Amarillo, TX

Texas · Records since 1892–2026

☀️ 87°F
Currently in Amarillo
As of 1:30 PM CDT

Records for September 11

🔥 Record High

101°F

September 11, 1910

+15° from 86° normal

❄ Record Low

37°F

September 11, 1898

-23° from 60° normal
🌞 Normal high: 86°F 🌑 Normal low: 60°F 1991–2020 normals

All-Time Records — Amarillo

🔥
111°F
Hottest Day Ever
Jun 26, 2011
❄
-16°F
Coldest Day Ever
Feb 12, 1899
🌧
5.74"
Wettest Day Ever
Jul 7, 2010
☃
19.0"
Most Snow in One Day
Feb 25, 2013

First & Last Dates — Amarillo

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)
242 days
Longest growing season
1963
151 days
Shortest growing season
1984
188 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 101°F September 11, 1910
2 99°F September 11, 2021
3 99°F September 11, 2000
4 96°F September 11, 1970
5 96°F September 11, 1930
6 95°F September 11, 2012
7 95°F September 11, 1934
8 94°F September 11, 1977
9 94°F September 11, 1956
10 94°F September 11, 1943

Top 5 Record Lows — September 11

# Temp Date
🥶 37°F September 11, 1898
2 46°F September 11, 2020
3 46°F September 11, 1902
4 47°F September 11, 1929
5 47°F September 11, 1894
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 1892–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Amarillo

threshold: 98°F (90th percentile of historical Jun–Aug highs)
4.7
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
39
Dangerous nights 2026
Overnights ≥ 70°F
5
Heat waves 2026
so far

Days ≥ 90°F Per Year

1892–2026
107
2026 so far
64
Avg/year 1970–2025
87
Avg/year (last 10 complete)
113
Most in a year (2011)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Amarillo

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 12, 2011 – Jul 28, 2011 17 103°F (Jul 20) 100°F 72°F
2 Aug 11, 2024 – Aug 25, 2024 15 108°F (Aug 22) 103°F 72°F
3 Aug 2, 2026 – Aug 15, 2026 14 104°F (Aug 13) 100°F 71°F
4 Jun 24, 1994 – Jul 6, 1994 13 107°F (Jun 25) 102°F 67°F
5 Jul 15, 2001 – Jul 27, 2001 13 103°F (Jul 16) 100°F 71°F
6 Jul 23, 2023 – Aug 4, 2023 13 103°F (Jul 24) 101°F 71°F
7 Jul 27, 2024 – Aug 7, 2024 12 107°F (Aug 1) 102°F 71°F
8 Jun 23, 1980 – Jul 4, 1980 12 106°F (Jun 27) 102°F 70°F
9 Jul 21, 2026 – Jul 31, 2026 11 105°F (Jul 27) 102°F 73°F
10 Aug 18, 2011 – Aug 28, 2011 11 103°F (Aug 24) 101°F 71°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

67
2026 total
above-normal nights
34.7
Avg / summer
1970–2020
75
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 (1892–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1892, annual totals have trended -0.17" per decade, about -2.2" 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 Amarillo is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

7.00"
2026 YTD
Normal: 15.30"
-8.30"
0.24"
September so far
September normal: 1.69"
-1.45"
1
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Amarillo is 8.30" 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)
82.8°F
Average temperature
2nd-warmest of 135
+5.4°
vs. average
Normal: 77.4°F (1991–2020)
3.85"
Precipitation
17th-driest of 135
-4.07"
vs. average
Normal: 7.92" · 49% of normal

Average Temperature by Year — Jun 12 – Sep 10

1892–2026 · 2026 highlighted · trend +0.22° per decade (warming since 1892)

Precipitation by Year — Jun 12 – Sep 10

1892–2026 · 2026 highlighted · trend -0.08" per decade (drier since 1892)

Warmest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 2011 83.3°F
2 2026 82.8°F
3 2024 81.8°F
4 1934 81.1°F
5 2012 80.9°F
6 1936 80.7°F
7 1937 80.6°F
8 1954 80.5°F
9 1998 80.5°F
10 2023 80.3°F

Coolest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1895 72.7°F
2 1906 73.1°F
3 1915 73.1°F
4 1898 73.3°F
5 1904 73.3°F
6 1908 73.6°F
7 1972 73.7°F
8 2004 73.8°F
9 1894 73.8°F
10 1920 73.9°F

Wettest Jun 12 – Sep 10 on Record

# Year Total
1 1962 20.25"
2 1950 16.74"
3 1928 15.05"
4 1899 14.09"
5 2015 13.99"
6 1921 13.93"
7 1960 13.85"
8 1996 13.75"
9 2009 13.62"
10 1958 13.27"

Driest Jun 12 – Sep 10 on Record

# Year Total
1 1983 1.50"
2 2011 2.11"
3 1940 2.34"
4 2023 2.41"
5 2000 2.83"
6 1998 2.93"
7 1934 3.02"
8 1922 3.07"
9 2001 3.11"
10 2012 3.39"
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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