Natchez weather in September: Natchez, Mississippi: normal highs, lows, rain and records for September
Natchez in September has a normal high of 86°F and a normal low of 65°F, a daily mean of 75°F, falling from 88°F on the 1st to 82°F by the 30th. Measurable precipitation falls on 7 days in a normal September, 4.14 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 18°C, 105 mm of precipitation in September.
- NOAA stationNatchez
- Station IDUSC00226177
- Location31.59°N 91.34°W
- Elevation195 ft (59 m)
- Population14,233
- Jan 57° 36°
- Feb 61° 39°
- Mar 68° 47°
- Apr 75° 53°
- May 82° 62°
- Jun 87° 69°
- Jul 90° 71°
- Aug 89° 71°
- Sep 86° 65°
- Oct 77° 53°
- Nov 67° 43°
- Dec 59° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Natchez in September?
The normal high is 86°F and the normal low 65°F, for a daily mean of 75.1°F. September is 4.8°F cooler than August and 10.0°F warmer than October. September is the 4th warmest month of the year in Natchez and the 11th wettest. Across the month the normal high falls 6°F, from 88°F on September 1 to 82°F on September 30. From one year to the next September's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 73°F and 77°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 88°F | 69°F | 30% | 20% |
| September 8 | 87°F | 67°F | 28% | 18% |
| September 15 | 86°F | 65°F | 25% | 16% |
| September 22 | 84°F | 63°F | 22% | 15% |
| September 30 | 82°F | 60°F | 20% | 13% |
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 | 88°F | 69°F | 30% | 20% | 12 h 50 min |
| September 2 | 88°F | 68°F | 30% | 20% | 12 h 50 min |
| September 3 | 88°F | 68°F | 30% | 20% | 12 h 50 min |
| September 4 | 88°F | 68°F | 29% | 20% | 12 h 40 min |
| September 5 | 88°F | 68°F | 29% | 19% | 12 h 40 min |
| September 6 | 87°F | 68°F | 28% | 19% | 12 h 40 min |
| September 7 | 87°F | 67°F | 28% | 19% | 12 h 40 min |
| September 8 | 87°F | 67°F | 28% | 18% | 12 h 40 min |
| September 9 | 87°F | 67°F | 27% | 18% | 12 h 40 min |
| September 10 | 87°F | 67°F | 27% | 18% | 12 h 30 min |
| September 11 | 87°F | 66°F | 26% | 17% | 12 h 30 min |
| September 12 | 86°F | 66°F | 26% | 17% | 12 h 30 min |
| September 13 | 86°F | 66°F | 26% | 17% | 12 h 30 min |
| September 14 | 86°F | 66°F | 25% | 17% | 12 h 30 min |
| September 15 | 86°F | 65°F | 25% | 16% | 12 h 20 min |
| September 16 | 86°F | 65°F | 24% | 16% | 12 h 20 min |
| September 17 | 85°F | 65°F | 24% | 16% | 12 h 20 min |
| September 18 | 85°F | 64°F | 24% | 16% | 12 h 20 min |
| September 19 | 85°F | 64°F | 23% | 15% | 12 h 20 min |
| September 20 | 85°F | 64°F | 23% | 15% | 12 h 10 min |
| September 21 | 85°F | 63°F | 23% | 15% | 12 h 10 min |
| September 22 | 84°F | 63°F | 22% | 15% | 12 h 10 min |
| September 23 | 84°F | 63°F | 22% | 15% | 12 h 10 min |
| September 24 | 84°F | 62°F | 22% | 14% | 12 h 10 min |
| September 25 | 84°F | 62°F | 21% | 14% | 12 h 10 min |
| September 26 | 83°F | 61°F | 21% | 14% | 12 h |
| September 27 | 83°F | 61°F | 21% | 14% | 12 h |
| September 28 | 83°F | 61°F | 21% | 14% | 12 h |
| September 29 | 82°F | 60°F | 20% | 13% | 12 h |
| September 30 | 82°F | 60°F | 20% | 13% | 12 h |
- Normal high
- 86°FSeptember average
- Normal low
- 65°FSeptember average
- Precipitation
- 4.14 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 10
- 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
- 27
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00226177; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Natchez in September?
On a given September day the chance of 0.01 inch or more is 25% on average, highest around September 1 (30%). In all, 4.14 in falls on 7 days of a normal September, 1 of them with an inch or more.
In a normal September in Natchez, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00226177.
What are the records for September in Natchez?
The warmest September temperature on this station's record (since 1892) is 105°F, on September 6, 1925; the coldest is 40°F, on September 29, 1967. The wettest September brought 14.83 in (2008).
The September mean against the 1991-2020 normal of 75.1°F: 2021 74.4°F (−0.7), 2023 77.7°F (+2.6), 2024 74.6°F (−0.5), 2025 76.7°F (+1.6), 2026 81.7°F (+6.6). 3 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.4°F | −0.7°F | 6.79 in |
| 2023 | 77.7°F | +2.6°F | 1.68 in |
| 2024 | 74.6°F | −0.5°F | 6.32 in |
| 2025 | 76.7°F | +1.6°F | 1.81 in |
| 2026 | 81.7°F | +6.6°F | 0.20 in |
Source: records: ACIS, station USC00226177; recent months: ACIS, station USC00226177. Records and recent months use complete months only.
How does September in Natchez compare across Mississippi?
Across the 81 places PlainClimate covers in Mississippi, September normal highs run from 83°F in Holly Springs to 91°F in Monticello; Natchez's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.