Lawton weather in September: Lawton, Oklahoma: normal highs, lows, rain and records for September
Lawton in September has a normal high of 88°F and a normal low of 63°F, a daily mean of 75°F, falling from 92°F on the 1st to 83°F by the 30th. Measurable precipitation falls on 5 days in a normal September, 2.80 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 17°C, 71 mm of precipitation in September.
- NOAA stationLawton Municipal Airport
- Station IDUSW00003950
- Location34.56°N 98.42°W
- Elevation1,069 ft (326 m)
- Population90,027
- Jan 54° 27°
- Feb 58° 32°
- Mar 67° 41°
- Apr 75° 49°
- May 83° 59°
- Jun 92° 68°
- Jul 97° 72°
- Aug 96° 71°
- Sep 88° 63°
- Oct 77° 50°
- Nov 64° 38°
- Dec 54° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lawton in September?
The normal high is 88°F and the normal low 63°F, for a daily mean of 75.1°F. September is 8.5°F cooler than August and 11.7°F warmer than October. September is the 4th warmest month of the year in Lawton and the 4th wettest. Across the month the normal high falls 9°F, from 92°F on September 1 to 83°F on September 30. From one year to the next September's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 72°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 20%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 92°F | 68°F | 19% | 12% |
| September 8 | 90°F | 65°F | 19% | 12% |
| September 15 | 88°F | 63°F | 19% | 12% |
| September 22 | 85°F | 60°F | 19% | 12% |
| September 30 | 83°F | 57°F | 20% | 12% |
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 | 92°F | 68°F | 19% | 12% | 13 h |
| September 2 | 92°F | 67°F | 19% | 12% | 12 h 50 min |
| September 3 | 92°F | 67°F | 19% | 12% | 12 h 50 min |
| September 4 | 91°F | 67°F | 19% | 12% | 12 h 50 min |
| September 5 | 91°F | 66°F | 19% | 12% | 12 h 50 min |
| September 6 | 91°F | 66°F | 19% | 12% | 12 h 50 min |
| September 7 | 91°F | 66°F | 19% | 12% | 12 h 40 min |
| September 8 | 90°F | 65°F | 19% | 12% | 12 h 40 min |
| September 9 | 90°F | 65°F | 19% | 12% | 12 h 40 min |
| September 10 | 90°F | 65°F | 19% | 12% | 12 h 40 min |
| September 11 | 89°F | 64°F | 19% | 12% | 12 h 40 min |
| September 12 | 89°F | 64°F | 19% | 12% | 12 h 30 min |
| September 13 | 89°F | 64°F | 19% | 12% | 12 h 30 min |
| September 14 | 88°F | 63°F | 19% | 12% | 12 h 30 min |
| September 15 | 88°F | 63°F | 19% | 12% | 12 h 30 min |
| September 16 | 88°F | 63°F | 19% | 12% | 12 h 20 min |
| September 17 | 87°F | 62°F | 19% | 12% | 12 h 20 min |
| September 18 | 87°F | 62°F | 19% | 12% | 12 h 20 min |
| September 19 | 87°F | 61°F | 19% | 12% | 12 h 20 min |
| September 20 | 86°F | 61°F | 19% | 12% | 12 h 20 min |
| September 21 | 86°F | 61°F | 19% | 12% | 12 h 10 min |
| September 22 | 85°F | 60°F | 19% | 12% | 12 h 10 min |
| September 23 | 85°F | 60°F | 19% | 12% | 12 h 10 min |
| September 24 | 85°F | 60°F | 20% | 12% | 12 h 10 min |
| September 25 | 84°F | 59°F | 20% | 12% | 12 h 10 min |
| September 26 | 84°F | 59°F | 20% | 12% | 12 h |
| September 27 | 84°F | 58°F | 20% | 12% | 12 h |
| September 28 | 83°F | 58°F | 20% | 12% | 12 h |
| September 29 | 83°F | 57°F | 20% | 12% | 12 h |
| September 30 | 83°F | 57°F | 20% | 12% | 11 h 50 min |
- Normal high
- 88°FSeptember average
- Normal low
- 63°FSeptember average
- Precipitation
- 2.80 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 15
- 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
- 26
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003950; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lawton in September?
On a given September day the chance of 0.01 inch or more is 19% on average, highest around September 30 (20%). In all, 2.80 in falls on 5 days of a normal September, 1 of them with an inch or more.
In a normal September in Lawton, 15 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003950.
What are the records for September in Lawton?
The warmest September temperature on Lawton's official record (since 1912) is 111°F, on September 8, 2023; the coldest is 35°F, on September 26, 1912. The wettest September brought 9.08 in (1945).
The September mean against the 1991-2020 normal of 75.1°F: 2021 77.3°F (+2.3), 2022 78.0°F (+2.9), 2023 80.1°F (+5.0), 2024 78.1°F (+3.0), 2025 76.0°F (+0.9), 2026 85.8°F (+10.7). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 77.3°F | +2.3°F | 1.72 in |
| 2022 | 78.0°F | +2.9°F | 0.05 in |
| 2023 | 80.1°F | +5.0°F | 1.85 in |
| 2024 | 78.1°F | +3.0°F | 2.60 in |
| 2025 | 76.0°F | +0.9°F | 2.02 in |
| 2026 | 85.8°F | +10.7°F | 0.54 in |
Source: records: ACIS, NWS threaded record LAWthr; recent months: ACIS, station USW00003950. Records and recent months use complete months only.
How does September in Lawton compare across Oklahoma?
Across the 134 places PlainClimate covers in Oklahoma, September normal highs run from 82°F in Arnett to 89°F in Grandfield; Lawton's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.