Weather Records on 27 September 1971

762 weather records were set or tied worldwide on 27 September 1971. Highest significance: Dosang, RU.

Key Facts for 27 September 1971

On 27 September 1971, 762 weather records were set or tied at long-record stations worldwide.
318 were record highs and 219 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 17 monthly and 742 daily.
Dosang set an all-time record daily precipitation of 72.6 mm (2.9 in) on 27 September 1971.
Across 154 earlier years (1799 to 2026) the same calendar date averaged 449 records.

Record Map

762 stations

762 station records on 27 September 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 September 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dosang	Russia	Record daily precipitation	72.6 mm (2.9 in)	67 of 100 (Major)
Astrakan	Russia	Record daily precipitation	58.2 mm (2.3 in)	61 of 100 (Major)
Tierra Blanca (Smn)	Mexico	Record daily precipitation	199.9 mm (7.9 in)	59 of 100 (Notable)
Southport	Australia	Record daily precipitation	51.3 mm (2.0 in)	58 of 100 (Notable)
Kosch-Agach	Russia	Record daily precipitation	30.4 mm (1.2 in)	57 of 100 (Notable)
Grand Haven Fire Dept	United States	Record daily precipitation	91.4 mm (3.6 in)	56 of 100 (Notable)
Fremont	United States	Record daily precipitation	80.0 mm (3.1 in)	50 of 100 (Notable)
Irishtown	Australia	Record daily precipitation	39.1 mm (1.5 in)	48 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	25.9 mm (1.0 in)	47 of 100 (Notable)
Lady Barron (Franklin Parade)	Australia	Record daily precipitation	27.4 mm (1.1 in)	47 of 100 (Notable)
Pommelsbrunn	Germany	Record daily precipitation	38.3 mm (1.5 in)	47 of 100 (Notable)
Warburton (O'Shannassy Reservo	Australia	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Forest (van Diemans Land Compa	Australia	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Moorina (Frome Dam)	Australia	Record daily precipitation	45.0 mm (1.8 in)	45 of 100 (Notable)
Ann Arbor U of Mich	United States	Record daily precipitation	100.1 mm (3.9 in)	45 of 100 (Notable)
Green Bay	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Hickory Flat	United States	Record daily precipitation	96.5 mm (3.8 in)	43 of 100 (Notable)
Brisbane Regional Office	Australia	Record high minimum temperature	20.5 C (68.9 F)	42 of 100 (Notable)
Smithton (Grant Street)	Australia	Record daily precipitation	33.5 mm (1.3 in)	42 of 100 (Notable)
Poncitlan	Mexico	Record daily precipitation	52.8 mm (2.1 in)	42 of 100 (Notable)
Eichstatt-Landershofen	Germany	Record daily precipitation	27.1 mm (1.1 in)	41 of 100 (Notable)
Bolivar Wtr Wks	United States	Record daily precipitation	91.4 mm (3.6 in)	41 of 100 (Notable)
Bolton	United States	Record daily precipitation	58.4 mm (2.3 in)	38 of 100 (Notable)
Jamieson	Australia	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Schreiber	Canada	Record daily precipitation	48.8 mm (1.9 in)	37 of 100 (Notable)
Allegan 5NE	United States	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
Ringarooma (Charles Street)	Australia	Record daily precipitation	38.6 mm (1.5 in)	33 of 100 (Routine)
Lussanvira	Brazil	Record daily precipitation	37.4 mm (1.5 in)	33 of 100 (Routine)
Arnhem	Netherlands	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Frankfort Downtown	United States	Record daily precipitation	36.1 mm (1.4 in)	33 of 100 (Routine)
Carrollton	United States	Record high minimum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Schwabisch Hall-Bibersfeld	Germany	Record daily precipitation	27.8 mm (1.1 in)	32 of 100 (Routine)
Quincy	United States	Record high minimum temperature	21.1 C (70.0 F)	32 of 100 (Routine)
Lawrence	United States	Record high minimum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Snoqualmie Falls	United States	Record low maximum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Gravette	United States	Record high minimum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Knoxville	United States	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Maquoketa	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Oskaloosa	United States	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Osage City	United States	Record high minimum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Charlotte	United States	Record daily precipitation	52.6 mm (2.1 in)	31 of 100 (Routine)
Montevideo 1SW	United States	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Two Harbors	United States	Record high minimum temperature	12.2 C (54.0 F)	31 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record low maximum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Appleton	United States	Record daily precipitation	28.4 mm (1.1 in)	31 of 100 (Routine)
Calaveras Big Trees	United States	Record low maximum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Aledo	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Ottawa 4SW	United States	Record high minimum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Valparaiso Wtr Wks	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Glenwood 3SW	United States	Record high minimum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Greenfield	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Abilene	United States	Record high minimum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Ft Scott	United States	Record high minimum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
Yates Ctr	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Cerro	United States	Record high minimum temperature	10.6 C (51.1 F)	30 of 100 (Routine)
Upper Stewiacke	Canada	Record low minimum temperature	-7.2 C (19.0 F)	29 of 100 (Routine)
Sierraville Rs	United States	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Atlantic 1 NE	United States	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Cedar Rapids #1	United States	Record high minimum temperature	18.9 C (66.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

762 records

Records set or tied on 27 September 1971 by type: Highest daily maximum 36, Lowest daily maximum 157, Highest daily minimum 282, Lowest daily minimum 62, Heaviest daily rainfall 218, Heaviest daily snowfall 5, Deepest snow cover 2.

Records on 27 September 1971 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	157
Highest daily minimum	282
Lowest daily minimum	62
Heaviest daily rainfall	218
Heaviest daily snowfall	5
Deepest snow cover	2

Records on 27 September 1971 by timescale: all-time 3, monthly 17, daily 742.

How Much Records Were Beaten By

575 broken records

Margins by which the 575 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 166.6. Ties are not counted.

Top 20 by Significance

27 September 1971

Top 20 records on 27 September 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 1971	Dosang, RU	all-time rain	72.6 mm (2.9 in)	29.0 mm (1.1 in)	15 years	67 of 100 (Major)
27 September 1971	Astrakan, RU	daily rain	58.2 mm (2.3 in)	52.0 mm (2.0 in)	42 years	61 of 100 (Major)
27 September 1971	Tierra Blanca (Smn), MX	daily rain	199.9 mm (7.9 in)	166.6 mm (6.6 in)	46 years	59 of 100 (Notable)
27 September 1971	Southport, AU	daily rain	51.3 mm (2.0 in)	36.1 mm (1.4 in)	36 years	58 of 100 (Notable)
27 September 1971	Kosch-Agach, RU	all-time rain	30.4 mm (1.2 in)	6.9 mm (0.27 in)	37 years	57 of 100 (Notable)
27 September 1971	Grand Haven Fire Dept, US	daily rain	91.4 mm (3.6 in)	60.4 mm (2.4 in)	34 years	56 of 100 (Notable)
27 September 1971	Fremont, US	daily rain	80.0 mm (3.1 in)	38.9 mm (1.5 in)	37 years	50 of 100 (Notable)
27 September 1971	Irishtown, AU	daily rain	39.1 mm (1.5 in)	19.0 mm (0.7 in)	48 years	48 of 100 (Notable)
27 September 1971	Kellevie, AU	daily rain	25.9 mm (1.0 in)	15.7 mm (0.6 in)	60 years	47 of 100 (Notable)
27 September 1971	Lady Barron (Franklin Parade), AU	daily rain	27.4 mm (1.1 in)	19.0 mm (0.7 in)	48 years	47 of 100 (Notable)
27 September 1971	Pommelsbrunn, DE	daily rain	38.3 mm (1.5 in)	14.7 mm (0.6 in)	52 years	47 of 100 (Notable)
27 September 1971	Warburton (O'Shannassy Reservo, AU	daily rain	45.7 mm (1.8 in)	24.1 mm (0.9 in)	56 years	46 of 100 (Notable)
27 September 1971	Forest (van Diemans Land Compa, AU	daily rain	33.5 mm (1.3 in)	22.1 mm (0.9 in)	25 years	46 of 100 (Notable)
27 September 1971	Moorina (Frome Dam), AU	daily rain	45.0 mm (1.8 in)	21.6 mm (0.9 in)	46 years	45 of 100 (Notable)
27 September 1971	Ann Arbor U of Mich, US	all-time rain	100.1 mm (3.9 in)	16.5 mm (0.6 in)	3 years	45 of 100 (Notable)
27 September 1971	Green Bay, US	daily rain	34.3 mm (1.4 in)	19.6 mm (0.8 in)	62 years	44 of 100 (Notable)
27 September 1971	Hickory Flat, US	daily rain	96.5 mm (3.8 in)	64.7 mm (2.5 in)	10 years	43 of 100 (Notable)
27 September 1971	Brisbane Regional Office, AU	monthly high min	20.5 C (68.9 F)	0.8 C (1.4 F)	70 years	42 of 100 (Notable)
27 September 1971	Smithton (Grant Street), AU	daily rain	33.5 mm (1.3 in)	13.9 mm (0.5 in)	48 years	42 of 100 (Notable)
27 September 1971	Poncitlan, MX	daily rain	52.8 mm (2.1 in)	32.0 mm (1.3 in)	28 years	42 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

1799 to 1971

Records set or tied on this calendar date in each year from 1799 to 1971. 1971 had 762 records.

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

Records on 09-27 in each year
Year	Records
1799	1
1828	1
1836	2
1847	1
1851	1
1854	2
1855	2
1859	2
1866	2
1867	3
1874	1
1875	1
1877	2
1880	1
1881	4
1882	1
1885	5
1887	1
1890	3
1891	1
1892	1
1893	1
1894	5
1895	6
1896	1
1897	2
1898	4
1899	1
1900	5
1901	3
1902	12
1903	7
1904	12
1905	21
1906	21
1907	9
1908	36
1909	17
1910	20
1911	31
1912	25
1913	27
1914	24
1915	80
1916	57
1917	41
1918	58
1919	45
1920	54
1921	26
1922	111
1923	125
1924	115
1925	129
1926	581
1927	244
1928	288
1929	225
1930	178
1931	222
1932	194
1933	559
1934	298
1935	319
1936	435
1937	309
1938	366
1939	572
1940	706
1941	257
1942	1,353
1943	503
1944	323
1945	475
1946	387
1947	813
1948	405
1949	407
1950	223
1951	480
1952	539
1953	567
1954	507
1955	386
1956	825
1957	644
1958	585
1959	582
1960	337
1961	376
1962	352
1963	849
1964	724
1965	688
1966	426
1967	502
1968	286
1969	233
1970	773
1971	762
1972	989
1973	1,031
1974	408
1975	790
1976	905
1977	852
1978	773
1979	741
1980	559
1981	680
1982	1,076
1983	791
1984	1,297
1985	661
1986	1,772
1987	1,013
1988	494
1989	852
1990	379
1991	894
1992	659
1993	727
1994	764
1995	698
1996	1,468
1997	730
1998	1,774
1999	1,059
2000	1,031
2001	980
2002	992
2003	830
2004	665
2005	1,061
2006	596
2007	1,091
2008	659
2009	987
2010	1,153
2011	965
2012	624
2013	823
2014	813
2015	664
2016	600
2017	891
2018	600
2019	755
2020	659
2021	893
2022	642
2023	747
2024	1,449
2025	272
2026	358

Download the Data

Data for records on 1971-09-27: 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 25	560
25 to 50	9
50 to 75	4
75 to 100	1
100 to 125	0
125 to 150	0
150 to 175	1