Climateby Month

Amarillo, TX weather in September

NOAA 1991-2020 normals and daily records · Amarillo all year

Expect warm, mostly dry weather in Amarillo in September, with highs near 84°F and lows near 58°F. Rain falls on about 6 days.

Normal high
84°F
Normal low
58°F
Wet days
6
1.7 in total
Muggy days
0
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high88°F79°F
Normal low63°F52°F
Chance of a wet day21%19%
Sunrise / sunset7:19 am / 8:14 pm7:41 am / 7:33 pm
Daylight12.9 h11.9 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical September day

  1. 6 am59°Fdew point 53°F
  2. 9 am67°Fdew point 54°F
  3. Noon77°Fdew point 53°F
  4. 3 pm81°Fdew point 51°F
  5. 6 pm78°Fdew point 51°F
  6. 9 pm68°Fdew point 52°F

NOAA hourly normals (local standard time) from Amarillo (7 mi away); average wind 12 mph; clear or few clouds in 65% of daytime hours, mostly cloudy or overcast in 24%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F8 of 30
  • Hot dayshigh 90°F or more8 of 30
  • Muggy daysdaily mean dew point 65°F or more0 of 30
  • Wet daysat least 0.01 in of rain or melted snow6 of 30
  • Notable rainat least 0.10 in3 of 30
  • Freezing nightslow 32°F or below0 of 30
  • Snow on the groundsnow depth 1 in or more0 of 30

Average days per September, counted from daily records for each year 1991-2020.

Rain in September

Normal precipitation is 1.7 in; a dry September brings about 0.9 in and a wet one about 2.4 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202000: average high 90°F
  • Coolest September2006: average high 76°F
  • Wettest September2014: 4.2 in
  • Driest September2000: 0.03 in
  • Highest reading103°F (September 5, 1995)
  • Lowest reading33°F (September 25, 2000)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

September compared with August and October

AugustSeptemberOctober
Normal high91°F84°F73°F
Normal low65°F58°F45°F
Wet days865
Comfortable days1815
Daylight13.4 h12.4 h11.3 h

Highs change by -7°F from August and -11°F into October.

Nearby alternatives in September

How Amarillo ranks in September

  • Normal high145th warmest of 378 cities; 38th of 38 in Texas
  • Wet days100th driest of 378
  • Comfortable days180th most of 342

What to pack for Amarillo in September

  • Layers – afternoons near 84°F but nights near 58°F

Heating and cooling

September has 31 heating degree days and 208 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Amarillo in September?

The normal high is 84°F and the normal low is 58°F. From 1991 to 2020 the hottest September reading was 103°F (September 5, 1995).

Does it rain a lot in Amarillo in September?

About 6 days in September have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest September in 1991-2020 was in 2014 (4.2 in); the driest was in 2000 (0.03 in).

Is September a good time to visit Amarillo?

September ranks 7th of 12 months on our comfort score for Amarillo (56 out of 100). It has about 8 comfortable days and about 8 days at 90°F or hotter. The best month is April.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Amarillo (USW00023047), 7.0 mi E of the city center, 3,587 ft (83 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Amarillo Rick Husband Intl Airport (723630-23047), 6.5 mi E of the city center, 3,607 ft (63 ft lower than the city). Hourly observations, 1991-2020.