Weather Records on 30 September 1927

486 weather records were set or tied worldwide on 30 September 1927. Highest significance: Bulgandramine, AU.

Key Facts for 30 September 1927

On 30 September 1927, 486 weather records were set or tied at long-record stations worldwide.
203 were record highs and 23 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 477 daily.
Bulgandramine set a daily record precipitation of 44.7 mm (1.8 in) on 30 September 1927.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 439 records.

Record Map

486 stations

486 station records on 30 September 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bulgandramine	Australia	Record daily precipitation	44.7 mm (1.8 in)	54 of 100 (Notable)
Carabost	Australia	Record daily precipitation	49.3 mm (1.9 in)	50 of 100 (Notable)
Mt Carmel	United States	Record daily precipitation	101.9 mm (4.0 in)	48 of 100 (Notable)
New Burnside	United States	Record daily precipitation	73.7 mm (2.9 in)	48 of 100 (Notable)
Evansville Ft Court STN	United States	Record daily precipitation	68.8 mm (2.7 in)	46 of 100 (Notable)
Benerembah	Australia	Record daily precipitation	30.2 mm (1.2 in)	45 of 100 (Notable)
Cairo River	United States	Record daily precipitation	94.5 mm (3.7 in)	45 of 100 (Notable)
Burlington	United States	Record daily precipitation	101.6 mm (4.0 in)	44 of 100 (Notable)
Paducah River	United States	Record daily precipitation	67.3 mm (2.6 in)	41 of 100 (Notable)
Booligal (Belmont)	Australia	Record daily precipitation	50.3 mm (2.0 in)	40 of 100 (Notable)
Decatur Wtp	United States	Record daily precipitation	58.7 mm (2.3 in)	36 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	67.1 mm (2.6 in)	35 of 100 (Notable)
Moose Factory	Canada	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Mt Vernon	United States	Record daily precipitation	45.7 mm (1.8 in)	33 of 100 (Routine)
Whroo	Australia	Record daily precipitation	29.5 mm (1.2 in)	31 of 100 (Routine)
S Bend AP	United States	Record daily precipitation	41.7 mm (1.6 in)	31 of 100 (Routine)
Argoon	Australia	Record daily precipitation	42.9 mm (1.7 in)	30 of 100 (Routine)
Jefferson City Wtp	United States	Record daily precipitation	52.1 mm (2.1 in)	30 of 100 (Routine)
Yalgogrin North (Roloma)	Australia	Record daily precipitation	26.7 mm (1.1 in)	25 of 100 (Routine)
Avon	United States	Record high minimum temperature	21.1 C (70.0 F)	24 of 100 (Routine)
Palmwoods Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Burra Burra	Australia	Record daily precipitation	25.7 mm (1.0 in)	23 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Haliburton A	Canada	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Vincennes 4 E	United States	Record daily precipitation	85.1 mm (3.4 in)	23 of 100 (Routine)
Fayette	United States	Record daily precipitation	63.5 mm (2.5 in)	22 of 100 (Routine)
Rolla Missouri S&T	United States	Record daily precipitation	46.7 mm (1.8 in)	22 of 100 (Routine)
Tooele	United States	Record low maximum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Richmond	United States	Record high minimum temperature	24.4 C (75.9 F)	21 of 100 (Routine)
Springfield 3	Australia	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Enisejsk	Russia	Record daily precipitation	18.9 mm (0.7 in)	20 of 100 (Routine)
Jerilderie (Coree STN)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Whitton (Conapaira St)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Groongal (Groongal Station)	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Lambrigg	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Carrathool Motors	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Bolagamy	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Burra (Poonunda)	Australia	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Blyth	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Robe Comparison	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Conargo (Willurah)	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Narromine (Alagala Old)	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Hallett	Australia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Morgan Post Office	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Hawker (Warcowie)	Australia	Record daily precipitation	4.3 mm (0.17 in)	20 of 100 (Routine)
Pine Hills	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Barmah East	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Hamley Bridge	Australia	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Yarroweyah	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Alexandra (Post Office)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Port Pirie Nyrstar Comparison	Australia	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Blinkbonnie	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Mossgiel (Moolbong)	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Wandearah North	Australia	Record daily precipitation	6.1 mm (0.24 in)	20 of 100 (Routine)
Magill Post Office	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Stockport	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Grandchester Symes St	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Wilkie	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Mossgiel (Boondara)	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)

Counts by Type and Timescale

486 records

Records set or tied on 30 September 1927 by type: Highest daily maximum 42, Lowest daily maximum 19, Highest daily minimum 161, Lowest daily minimum 4, Heaviest daily rainfall 260.

Records on 30 September 1927 by type
Record type	Records
Highest daily maximum	42
Lowest daily maximum	19
Highest daily minimum	161
Lowest daily minimum	4
Heaviest daily rainfall	260
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 September 1927 by timescale: all-time 0, monthly 9, daily 477.

How Much Records Were Beaten By

409 broken records

Margins by which the 409 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 84.8. Ties are not counted.

Top 20 by Significance

30 September 1927

Top 20 records on 30 September 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1927	Bulgandramine, AU	daily rain	44.7 mm (1.8 in)	39.6 mm (1.6 in)	34 years	54 of 100 (Notable)
30 September 1927	Carabost, AU	daily rain	49.3 mm (1.9 in)	29.0 mm (1.1 in)	36 years	50 of 100 (Notable)
30 September 1927	Mt Carmel, US	monthly rain	101.9 mm (4.0 in)	37.9 mm (1.5 in)	15 years	48 of 100 (Notable)
30 September 1927	New Burnside, US	daily rain	73.7 mm (2.9 in)	50.3 mm (2.0 in)	28 years	48 of 100 (Notable)
30 September 1927	Evansville Ft Court STN, US	daily rain	68.8 mm (2.7 in)	53.8 mm (2.1 in)	21 years	46 of 100 (Notable)
30 September 1927	Benerembah, AU	daily rain	30.2 mm (1.2 in)	23.8 mm (0.9 in)	10 years	45 of 100 (Notable)
30 September 1927	Cairo River, US	monthly rain	94.5 mm (3.7 in)	25.9 mm (1.0 in)	34 years	45 of 100 (Notable)
30 September 1927	Burlington, US	daily rain	101.6 mm (4.0 in)	84.8 mm (3.3 in)	16 years	44 of 100 (Notable)
30 September 1927	Paducah River, US	daily rain	67.3 mm (2.6 in)	38.9 mm (1.5 in)	28 years	41 of 100 (Notable)
30 September 1927	Booligal (Belmont), AU	monthly rain	50.3 mm (2.0 in)	13.2 mm (0.5 in)	11 years	40 of 100 (Notable)
30 September 1927	Decatur Wtp, US	daily rain	58.7 mm (2.3 in)	38.6 mm (1.5 in)	30 years	36 of 100 (Notable)
30 September 1927	Hopkinsville, US	daily rain	67.1 mm (2.6 in)	29.5 mm (1.2 in)	28 years	35 of 100 (Notable)
30 September 1927	Moose Factory, CA	daily rain	38.1 mm (1.5 in)	16.5 mm (0.6 in)	22 years	33 of 100 (Routine)
30 September 1927	Mt Vernon, US	daily rain	45.7 mm (1.8 in)	33.0 mm (1.3 in)	21 years	33 of 100 (Routine)
30 September 1927	Whroo, AU	daily rain	29.5 mm (1.2 in)	15.3 mm (0.6 in)	36 years	31 of 100 (Routine)
30 September 1927	S Bend AP, US	daily rain	41.7 mm (1.6 in)	20.1 mm (0.8 in)	30 years	31 of 100 (Routine)
30 September 1927	Argoon, AU	monthly rain	42.9 mm (1.7 in)	5.1 mm (0.20 in)	36 years	30 of 100 (Routine)
30 September 1927	Jefferson City Wtp, US	daily rain	52.1 mm (2.1 in)	40.7 mm (1.6 in)	0 years	30 of 100 (Routine)
30 September 1927	Yalgogrin North (Roloma), AU	daily rain	26.7 mm (1.1 in)	16.0 mm (0.6 in)	0 years	25 of 100 (Routine)
30 September 1927	Avon, US	daily high min	21.1 C (70.0 F)	7.2 C (13.0 F)	24 years	24 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

1806 to 1927

Records set or tied on this calendar date in each year from 1806 to 1927. 1927 had 486 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	523

Download the Data

Data for records on 1927-09-30: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	391
20 to 40	14
40 to 60	3
60 to 80	0
80 to 100	1