Public Information Statement
Issued by NWS Indianapolis, IN
Issued by NWS Indianapolis, IN
141
NOUS43 KIND 020300
PNSIND
INZ021-028>031-035>049-051>057-060>065-067>072-021100-
Public Information Statement
National Weather Service Indianapolis IN
1100 PM EDT Thu Oct 1 2026
...SEPTEMBER 2026 HOTTEST SEPTEMBER EVER RECORDED AT INDIANAPOLIS...
...INCLUDING HIGHEST SEPTEMBER AVERAGE MINIMUM TEMPERATURE...
...STATISTICS FOR TEN HOTTEST SEPTEMBERS AT INDY SINCE 1871...
...HISTORICAL PERSPECTIVE OF SEPTEMBER 2026 RECORD WARMTH...
I. SURVEY OF HOTTEST SEPTEMBERS IN 156-YEAR RECORD AT INDIANAPOLIS...
A V E R A G E / EXTREMS / FREQUENCY OF DAYS /
SEPT TEMP / MAX MIN / MAX MIN / 90+ 95+ / MN70+ MN75+/ PCPN
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1. 2026 73.8 / 83.1 64.5 / 97 49 / 9 5 / 10 4 / 1.29
2. 2019 73.7 / 84.2 63.1 / 92 52 / 6 / 2 / 0.47
T3. 1933 73.2 / 82.4 63.9 / 95 50 / 6 1 / 8 / 5.27
T3. 1925 73.2 / 82.3 64.2 / 95 50 / 8 3 / 7 / 5.89
5. 1881 73.1 / 81.9 64.3 / 94 48 / 4 / 13 3 / 3.25
6. 1931 72.7 / 81.8 63.7 / 92 47 / 8 / 9 2 / 3.66
7. 1939 72.4 / 84.8 59.9 / 100 42 / 10 7 / 5 2 / 1.17
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8. 1941 71.8 / 82.7 60.9 / 91 46 / 4 / 5 / 1.94
9. 2007 71.7 / 82.7 60.6 / 96 43 / 5 1 / 3 / 1.59
10. 1908 71.6 / 83.5 59.7 / 92 39 / 6 / / 1.14
/////////////////////////////////////////////////////////////////////
II. HISTORICAL PERSPECTIVE OF SEPTEMBER 2026 HEAT AT INDIANAPOLIS...
HIGHEST AVG .MAX. TEMPS / HIGHEST AVG .MIN. TEMPS
------------------------- / -------------------------
1. SEP 1939 84.8 / 1. SEP 2026 64.7**
2. SEP 1897 84.6 / 2. SEP 1881 64.3
3. SEP 2019 84.2 / 3. SEP 1925 64.2
------------------------ / 4. SEP 1933 63.9
4. SEP 1908 83.5 / 5. SEP 1931 63.7
5. SEP 2026 83.1** / ------------------------
6. SEP 1998 83.0 / 6. SEP 2019 63.1
T7. SEP 2007 82.7 / 7. SEP 1884 63.0
T7. SEP 1941 82.7 / 8. SEP 2018 62.6
9. SEP 2010 82.6 / 9. SEP 1921 62.3
10. SEP 1961 82.5 / 10. SEP 1927 61.8
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HIGHEST TEMPERATURES OBSERVED IN SEPTEMBER (1871-2026):
100*F on 2011/3rd ... 1954/5th ... 1953/1st,2nd ... 1939/14th,15th
99*F on 2011/1st,2nd ... 1954/6th ... 1939/13th
HIGHEST MINIMUM TEMPERATURES OBSEVRED IN SEPTEMBER:
77*F on 2026/4th
76*F on 1939/14th ... 1931/22nd ... 1881/6th,7th ... 1872/7th
SEPTEMBERS AT INDIANAPOLIS HAVE OBSERVED A MAXIMUM OF 97 DEGREES OR
HIGHER ON 19 DAYS WITHIN ONLY 6 MONTHS (A SEPTEMBER EVERY 26 YR):
1939 (6) ... 1899, 1953, 1954, 2011 (3 EACH) ... 2026 (1)**
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GREATEST FREQUENCY OF SEPTEMBER DAYS WITH TEMPERATURES ABOVE...
90 DEGREES 95 DEGREES MINIMUMS 70+ MINIMUMS 75+
-------------- -------------- -------------- --------------
T1. 1897 12 1. 1939 7 1. 1881 13 1. 2026 4**
T1. 1891 12 T2. 2026 5** 2. 2026 10** 2. 1881 3
T3. 1961 10 T2. 1922 5 T3. 1936 9 T3. 1939 2
T3. 1939 10 4. 1953 4 T3. 1931 9 T3. 1931 2
T5. 2026 9** T5. 2011 3 T3. 1922 9 T5. 2012 1
T5. 1983 9 T5. 1954 3 T6. 2018 8 T5. 1937 1
T5. 1895 9 T5. 1925 3 T6. 1933 8 T5. 1936 1
T8. 2018 8 T5. 1899 3 T8. 1925 7 T5. 1927 1
T8. 1999 8 T9. 2013 2 T8. 1900 7 T5. 1922 1
T8. 1991 8 T9. 1991 2 T10. 1961 6 T5. 1884 1
T8. 1955 8 T9. 1964 2 T10. 1927 6 T5. 1872 1
T8. 1938 8 T9. 1913 2 T10. 1884 6
T8. 1925 8 T9. 1897 2
T8. 1922 8
T8. 1912 8
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TALLY OF DAILY RECORD HIGH TEMPERATURES (BOTH MAX AND MIN) BY YEAR
FOR INDIANAPOLIS AREA (All Tied Records are counted as 0.5)
RECORD HIGH MAX RECORD HIGH MIN TOTAL DAILY RECORD HIGHS
----------------- ----------------- --------------------------
1. 1939 7.5 T1. 1931 5 1. 1939 10
2. 1953 4 T1. 1881 5 T2. 1931 5
3. 1954 3 3. 2026 4** T2. 1881 5
T4. 2010 2 4. 1884 3 T4. 2026 4**
T4. 1897 2 5. 1939 2.5 T4. 1953 4
T6. 2017 1.5 T6. 2019 1 T6. 1954 3
T6. 2013 1.5 T6. 1937 1 T6. 1884 3
T6. 1940 1.5 T6. 1930 1 T8. 2010 2
T6. 1891 1.5 T6. 1927 1 T8. 1897 2
T10. 2019 1 T6. 1926 1 T10. 2017 1.5
T10. 1998 1 T6. 1925 1 T10. 2013 1.5
T10. 1955 1 T6. 1922 1 T10. 1940 1.5
T6. 1913 1 T10. 1891 1.5
T6. 1873 1
$$
AGM