Weather Records on 30 September 1971

1,359 weather records were set or tied worldwide on 30 September 1971. Highest significance: Winkelman 6 S, US.

Key Facts for 30 September 1971

On 30 September 1971, 1,359 weather records were set or tied at long-record stations worldwide.
496 were record highs and 295 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 114 monthly and 1,244 daily.
Winkelman 6 S set a daily record precipitation of 59.2 mm (2.3 in) on 30 September 1971.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 434 records.

Record Map

1,359 stations

1,359 station records on 30 September 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Winkelman 6 S	United States	Record daily precipitation	59.2 mm (2.3 in)	64 of 100 (Major)
Crookston NW Exp STN	United States	Record daily precipitation	74.7 mm (2.9 in)	61 of 100 (Major)
Superior	United States	Record daily precipitation	66.5 mm (2.6 in)	59 of 100 (Notable)
Mine Centre	Canada	Record daily precipitation	71.1 mm (2.8 in)	58 of 100 (Notable)
Boscabel	Australia	Record daily precipitation	32.5 mm (1.3 in)	57 of 100 (Notable)
Cape Leeuwin	Australia	Record daily precipitation	37.6 mm (1.5 in)	56 of 100 (Notable)
Crater Lake Nps HQ	United States	Record daily snowfall	17.8 cm (7.0 in)	55 of 100 (Notable)
Collie	Australia	Record daily precipitation	57.7 mm (2.3 in)	54 of 100 (Notable)
Bowman Dam	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Lac Vieux Desert	United States	Record daily precipitation	43.7 mm (1.7 in)	54 of 100 (Notable)
Rhinelander	United States	Record daily precipitation	62.2 mm (2.4 in)	54 of 100 (Notable)
Fort Frances	Canada	Record daily precipitation	55.4 mm (2.2 in)	53 of 100 (Notable)
Perth Regional Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	52 of 100 (Notable)
Durango	United States	Record daily precipitation	45.0 mm (1.8 in)	51 of 100 (Notable)
Willow Rsvr	United States	Record daily precipitation	61.2 mm (2.4 in)	51 of 100 (Notable)
Hatteras	United States	Record daily precipitation	138.4 mm (5.4 in)	51 of 100 (Notable)
Arthur River	Australia	Record daily precipitation	27.9 mm (1.1 in)	50 of 100 (Notable)
Portola	United States	Record daily snowfall	10.2 cm (4.0 in)	50 of 100 (Notable)
Mundaring Weir	Australia	Record daily precipitation	79.0 mm (3.1 in)	49 of 100 (Notable)
Hailey 3 NNW	United States	Record daily snowfall	5.1 cm (2.0 in)	49 of 100 (Notable)
New Holland	United States	Record daily precipitation	165.1 mm (6.5 in)	49 of 100 (Notable)
Iawakia	Australia	Record daily precipitation	33.5 mm (1.3 in)	48 of 100 (Notable)
Jingalup	Australia	Record daily precipitation	27.9 mm (1.1 in)	48 of 100 (Notable)
Intl Falls Intl AP	United States	Record daily precipitation	60.2 mm (2.4 in)	48 of 100 (Notable)
Kwobrup	Australia	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Aurora	Brazil	Record daily precipitation	25.3 mm (1.0 in)	47 of 100 (Notable)
Pinal Rch	United States	Record daily precipitation	49.5 mm (1.9 in)	47 of 100 (Notable)
Roosevelt 1 S	United States	Record daily precipitation	48.3 mm (1.9 in)	47 of 100 (Notable)
Tucson Magnetic Obsy	United States	Record daily precipitation	32.8 mm (1.3 in)	47 of 100 (Notable)
Cuba	United States	Record daily precipitation	37.6 mm (1.5 in)	47 of 100 (Notable)
Boyup Brook	Australia	Record daily precipitation	31.8 mm (1.3 in)	46 of 100 (Notable)
Lake Pingrup	Australia	Record daily precipitation	27.9 mm (1.1 in)	46 of 100 (Notable)
Elizabeth City	United States	Record daily precipitation	114.8 mm (4.5 in)	46 of 100 (Notable)
Hillsboro 3 N	United States	Record daily precipitation	58.9 mm (2.3 in)	46 of 100 (Notable)
Piaxtla	Mexico	Record daily precipitation	84.1 mm (3.3 in)	45 of 100 (Notable)
Lavras da Mangabeira (Dnocs)	Brazil	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Tahoe City	United States	Record daily snowfall	10.2 cm (4.0 in)	44 of 100 (Notable)
Boca	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Perillup	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Roelands Village	Australia	Record daily precipitation	36.1 mm (1.4 in)	42 of 100 (Notable)
Katanning Comparison	Australia	Record daily precipitation	29.5 mm (1.2 in)	42 of 100 (Notable)
The Oaks	Australia	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Scotia	United States	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Fallon Exp STN	United States	Record low maximum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Lakeview 2 NNW	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Newport News Press Bld	United States	Record daily precipitation	88.9 mm (3.5 in)	42 of 100 (Notable)
Cape Naturaliste	Australia	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Pardelup	Australia	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Fall Rvr Mills	United States	Record daily precipitation	31.8 mm (1.3 in)	41 of 100 (Notable)
Tiger Creek Ph	United States	Record daily precipitation	34.8 mm (1.4 in)	41 of 100 (Notable)
El Vado Dam	United States	Record daily precipitation	49.5 mm (1.9 in)	41 of 100 (Notable)
Minocqua	United States	Record daily precipitation	51.1 mm (2.0 in)	41 of 100 (Notable)
Beaufort	Australia	Record daily precipitation	37.1 mm (1.5 in)	40 of 100 (Notable)
Broomehill	Australia	Record daily precipitation	29.0 mm (1.1 in)	40 of 100 (Notable)
Darkan	Australia	Record daily precipitation	35.1 mm (1.4 in)	40 of 100 (Notable)
McNary 2N	United States	Record daily precipitation	46.7 mm (1.8 in)	40 of 100 (Notable)
Orland	United States	Record low minimum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Cimarron 4 SW	United States	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Donnybrook	Australia	Record daily precipitation	46.5 mm (1.8 in)	39 of 100 (Notable)
Jerome	United States	Record daily precipitation	28.4 mm (1.1 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,359 records

Records set or tied on 30 September 1971 by type: Highest daily maximum 107, Lowest daily maximum 233, Highest daily minimum 389, Lowest daily minimum 62, Heaviest daily rainfall 517, Heaviest daily snowfall 39, Deepest snow cover 12.

Records on 30 September 1971 by type
Record type	Records
Highest daily maximum	107
Lowest daily maximum	233
Highest daily minimum	389
Lowest daily minimum	62
Heaviest daily rainfall	517
Heaviest daily snowfall	39
Deepest snow cover	12

Records on 30 September 1971 by timescale: all-time 1, monthly 114, daily 1,244.

How Much Records Were Beaten By

1,145 broken records

Margins by which the 1,145 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

30 September 1971

Top 20 records on 30 September 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1971	Winkelman 6 S, US	daily rain	59.2 mm (2.3 in)	46.8 mm (1.8 in)	58 years	64 of 100 (Major)
30 September 1971	Crookston NW Exp STN, US	daily rain	74.7 mm (2.9 in)	48.8 mm (1.9 in)	45 years	61 of 100 (Major)
30 September 1971	Superior, US	daily rain	66.5 mm (2.6 in)	52.3 mm (2.1 in)	49 years	59 of 100 (Notable)
30 September 1971	Mine Centre, CA	daily rain	71.1 mm (2.8 in)	49.0 mm (1.9 in)	45 years	58 of 100 (Notable)
30 September 1971	Boscabel, AU	daily rain	32.5 mm (1.3 in)	19.3 mm (0.8 in)	40 years	57 of 100 (Notable)
30 September 1971	Cape Leeuwin, AU	daily rain	37.6 mm (1.5 in)	23.1 mm (0.9 in)	34 years	56 of 100 (Notable)
30 September 1971	Crater Lake Nps HQ, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	49 years	55 of 100 (Notable)
30 September 1971	Collie, AU	monthly rain	57.7 mm (2.3 in)	14.5 mm (0.6 in)	60 years	54 of 100 (Notable)
30 September 1971	Bowman Dam, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	74 years	54 of 100 (Notable)
30 September 1971	Lac Vieux Desert, US	daily rain	43.7 mm (1.7 in)	27.4 mm (1.1 in)	62 years	54 of 100 (Notable)
30 September 1971	Rhinelander, US	daily rain	62.2 mm (2.4 in)	39.1 mm (1.5 in)	44 years	54 of 100 (Notable)
30 September 1971	Fort Frances, CA	daily rain	55.4 mm (2.2 in)	35.1 mm (1.4 in)	26 years	53 of 100 (Notable)
30 September 1971	Perth Regional Office, AU	daily rain	34.5 mm (1.4 in)	13.7 mm (0.5 in)	79 years	52 of 100 (Notable)
30 September 1971	Durango, US	daily rain	45.0 mm (1.8 in)	26.2 mm (1.0 in)	33 years	51 of 100 (Notable)
30 September 1971	Willow Rsvr, US	daily rain	61.2 mm (2.4 in)	43.9 mm (1.7 in)	29 years	51 of 100 (Notable)
30 September 1971	Hatteras, US	daily rain	138.4 mm (5.4 in)	104.4 mm (4.1 in)	13 years	51 of 100 (Notable)
30 September 1971	Arthur River, AU	daily rain	27.9 mm (1.1 in)	14.4 mm (0.6 in)	40 years	50 of 100 (Notable)
30 September 1971	Portola, US	monthly snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	51 years	50 of 100 (Notable)
30 September 1971	Mundaring Weir, AU	monthly rain	79.0 mm (3.1 in)	24.1 mm (0.9 in)	24 years	49 of 100 (Notable)
30 September 1971	Hailey 3 NNW, US	monthly snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	76 years	49 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

1806 to 1971

Records set or tied on this calendar date in each year from 1806 to 1971. 1971 had 1,359 records.

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

Records on 09-30 in each year
Year	Records
1806	1
1813	1
1817	1
1819	2
1834	1
1841	1
1842	1
1847	1
1853	1
1854	1
1855	1
1861	1
1862	1
1866	1
1868	2
1869	3
1870	1
1874	1
1877	1
1878	1
1881	5
1883	2
1885	1
1886	3
1887	1
1888	4
1889	1
1892	2
1893	3
1894	8
1895	5
1896	2
1897	3
1898	3
1899	12
1900	4
1901	11
1902	7
1903	9
1904	14
1905	25
1906	14
1907	16
1908	18
1909	10
1910	5
1911	47
1912	47
1913	10
1914	33
1915	84
1916	209
1917	19
1918	45
1919	28
1920	71
1921	61
1922	71
1923	183
1924	243
1925	211
1926	194
1927	486
1928	560
1929	181
1930	110
1931	225
1932	363
1933	437
1934	398
1935	209
1936	432
1937	417
1938	428
1939	371
1940	316
1941	482
1942	405
1943	404
1944	369
1945	889
1946	320
1947	433
1948	267
1949	366
1950	731
1951	597
1952	504
1953	1,136
1954	1,059
1955	406
1956	350
1957	663
1958	442
1959	1,159
1960	161
1961	618
1962	202
1963	818
1964	332
1965	459
1966	592
1967	859
1968	449
1969	465
1970	334
1971	1,359
1972	676
1973	407
1974	742
1975	686
1976	775
1977	870
1978	399
1979	479
1980	832
1981	688
1982	806
1983	1,102
1984	1,267
1985	1,892
1986	1,805
1987	649
1988	453
1989	713
1990	665
1991	949
1992	980
1993	988
1994	816
1995	1,061
1996	1,396
1997	729
1998	1,206
1999	1,144
2000	887
2001	699
2002	677
2003	1,079
2004	573
2005	761
2006	617
2007	841
2008	585
2009	826
2010	1,059
2011	1,258
2012	637
2013	634
2014	529
2015	997
2016	746
2017	404
2018	717
2019	2,192
2020	554
2021	823
2022	563
2023	1,012
2024	948
2025	559
2026	529

Download the Data

Data for records on 1971-09-30: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 25	1,081
25 to 50	39
50 to 75	13
75 to 100	3
100 to 125	7
125 to 150	1
150 to 175	0
175 to 200	1