Weather Records on 15 September 1970

1,157 weather records were set or tied worldwide on 15 September 1970. Highest significance: Delungra (Craigmore), AU.

Key Facts for 15 September 1970

On 15 September 1970, 1,157 weather records were set or tied at long-record stations worldwide.
92 were record highs and 499 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 20 monthly and 1,136 daily.
Delungra (Craigmore) set a daily record precipitation of 51.6 mm (2.0 in) on 15 September 1970.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 409 records.

Record Map

1,157 stations

1,157 station records on 15 September 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Delungra (Craigmore)	Australia	Record daily precipitation	51.6 mm (2.0 in)	71 of 100 (Major)
Ft Sumner	United States	Record daily precipitation	179.6 mm (7.1 in)	70 of 100 (Major)
Mulga Downs	Australia	Record daily precipitation	33.3 mm (1.3 in)	61 of 100 (Major)
Putten (Gld)	Netherlands	Record daily precipitation	51.4 mm (2.0 in)	60 of 100 (Major)
Red Range (Victoria St)	Australia	Record daily precipitation	67.6 mm (2.7 in)	59 of 100 (Notable)
Rylstone (Ilford Rd)	Australia	Record daily precipitation	48.8 mm (1.9 in)	59 of 100 (Notable)
Hoofddorp	Netherlands	Record daily precipitation	38.8 mm (1.5 in)	53 of 100 (Notable)
Vinton	United States	Record daily precipitation	52.1 mm (2.1 in)	53 of 100 (Notable)
Glenmorgan	India	Record daily precipitation	89.0 mm (3.5 in)	52 of 100 (Notable)
Irkutsk	Russia	Record daily precipitation	30.2 mm (1.2 in)	50 of 100 (Notable)
Inglewood Post Office	Australia	Record daily precipitation	36.3 mm (1.4 in)	49 of 100 (Notable)
Tulloona (Coolanga)	Australia	Record daily precipitation	29.7 mm (1.2 in)	49 of 100 (Notable)
Bonshaw (Campbell St)	Australia	Record daily precipitation	41.7 mm (1.6 in)	49 of 100 (Notable)
Caroda Post Office	Australia	Record daily precipitation	48.0 mm (1.9 in)	49 of 100 (Notable)
Coolatai (Willunga)	Australia	Record daily precipitation	47.8 mm (1.9 in)	49 of 100 (Notable)
Ilford (Tara)	Australia	Record daily precipitation	33.8 mm (1.3 in)	49 of 100 (Notable)
Jackson 3 NW	United States	Record daily precipitation	74.4 mm (2.9 in)	49 of 100 (Notable)
Grinnell 3 SW	United States	Record daily precipitation	74.9 mm (2.9 in)	48 of 100 (Notable)
Glen Innes Post Office	Australia	Record daily precipitation	64.3 mm (2.5 in)	47 of 100 (Notable)
Goolma (Brooklyn)	Australia	Record daily precipitation	49.3 mm (1.9 in)	47 of 100 (Notable)
Dubbo (Darling Street)	Australia	Record daily precipitation	34.5 mm (1.4 in)	47 of 100 (Notable)
Anna	Russia	Record daily precipitation	32.1 mm (1.3 in)	47 of 100 (Notable)
Pella 1S	United States	Record daily precipitation	73.2 mm (2.9 in)	47 of 100 (Notable)
Goodooga (Mogila)	Australia	Record daily precipitation	27.2 mm (1.1 in)	46 of 100 (Notable)
Coolatai (Orana)	Australia	Record daily precipitation	34.0 mm (1.3 in)	46 of 100 (Notable)
Areal (Granja Gabi)	Brazil	Record daily precipitation	28.0 mm (1.1 in)	46 of 100 (Notable)
Collingwood	Canada	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Pbo Anantapur	India	Record daily precipitation	115.6 mm (4.6 in)	46 of 100 (Notable)
Saginaw Mbs Intl AP	United States	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Elliston	Australia	Record daily precipitation	36.6 mm (1.4 in)	45 of 100 (Notable)
Rockdale	Australia	Record daily precipitation	32.8 mm (1.3 in)	45 of 100 (Notable)
Cudgegong (Kiora)	Australia	Record daily precipitation	43.2 mm (1.7 in)	45 of 100 (Notable)
Mudgee (George Street)	Australia	Record daily precipitation	48.0 mm (1.9 in)	45 of 100 (Notable)
Oudenbosch	Netherlands	Record daily precipitation	41.9 mm (1.6 in)	45 of 100 (Notable)
Wilsonville	United States	Record daily precipitation	50.3 mm (2.0 in)	45 of 100 (Notable)
Oberlin	United States	Record daily precipitation	69.9 mm (2.8 in)	44 of 100 (Notable)
Dansville	United States	Record daily precipitation	40.9 mm (1.6 in)	44 of 100 (Notable)
Bybera	Australia	Record daily precipitation	34.3 mm (1.4 in)	43 of 100 (Notable)
Heemstede	Netherlands	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Zegveld	Netherlands	Record daily precipitation	46.5 mm (1.8 in)	43 of 100 (Notable)
Grand Haven Fire Dept	United States	Record daily precipitation	40.9 mm (1.6 in)	43 of 100 (Notable)
Weddingstedt	Germany	Record daily precipitation	42.4 mm (1.7 in)	42 of 100 (Notable)
Wahlsburg-Lippoldsberg	Germany	Record daily precipitation	31.6 mm (1.2 in)	42 of 100 (Notable)
Dillenburg	Germany	Record daily precipitation	32.7 mm (1.3 in)	42 of 100 (Notable)
Amsterdam	Netherlands	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Ashland #2	United States	Record daily precipitation	42.2 mm (1.7 in)	42 of 100 (Notable)
Winnebago	United States	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Goondiwindi Post Office	Australia	Record daily precipitation	36.6 mm (1.4 in)	41 of 100 (Notable)
Bengalla	Australia	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Armidale (Radio Station 2Ad)	Australia	Record daily precipitation	30.2 mm (1.2 in)	41 of 100 (Notable)
Budingen	Germany	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Brewster 4W	United States	Record daily precipitation	57.9 mm (2.3 in)	41 of 100 (Notable)
Orleans 2 W	United States	Record daily precipitation	48.3 mm (1.9 in)	41 of 100 (Notable)
Mount Morris	Australia	Record daily precipitation	31.5 mm (1.2 in)	40 of 100 (Notable)
Sangola	India	Record daily precipitation	104.0 mm (4.1 in)	40 of 100 (Notable)
Fatehpur	India	Record daily precipitation	102.8 mm (4.0 in)	40 of 100 (Notable)
Scheveningen	Netherlands	Record daily precipitation	30.9 mm (1.2 in)	40 of 100 (Notable)
Terowie (Parnaroo Sect 50)	Australia	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Willowvale	Australia	Record daily precipitation	36.6 mm (1.4 in)	39 of 100 (Notable)
Texas Post Office	Australia	Record daily precipitation	45.2 mm (1.8 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,157 records

Records set or tied on 15 September 1970 by type: Highest daily maximum 29, Lowest daily maximum 213, Highest daily minimum 63, Lowest daily minimum 286, Heaviest daily rainfall 563, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 15 September 1970 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	213
Highest daily minimum	63
Lowest daily minimum	286
Heaviest daily rainfall	563
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 15 September 1970 by timescale: all-time 1, monthly 20, daily 1,136.

How Much Records Were Beaten By

964 broken records

Margins by which the 964 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 65.0. Ties are not counted.

Top 20 by Significance

15 September 1970

Top 20 records on 15 September 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1970	Delungra (Craigmore), AU	daily rain	51.6 mm (2.0 in)	40.9 mm (1.6 in)	77 years	71 of 100 (Major)
15 September 1970	Ft Sumner, US	all-time rain	179.6 mm (7.1 in)	65.0 mm (2.6 in)	15 years	70 of 100 (Major)
15 September 1970	Mulga Downs, AU	daily rain	33.3 mm (1.3 in)	33.3 mm (1.3 in)	60 years	61 of 100 (Major)
15 September 1970	Putten (Gld), NL	daily rain	51.4 mm (2.0 in)	29.1 mm (1.1 in)	35 years	60 of 100 (Major)
15 September 1970	Red Range (Victoria St), AU	daily rain	67.6 mm (2.7 in)	34.3 mm (1.4 in)	48 years	59 of 100 (Notable)
15 September 1970	Rylstone (Ilford Rd), AU	daily rain	48.8 mm (1.9 in)	24.7 mm (1.0 in)	78 years	59 of 100 (Notable)
15 September 1970	Hoofddorp, NL	daily rain	38.8 mm (1.5 in)	14.4 mm (0.6 in)	70 years	53 of 100 (Notable)
15 September 1970	Vinton, US	daily rain	52.1 mm (2.1 in)	36.1 mm (1.4 in)	74 years	53 of 100 (Notable)
15 September 1970	Glenmorgan, IN	monthly rain	89.0 mm (3.5 in)	18.1 mm (0.7 in)	65 years	52 of 100 (Notable)
15 September 1970	Irkutsk, RU	daily rain	30.2 mm (1.2 in)	13.6 mm (0.5 in)	60 years	50 of 100 (Notable)
15 September 1970	Inglewood Post Office, AU	daily rain	36.3 mm (1.4 in)	19.3 mm (0.8 in)	77 years	49 of 100 (Notable)
15 September 1970	Tulloona (Coolanga), AU	daily rain	29.7 mm (1.2 in)	17.0 mm (0.7 in)	78 years	49 of 100 (Notable)
15 September 1970	Bonshaw (Campbell St), AU	daily rain	41.7 mm (1.6 in)	18.6 mm (0.7 in)	77 years	49 of 100 (Notable)
15 September 1970	Caroda Post Office, AU	daily rain	48.0 mm (1.9 in)	39.1 mm (1.5 in)	25 years	49 of 100 (Notable)
15 September 1970	Coolatai (Willunga), AU	daily rain	47.8 mm (1.9 in)	27.5 mm (1.1 in)	48 years	49 of 100 (Notable)
15 September 1970	Ilford (Tara), AU	daily rain	33.8 mm (1.3 in)	26.2 mm (1.0 in)	25 years	49 of 100 (Notable)
15 September 1970	Jackson 3 NW, US	daily rain	74.4 mm (2.9 in)	62.7 mm (2.5 in)	13 years	49 of 100 (Notable)
15 September 1970	Grinnell 3 SW, US	daily rain	74.9 mm (2.9 in)	42.1 mm (1.7 in)	57 years	48 of 100 (Notable)
15 September 1970	Glen Innes Post Office, AU	daily rain	64.3 mm (2.5 in)	23.7 mm (0.9 in)	48 years	47 of 100 (Notable)
15 September 1970	Goolma (Brooklyn), AU	daily rain	49.3 mm (1.9 in)	39.1 mm (1.5 in)	9 years	47 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

1797 to 1970

Records set or tied on this calendar date in each year from 1797 to 1970. 1970 had 1,157 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1970-09-15: 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 10	759
10 to 20	135
20 to 30	47
30 to 40	13
40 to 50	5
50 to 60	1
60 to 70	4