Weather Records on 1 September 1971

464 weather records were set or tied worldwide on 1 September 1971. Highest significance: Phillipsburg 1 SSE, US.

Key Facts for 1 September 1971

On 1 September 1971, 464 weather records were set or tied at long-record stations worldwide.
76 were record highs and 181 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 444 daily.
Phillipsburg 1 SSE set a daily record precipitation of 122.7 mm (4.8 in) on 1 September 1971.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 441 records.

Record Map

464 stations

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

Weather records on 1 September 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Phillipsburg 1 SSE	United States	Record daily precipitation	122.7 mm (4.8 in)	58 of 100 (Notable)
Cherry Grove 2 S	United States	Record daily precipitation	34.8 mm (1.4 in)	51 of 100 (Notable)
Willamina	United States	Record daily precipitation	29.2 mm (1.1 in)	51 of 100 (Notable)
Densmore 2N	United States	Record daily precipitation	66.0 mm (2.6 in)	48 of 100 (Notable)
Corinth 5 WSW	United States	Record daily precipitation	71.6 mm (2.8 in)	48 of 100 (Notable)
Cachoeiro Itapemiri	Brazil	Record daily precipitation	47.2 mm (1.9 in)	43 of 100 (Notable)
Bickleton	United States	Record daily precipitation	27.2 mm (1.1 in)	43 of 100 (Notable)
Canton 4N	United States	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Concord	United States	Record daily precipitation	54.6 mm (2.1 in)	40 of 100 (Notable)
Timber	United States	Record daily precipitation	29.5 mm (1.2 in)	40 of 100 (Notable)
Whitesand Dam	Canada	Record daily precipitation	41.7 mm (1.6 in)	38 of 100 (Notable)
Zacatecas (Smn)	Mexico	Record low maximum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Fort Vermilion Cda	Canada	Record daily precipitation	40.4 mm (1.6 in)	37 of 100 (Notable)
Elrod	United States	Record daily precipitation	55.9 mm (2.2 in)	37 of 100 (Notable)
Corvallis	United States	Record daily precipitation	32.5 mm (1.3 in)	37 of 100 (Notable)
Waterloo	United States	Record daily precipitation	42.7 mm (1.7 in)	37 of 100 (Notable)
Thurlow Dam	United States	Record daily precipitation	50.3 mm (2.0 in)	36 of 100 (Notable)
Portland Rfc City	United States	Record daily precipitation	38.6 mm (1.5 in)	36 of 100 (Notable)
Oni	Georgia	Record daily precipitation	49.0 mm (1.9 in)	35 of 100 (Notable)
Greer	United States	Record daily precipitation	36.6 mm (1.4 in)	35 of 100 (Notable)
Poplar 2 E	United States	Record high minimum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Naselle 2 ENE	United States	Record daily precipitation	54.4 mm (2.1 in)	35 of 100 (Notable)
Summit	United States	Record daily precipitation	34.3 mm (1.4 in)	34 of 100 (Routine)
Olympia AP	United States	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Conceicao da Barra	Brazil	Record daily precipitation	160.6 mm (6.3 in)	32 of 100 (Routine)
Kelvin	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Homestead Exp STN	United States	Record low maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Elberton 2 N	United States	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Waynesboro 2 S	United States	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Detroit	United States	Record daily precipitation	58.4 mm (2.3 in)	32 of 100 (Routine)
Mc Minnville	United States	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Ellensburg	United States	Record low maximum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Orlando Executive AP	United States	Record high minimum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Spokane Intl AP	United States	Record low maximum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Irapuato	Mexico	Record daily precipitation	64.8 mm (2.6 in)	31 of 100 (Routine)
Shenkursk	Russia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Cartersville #2	United States	Record daily precipitation	58.4 mm (2.3 in)	31 of 100 (Routine)
Oregon City	United States	Record daily precipitation	33.3 mm (1.3 in)	31 of 100 (Routine)
Valsetz	United States	Record daily precipitation	73.4 mm (2.9 in)	31 of 100 (Routine)
Sunnyside	United States	Record low maximum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Plymouth-Kingston	United States	Record low minimum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Lacrosse	United States	Record low maximum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Winthrop 1 WSW	United States	Record low maximum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Portland Intl AP	United States	Record daily precipitation	37.6 mm (1.5 in)	29 of 100 (Routine)
Ahuacatlan	Mexico	Record low maximum temperature	22.8 C (73.0 F)	28 of 100 (Routine)
Booneville	United States	Record daily precipitation	26.4 mm (1.0 in)	28 of 100 (Routine)
Waynesboro 2 W	United States	Record daily precipitation	31.0 mm (1.2 in)	28 of 100 (Routine)
Malta	United States	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Estacada 2 SE	United States	Record daily precipitation	31.2 mm (1.2 in)	28 of 100 (Routine)
Holley	United States	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Saanichton Cda	Canada	Record low maximum temperature	12.8 C (55.0 F)	27 of 100 (Routine)
Thomasville	United States	Record daily precipitation	53.3 mm (2.1 in)	27 of 100 (Routine)
Priest Rvr Exp STN	United States	Record low maximum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Nanaimo Departure Bay	Canada	Record low maximum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Ust-Njukzha	Russia	Record daily precipitation	28.3 mm (1.1 in)	26 of 100 (Routine)
Florence	United States	Record daily precipitation	54.6 mm (2.1 in)	26 of 100 (Routine)
Selma	United States	Record daily precipitation	31.5 mm (1.2 in)	26 of 100 (Routine)
Brockport	United States	Record low minimum temperature	4.4 C (39.9 F)	26 of 100 (Routine)
Hatton 9 SE	United States	Record low maximum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Port Townsend	United States	Record low maximum temperature	14.4 C (57.9 F)	26 of 100 (Routine)

Counts by Type and Timescale

464 records

Records set or tied on 1 September 1971 by type: Highest daily maximum 23, Lowest daily maximum 114, Highest daily minimum 53, Lowest daily minimum 67, Heaviest daily rainfall 207.

Records on 1 September 1971 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	114
Highest daily minimum	53
Lowest daily minimum	67
Heaviest daily rainfall	207
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 September 1971 by timescale: all-time 0, monthly 20, daily 444.

How Much Records Were Beaten By

368 broken records

Margins by which the 368 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 64.3. Ties are not counted.

Top 20 by Significance

1 September 1971

Top 20 records on 1 September 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1971	Phillipsburg 1 SSE, US	daily rain	122.7 mm (4.8 in)	64.3 mm (2.5 in)	36 years	58 of 100 (Notable)
1 September 1971	Cherry Grove 2 S, US	daily rain	34.8 mm (1.4 in)	28.2 mm (1.1 in)	29 years	51 of 100 (Notable)
1 September 1971	Willamina, US	daily rain	29.2 mm (1.1 in)	24.1 mm (0.9 in)	29 years	51 of 100 (Notable)
1 September 1971	Densmore 2N, US	daily rain	66.0 mm (2.6 in)	51.8 mm (2.0 in)	18 years	48 of 100 (Notable)
1 September 1971	Corinth 5 WSW, US	daily rain	71.6 mm (2.8 in)	59.4 mm (2.3 in)	26 years	48 of 100 (Notable)
1 September 1971	Cachoeiro Itapemiri, BR	daily rain	47.2 mm (1.9 in)	39.1 mm (1.5 in)	0 years	43 of 100 (Notable)
1 September 1971	Bickleton, US	monthly rain	27.2 mm (1.1 in)	10.2 mm (0.4 in)	8 years	43 of 100 (Notable)
1 September 1971	Canton 4N, US	daily rain	26.7 mm (1.1 in)	16.8 mm (0.7 in)	73 years	41 of 100 (Notable)
1 September 1971	Concord, US	daily rain	54.6 mm (2.1 in)	35.8 mm (1.4 in)	42 years	40 of 100 (Notable)
1 September 1971	Timber, US	daily rain	29.5 mm (1.2 in)	21.9 mm (0.9 in)	29 years	40 of 100 (Notable)
1 September 1971	Whitesand Dam, CA	daily rain	41.7 mm (1.6 in)	21.4 mm (0.8 in)	13 years	38 of 100 (Notable)
1 September 1971	Zacatecas (Smn), MX	daily low max	17.8 C (64.0 F)	6.1 C (11.0 F)	41 years	38 of 100 (Notable)
1 September 1971	Fort Vermilion Cda, CA	monthly rain	40.4 mm (1.6 in)	9.9 mm (0.39 in)	7 years	37 of 100 (Notable)
1 September 1971	Elrod, US	daily rain	55.9 mm (2.2 in)	50.8 mm (2.0 in)	20 years	37 of 100 (Notable)
1 September 1971	Corvallis, US	daily rain	32.5 mm (1.3 in)	22.3 mm (0.9 in)	9 years	37 of 100 (Notable)
1 September 1971	Waterloo, US	daily rain	42.7 mm (1.7 in)	17.6 mm (0.7 in)	32 years	37 of 100 (Notable)
1 September 1971	Thurlow Dam, US	daily rain	50.3 mm (2.0 in)	41.9 mm (1.6 in)	33 years	36 of 100 (Notable)
1 September 1971	Portland Rfc City, US	daily rain	38.6 mm (1.5 in)	13.5 mm (0.5 in)	29 years	36 of 100 (Notable)
1 September 1971	Oni, GE	daily rain	49.0 mm (1.9 in)	30.4 mm (1.2 in)	2 years	35 of 100 (Notable)
1 September 1971	Greer, US	daily rain	36.6 mm (1.4 in)	11.5 mm (0.5 in)	45 years	35 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 1971

Records set or tied on this calendar date in each year from 1797 to 1971. 1971 had 464 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 1971-09-01: 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	293
10 to 20	47
20 to 30	17
30 to 40	5
40 to 50	2
50 to 60	3
60 to 70	1