Moncks Corner weather in September: Moncks Corner, South Carolina: normal highs, lows, rain and records for September
Moncks Corner in September has a normal high of 86°F and a normal low of 67°F, a daily mean of 77°F, falling from 89°F on the 1st to 83°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 5.82 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 20°C, 148 mm of precipitation in September.
- NOAA stationMoncks Corner (4 mi N)
- Station IDUSC00385946
- Location33.24°N 79.99°W
- Elevation49 ft (15 m)
- Population18,359
- Jan 59° 38°
- Feb 62° 41°
- Mar 69° 46°
- Apr 78° 53°
- May 84° 62°
- Jun 90° 70°
- Jul 93° 74°
- Aug 91° 72°
- Sep 86° 67°
- Oct 78° 57°
- Nov 68° 47°
- Dec 61° 41°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Moncks Corner in September?
The normal high is 86°F and the normal low 67°F, for a daily mean of 76.7°F. September is 5.1°F cooler than August and 9.5°F warmer than October. September is the 4th warmest month of the year in Moncks Corner and the 3rd wettest. Across the month the normal high falls 6°F, from 89°F on September 1 to 83°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 75°F and 78°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 71°F | 32% | 23% |
| September 8 | 88°F | 69°F | 30% | 21% |
| September 15 | 86°F | 68°F | 30% | 20% |
| September 22 | 85°F | 66°F | 29% | 19% |
| September 30 | 83°F | 63°F | 28% | 18% |
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 | 71°F | 32% | 23% | 12 h 50 min |
| September 2 | 89°F | 71°F | 32% | 23% | 12 h 50 min |
| September 3 | 89°F | 70°F | 31% | 23% | 12 h 50 min |
| September 4 | 88°F | 70°F | 31% | 22% | 12 h 50 min |
| September 5 | 88°F | 70°F | 31% | 22% | 12 h 50 min |
| September 6 | 88°F | 70°F | 31% | 22% | 12 h 40 min |
| September 7 | 88°F | 70°F | 31% | 21% | 12 h 40 min |
| September 8 | 88°F | 69°F | 30% | 21% | 12 h 40 min |
| September 9 | 88°F | 69°F | 30% | 21% | 12 h 40 min |
| September 10 | 87°F | 69°F | 30% | 20% | 12 h 40 min |
| September 11 | 87°F | 69°F | 30% | 20% | 12 h 30 min |
| September 12 | 87°F | 69°F | 30% | 20% | 12 h 30 min |
| September 13 | 87°F | 68°F | 30% | 20% | 12 h 30 min |
| September 14 | 87°F | 68°F | 30% | 20% | 12 h 30 min |
| September 15 | 86°F | 68°F | 30% | 20% | 12 h 30 min |
| September 16 | 86°F | 68°F | 30% | 19% | 12 h 20 min |
| September 17 | 86°F | 67°F | 29% | 19% | 12 h 20 min |
| September 18 | 86°F | 67°F | 29% | 19% | 12 h 20 min |
| September 19 | 85°F | 67°F | 29% | 19% | 12 h 20 min |
| September 20 | 85°F | 66°F | 29% | 19% | 12 h 20 min |
| September 21 | 85°F | 66°F | 29% | 19% | 12 h 10 min |
| September 22 | 85°F | 66°F | 29% | 19% | 12 h 10 min |
| September 23 | 84°F | 66°F | 29% | 19% | 12 h 10 min |
| September 24 | 84°F | 65°F | 29% | 19% | 12 h 10 min |
| September 25 | 84°F | 65°F | 29% | 19% | 12 h 10 min |
| September 26 | 84°F | 65°F | 29% | 19% | 12 h |
| September 27 | 83°F | 64°F | 29% | 18% | 12 h |
| September 28 | 83°F | 64°F | 29% | 18% | 12 h |
| September 29 | 83°F | 64°F | 28% | 18% | 12 h |
| September 30 | 83°F | 63°F | 28% | 18% | 11 h 50 min |
- Normal high
- 86°FSeptember average
- Normal low
- 67°FSeptember average
- Precipitation
- 5.82 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 10
- 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
- 27
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00385946; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Moncks Corner in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 1 (32%). In all, 5.82 in falls on 9 days of a normal September, 2 of them with an inch or more.
In a normal September in Moncks Corner, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00385946.
What are the records for September in Moncks Corner?
The September mean against the 1991-2020 normal of 76.7°F: 2022 76.3°F (−0.4), 2023 74.6°F (−2.1), 2024 75.9°F (−0.8), 2025 74.8°F (−1.9), 2026 77.1°F (+0.4). 1 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 76.3°F | −0.4°F | 1.43 in |
| 2023 | 74.6°F | −2.1°F | 3.32 in |
| 2024 | 75.9°F | −0.8°F | 3.41 in |
| 2025 | 74.8°F | −1.9°F | 2.54 in |
| 2026 | 77.1°F | +0.4°F | 1.16 in |
Source: recent months: ACIS, station USC00385946. Records and recent months use complete months only.
How does September in Moncks Corner compare across South Carolina?
Across the 73 places PlainClimate covers in South Carolina, September normal highs run from 71°F in Caesars Head to 87°F in Barnwell; Moncks Corner's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Moncks Corner in August91°F by day, 72°F at night
- Moncks Corner in October78°F by day, 57°F at night
- Moncks Corner through the yearEvery month, frost dates, records and recent years
- South Carolina in SeptemberThe statewide normal and the warmest and coolest places
- Barnwell: South Carolina's warmest Septembernormal high 87°F