Climateby Month

College Station, TX weather in September

NOAA 1991-2020 normals and daily records · College Station all year

College Station is hot in September, with some rain: highs average 91°F and nights drop to about 70°F. Expect about 7 wet days. Midday heat is the main thing to plan around.

Normal high
91°F
Normal low
70°F
Wet days
7
3.5 in total
Daylight
12.3 h

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high95°F87°F
Normal low73°F66°F
Chance of a wet day24%22%
Sunrise / sunset7:01 am / 7:48 pm7:18 am / 7:12 pm
Daylight12.8 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).

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)2 of 30
  • Hot dayshigh 90°F or more20 of 30
  • Wet daysat least 0.01 in of rain or melted snow7 of 30
  • Notable rainat least 0.10 in5 of 30
  • Freezing nightslow 32°F or below0 of 30

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

Rain in September

Normal precipitation is 3.5 in; a dry September brings about 1.5 in and a wet one about 5.7 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202011: average high 97°F
  • Coolest September2003: average high 85°F
  • Wettest September2001: 8.8 in
  • Driest September2005: no measurable precipitation
  • Highest reading112°F (September 4, 2000)
  • Lowest reading46°F (September 26, 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 high97°F91°F82°F
Normal low75°F70°F60°F
Wet days677
Comfortable days0210
Daylight13.2 h12.3 h11.4 h

Highs change by -6°F from August and -9°F into October.

How College Station ranks in September

  • Normal high35th warmest of 378 cities; 7th of 38 in Texas
  • Wet days159th driest of 378

What to pack for College Station in September

  • Light, breathable clothing – highs near 91°F

Heating and cooling

September has 1 heating degree days and 469 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.

Questions

How hot is College Station in September?

The normal high is 91°F and the normal low is 70°F. From 1991 to 2020 the hottest September reading was 112°F (September 4, 2000).

Does it rain a lot in College Station in September?

About 7 days in September have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest September in 1991-2020 was in 2001 (8.8 in); the driest was in 2005, with no measurable precipitation.

Is September a good time to visit College Station?

September ranks 9th of 12 months on our comfort score for College Station (39 out of 100). It has about 2 comfortable days (judged by temperature only) and about 20 days at 90°F or hotter. The best month is March.

Where the numbers come from

  • Temperature, rain and frost dates: College Stn (USW00003904), 3.2 mi SW of the city center, 305 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Washington Sp (USC00419491), 24 mi SSE of the city center, 215 ft (126 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).