Austin, TX

Texas · Records since 1897–2026

☀️ 98°F Feels like 105°
Currently in Austin
As of 1:30 PM CDT
🔥 6° below today's record of 104°F

Records for September 11

🔥 Record High

104°F

September 11, 2011

+12° from 92° normal

❄ Record Low

55°F

September 11, 1924

-16° from 71° normal
🌞 Normal high: 92°F 🌑 Normal low: 71°F 1991–2020 normals

All-Time Records — Austin

🔥
112°F
Hottest Day Ever
Aug 28, 2011
❄
-2°F
Coldest Day Ever
Jan 31, 1949
🌧
15.00"
Wettest Day Ever
Sep 9, 1921
☃
6.5"
Most Snow in One Day
Jan 30, 1949

First & Last Dates — Austin

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
332 days
Longest growing season
2017
206 days
Shortest growing season
1924
288 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 104°F September 11, 2011
2 102°F September 11, 2000
3 100°F September 11, 2019
4 100°F September 11, 1963
5 99°F September 11, 2014
6 99°F September 11, 2008
7 99°F September 11, 1982
8 99°F September 11, 1925
9 98°F September 11, 2023
10 98°F September 11, 1965

Top 5 Record Lows — September 11

# Temp Date
🥶 55°F September 11, 1924
2 55°F September 11, 1907
3 61°F September 11, 2017
4 61°F September 11, 1968
5 62°F September 11, 1943
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1897–2026. Climate normals represent the 1991–2020 average.
4
days
🔥 Heat Wave in Progress
4 consecutive days at or above 101°F · since September 7
Heat wave in progress (3+ days ≥ 101°F)

Heat Wave Summary — Austin

threshold: 101°F (90th percentile of historical Jun–Aug highs)
6.2
Avg heat wave length
days (historical)
104°
Avg peak temp
during heat waves
123
Dangerous nights 2026
Overnights ≥ 70°F
5
Heat waves 2026
so far

Days ≥ 90°F Per Year

1897–2026
116
2026 so far
113
Avg/year 1970–2025
140
Avg/year (last 10 complete)
164
Most in a year (2011)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Austin

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 8, 2023 – Aug 21, 2023 45 110°F (Aug 17) 106°F 78°F
2 Jul 19, 2011 – Aug 12, 2011 25 107°F (Aug 1) 104°F 79°F
3 Jul 16, 2022 – Aug 5, 2022 21 106°F (Jul 18) 104°F 77°F
4 Aug 2, 2020 – Aug 21, 2020 20 107°F (Aug 14) 104°F 77°F
5 Aug 7, 1925 – Aug 23, 1925 17 107°F (Aug 13) 103°F 72°F
6 Jul 29, 2013 – Aug 14, 2013 17 107°F (Aug 14) 103°F 77°F
7 Aug 6, 2019 – Aug 22, 2019 17 105°F (Aug 9) 103°F 79°F
8 Jul 25, 1923 – Aug 8, 1923 15 107°F (Aug 3) 104°F 72°F
9 Aug 3, 2009 – Aug 17, 2009 15 105°F (Aug 6) 103°F 77°F
10 Aug 15, 2018 – Aug 29, 2018 15 105°F (Aug 17) 103°F 78°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

63
2026 total
above-normal nights
35.3
Avg / summer
1970–2020
78
Most in a summer
2011

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1897–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1897, annual totals have trended +0.13" per decade, about +1.7" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Austin is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

160 of 253 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

24.07"
2026 YTD
Normal: 24.55"
-0.48"
0.12"
September so far
September normal: 3.45"
-3.33"
7
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Austin is 0.48" behind the normal pace

Period Review — Jun 12 – Sep 10, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
87.1°F
Average temperature
7th-warmest of 129
+1.7°
vs. average
Normal: 85.3°F (1991–2020)
8.64"
Precipitation
42nd-wettest of 124
+0.36"
vs. average
Normal: 8.28" · 104% of normal

Average Temperature by Year — Jun 12 – Sep 10

1898–2026 · 2026 highlighted · trend +0.25° per decade (warming since 1898)

Precipitation by Year — Jun 12 – Sep 10

1901–2026 · 2026 highlighted · trend +0.07" per decade (wetter since 1901)

Warmest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 2023 90.5°F
2 2011 89.3°F
3 2009 88.5°F
4 2022 88.4°F
5 2018 87.2°F
6 2013 87.1°F
7 2019 87.1°F
8 2026 87.1°F
9 1998 87.0°F
10 2020 86.9°F

Coolest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1907 79.1°F
2 1900 80.5°F
3 1919 80.9°F
4 1908 81.0°F
5 1974 81.1°F
6 1961 81.2°F
7 1903 81.5°F
8 1913 81.6°F
9 1976 81.7°F
10 1940 81.7°F

Wettest Jun 12 – Sep 10 on Record

# Year Total
1 1921 25.17"
2 1919 21.60"
3 2010 18.66"
4 1961 18.54"
5 2007 17.95"
6 2002 15.57"
7 1936 15.48"
8 1994 13.85"
9 1981 13.72"
10 1920 13.53"

Driest Jun 12 – Sep 10 on Record

# Year Total
1 2023 0.38"
2 1910 0.96"
3 1977 1.53"
4 1956 1.92"
5 1934 2.02"
6 1965 2.05"
7 2011 2.06"
8 1911 2.08"
9 1918 2.29"
10 1922 2.43"
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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