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 — Mar 1 – May 31, 2026

Any window, evaluated against every other year on record — 92 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
72.9°F
Average temperature
3rd-warmest of 129
+3.1°
vs. average
Normal: 69.7°F (1991–2020)
10.93"
Precipitation
43rd-wettest of 121
+0.59"
vs. average
Normal: 10.34" · 106% of normal

Average Temperature by Year — Mar 1 – May 31

1898–2026 · 2026 highlighted · trend +0.27° per decade (warming since 1898)

Precipitation by Year — Mar 1 – May 31

1905–2026 · 2026 highlighted · trend -0.03" per decade (drier since 1905)

Warmest Mar 1 – May 31 on Record

# Year Avg Temp
1 2025 73.7°F
2 2011 73.6°F
3 2026 72.9°F
4 1967 72.8°F
5 2022 72.8°F
6 2006 72.6°F
7 2012 72.6°F
8 2024 72.5°F
9 2017 72.2°F
10 1902 72.0°F

Coolest Mar 1 – May 31 on Record

# Year Avg Temp
1 1926 63.2°F
2 1931 63.6°F
3 1924 64.0°F
4 1915 64.3°F
5 1901 64.4°F
6 1913 64.8°F
7 1947 64.9°F
8 1983 65.0°F
9 1970 65.2°F
10 1952 65.3°F

Wettest Mar 1 – May 31 on Record

# Year Total
1 2015 24.73"
2 1915 23.84"
3 1957 21.89"
4 1922 20.60"
5 1929 19.09"
6 2016 17.78"
7 1926 17.06"
8 1946 16.82"
9 1919 16.41"
10 1992 16.38"

Driest Mar 1 – May 31 on Record

# Year Total
1 1961 1.80"
2 2003 2.01"
3 1960 3.19"
4 1971 3.23"
5 2002 3.25"
6 1984 3.82"
7 1956 3.94"
8 2011 4.01"
9 1996 4.32"
10 1925 4.48"
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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