Jollyville climate

Jollyville Weather in September

NOAA 1991-2020 normals for Austin Great Hills, 3.3 km from Jollyville

Average highs run from 93°F on September 1 to 86°F on September 30, and lows from 70°F to 62°F. Normal precipitation for the month is 3.42 in over about 7 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 Jollyville, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
89°F
Average low
67°F
Precipitation
3.42 in
Record high
112°FSep 5, 2000
Record low
41°FSep 27, 1942
Chance of a freeze
0%
Days of 90°F or more
18.4
Daylight
12 h 46 min to 11 h 53 min
Cloud cover
46%
Humidity
65%
Dew point
63°F
Wind
8.3 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°F70°F107°F 200062°F 194420%0%
Sep 293°F70°F107°F 200067°F 196720%0%
Sep 393°F70°F108°F 200059°F 197420%0%
Sep 492°F70°F110°F 200058°F 197421%0%
Sep 592°F69°F112°F 200056°F 197421%0%
Sep 692°F69°F103°F 201957°F 197421%0%
Sep 792°F69°F105°F 202357°F 201721%0%
Sep 891°F69°F107°F 202359°F 195721%0%
Sep 991°F68°F104°F 202356°F 195721%0%
Sep 1091°F68°F101°F 194058°F 202021%0%
Sep 1191°F68°F104°F 201161°F 196821%0%
Sep 1290°F68°F105°F 201156°F 194021%0%
Sep 1390°F67°F105°F 201155°F 194021%0%
Sep 1490°F67°F103°F 201155°F 194521%0%
Sep 1589°F67°F103°F 202655°F 194521%0%
Sep 1689°F67°F101°F 201954°F 194521%0%
Sep 1789°F66°F99°F 202155°F 196121%0%
Sep 1889°F66°F101°F 201954°F 196821%0%
Sep 1989°F66°F101°F 195652°F 198121%0%
Sep 2088°F65°F103°F 195652°F 197121%0%
Sep 2188°F65°F99°F 200553°F 193821%0%
Sep 2288°F65°F101°F 200549°F 198321%0%
Sep 2388°F65°F101°F 202352°F 198321%0%
Sep 2487°F64°F103°F 202353°F 194721%0%
Sep 2587°F64°F107°F 200553°F 198921%0%
Sep 2687°F64°F107°F 200548°F 194221%0%
Sep 2787°F63°F103°F 195341°F 194221%0%
Sep 2886°F63°F106°F 200549°F 194221%0%
Sep 2986°F63°F101°F 201147°F 196721%0%
Sep 3086°F62°F99°F 201948°F 198421%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jollyville, 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 7:08 AM, sunset 7:54 PM
September 30
sunrise 7:24 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 USC00410433 (Austin Great Hills), public domain. Records: NOAA GHCN-Daily, station USW00013958, 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.