Weather Records on 15 September 1971

598 weather records were set or tied worldwide on 15 September 1971. Highest significance: Junqueiro, BR.

Key Facts for 15 September 1971

On 15 September 1971, 598 weather records were set or tied at long-record stations worldwide.
250 were record highs and 128 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 13 monthly and 579 daily.
Junqueiro set a daily record precipitation of 38.6 mm (1.5 in) on 15 September 1971.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 412 records.

Record Map

598 stations

598 station records on 15 September 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Junqueiro	Brazil	Record daily precipitation	38.6 mm (1.5 in)	47 of 100 (Notable)
Fazenda Jardim	Brazil	Record daily precipitation	29.2 mm (1.1 in)	46 of 100 (Notable)
Uruque	Brazil	Record daily precipitation	45.5 mm (1.8 in)	44 of 100 (Notable)
Port Hastings	Canada	Record daily precipitation	64.8 mm (2.6 in)	43 of 100 (Notable)
Orange (McLaughlin St)	Australia	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	10.5 C (50.9 F)	41 of 100 (Notable)
Millinocket	United States	Record daily precipitation	43.7 mm (1.7 in)	41 of 100 (Notable)
Livermore	United States	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Mama	Russia	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Valley City 3 NNW	United States	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
New Orleans Audubon	United States	Record daily precipitation	65.5 mm (2.6 in)	37 of 100 (Notable)
Spalding	Australia	Record daily precipitation	26.9 mm (1.1 in)	36 of 100 (Notable)
Borenore Store	Australia	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Voroncovka	Russia	Record daily precipitation	34.1 mm (1.3 in)	36 of 100 (Notable)
Sable Island	Canada	Record daily precipitation	37.6 mm (1.5 in)	35 of 100 (Notable)
Nordby (Fano)	Denmark	Record low minimum temperature	2.1 C (35.8 F)	34 of 100 (Routine)
Crockett	United States	Record high maximum temperature	41.7 C (107.1 F)	34 of 100 (Routine)
Woodland 1 WNW	United States	Record high minimum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Paradis 7 S	United States	Record daily precipitation	90.2 mm (3.6 in)	34 of 100 (Routine)
Spalding (Bundaleer Reservoir)	Australia	Record daily precipitation	26.9 mm (1.1 in)	33 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	0.8 C (33.4 F)	33 of 100 (Routine)
Fort Huachuca	United States	Record high maximum temperature	34.4 C (93.9 F)	33 of 100 (Routine)
Oberon (Jenolan Caves)	Australia	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Molong (King St)	Australia	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)
Parnu	Estonia	Record low minimum temperature	0.9 C (33.6 F)	32 of 100 (Routine)
Walnut Creek 2 ESE	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Houma	United States	Record daily precipitation	83.8 mm (3.3 in)	32 of 100 (Routine)
Middletown 2 NW	United States	Record high minimum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Franklin 3 NW	United States	Record daily precipitation	63.5 mm (2.5 in)	31 of 100 (Routine)
Los Gatos	United States	Record high maximum temperature	40.6 C (105.1 F)	30 of 100 (Routine)
San Jose	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Paysandu	Uruguay	Record daily precipitation	68.0 mm (2.7 in)	30 of 100 (Routine)
Lorne Peak	Australia	Record daily precipitation	32.0 mm (1.3 in)	29 of 100 (Routine)
Healdsburg	United States	Record high maximum temperature	43.9 C (111.0 F)	29 of 100 (Routine)
Kentfield	United States	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Napa State Hospital	United States	Record high maximum temperature	41.1 C (106.0 F)	29 of 100 (Routine)
San Diego de la Union	Mexico	Record daily precipitation	33.5 mm (1.3 in)	28 of 100 (Routine)
Ixmiquilpan (Smn)	Mexico	Record daily precipitation	84.3 mm (3.3 in)	28 of 100 (Routine)
De Sabla	United States	Record high minimum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
San Jose	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
San Mateo	United States	Record high maximum temperature	40.0 C (104.0 F)	28 of 100 (Routine)
Orange (Canobolas Public Schoo	Australia	Record daily precipitation	33.5 mm (1.3 in)	27 of 100 (Routine)
St Lin des Laurentides	Canada	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Baddeck	Canada	Record daily precipitation	44.7 mm (1.8 in)	27 of 100 (Routine)
Livermore	United States	Record high maximum temperature	42.8 C (109.0 F)	27 of 100 (Routine)
Santa Clara UNIV	United States	Record high minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Santa Rosa	United States	Record high maximum temperature	41.7 C (107.1 F)	27 of 100 (Routine)
Milesovka	Czech Republic	Record low minimum temperature	1.1 C (34.0 F)	26 of 100 (Routine)
Fairmont	United States	Record high minimum temperature	28.3 C (82.9 F)	26 of 100 (Routine)
Graton	United States	Record high maximum temperature	44.4 C (111.9 F)	26 of 100 (Routine)
Kern River Ph 1	United States	Record high minimum temperature	27.8 C (82.0 F)	26 of 100 (Routine)
Orick Prairie Creek Park	United States	Record high maximum temperature	36.1 C (97.0 F)	26 of 100 (Routine)
Santa Clara UNIV	United States	Record high maximum temperature	39.4 C (102.9 F)	26 of 100 (Routine)
Tehachapi	United States	Record high minimum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Covington 8 WNW	United States	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Weddingstedt	Germany	Record low minimum temperature	1.4 C (34.5 F)	25 of 100 (Routine)
Friant Government Camp	United States	Record high maximum temperature	41.7 C (107.1 F)	25 of 100 (Routine)
Kentfield	United States	Record high maximum temperature	40.0 C (104.0 F)	25 of 100 (Routine)
Oceanside Marina	United States	Record high minimum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Visalia	United States	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)

Counts by Type and Timescale

598 records

Records set or tied on 15 September 1971 by type: Highest daily maximum 108, Lowest daily maximum 40, Highest daily minimum 142, Lowest daily minimum 88, Heaviest daily rainfall 218, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 15 September 1971 by type
Record type	Records
Highest daily maximum	108
Lowest daily maximum	40
Highest daily minimum	142
Lowest daily minimum	88
Heaviest daily rainfall	218
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 15 September 1971 by timescale: all-time 6, monthly 13, daily 579.

How Much Records Were Beaten By

474 broken records

Margins by which the 474 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 40.7. Ties are not counted.

Top 20 by Significance

15 September 1971

Top 20 records on 15 September 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1971	Junqueiro, BR	daily rain	38.6 mm (1.5 in)	27.4 mm (1.1 in)	6 years	47 of 100 (Notable)
15 September 1971	Fazenda Jardim, BR	daily rain	29.2 mm (1.1 in)	29.2 mm (1.1 in)	45 years	46 of 100 (Notable)
15 September 1971	Uruque, BR	monthly rain	45.5 mm (1.8 in)	17.5 mm (0.7 in)	39 years	44 of 100 (Notable)
15 September 1971	Port Hastings, CA	daily rain	64.8 mm (2.6 in)	14.8 mm (0.6 in)	80 years	43 of 100 (Notable)
15 September 1971	Orange (McLaughlin St), AU	daily rain	40.6 mm (1.6 in)	13.4 mm (0.5 in)	64 years	42 of 100 (Notable)
15 September 1971	Uppsala_Aut, SE	daily low max	10.5 C (50.9 F)	0.4 C (0.7 F)	115 years	41 of 100 (Notable)
15 September 1971	Millinocket, US	daily rain	43.7 mm (1.7 in)	19.1 mm (0.8 in)	66 years	41 of 100 (Notable)
15 September 1971	Livermore, US	all-time high min	23.9 C (75.0 F)	0.6 C (1.1 F)	40 years	40 of 100 (Notable)
15 September 1971	Mama, RU	daily rain	25.7 mm (1.0 in)	14.5 mm (0.6 in)	13 years	39 of 100 (Notable)
15 September 1971	Valley City 3 NNW, US	daily rain	27.9 mm (1.1 in)	19.5 mm (0.8 in)	37 years	37 of 100 (Notable)
15 September 1971	New Orleans Audubon, US	daily rain	65.5 mm (2.6 in)	29.2 mm (1.1 in)	64 years	37 of 100 (Notable)
15 September 1971	Spalding, AU	daily rain	26.9 mm (1.1 in)	11.7 mm (0.5 in)	38 years	36 of 100 (Notable)
15 September 1971	Borenore Store, AU	daily rain	31.8 mm (1.3 in)	21.4 mm (0.8 in)	12 years	36 of 100 (Notable)
15 September 1971	Voroncovka, RU	daily rain	34.1 mm (1.3 in)	14.9 mm (0.6 in)	13 years	36 of 100 (Notable)
15 September 1971	Sable Island, CA	daily rain	37.6 mm (1.5 in)	20.8 mm (0.8 in)	36 years	35 of 100 (Notable)
15 September 1971	Nordby (Fano), DK	daily low min	2.1 C (35.8 F)	0.4 C (0.7 F)	81 years	34 of 100 (Routine)
15 September 1971	Crockett, US	all-time high max	41.7 C (107.1 F)	0.6 C (1.1 F)	27 years	34 of 100 (Routine)
15 September 1971	Woodland 1 WNW, US	monthly high min	26.1 C (79.0 F)	2.2 C (4.0 F)	37 years	34 of 100 (Routine)
15 September 1971	Paradis 7 S, US	daily rain	90.2 mm (3.6 in)	40.7 mm (1.6 in)	42 years	34 of 100 (Routine)
15 September 1971	Spalding (Bundaleer Reservoir), AU	daily rain	26.9 mm (1.1 in)	9.6 mm (0.38 in)	38 years	33 of 100 (Routine)

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 1971

Records set or tied on this calendar date in each year from 1797 to 1971. 1971 had 598 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 1971-09-15: 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	431
10 to 20	31
20 to 30	9
30 to 40	1
40 to 50	2