Gastonia weather in September: Gastonia, North Carolina: normal highs, lows, rain and records for September
Gastonia in September has a normal high of 83°F and a normal low of 63°F, a daily mean of 73°F, falling from 87°F on the 1st to 79°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.75 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 17°C, 95 mm of precipitation in September.
- NOAA stationGastonia Municipal Airport
- Station IDUSW00053870
- Location35.20°N 81.16°W
- Elevation797 ft (243 m)
- Population85,535
- Jan 53° 33°
- Feb 58° 36°
- Mar 65° 42°
- Apr 74° 50°
- May 81° 58°
- Jun 88° 67°
- Jul 91° 70°
- Aug 89° 69°
- Sep 83° 63°
- Oct 74° 51°
- Nov 64° 41°
- Dec 56° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Gastonia in September?
The normal high is 83°F and the normal low 63°F, for a daily mean of 73.2°F. September is 6.0°F cooler than August and 10.5°F warmer than October. September is the 4th warmest month of the year in Gastonia and the 5th wettest. Across the month the normal high falls 8°F, from 87°F on September 1 to 79°F on September 30. From one year to the next September's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 70°F and 76°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 87°F | 67°F | 34% | 18% |
| September 8 | 85°F | 65°F | 32% | 17% |
| September 15 | 84°F | 64°F | 32% | 17% |
| September 22 | 82°F | 61°F | 32% | 17% |
| September 30 | 79°F | 58°F | 32% | 16% |
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 | 87°F | 67°F | 34% | 18% | 13 h |
| September 2 | 87°F | 67°F | 33% | 18% | 13 h |
| September 3 | 87°F | 67°F | 33% | 18% | 12 h 50 min |
| September 4 | 86°F | 66°F | 33% | 18% | 12 h 50 min |
| September 5 | 86°F | 66°F | 33% | 18% | 12 h 50 min |
| September 6 | 86°F | 66°F | 33% | 17% | 12 h 50 min |
| September 7 | 86°F | 66°F | 32% | 17% | 12 h 40 min |
| September 8 | 85°F | 65°F | 32% | 17% | 12 h 40 min |
| September 9 | 85°F | 65°F | 32% | 17% | 12 h 40 min |
| September 10 | 85°F | 65°F | 32% | 17% | 12 h 40 min |
| September 11 | 85°F | 65°F | 32% | 17% | 12 h 40 min |
| September 12 | 84°F | 64°F | 32% | 17% | 12 h 30 min |
| September 13 | 84°F | 64°F | 32% | 17% | 12 h 30 min |
| September 14 | 84°F | 64°F | 32% | 17% | 12 h 30 min |
| September 15 | 84°F | 64°F | 32% | 17% | 12 h 30 min |
| September 16 | 83°F | 63°F | 32% | 17% | 12 h 20 min |
| September 17 | 83°F | 63°F | 32% | 17% | 12 h 20 min |
| September 18 | 83°F | 63°F | 32% | 17% | 12 h 20 min |
| September 19 | 82°F | 62°F | 32% | 17% | 12 h 20 min |
| September 20 | 82°F | 62°F | 32% | 17% | 12 h 20 min |
| September 21 | 82°F | 62°F | 32% | 17% | 12 h 10 min |
| September 22 | 82°F | 61°F | 32% | 17% | 12 h 10 min |
| September 23 | 81°F | 61°F | 32% | 17% | 12 h 10 min |
| September 24 | 81°F | 61°F | 32% | 17% | 12 h 10 min |
| September 25 | 81°F | 60°F | 33% | 17% | 12 h 10 min |
| September 26 | 80°F | 60°F | 33% | 17% | 12 h |
| September 27 | 80°F | 59°F | 33% | 17% | 12 h |
| September 28 | 80°F | 59°F | 33% | 17% | 12 h |
| September 29 | 80°F | 59°F | 32% | 16% | 12 h |
| September 30 | 79°F | 58°F | 32% | 16% | 11 h 50 min |
- Normal high
- 83°FSeptember average
- Normal low
- 63°FSeptember average
- Precipitation
- 3.75 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 6
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 29
- Days at 80°F or more
- 21
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053870; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Gastonia in September?
On a given September day the chance of 0.01 inch or more is 32% on average, highest around September 1 (34%). In all, 3.75 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Gastonia, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053870.
What are the records for September in Gastonia?
The warmest September temperature on this station's record (since 1999) is 100°F, on September 12, 2019; the coldest is 40°F, on September 23, 1999. The wettest September brought 8.92 in (2024).
The September mean against the 1991-2020 normal of 73.2°F: 2021 70.4°F (−2.8), 2022 71.1°F (−2.1), 2023 71.4°F (−1.8), 2024 72.3°F (−0.9), 2025 71.2°F (−2.0), 2026 75.2°F (+2.0). 1 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.4°F | −2.8°F | 1.49 in |
| 2022 | 71.1°F | −2.1°F | 5.69 in |
| 2023 | 71.4°F | −1.8°F | 1.67 in |
| 2024 | 72.3°F | −0.9°F | 8.92 in |
| 2025 | 71.2°F | −2.0°F | – |
| 2026 | 75.2°F | +2.0°F | 3.40 in |
Source: records: ACIS, station USW00053870; recent months: ACIS, station USW00053870. Records and recent months use complete months only.
How does September in Gastonia compare across North Carolina?
Across the 131 places PlainClimate covers in North Carolina, September normal highs run from 63°F in Beech Mountain to 87°F in Southport; Gastonia's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Gastonia in August89°F by day, 69°F at night
- Gastonia in October74°F by day, 51°F at night
- Gastonia through the yearEvery month, frost dates, records and recent years
- North Carolina in SeptemberThe statewide normal and the warmest and coolest places
- Southport: North Carolina's warmest Septembernormal high 87°F