023 75.6°F (+3.9), 2024 73.9°F (+2.2), 2025 73.3°F (+1.6), 2026 72.7°F (+1.0). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.7°F | +1.0°F | 1.91 in |
| 2022 | 72.6°F | +0.9°F | 0.85 in |
| 2023 | 75.6°F | +3.9°F | 0.80 in |
| 2024 | 73.9°F | +2.2°F | 0.35 in |
| 2025 | 73.3°F | +1.6°F | 4.20 in |
| 2026 | 72.7°F | +1.0°F | 3.12 in |
Source: recent months: ACIS, station USC00027880. Records and recent months use complete months only.
How does September in Sierra Vista 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; Sierra Vista's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Sierra Vista in August90°F by day, 62°F at night
- Sierra Vista in October80°F by day, 47°F at night
- Sierra Vista 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