Evansville, IN

Indiana · Records since 1897–2026

⛅ 80°F Feels like 87°
Currently in Evansville
As of 1:30 PM CDT

Records for September 11

🔥 Record High

99°F

September 11, 1897

+15° from 84° normal

❄ Record Low

43°F

September 11, 1940

-17° from 60° normal
🌞 Normal high: 84°F 🌑 Normal low: 60°F 1991–2020 normals

All-Time Records — Evansville

🔥
111°F
Hottest Day Ever
Jul 28, 1930
❄
-23°F
Coldest Day Ever
Feb 2, 1951
🌧
6.50"
Wettest Day Ever
Oct 5, 1910
☃
19.3"
Most Snow in One Day
Dec 22, 2004

First & Last Dates — Evansville

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)
254 days
Longest growing season
1929
165 days
Shortest growing season
1976
204 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 99°F September 11, 1897
2 95°F September 11, 2013
3 95°F September 11, 1983
4 95°F September 11, 1953
5 94°F September 11, 1952
6 94°F September 11, 1925
7 93°F September 11, 2019
8 93°F September 11, 1908
9 92°F September 11, 1991
10 92°F September 11, 1947

Top 5 Record Lows — September 11

# Temp Date
🥶 43°F September 11, 1940
2 44°F September 11, 1917
3 46°F September 11, 1976
4 47°F September 11, 1970
5 47°F September 11, 1969
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.

Heat Wave Summary — Evansville

threshold: 95°F (90th percentile of historical Jun–Aug highs)
4.7
Avg heat wave length
days (historical)
100°
Avg peak temp
during heat waves
47
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1897–2026
38
2026 so far
43
Avg/year 1970–2025
44
Avg/year (last 10 complete)
84
Most in a year (1936)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Evansville

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 3, 2007 – Aug 16, 2007 14 104°F (Aug 15) 98°F 72°F
2 Jul 5, 1936 – Jul 16, 1936 12 108°F (Jul 13) 103°F 79°F
3 Jul 12, 1983 – Jul 23, 1983 12 102°F (Jul 21) 98°F 73°F
4 Jun 28, 2012 – Jul 8, 2012 11 107°F (Jun 28) 104°F 72°F
5 Jul 24, 1940 – Aug 3, 1940 11 100°F (Jul 30) 97°F 77°F
6 Jul 19, 1901 – Jul 28, 1901 10 107°F (Jul 22) 100°F 78°F
7 Aug 31, 1925 – Sep 9, 1925 10 104°F (Sep 6) 99°F 74°F
8 Jun 23, 1952 – Jul 2, 1952 10 103°F (Jun 29) 98°F 73°F
9 Aug 25, 1953 – Sep 3, 1953 10 102°F (Sep 2) 98°F 64°F
10 Sep 7, 1897 – Sep 16, 1897 10 99°F (Sep 11) 97°F 63°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

44
2026 total
above-normal nights
43.9
Avg / summer
1970–2020
73
Most in a summer
1921

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 +0.77" per decade, about +9.9" 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 Evansville is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

135 of 237 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

33.17"
2026 YTD
Normal: 34.36"
-1.19"
2.11"
September so far
September normal: 3.31"
-1.20"
12
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Evansville is 1.19" 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)
78.6°F
Average temperature
29th-warmest of 130
+1.5°
vs. average
Normal: 77.1°F (1991–2020)
17.57"
Precipitation
4th-wettest of 129
+6.33"
vs. average
Normal: 11.24" · 156% of normal

Average Temperature by Year — Jun 12 – Sep 10

1897–2026 · 2026 highlighted · trend -0.06° per decade (cooling since 1897)

Precipitation by Year — Jun 12 – Sep 10

1897–2026 · 2026 highlighted · trend +0.18" per decade (wetter since 1897)

Warmest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1936 82.7°F
2 1913 81.3°F
3 1921 80.7°F
4 1983 80.6°F
5 1901 80.6°F
6 1995 80.1°F
7 1900 80.1°F
8 1925 80.0°F
9 2012 79.9°F
10 1954 79.9°F

Coolest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1967 72.0°F
2 1950 73.0°F
3 1972 73.5°F
4 2004 73.5°F
5 1946 74.2°F
6 1974 74.2°F
7 1965 74.4°F
8 1915 74.4°F
9 1976 74.4°F
10 1963 74.6°F

Wettest Jun 12 – Sep 10 on Record

# Year Total
1 2020 20.35"
2 1977 19.66"
3 1969 18.07"
4 2026 17.57"
5 1950 17.22"
6 1900 16.31"
7 2000 16.24"
8 2001 16.08"
9 2016 15.79"
10 1958 15.63"

Driest Jun 12 – Sep 10 on Record

# Year Total
1 1936 2.56"
2 1913 3.94"
3 1953 4.65"
4 1901 4.66"
5 1964 5.02"
6 1944 5.17"
7 1940 5.22"
8 1991 5.38"
9 1983 5.46"
10 1902 5.49"
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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