Granbury weather in September: Granbury, Texas: normal highs, lows, rain and records for September
Granbury in September has a normal high of 89°F and a normal low of 65°F, a daily mean of 77°F, falling from 93°F on the 1st to 85°F by the 30th. The month brings 3.01 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 18°C, 76 mm of precipitation in September.
- NOAA stationGranbury (5 mi N)
- Station IDUSC00413675
- Location32.52°N 97.81°W
- Elevation779 ft (237 m)
- Population12,934
- Jan 57° 31°
- Feb 62° 36°
- Mar 69° 44°
- Apr 77° 51°
- May 83° 61°
- Jun 92° 70°
- Jul 97° 74°
- Aug 96° 72°
- Sep 89° 65°
- Oct 79° 53°
- Nov 67° 42°
- Dec 58° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Granbury in September?
The normal high is 89°F and the normal low 65°F, for a daily mean of 77.0°F. September is 7.1°F cooler than August and 11.4°F warmer than October. September is the 4th warmest month of the year in Granbury and the 6th wettest. Across the month the normal high falls 8°F, from 93°F on September 1 to 85°F on September 30. From one year to the next September's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 75°F and 79°F.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 93°F | 69°F | – | – |
| September 8 | 92°F | 68°F | – | – |
| September 15 | 90°F | 65°F | – | – |
| September 22 | 88°F | 63°F | – | – |
| September 30 | 85°F | 59°F | – | – |
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 | 93°F | 69°F | – | – | 12 h 50 min |
| September 2 | 93°F | 69°F | – | – | 12 h 50 min |
| September 3 | 93°F | 69°F | – | – | 12 h 50 min |
| September 4 | 93°F | 69°F | – | – | 12 h 50 min |
| September 5 | 92°F | 68°F | – | – | 12 h 40 min |
| September 6 | 92°F | 68°F | – | – | 12 h 40 min |
| September 7 | 92°F | 68°F | – | – | 12 h 40 min |
| September 8 | 92°F | 68°F | – | – | 12 h 40 min |
| September 9 | 91°F | 67°F | – | – | 12 h 40 min |
| September 10 | 91°F | 67°F | – | – | 12 h 30 min |
| September 11 | 91°F | 67°F | – | – | 12 h 30 min |
| September 12 | 90°F | 66°F | – | – | 12 h 30 min |
| September 13 | 90°F | 66°F | – | – | 12 h 30 min |
| September 14 | 90°F | 66°F | – | – | 12 h 30 min |
| September 15 | 90°F | 65°F | – | – | 12 h 30 min |
| September 16 | 89°F | 65°F | – | – | 12 h 20 min |
| September 17 | 89°F | 65°F | – | – | 12 h 20 min |
| September 18 | 89°F | 64°F | – | – | 12 h 20 min |
| September 19 | 88°F | 64°F | – | – | 12 h 20 min |
| September 20 | 88°F | 63°F | – | – | 12 h 20 min |
| September 21 | 88°F | 63°F | – | – | 12 h 10 min |
| September 22 | 88°F | 63°F | – | – | 12 h 10 min |
| September 23 | 87°F | 62°F | – | – | 12 h 10 min |
| September 24 | 87°F | 62°F | – | – | 12 h 10 min |
| September 25 | 87°F | 61°F | – | – | 12 h 10 min |
| September 26 | 86°F | 61°F | – | – | 12 h |
| September 27 | 86°F | 61°F | – | – | 12 h |
| September 28 | 86°F | 60°F | – | – | 12 h |
| September 29 | 85°F | 60°F | – | – | 12 h |
| September 30 | 85°F | 59°F | – | – | 12 h |
- Normal high
- 89°FSeptember average
- Normal low
- 65°FSeptember average
- Precipitation
- 3.01 inmonth total
- Days at 90°F or more
- 17
- 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
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00413675; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Granbury in September?
In a normal September in Granbury, 17 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00413675.
What are the records for September in Granbury?
The September mean against the 1991-2020 normal of 77.0°F: 2021 77.7°F (+0.7), 2022 78.7°F (+1.7), 2025 78.7°F (+1.7). 3 of 3 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 77.7°F | +0.7°F | 0.38 in |
| 2022 | 78.7°F | +1.7°F | 2.18 in |
| 2025 | 78.7°F | +1.7°F | 1.58 in |
Source: recent months: ACIS, station USC00413675. Records and recent months use complete months only.
How does September in Granbury compare across Texas?
Across the 321 places PlainClimate covers in Texas, September normal highs run from 81°F in Hart to 95°F in Presidio; Granbury's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.