Public Information Statement
Issued by NWS Indianapolis, IN
Issued by NWS Indianapolis, IN
140
NOUS43 KIND 311839
PNSIND
INZ021-028>031-035>049-051>057-060>065-067>072-010245-
Public Information Statement
National Weather Service Indianapolis IN
239 PM EDT Sat Aug 31 2024
...INDIANAPOLIS FREQUENCY OF 7-DAY HEAT WAVES, LATE AUG/SEP HEAT...
...CENTRAL INDIANA MAXIMUM TEMPERATURE REPORTS ON AUGUST 23-30...
...RETURN PERIODS FOR EXTENDED WARM NIGHTS...THREE 93F+ MAXIMUMS...
I. 7 DAY HEAT WAVE (MAX 90F+) AT INDIANAPOLIS AUGUST 24-30, 2024
- OVERALL RECORD (1871) RETURN PERIOD...53/154YR...2.9 YEARS
- NORMALS (SINCE 1991) RETURN PERIOD...14/34YR...2.4 YEARS
LAST 21 OCCURENCES OF A 7+ DAY HEAT WAVE AT INDIANAPOLIS...
DAYS..HEAT WAVE PERIOD...DAILY RECORD HIGHS
7...2024/AUGUST/24-30...8/30
7...2020/JULY/3-9
7...2018/JUN 29-JUL 5
7...2015/SEPTEMBER/2-8
7...2012/JUL 29-AUG 4
7...2012/JULY 21-27.....7/23^
17...2012/JUN 27-JUL 13..6/28, 6/29, 6/30^, 7/5, 7/6, 7/7
23...2011/JUL 17-AUG 8
7...2010/AUGUST 9-15....8/15^
14...2007/JUL 31-AUG 13
8...1999/JULY 19-26
12...1995/AUGUST 10-21
7...1995/JULY 11-17
9...1994/JUNE 14-22.....6/18^
11...1988/AUGUST 8-18....8/15^, 8/16, 8/17
8...1988/JULY 3-10
13...1983/AUGUST 18-30...8/20
14...1983/JULY 11-24
14...1980/JULY 7-20
9...1977/JULY 12-20
10...1973/AUG 26-SEP 4
^RECORD TIED WITH OTHER YEARS
////////////////////////////////////////////////////////////////////
II. 7+ DAY HEAT WAVES AT INDIANAPOLIS...ENDING AUGUST 30 OR LATER
- RECENT WAVE 1 OF 8 TO OCCUR SO LATE IN YEAR...19-YR RETURN
- ONLY 2ND HEAT WAVE TO OCCUR SO LATE SINCE 1991..17-YR RETURN
HEAT WAVE PERIOD...DURATION...CHRONICLE OF OBSERVED MAXIMUMS
2024/AUGUST/24-30..MAX-> 90 91 91 94 90 93 96*
MIN-> 67 70 69 73 69 73 72
2015/SEPTEMBER/2-8.. 7...90 91 94 91 92 91 91
1983/AUGUST/18-30...13...94 98 99 97 92 91 92 94 93 90 90 93 91*
1973/AUG 26-SEP 4...10...91 92 91 90 92 90 91 92 91 91
1953/AUG 25-SEP 2... 9...93 93 95 96 97 95 97 100 100*
1912/SEPTEMBR/4-10.. 7...90 93 93 91 90 92 94
1897/SEPTEMBR/7-16..10...92 94 93 94 95 96 94 94 94 93*
1891/SEPTMBR/16-27..12...91 92 92 93 92 92 91 90 91 92 91 91*
*154-YEAR RECORD HIGHS IN ABOVE LATE-SEASON HEAT WAVES...
AUG 20...99...1983
AUG 28...96...1953 (TIED 1913, 1936)
AUG 29...97...1953
AUG 30...95...1953 (TIES 1881, 1964)
AUG 31...97...1953 (TIED 1951)
SEP 1...100...1953
SEP 2...100...1953
SEP 11...95...1897 (TIES 2013)
SEP 12...96...1897
SEP 19...93...1891 (TIES 1921, 1940)
SEP 25...92...1891
SEP 26...91...1891 (TIES 2017)
///////////////////////////////////////////////////////////////////
III. CENTRAL INDIANA HIGH TEMPERATURES DURING AUGUST 24-30, 2024...
A U G U S T
County Station 24 25 26 27 28 29 30
------------------------------------------------------------
A MARION Indianapolis 90 91 91 94 90 93 96*
S TIPPECANOE Lafayette 90 91 93 96 87 91 94
O VIGO Terre Haute 92 93 95 97 90 95 97*
S MONROE Bloomington 90 91 92 95 92 95 96*
DELAWARE Muncie 90 92 93 95 90 93 97*
SHELBY Shelbyville 91 92 92 96 94 95 98*
MARION Eagle Creek AP 91 92 92 95 91 94 96*
-------------------------------------------------------------
C BARTHOLOMEW Columbus WWTP 90 91 91 94 94 95 97*
O CLINTON Frankfort Disposal 89 90 91 94 88 88 93
O DAVIESS Elnora 91 91 94 97 97 97 M*
P DAVIESS Washington 1 W 92 93 95 97 95 98 97*
HAMILTON Carmel 3 E 89 91 91 93 88 91 95
HANCOCK Greenfield 89 90 91 94 91 92 96*
HENRY New Castle 3 SW 91 92 92 95 92 93 98*
HOWARD Kokomo 3 WSW 86 87 88 90 89 89 M
HOWARD Young America 89 88 89 93 85 87 90
JACKSON Seymour 1 WSW 90 90 90 93 92 94 95*
JENNINGS North Vernon 2 ESE 88 89 M 93 91 92 94*
JOHNSON Franklin WWTP M 88 90 93 90 92 94*
KNOX Vincennes 5 NE 95 94 96 99 94 M M*
LAWRENCE Oolitic Purdue Fm 88 88 90 94 93 94 95*
MADISON Anderson 1 N 90 92 92 95 89 92 M
MARION Castleton 2 S 89 89 90 93 89 92 94
MARION Indianapolis WFO 89 91 90 92 89 92 95
MARTIN Shoals 8 S 94 94 96 99 98 100 99*
MONROE Indiana Univ. 85 89 91 M M M M
MONTGOMERY Crawfordsville 6 SE 89 90 90 94 87 91 93
MORGAN Martinsville 2 SW 90 90 92 93 91 93 95*
PARKE Rockville M 93 M 98 M 93 96
RUSH Rushville M 89 88 91 90 92 94
SHELBY Shelbyville WWTP 88 90 90 94 92 93 M
SULLIVAN Farmersburg TV-2 90 91 92 95 88 99 97
SULLIVAN Shakamak State Pk 90 92 94 M 96 M 96
TIPPECANOE Lafayette 8 S 88 89 M M M M M
TIPTON Tipton 5 SW 91 92 93 96 89 90 97
VERMILLION Perrysville 4 WNW 86 88 89 95 85 94 96
-------------------------------------------------------------
County Station 24 25 26 27 28 29 30
*Final day of a 5+ day streak of 90F+
SHOALS 8 S (MARTIN COUNTY) HIT 100F ON 8/29/2024...
- HISTORICALLY (SINCE 1914) AN OVERALL 2.4/YR OCCURENCE
- YET ONLY THIRD DAY REACHING 100 (AFTER AUGUST 21) SINCE 1955
...OTHER OCCURRENCES WERE 9/2/2011 (100F), 9/4/2011 (103F)
NEW CASTLE 3 SW (HENRY COUNTY) HIT 98F ON 8/30/2024...
- FIRST 98F+ FOR STATION SINCE 9/11/2013
- ONLY THIRD DAY REACHING 98 (AFTER AUGUST 21) SINCE 1955
...OTHER TWO WERE 9/4/2011 (98F), 9/11/2013 (98F)
///////////////////////////////////////////////////////////////////
IV. WARM NIGHTS THIS LATE IN YEAR AT INDIANAPOLIS, RETURN PERIOD
- HEAT WAVES LAST 6 DAYS SAW DAILY MINIMUMS 69F OR ABOVE
- HAS ONLY HAPPENED THIS LATE IN THE YEAR 12 TIMES SINCE
1885...OR A 12-YR RETURN PERIOD
- HAS HAPPENED THIS LATE 4 TIMES SINCE 1991...A 9-YR RETURN
- LAST OCCURRED...2021/8/17-30...2016/8/24-30...1993/8/24-30
- ALSO...NEAR-RECORD HIGH MIN...73 ON 8/27...(RER IS 74/1977)
///////////////////////////////////////////////////////////////////
V. APPENDIX/NOTES...RETURN PERIOD/LAST OCCURANCE OF HIGHEST OBS
(FOR INDIANAPOLIS AREA UNLESS OTHERWISE NOTED)
- GREATEST YEAR TOTALS OF 90+ DAYS...1983/58, 1936/55, 2012/51
- RECENT YEARS TOTALS OF 90+ DAYS...2022/23, 2023/15, 2024/18
- ONLY YEAR AT INDIANAPOLIS TO NOT REACH 90F...2004 (4 AT 89F)
- RECENT HEAT INCLUDED 3 OF 4 DAYS REACHING 93F+...HAS ONLY
HAPPENED THIS LATE IN YEAR SIX TIMES IN 154-YEAR RECORD...
2024/AUG/27-30...94/90/93/96 | 1933/SEPT/6-9...91/94/95/94
2013/AUG/28-31...94/90/94/96 | 1922/SEPT/5-8...96/95/95/95
2002/SEPT/7-10...94/94/94/92 | 1881/SEPT/5-8...94/94/93/92
- YIELDING A 26-YR RETURN (SINCE 1871)...11-YR (SINCE 1991)
- LAFAYETTE HIT 96...ON 8/30/2024...
LAF HAS HIT 96+ ON ONLY 10 DAYS SINCE 2013 (LAST 100, 7/5/22)
...AND HAS ONLY HIT 96 THIS LATE IN 7 OF THE 57 YEARS OF
COMPLETE RECORDS (12 PERCENT)
- MUNCIE HIT 97...ON 8/30/2024...
MIE HAS REACHED 97+ ON ONLY 7 DAYS *AFTER JULY 31ST*
...SINCE THE 60-YEAR PERIOD OF RECORD BEGAN IN 1965...
ONLY POST-JULY 97+ WERE 8/1983 (97/98/97)...8/1988 (98/98/99)
- TERRE HAUTE HIT 97...ON BOTH 8/27/2024 AND 8/30/2024...
HUF HAS HIT 97+ ON ONLY 7 DAYS SINCE 2013 (LAST 97, 8/25/23)
- BLOOMINGTON HIT 96...ON 8/30/2024...
BMG AIRPORTS HOTTEST DAY SINCE 9/21/2022 (100F)
- SHELBYVILLE HIT 98...ON 8/30/2023... GEZ AIRPORTS HOTTEST DAY
SINCE 7/5/2022 (100F)
$$
AGM