London weather in September: London, Kentucky: normal highs, lows, rain and records for September
London in September has a normal high of 80°F and a normal low of 58°F, a daily mean of 69°F, falling from 84°F on the 1st to 75°F by the 30th. Measurable precipitation falls on 8 days in a normal September, 3.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 14°C, 90 mm of precipitation in September.
- NOAA stationLondon Corbin Airport
- Station IDUSW00003849
- Location37.09°N 84.08°W
- Elevation1,188 ft (362 m)
- Population7,573
- Jan 45° 27°
- Feb 50° 30°
- Mar 58° 36°
- Apr 69° 45°
- May 77° 54°
- Jun 84° 62°
- Jul 86° 66°
- Aug 86° 65°
- Sep 80° 58°
- Oct 70° 45°
- Nov 58° 36°
- Dec 49° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is London in September?
The normal high is 80°F and the normal low 58°F, for a daily mean of 68.8°F. September is 6.4°F cooler than August and 11.3°F warmer than October. September is the 4th warmest month of the year in London and the 10th wettest. Across the month the normal high falls 9°F, from 84°F on September 1 to 75°F on September 30. From one year to the next September's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 66°F and 71°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 | 84°F | 62°F | 30% | 19% |
| September 8 | 82°F | 60°F | 28% | 18% |
| September 15 | 80°F | 58°F | 27% | 18% |
| September 22 | 78°F | 55°F | 27% | 18% |
| September 30 | 75°F | 52°F | 27% | 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 | 84°F | 62°F | 30% | 19% | 13 h |
| September 2 | 84°F | 62°F | 30% | 19% | 13 h |
| September 3 | 84°F | 62°F | 29% | 19% | 13 h |
| September 4 | 83°F | 62°F | 29% | 19% | 12 h 50 min |
| September 5 | 83°F | 61°F | 29% | 18% | 12 h 50 min |
| September 6 | 83°F | 61°F | 29% | 18% | 12 h 50 min |
| September 7 | 83°F | 61°F | 28% | 18% | 12 h 50 min |
| September 8 | 82°F | 60°F | 28% | 18% | 12 h 40 min |
| September 9 | 82°F | 60°F | 28% | 18% | 12 h 40 min |
| September 10 | 82°F | 60°F | 28% | 18% | 12 h 40 min |
| September 11 | 82°F | 59°F | 28% | 18% | 12 h 40 min |
| September 12 | 81°F | 59°F | 27% | 18% | 12 h 40 min |
| September 13 | 81°F | 59°F | 27% | 18% | 12 h 30 min |
| September 14 | 81°F | 58°F | 27% | 18% | 12 h 30 min |
| September 15 | 80°F | 58°F | 27% | 18% | 12 h 30 min |
| September 16 | 80°F | 58°F | 27% | 18% | 12 h 30 min |
| September 17 | 80°F | 57°F | 27% | 18% | 12 h 20 min |
| September 18 | 79°F | 57°F | 27% | 18% | 12 h 20 min |
| September 19 | 79°F | 57°F | 27% | 18% | 12 h 20 min |
| September 20 | 79°F | 56°F | 27% | 18% | 12 h 20 min |
| September 21 | 78°F | 56°F | 27% | 18% | 12 h 10 min |
| September 22 | 78°F | 55°F | 27% | 18% | 12 h 10 min |
| September 23 | 78°F | 55°F | 27% | 18% | 12 h 10 min |
| September 24 | 77°F | 55°F | 27% | 18% | 12 h 10 min |
| September 25 | 77°F | 54°F | 27% | 18% | 12 h 10 min |
| September 26 | 77°F | 54°F | 27% | 18% | 12 h |
| September 27 | 76°F | 53°F | 27% | 18% | 12 h |
| September 28 | 76°F | 53°F | 27% | 18% | 12 h |
| September 29 | 76°F | 52°F | 27% | 18% | 12 h |
| September 30 | 75°F | 52°F | 27% | 18% | 11 h 50 min |
- Normal high
- 80°FSeptember average
- Normal low
- 58°FSeptember average
- Precipitation
- 3.55 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 17
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003849; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in London in September?
On a given September day the chance of 0.01 inch or more is 28% on average, highest around September 1 (30%). In all, 3.55 in falls on 8 days of a normal September, 1 of them with an inch or more.
In a normal September in London, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003849.
What are the records for September in London?
The warmest September temperature on this station's record (since 1954) is 97°F, on September 5, 2007; the coldest is 32°F, on September 24, 1983. The wettest September brought 8.50 in (2004).
The September mean against the 1991-2020 normal of 68.8°F: 2021 68.6°F (−0.2), 2022 67.0°F (−1.8), 2023 69.5°F (+0.7), 2024 69.5°F (+0.7), 2025 69.3°F (+0.5), 2026 74.7°F (+5.9). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 68.6°F | −0.2°F | 2.58 in |
| 2022 | 67.0°F | −1.8°F | 2.09 in |
| 2023 | 69.5°F | +0.7°F | 1.70 in |
| 2024 | 69.5°F | +0.7°F | 4.01 in |
| 2025 | 69.3°F | +0.5°F | 4.76 in |
| 2026 | 74.7°F | +5.9°F | 0.88 in |
Source: records: ACIS, station USW00003849; recent months: ACIS, station USW00003849. Records and recent months use complete months only.
How does September in London compare across Kentucky?
Across the 68 places PlainClimate covers in Kentucky, September normal highs run from 76°F in Olive Hill to 85°F in Eddyville; London's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.