Weather Records on 17 September 1988

982 weather records were set or tied worldwide on 17 September 1988. Highest significance: Chatsbury (Maryland), AU.

Key Facts for 17 September 1988

On 17 September 1988, 982 weather records were set or tied at long-record stations worldwide.
377 were record highs and 149 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 25 monthly and 950 daily.
Chatsbury (Maryland) set a monthly record daily precipitation of 96.0 mm (3.8 in) on 17 September 1988.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 419 records.

Record Map

982 stations

982 station records on 17 September 1988 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1988: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chatsbury (Maryland)	Australia	Record daily precipitation	96.0 mm (3.8 in)	81 of 100 (Exceptional)
Camacho	Mexico	Record daily precipitation	279.9 mm (11.0 in)	73 of 100 (Major)
Camden (Brownlow Hill)	Australia	Record daily precipitation	55.4 mm (2.2 in)	70 of 100 (Major)
Wadley	United States	Record daily precipitation	202.7 mm (8.0 in)	70 of 100 (Major)
Northport	United States	Record daily precipitation	31.2 mm (1.2 in)	69 of 100 (Major)
Las Comitas	Mexico	Record daily precipitation	358.4 mm (14.1 in)	67 of 100 (Major)
La Cruz	Mexico	Record daily precipitation	188.0 mm (7.4 in)	66 of 100 (Major)
Reserve	United States	Record daily precipitation	144.8 mm (5.7 in)	61 of 100 (Major)
Manchester 4 W	United States	Record daily precipitation	72.4 mm (2.9 in)	59 of 100 (Notable)
Corinth 5 WSW	United States	Record daily precipitation	73.2 mm (2.9 in)	56 of 100 (Notable)
Hamlin 1SW	United States	Record daily precipitation	67.3 mm (2.6 in)	55 of 100 (Notable)
Presa Venustiano Carranza	Mexico	Record daily precipitation	158.8 mm (6.3 in)	54 of 100 (Notable)
Carbon Hill 4SE	United States	Record daily precipitation	215.6 mm (8.5 in)	53 of 100 (Notable)
Monticello 3 NE	United States	Record daily precipitation	78.5 mm (3.1 in)	53 of 100 (Notable)
Venice	United States	Record high minimum temperature	27.8 C (82.0 F)	52 of 100 (Notable)
Pymble (Canisius College)	Australia	Record daily precipitation	53.2 mm (2.1 in)	51 of 100 (Notable)
Westmead Austral Avenue	Australia	Record daily precipitation	39.0 mm (1.5 in)	51 of 100 (Notable)
Ourimbah (Dog Trap Road)	Australia	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
Bendoc Park	Australia	Record daily precipitation	34.4 mm (1.4 in)	50 of 100 (Notable)
Mission 4 W	United States	Record daily precipitation	84.3 mm (3.3 in)	50 of 100 (Notable)
Second Valley (Poolamacca)	Australia	Record daily precipitation	28.0 mm (1.1 in)	49 of 100 (Notable)
Bermagui South (Young Street)	Australia	Record daily precipitation	51.4 mm (2.0 in)	49 of 100 (Notable)
Aunet	Norway	Record daily precipitation	37.6 mm (1.5 in)	49 of 100 (Notable)
Stuttgart	United States	Record daily precipitation	87.4 mm (3.4 in)	49 of 100 (Notable)
Beeville 5 NE	United States	Record daily precipitation	78.2 mm (3.1 in)	49 of 100 (Notable)
Newport Bowling Club	Australia	Record daily precipitation	70.0 mm (2.8 in)	48 of 100 (Notable)
Aksa	Russia	Record daily precipitation	46.5 mm (1.8 in)	48 of 100 (Notable)
Walnut Grove	United States	Record daily precipitation	127.0 mm (5.0 in)	48 of 100 (Notable)
Gordon Golf Club	Australia	Record daily precipitation	52.4 mm (2.1 in)	47 of 100 (Notable)
Humula (Rylands)	Australia	Record daily precipitation	28.2 mm (1.1 in)	47 of 100 (Notable)
Wetumpka	United States	Record daily precipitation	128.3 mm (5.1 in)	47 of 100 (Notable)
Brownsville	United States	Record daily precipitation	71.1 mm (2.8 in)	47 of 100 (Notable)
McCook	United States	Record daily precipitation	115.6 mm (4.6 in)	46 of 100 (Notable)
Mount Keira Scout Camp	Australia	Record daily precipitation	59.2 mm (2.3 in)	45 of 100 (Notable)
Kanalohuluhulu 1075	United States	Record low maximum temperature	13.3 C (55.9 F)	45 of 100 (Notable)
El Reno 1 N	United States	Record daily precipitation	58.9 mm (2.3 in)	44 of 100 (Notable)
London Corbin AP	United States	Record daily precipitation	69.3 mm (2.7 in)	44 of 100 (Notable)
Lindfield West	Australia	Record daily precipitation	43.0 mm (1.7 in)	43 of 100 (Notable)
Windsor Bowling Club	Australia	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Frenchs Forest (Frenchs Forest	Australia	Record daily precipitation	51.8 mm (2.0 in)	42 of 100 (Notable)
Seven Hills (Collins St)	Australia	Record daily precipitation	38.4 mm (1.5 in)	42 of 100 (Notable)
Tenosique (Smn)	Mexico	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Epping Chester Street	Australia	Record daily precipitation	38.8 mm (1.5 in)	41 of 100 (Notable)
Lucas Heights (Ansto)	Australia	Record daily precipitation	38.6 mm (1.5 in)	41 of 100 (Notable)
Bringelly (Maryland)	Australia	Record daily precipitation	46.4 mm (1.8 in)	41 of 100 (Notable)
Berowra (Goodwyn Road)	Australia	Record daily precipitation	55.4 mm (2.2 in)	41 of 100 (Notable)
Braidwood (Wallace Street)	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Ripley	United States	Record daily precipitation	71.6 mm (2.8 in)	41 of 100 (Notable)
Tamazula de Victoria	Mexico	Record daily precipitation	79.0 mm (3.1 in)	40 of 100 (Notable)
Mather 3 NW	United States	Record daily precipitation	34.3 mm (1.4 in)	40 of 100 (Notable)
Sydney Airport AMO	Australia	Record daily precipitation	41.2 mm (1.6 in)	39 of 100 (Notable)
Bindi	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Juarez	Mexico	Record daily precipitation	112.8 mm (4.4 in)	39 of 100 (Notable)
Ashland	United States	Record daily precipitation	71.9 mm (2.8 in)	39 of 100 (Notable)
Appila	Australia	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Randwick Bowling Club	Australia	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record daily precipitation	52.2 mm (2.1 in)	38 of 100 (Notable)
Braidwood (Krawarree)	Australia	Record daily precipitation	53.0 mm (2.1 in)	38 of 100 (Notable)
Sabinas (Dge)	Mexico	Record daily precipitation	109.5 mm (4.3 in)	38 of 100 (Notable)
Camilla 3SE	United States	Record high minimum temperature	23.3 C (73.9 F)	38 of 100 (Notable)

Counts by Type and Timescale

982 records

Records set or tied on 17 September 1988 by type: Highest daily maximum 113, Lowest daily maximum 82, Highest daily minimum 264, Lowest daily minimum 67, Heaviest daily rainfall 451, Heaviest daily snowfall 4, Deepest snow cover 1.

Records on 17 September 1988 by type
Record type	Records
Highest daily maximum	113
Lowest daily maximum	82
Highest daily minimum	264
Lowest daily minimum	67
Heaviest daily rainfall	451
Heaviest daily snowfall	4
Deepest snow cover	1

Records on 17 September 1988 by timescale: all-time 7, monthly 25, daily 950.

How Much Records Were Beaten By

762 broken records

Margins by which the 762 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 230.6. Ties are not counted.

Top 20 by Significance

17 September 1988

Top 20 records on 17 September 1988 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1988	Chatsbury (Maryland), AU	monthly rain	96.0 mm (3.8 in)	43.4 mm (1.7 in)	73 years	81 of 100 (Exceptional)
17 September 1988	Camacho, MX	all-time rain	279.9 mm (11.0 in)	89.9 mm (3.5 in)	40 years	73 of 100 (Major)
17 September 1988	Camden (Brownlow Hill), AU	daily rain	55.4 mm (2.2 in)	29.7 mm (1.2 in)	85 years	70 of 100 (Major)
17 September 1988	Wadley, US	all-time rain	202.7 mm (8.0 in)	82.3 mm (3.2 in)	16 years	70 of 100 (Major)
17 September 1988	Northport, US	daily rain	31.2 mm (1.2 in)	19.0 mm (0.7 in)	88 years	69 of 100 (Major)
17 September 1988	Las Comitas, MX	all-time rain	358.4 mm (14.1 in)	230.6 mm (9.1 in)	11 years	67 of 100 (Major)
17 September 1988	La Cruz, MX	all-time rain	188.0 mm (7.4 in)	56.2 mm (2.2 in)	20 years	66 of 100 (Major)
17 September 1988	Reserve, US	daily rain	144.8 mm (5.7 in)	78.3 mm (3.1 in)	46 years	61 of 100 (Major)
17 September 1988	Manchester 4 W, US	daily rain	72.4 mm (2.9 in)	31.8 mm (1.3 in)	87 years	59 of 100 (Notable)
17 September 1988	Corinth 5 WSW, US	daily rain	73.2 mm (2.9 in)	36.6 mm (1.4 in)	87 years	56 of 100 (Notable)
17 September 1988	Hamlin 1SW, US	daily rain	67.3 mm (2.6 in)	51.6 mm (2.0 in)	73 years	55 of 100 (Notable)
17 September 1988	Presa Venustiano Carranza, MX	all-time rain	158.8 mm (6.3 in)	39.9 mm (1.6 in)	33 years	54 of 100 (Notable)
17 September 1988	Carbon Hill 4SE, US	all-time rain	215.6 mm (8.5 in)	48.0 mm (1.9 in)	5 years	53 of 100 (Notable)
17 September 1988	Monticello 3 NE, US	daily rain	78.5 mm (3.1 in)	57.9 mm (2.3 in)	28 years	53 of 100 (Notable)
17 September 1988	Venice, US	daily high min	27.8 C (82.0 F)	3.9 C (7.0 F)	60 years	52 of 100 (Notable)
17 September 1988	Pymble (Canisius College), AU	daily rain	53.2 mm (2.1 in)	43.0 mm (1.7 in)	26 years	51 of 100 (Notable)
17 September 1988	Westmead Austral Avenue, AU	daily rain	39.0 mm (1.5 in)	32.1 mm (1.3 in)	40 years	51 of 100 (Notable)
17 September 1988	Ourimbah (Dog Trap Road), AU	daily rain	64.8 mm (2.6 in)	57.2 mm (2.3 in)	26 years	50 of 100 (Notable)
17 September 1988	Bendoc Park, AU	daily rain	34.4 mm (1.4 in)	10.8 mm (0.4 in)	78 years	50 of 100 (Notable)
17 September 1988	Mission 4 W, US	daily rain	84.3 mm (3.3 in)	57.6 mm (2.3 in)	63 years	50 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1796 to 1988

Records set or tied on this calendar date in each year from 1796 to 1988. 1988 had 982 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-17 in each year
Year	Records
1796	1
1797	1
1805	1
1833	1
1834	1
1837	2
1845	1
1847	3
1848	1
1850	1
1851	2
1853	2
1854	2
1859	1
1862	1
1867	1
1870	1
1871	1
1872	1
1873	1
1874	1
1875	1
1877	1
1881	1
1882	2
1884	3
1885	3
1886	6
1888	2
1889	8
1891	1
1893	3
1894	1
1895	4
1896	9
1897	4
1898	7
1899	1
1900	4
1901	5
1902	5
1903	28
1904	2
1905	17
1906	10
1907	15
1908	13
1909	7
1910	38
1911	15
1912	17
1913	28
1914	38
1915	48
1916	40
1917	255
1918	41
1919	21
1920	40
1921	66
1922	47
1923	159
1924	80
1925	338
1926	154
1927	420
1928	78
1929	168
1930	147
1931	564
1932	425
1933	415
1934	246
1935	321
1936	219
1937	463
1938	363
1939	294
1940	326
1941	328
1942	581
1943	513
1944	403
1945	614
1946	620
1947	680
1948	630
1949	292
1950	412
1951	359
1952	263
1953	344
1954	449
1955	649
1956	437
1957	405
1958	806
1959	1,210
1960	385
1961	657
1962	432
1963	297
1964	559
1965	1,394
1966	523
1967	331
1968	691
1969	352
1970	412
1971	898
1972	556
1973	638
1974	491
1975	478
1976	636
1977	641
1978	764
1979	804
1980	794
1981	1,155
1982	606
1983	862
1984	1,006
1985	448
1986	1,314
1987	926
1988	982
1989	863
1990	650
1991	1,407
1992	686
1993	950
1994	986
1995	1,145
1996	1,342
1997	1,057
1998	1,137
1999	1,102
2000	1,318
2001	895
2002	1,025
2003	586
2004	872
2005	1,042
2006	1,344
2007	752
2008	886
2009	871
2010	907
2011	1,116
2012	597
2013	1,253
2014	571
2015	953
2016	707
2017	455
2018	899
2019	774
2020	651
2021	345
2022	313
2023	646
2024	954
2025	634
2026	968

Download the Data

Data for records on 1988-09-17: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	743
50 to 100	17
100 to 150	1
150 to 200	0
200 to 250	1