Sinton climate

Sinton Weather in September

NOAA 1991-2020 normals for Sinton, 3.4 km from Sinton

Average highs run from 93°F on September 1 to 88°F on September 30, and lows from 74°F to 68°F. Normal precipitation for the month is 5.28 in over about 8 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Sinton, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
90°F
Average low
71°F
Precipitation
5.28 in
Record high
109°FSep 6, 2000
Record low
50°FSep 29, 1967
Chance of a freeze
0%
Days of 90°F or more
19.8
Daylight
12 h 42 min to 11 h 55 min
Cloud cover
47%
Humidity
74%
Dew point
71°F
Wind
8.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 193°F74°F102°F 200068°F 197823%0%
Sep 293°F74°F102°F 201170°F 197624%0%
Sep 392°F74°F101°F 201168°F 197424%0%
Sep 492°F74°F101°F 200061°F 197424%0%
Sep 592°F74°F108°F 200063°F 201124%0%
Sep 692°F74°F109°F 200055°F 197424%0%
Sep 792°F73°F99°F 196359°F 201724%0%
Sep 892°F73°F98°F 196361°F 201725%0%
Sep 991°F73°F99°F 196364°F 201725%0%
Sep 1091°F73°F104°F 196563°F 201124%0%
Sep 1191°F73°F102°F 196561°F 201724%0%
Sep 1291°F72°F99°F 197356°F 195924%0%
Sep 1391°F72°F101°F 196563°F 196024%0%
Sep 1491°F72°F101°F 201160°F 196024%0%
Sep 1590°F72°F98°F 196562°F 196024%0%
Sep 1690°F72°F98°F 196558°F 197924%0%
Sep 1790°F71°F100°F 196256°F 197924%0%
Sep 1890°F71°F96°F 195952°F 198123%0%
Sep 1990°F71°F99°F 197752°F 198123%0%
Sep 2090°F71°F98°F 197758°F 197123%0%
Sep 2189°F70°F96°F 198058°F 197623%0%
Sep 2289°F70°F98°F 196554°F 198322%0%
Sep 2389°F70°F95°F 196053°F 199422%0%
Sep 2489°F70°F95°F 197753°F 199422%0%
Sep 2589°F69°F97°F 201152°F 198922%0%
Sep 2689°F69°F103°F 201151°F 200021%0%
Sep 2789°F69°F98°F 201151°F 200021%0%
Sep 2888°F68°F100°F 201152°F 200021%0%
Sep 2988°F68°F97°F 196650°F 196720%0%
Sep 3088°F68°F97°F 199850°F 198420%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sinton, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:09 AM, sunset 7:51 PM
September 30
sunrise 7:22 AM, sunset 7:17 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00418354 (Sinton), public domain. Records: NOAA GHCN-Daily, station USC00418354, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.