Lawrence weather in September: Lawrence, Kansas: normal highs, lows, rain and records for September
Lawrence in September has a normal high of 82°F and a normal low of 55°F, a daily mean of 69°F, falling from 87°F on the 1st to 76°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 13°C, 91 mm of precipitation in September.
- NOAA stationLawrence Municipal Airport
- Station IDUSW00003997
- Location39.01°N 95.21°W
- Elevation832 ft (254 m)
- From the center4 miles
- Population97,271
- Jan 41° 18°
- Feb 46° 22°
- Mar 58° 32°
- Apr 68° 42°
- May 77° 53°
- Jun 86° 64°
- Jul 91° 67°
- Aug 90° 65°
- Sep 82° 55°
- Oct 69° 44°
- Nov 56° 31°
- Dec 44° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lawrence in September?
The normal high is 82°F and the normal low 55°F, for a daily mean of 68.6°F. September is 8.9°F cooler than August and 12.1°F warmer than October. September is the 4th warmest month of the year in Lawrence and the 6th wettest. Across the month the normal high falls 11°F, from 87°F on September 1 to 76°F on September 30. From one year to the next September's mean temperature typically moves about 3.4°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 65°F and 72°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 87°F | 61°F | 35% | 19% |
| September 8 | 85°F | 58°F | 34% | 18% |
| September 15 | 82°F | 56°F | 34% | 18% |
| September 22 | 79°F | 53°F | 33% | 18% |
| September 30 | 76°F | 50°F | 32% | 17% |
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 | 61°F | 35% | 19% | 13 h |
| September 2 | 87°F | 61°F | 35% | 19% | 13 h |
| September 3 | 86°F | 60°F | 35% | 19% | 13 h |
| September 4 | 86°F | 60°F | 35% | 18% | 13 h |
| September 5 | 86°F | 59°F | 34% | 18% | 13 h |
| September 6 | 85°F | 59°F | 34% | 18% | 12 h 50 min |
| September 7 | 85°F | 59°F | 34% | 18% | 12 h 50 min |
| September 8 | 85°F | 58°F | 34% | 18% | 12 h 50 min |
| September 9 | 84°F | 58°F | 34% | 18% | 12 h 50 min |
| September 10 | 84°F | 58°F | 34% | 18% | 12 h 40 min |
| September 11 | 84°F | 57°F | 34% | 18% | 12 h 40 min |
| September 12 | 83°F | 57°F | 34% | 18% | 12 h 40 min |
| September 13 | 83°F | 56°F | 34% | 18% | 12 h 40 min |
| September 14 | 83°F | 56°F | 34% | 18% | 12 h 30 min |
| September 15 | 82°F | 56°F | 34% | 18% | 12 h 30 min |
| September 16 | 82°F | 55°F | 34% | 19% | 12 h 30 min |
| September 17 | 81°F | 55°F | 34% | 18% | 12 h 30 min |
| September 18 | 81°F | 54°F | 34% | 18% | 12 h 20 min |
| September 19 | 81°F | 54°F | 34% | 18% | 12 h 20 min |
| September 20 | 80°F | 54°F | 34% | 18% | 12 h 20 min |
| September 21 | 80°F | 53°F | 34% | 18% | 12 h 20 min |
| September 22 | 79°F | 53°F | 33% | 18% | 12 h 10 min |
| September 23 | 79°F | 53°F | 33% | 18% | 12 h 10 min |
| September 24 | 79°F | 52°F | 33% | 18% | 12 h 10 min |
| September 25 | 78°F | 52°F | 33% | 18% | 12 h 10 min |
| September 26 | 78°F | 51°F | 33% | 18% | 12 h |
| September 27 | 77°F | 51°F | 33% | 18% | 12 h |
| September 28 | 77°F | 51°F | 32% | 17% | 12 h |
| September 29 | 77°F | 50°F | 32% | 17% | 12 h |
| September 30 | 76°F | 50°F | 32% | 17% | 11 h 50 min |
- Normal high
- 82°FSeptember average
- Normal low
- 55°FSeptember average
- Precipitation
- 3.57 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
- 27
- Days at 80°F or more
- 19
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003997; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lawrence in September?
On a given September day the chance of 0.01 inch or more is 34% on average, highest around September 1 (35%). In all, 3.57 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Lawrence, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003997.
What are the records for September in Lawrence?
The warmest September temperature on this station's record (since 1996) is 110°F, on September 2, 2000; the coldest is 25°F, on September 14, 2007. The wettest September brought 7.28 in (2008).
The September mean against the 1991-2020 normal of 68.6°F: 2021 72.6°F (+4.0), 2022 70.2°F (+1.6), 2023 72.1°F (+3.5), 2024 69.2°F (+0.6), 2025 69.5°F (+0.9), 2026 76.4°F (+7.8). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.6°F | +4.0°F | 4.43 in |
| 2022 | 70.2°F | +1.6°F | 0.27 in |
| 2023 | 72.1°F | +3.5°F | 1.73 in |
| 2024 | 69.2°F | +0.6°F | 0.72 in |
| 2025 | 69.5°F | +0.9°F | 1.51 in |
| 2026 | 76.4°F | +7.8°F | 5.81 in |
Source: records: ACIS, station USW00003997; recent months: ACIS, station USW00003997. Records and recent months use complete months only.
How does September in Lawrence compare across Kansas?
Across the 137 places PlainClimate covers in Kansas, September normal highs run from 78°F in Bonner Springs to 86°F in Sublette; Lawrence's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.