Weather Records on 21 September 1930

82 weather records were set or tied worldwide on 21 September 1930. Highest significance: Camden 3 W, US.

Key Facts for 21 September 1930

On 21 September 1930, 82 weather records were set or tied at long-record stations worldwide.
46 were record highs and 9 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 82 daily.
Camden 3 W set a daily record precipitation of 78.0 mm (3.1 in) on 21 September 1930.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 453 records.

Record Map

82 stations

82 station records on 21 September 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Camden 3 W	United States	Record daily precipitation	78.0 mm (3.1 in)	43 of 100 (Notable)
Godegard	Sweden	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Darlington	United States	Record daily precipitation	61.7 mm (2.4 in)	26 of 100 (Routine)
Kaisersbach-Cronhutte	Germany	Record daily precipitation	34.2 mm (1.3 in)	25 of 100 (Routine)
Monticello	United States	Record daily precipitation	46.0 mm (1.8 in)	25 of 100 (Routine)
Melbourne Regional Office	Australia	Record high maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
Millen 4 N	United States	Record daily precipitation	55.9 mm (2.2 in)	23 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	29.4 C (84.9 F)	22 of 100 (Routine)
Blackville 3 W	United States	Record daily precipitation	39.4 mm (1.6 in)	22 of 100 (Routine)
Delegate River	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Winterswijk	Netherlands	Record daily precipitation	16.4 mm (0.6 in)	20 of 100 (Routine)
Montagu (Pol)	South Africa	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Varberg	Sweden	Record daily precipitation	20.4 mm (0.8 in)	20 of 100 (Routine)
Perth Regional Office	Australia	Record daily precipitation	18.5 mm (0.7 in)	18 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record high maximum temperature	21.9 C (71.4 F)	18 of 100 (Routine)
Battle Mtn	United States	Record daily precipitation	2.8 mm (0.11 in)	17 of 100 (Routine)
Florence #1	United States	Record daily precipitation	48.3 mm (1.9 in)	17 of 100 (Routine)
Bancroft	Canada	Record high minimum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Kazan	Russia	Record low minimum temperature	-1.8 C (28.8 F)	16 of 100 (Routine)
Colfax	United States	Record high minimum temperature	11.7 C (53.1 F)	16 of 100 (Routine)
El Paso	United States	Record high maximum temperature	35.6 C (96.1 F)	16 of 100 (Routine)
Den Helder-1	Netherlands	Record daily precipitation	24.2 mm (1.0 in)	14 of 100 (Routine)
Elatma	Russia	Record low minimum temperature	-1.8 C (28.8 F)	14 of 100 (Routine)
Rio Vista	United States	Record daily precipitation	1.0 mm (0.04 in)	14 of 100 (Routine)
Lakeview 2 NNW	United States	Record high minimum temperature	13.9 C (57.0 F)	14 of 100 (Routine)
Manti	United States	Record high minimum temperature	12.8 C (55.0 F)	14 of 100 (Routine)
Ingham Post Office	Australia	Record daily precipitation	12.2 mm (0.5 in)	13 of 100 (Routine)
Kon-Kolodez	Russia	Record low minimum temperature	-2.0 C (28.4 F)	13 of 100 (Routine)
Milledgeville	United States	Record daily precipitation	35.8 mm (1.4 in)	13 of 100 (Routine)
Durham	United States	Record high minimum temperature	18.9 C (66.0 F)	13 of 100 (Routine)
Nicosia	Cyprus	Record daily precipitation	4.3 mm (0.17 in)	11 of 100 (Routine)
Albion	United States	Record high maximum temperature	30.0 C (86.0 F)	11 of 100 (Routine)
Jefferson 3SE	United States	Record high maximum temperature	37.2 C (99.0 F)	11 of 100 (Routine)
Clemson UNIV	United States	Record high minimum temperature	21.1 C (70.0 F)	11 of 100 (Routine)
Ulricehamn	Sweden	Record high minimum temperature	10.0 C (50.0 F)	10 of 100 (Routine)
Bridgeport 5 NW	United States	Record daily precipitation	17.3 mm (0.7 in)	10 of 100 (Routine)
Elsinore	United States	Record low minimum temperature	5.6 C (42.1 F)	10 of 100 (Routine)
Alamogordo 1	United States	Record high maximum temperature	34.4 C (93.9 F)	10 of 100 (Routine)
Southport 5 N	United States	Record daily precipitation	36.8 mm (1.4 in)	10 of 100 (Routine)
Mc Minnville	United States	Record high maximum temperature	33.9 C (93.0 F)	10 of 100 (Routine)
New Braunfels	United States	Record high maximum temperature	36.1 C (97.0 F)	10 of 100 (Routine)
Wenatchee 6 SW	United States	Record high minimum temperature	15.0 C (59.0 F)	10 of 100 (Routine)
Rockwell City	United States	Record high maximum temperature	31.1 C (88.0 F)	9 of 100 (Routine)
Effingham	United States	Record daily precipitation	27.9 mm (1.1 in)	9 of 100 (Routine)
Lemon Cove	United States	Record low maximum temperature	22.8 C (73.0 F)	8 of 100 (Routine)
Lawrence	United States	Record daily precipitation	23.9 mm (0.9 in)	8 of 100 (Routine)
Louisiana Starks Nurse	United States	Record high minimum temperature	21.1 C (70.0 F)	8 of 100 (Routine)
Bizerte Cap Blanc	Tunisia	Record high minimum temperature	24.0 C (75.2 F)	7 of 100 (Routine)
Ukiah	United States	Record high minimum temperature	14.4 C (57.9 F)	7 of 100 (Routine)
Fernandina Beach	United States	Record daily precipitation	11.7 mm (0.5 in)	7 of 100 (Routine)
Nanaimo	Canada	Record high minimum temperature	14.4 C (57.9 F)	6 of 100 (Routine)
Ostrov Sosnovez	Russia	Record low minimum temperature	-0.9 C (30.4 F)	6 of 100 (Routine)
Resaca	United States	Record daily precipitation	3.6 mm (0.14 in)	6 of 100 (Routine)
The Dalles	United States	Record high maximum temperature	31.7 C (89.1 F)	6 of 100 (Routine)
Greenwood	United States	Record daily precipitation	30.5 mm (1.2 in)	6 of 100 (Routine)
Deseret	United States	Record high minimum temperature	12.8 C (55.0 F)	6 of 100 (Routine)
Bisbee	United States	Record high maximum temperature	35.0 C (95.0 F)	5 of 100 (Routine)
Oracle	United States	Record high maximum temperature	35.6 C (96.1 F)	5 of 100 (Routine)
Needles	United States	Record high minimum temperature	26.7 C (80.1 F)	5 of 100 (Routine)
Paragonah	United States	Record high minimum temperature	12.8 C (55.0 F)	5 of 100 (Routine)

Counts by Type and Timescale

82 records

Records set or tied on 21 September 1930 by type: Highest daily maximum 25, Lowest daily maximum 2, Highest daily minimum 21, Lowest daily minimum 7, Heaviest daily rainfall 27.

Records on 21 September 1930 by type
Record type	Records
Highest daily maximum	25
Lowest daily maximum	2
Highest daily minimum	21
Lowest daily minimum	7
Heaviest daily rainfall	27
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1930 by timescale: all-time 0, monthly 0, daily 82.

How Much Records Were Beaten By

62 broken records

Margins by which the 62 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 41.9. Ties are not counted.

Top 20 by Significance

21 September 1930

Top 20 records on 21 September 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1930	Camden 3 W, US	daily rain	78.0 mm (3.1 in)	31.0 mm (1.2 in)	73 years	43 of 100 (Notable)
21 September 1930	Godegard, SE	daily rain	26.4 mm (1.0 in)	14.3 mm (0.6 in)	38 years	38 of 100 (Notable)
21 September 1930	Darlington, US	daily rain	61.7 mm (2.4 in)	38.1 mm (1.5 in)	31 years	26 of 100 (Routine)
21 September 1930	Kaisersbach-Cronhutte, DE	daily rain	34.2 mm (1.3 in)	12.2 mm (0.5 in)	24 years	25 of 100 (Routine)
21 September 1930	Monticello, US	daily rain	46.0 mm (1.8 in)	30.8 mm (1.2 in)	4 years	25 of 100 (Routine)
21 September 1930	Melbourne Regional Office, AU	daily high max	26.1 C (79.0 F)	0.9 C (1.6 F)	47 years	23 of 100 (Routine)
21 September 1930	Millen 4 N, US	daily rain	55.9 mm (2.2 in)	41.9 mm (1.6 in)	12 years	23 of 100 (Routine)
21 September 1930	Port Lincoln, AU	daily high max	29.4 C (84.9 F)	3.8 C (6.8 F)	30 years	22 of 100 (Routine)
21 September 1930	Blackville 3 W, US	daily rain	39.4 mm (1.6 in)	31.8 mm (1.3 in)	12 years	22 of 100 (Routine)
21 September 1930	Delegate River, AU	daily rain	21.3 mm (0.8 in)	11.9 mm (0.5 in)	21 years	20 of 100 (Routine)
21 September 1930	Winterswijk, NL	daily rain	16.4 mm (0.6 in)	1.9 mm (0.07 in)	49 years	20 of 100 (Routine)
21 September 1930	Montagu (Pol), ZA	daily rain	6.6 mm (0.26 in)	3.8 mm (0.15 in)	45 years	20 of 100 (Routine)
21 September 1930	Varberg, SE	daily rain	20.4 mm (0.8 in)	9.9 mm (0.39 in)	3 years	20 of 100 (Routine)
21 September 1930	Perth Regional Office, AU	daily rain	18.5 mm (0.7 in)	1.2 mm (0.05 in)	41 years	18 of 100 (Routine)
21 September 1930	Hobart (Ellerslie Road), AU	daily high max	21.9 C (71.4 F)	1.3 C (2.3 F)	36 years	18 of 100 (Routine)
21 September 1930	Battle Mtn, US	daily rain	2.8 mm (0.11 in)	2.8 mm (0.11 in)	36 years	17 of 100 (Routine)
21 September 1930	Florence #1, US	daily rain	48.3 mm (1.9 in)	19.1 mm (0.8 in)	24 years	17 of 100 (Routine)
21 September 1930	Bancroft, CA	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	38 years	16 of 100 (Routine)
21 September 1930	Kazan, RU	daily low min	-1.8 C (28.8 F)	0.6 C (1.1 F)	39 years	16 of 100 (Routine)
21 September 1930	Colfax, US	daily high min	11.7 C (53.1 F)	1.7 C (3.1 F)	31 years	16 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

1805 to 1930

Records set or tied on this calendar date in each year from 1805 to 1930. 1930 had 82 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 1930-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Histogram of margins by which records were beaten on 21 September 1930
Margin	Records
0 to 10	52
10 to 20	5
20 to 30	0
30 to 40	4
40 to 50	1