Amarillo weather in September: Amarillo, Texas: normal highs, lows, rain and records for September
Amarillo in September has a normal high of 84°F and a normal low of 58°F, a daily mean of 71°F, falling from 88°F on the 1st to 79°F by the 30th. Measurable precipitation falls on 6 days in a normal September, 1.69 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 14°C, 43 mm of precipitation in September.
- NOAA stationAmarillo Airport
- Station IDUSW00023047
- Location35.23°N 101.71°W
- Elevation3,587 ft (1,093 m)
- From the center7 miles
- Population203,729
- Jan 52° 25°
- Feb 56° 28°
- Mar 65° 35°
- Apr 72° 43°
- May 81° 53°
- Jun 90° 62°
- Jul 93° 66°
- Aug 91° 65°
- Sep 84° 58°
- Oct 73° 45°
- Nov 61° 34°
- Dec 52° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Amarillo in September?
The normal high is 84°F and the normal low 58°F, for a daily mean of 70.9°F. September is 7.2°F cooler than August and 11.7°F warmer than October. September is the 4th warmest month of the year in Amarillo and the 6th wettest. Across the month the normal high falls 9°F, from 88°F on September 1 to 79°F on September 30. From one year to the next September's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 68°F and 74°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 22%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 88°F | 63°F | 22% | 13% |
| September 8 | 86°F | 61°F | 21% | 12% |
| September 15 | 84°F | 58°F | 20% | 12% |
| September 22 | 82°F | 56°F | 19% | 12% |
| September 30 | 79°F | 52°F | 18% | 11% |
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 | 63°F | 22% | 13% | 13 h |
| September 2 | 88°F | 62°F | 22% | 13% | 13 h |
| September 3 | 88°F | 62°F | 22% | 13% | 12 h 50 min |
| September 4 | 88°F | 62°F | 21% | 13% | 12 h 50 min |
| September 5 | 87°F | 62°F | 21% | 13% | 12 h 50 min |
| September 6 | 87°F | 61°F | 21% | 12% | 12 h 50 min |
| September 7 | 87°F | 61°F | 21% | 12% | 12 h 40 min |
| September 8 | 86°F | 61°F | 21% | 12% | 12 h 40 min |
| September 9 | 86°F | 60°F | 21% | 12% | 12 h 40 min |
| September 10 | 86°F | 60°F | 21% | 12% | 12 h 40 min |
| September 11 | 86°F | 60°F | 20% | 12% | 12 h 40 min |
| September 12 | 85°F | 59°F | 20% | 12% | 12 h 30 min |
| September 13 | 85°F | 59°F | 20% | 12% | 12 h 30 min |
| September 14 | 85°F | 59°F | 20% | 12% | 12 h 30 min |
| September 15 | 84°F | 58°F | 20% | 12% | 12 h 30 min |
| September 16 | 84°F | 58°F | 20% | 12% | 12 h 20 min |
| September 17 | 84°F | 58°F | 20% | 12% | 12 h 20 min |
| September 18 | 83°F | 57°F | 20% | 12% | 12 h 20 min |
| September 19 | 83°F | 57°F | 20% | 12% | 12 h 20 min |
| September 20 | 83°F | 56°F | 20% | 12% | 12 h 20 min |
| September 21 | 82°F | 56°F | 20% | 12% | 12 h 10 min |
| September 22 | 82°F | 56°F | 19% | 12% | 12 h 10 min |
| September 23 | 82°F | 55°F | 19% | 12% | 12 h 10 min |
| September 24 | 81°F | 55°F | 19% | 12% | 12 h 10 min |
| September 25 | 81°F | 54°F | 19% | 12% | 12 h 10 min |
| September 26 | 81°F | 54°F | 19% | 11% | 12 h |
| September 27 | 80°F | 53°F | 19% | 11% | 12 h |
| September 28 | 80°F | 53°F | 19% | 11% | 12 h |
| September 29 | 80°F | 53°F | 19% | 11% | 12 h |
| September 30 | 79°F | 52°F | 18% | 11% | 11 h 50 min |
- Normal high
- 84°FSeptember average
- Normal low
- 58°FSeptember average
- Precipitation
- 1.69 inmonth total
- Days with precipitation
- 60.01 inch or more
- Days at 90°F or more
- 8
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 28
- Days at 80°F or more
- 21
- Sunshine
- 87%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023047; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Amarillo in September?
On a given September day the chance of 0.01 inch or more is 20% on average, highest around September 1 (22%). In all, 1.69 in falls on 6 days of a normal September.
In a normal September in Amarillo, 8 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023047.
How humid and windy is Amarillo in September?
At 3 p.m. the normal temperature is 77°F with 33% relative humidity and a dew point of 45°F; at 6 a.m. it is 54°F with 75% humidity. The wind averages 12.4 mph, most often from the south in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 54°F | 46°F | 75% | 10.3 mph | 72% |
| 9 a.m. | 62°F | 48°F | 59% | 13.5 mph | 65% |
| noon | 73°F | 47°F | 40% | 14.0 mph | 70% |
| 3 p.m. | 77°F | 45°F | 33% | 14.2 mph | 69% |
| 6 p.m. | 73°F | 45°F | 37% | 13.1 mph | 76% |
| 9 p.m. | 63°F | 47°F | 55% | 11.8 mph | 75% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023047. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Amarillo?
The warmest September temperature on Amarillo's official record (since 1892) is 105°F, on September 7, 2023; the coldest is 30°F, on September 30, 1984. The wettest September brought 7.79 in (2026).
The September mean against the 1991-2020 normal of 70.9°F: 2021 74.5°F (+3.5), 2022 74.2°F (+3.3), 2023 75.4°F (+4.5), 2024 74.2°F (+3.3), 2025 71.9°F (+1.0), 2026 78.2°F (+7.3). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.5°F | +3.5°F | 0.76 in |
| 2022 | 74.2°F | +3.3°F | 1.57 in |
| 2023 | 75.4°F | +4.5°F | 0.65 in |
| 2024 | 74.2°F | +3.3°F | 0.46 in |
| 2025 | 71.9°F | +1.0°F | 3.39 in |
| 2026 | 78.2°F | +7.3°F | 7.79 in |
Source: records: ACIS, NWS threaded record AMAthr; recent months: ACIS, station USW00023047. Records and recent months use complete months only.
How does September in Amarillo 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; Amarillo's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.