Weather Records on 30 September 1990

665 weather records were set or tied worldwide on 30 September 1990. Highest significance: Mainz-Lerchenberg (Zdf), DE.

Key Facts for 30 September 1990

On 30 September 1990, 665 weather records were set or tied at long-record stations worldwide.
188 were record highs and 60 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 41 monthly and 624 daily.
Mainz-Lerchenberg (Zdf) set a daily record precipitation of 31.6 mm (1.2 in) on 30 September 1990.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 438 records.

Record Map

665 stations

665 station records on 30 September 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mainz-Lerchenberg (Zdf)	Germany	Record daily precipitation	31.6 mm (1.2 in)	68 of 100 (Major)
Sandbackshult	Sweden	Record daily precipitation	38.4 mm (1.5 in)	62 of 100 (Major)
Varberg	Sweden	Record daily precipitation	31.1 mm (1.2 in)	61 of 100 (Major)
Offenbach/M. (Stadt)	Germany	Record daily precipitation	58.9 mm (2.3 in)	57 of 100 (Notable)
Chisos Basin	United States	Record daily precipitation	66.0 mm (2.6 in)	57 of 100 (Notable)
Irako	Japan	Record daily precipitation	151.9 mm (6.0 in)	55 of 100 (Notable)
Ajiro	Japan	Record daily precipitation	174.0 mm (6.9 in)	55 of 100 (Notable)
Mahackala	Russia	Record daily precipitation	84.4 mm (3.3 in)	55 of 100 (Notable)
Vaexjoe	Sweden	Record daily precipitation	29.4 mm (1.2 in)	54 of 100 (Notable)
Halmstad	Sweden	Record daily precipitation	33.9 mm (1.3 in)	54 of 100 (Notable)
Hassleby	Sweden	Record daily precipitation	38.3 mm (1.5 in)	53 of 100 (Notable)
Huskvarna	Sweden	Record daily precipitation	37.3 mm (1.5 in)	53 of 100 (Notable)
Melsungen-Burstoss	Germany	Record daily precipitation	40.5 mm (1.6 in)	52 of 100 (Notable)
Yokohama	Japan	Record daily precipitation	184.9 mm (7.3 in)	52 of 100 (Notable)
Katsuura	Japan	Record daily precipitation	242.1 mm (9.5 in)	52 of 100 (Notable)
Bad Kissingen	Germany	Record daily precipitation	33.2 mm (1.3 in)	50 of 100 (Notable)
Jonkopings_Flygplats	Sweden	Record daily precipitation	34.2 mm (1.3 in)	50 of 100 (Notable)
Ohs	Sweden	Record daily precipitation	40.5 mm (1.6 in)	50 of 100 (Notable)
Rorvik_D	Sweden	Record daily precipitation	45.5 mm (1.8 in)	50 of 100 (Notable)
Oskarshamn	Sweden	Record daily precipitation	35.0 mm (1.4 in)	50 of 100 (Notable)
Kavsjo_D	Sweden	Record daily precipitation	42.6 mm (1.7 in)	50 of 100 (Notable)
Krokshult_D	Sweden	Record daily precipitation	36.3 mm (1.4 in)	50 of 100 (Notable)
Malilla	Sweden	Record daily precipitation	38.4 mm (1.5 in)	50 of 100 (Notable)
Hylletofta	Sweden	Record daily precipitation	42.1 mm (1.7 in)	50 of 100 (Notable)
Ungsberg	Sweden	Record daily precipitation	36.3 mm (1.4 in)	50 of 100 (Notable)
Ogestad	Sweden	Record daily precipitation	41.0 mm (1.6 in)	50 of 100 (Notable)
Lommaryd	Sweden	Record daily precipitation	35.5 mm (1.4 in)	50 of 100 (Notable)
Habo	Sweden	Record daily precipitation	38.0 mm (1.5 in)	50 of 100 (Notable)
Weilerswist-Lommersum	Germany	Record daily precipitation	35.9 mm (1.4 in)	49 of 100 (Notable)
Vastervik	Sweden	Record daily precipitation	37.5 mm (1.5 in)	49 of 100 (Notable)
Haggarda	Sweden	Record daily precipitation	35.2 mm (1.4 in)	48 of 100 (Notable)
Kofu	Japan	Record daily precipitation	102.1 mm (4.0 in)	47 of 100 (Notable)
Horda	Sweden	Record daily precipitation	39.5 mm (1.6 in)	47 of 100 (Notable)
Fagerhult_D	Sweden	Record daily precipitation	34.5 mm (1.4 in)	47 of 100 (Notable)
Nyabyberg	Sweden	Record daily precipitation	37.5 mm (1.5 in)	47 of 100 (Notable)
Paulistrom	Sweden	Record daily precipitation	39.6 mm (1.6 in)	47 of 100 (Notable)
Ramsjoholm	Sweden	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Overum	Sweden	Record daily precipitation	35.0 mm (1.4 in)	47 of 100 (Notable)
Falkoping	Sweden	Record daily precipitation	32.7 mm (1.3 in)	47 of 100 (Notable)
Siegen (Klaranlage)	Germany	Record daily precipitation	42.1 mm (1.7 in)	46 of 100 (Notable)
Bad Sooden-Allendorf	Germany	Record daily precipitation	28.6 mm (1.1 in)	46 of 100 (Notable)
Maebashi	Japan	Record daily precipitation	87.9 mm (3.5 in)	46 of 100 (Notable)
Navelsjo	Sweden	Record daily precipitation	45.1 mm (1.8 in)	46 of 100 (Notable)
Grebbeshult	Sweden	Record daily precipitation	38.5 mm (1.5 in)	46 of 100 (Notable)
Morko	Sweden	Record daily precipitation	37.8 mm (1.5 in)	46 of 100 (Notable)
Boras	Sweden	Record daily precipitation	35.8 mm (1.4 in)	46 of 100 (Notable)
Kissimmee 2	United States	Record daily precipitation	89.2 mm (3.5 in)	46 of 100 (Notable)
Kumagaya	Japan	Record daily precipitation	112.0 mm (4.4 in)	45 of 100 (Notable)
Tranas	Sweden	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Hogemalen	Sweden	Record daily precipitation	30.0 mm (1.2 in)	45 of 100 (Notable)
Biedenkopf	Germany	Record daily precipitation	31.6 mm (1.2 in)	44 of 100 (Notable)
Kawaguchiko	Japan	Record daily precipitation	174.0 mm (6.9 in)	44 of 100 (Notable)
Chichibu	Japan	Record daily precipitation	137.9 mm (5.4 in)	44 of 100 (Notable)
Bollebygd	Sweden	Record daily precipitation	33.6 mm (1.3 in)	44 of 100 (Notable)
Flahult	Sweden	Record daily precipitation	46.3 mm (1.8 in)	44 of 100 (Notable)
Malexander	Sweden	Record daily precipitation	33.7 mm (1.3 in)	44 of 100 (Notable)
Bad Konigshofen	Germany	Record daily precipitation	29.4 mm (1.2 in)	43 of 100 (Notable)
Rhein Main	Germany	Record daily precipitation	31.1 mm (1.2 in)	43 of 100 (Notable)
Simonstorp	Sweden	Record daily precipitation	31.2 mm (1.2 in)	43 of 100 (Notable)
Koln-Bonn	Germany	Record daily precipitation	39.7 mm (1.6 in)	42 of 100 (Notable)

Counts by Type and Timescale

665 records

Records set or tied on 30 September 1990 by type: Highest daily maximum 62, Lowest daily maximum 35, Highest daily minimum 126, Lowest daily minimum 25, Heaviest daily rainfall 415, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 30 September 1990 by type
Record type	Records
Highest daily maximum	62
Lowest daily maximum	35
Highest daily minimum	126
Lowest daily minimum	25
Heaviest daily rainfall	415
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 30 September 1990 by timescale: all-time 0, monthly 41, daily 624.

How Much Records Were Beaten By

574 broken records

Margins by which the 574 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.5. Ties are not counted.

Top 20 by Significance

30 September 1990

Top 20 records on 30 September 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1990	Mainz-Lerchenberg (Zdf), DE	daily rain	31.6 mm (1.2 in)	14.3 mm (0.6 in)	96 years	68 of 100 (Major)
30 September 1990	Sandbackshult, SE	daily rain	38.4 mm (1.5 in)	23.0 mm (0.9 in)	61 years	62 of 100 (Major)
30 September 1990	Varberg, SE	daily rain	31.1 mm (1.2 in)	13.6 mm (0.5 in)	101 years	61 of 100 (Major)
30 September 1990	Offenbach/M. (Stadt), DE	monthly rain	58.9 mm (2.3 in)	21.0 mm (0.8 in)	23 years	57 of 100 (Notable)
30 September 1990	Chisos Basin, US	daily rain	66.0 mm (2.6 in)	48.0 mm (1.9 in)	44 years	57 of 100 (Notable)
30 September 1990	Irako, JP	daily rain	151.9 mm (6.0 in)	122.1 mm (4.8 in)	36 years	55 of 100 (Notable)
30 September 1990	Ajiro, JP	daily rain	174.0 mm (6.9 in)	134.3 mm (5.3 in)	39 years	55 of 100 (Notable)
30 September 1990	Mahackala, RU	daily rain	84.4 mm (3.3 in)	43.1 mm (1.7 in)	19 years	55 of 100 (Notable)
30 September 1990	Vaexjoe, SE	daily rain	29.4 mm (1.2 in)	12.0 mm (0.5 in)	72 years	54 of 100 (Notable)
30 September 1990	Halmstad, SE	daily rain	33.9 mm (1.3 in)	15.3 mm (0.6 in)	72 years	54 of 100 (Notable)
30 September 1990	Hassleby, SE	daily rain	38.3 mm (1.5 in)	29.2 mm (1.1 in)	20 years	53 of 100 (Notable)
30 September 1990	Huskvarna, SE	daily rain	37.3 mm (1.5 in)	26.8 mm (1.1 in)	20 years	53 of 100 (Notable)
30 September 1990	Melsungen-Burstoss, DE	daily rain	40.5 mm (1.6 in)	29.6 mm (1.2 in)	27 years	52 of 100 (Notable)
30 September 1990	Yokohama, JP	daily rain	184.9 mm (7.3 in)	130.5 mm (5.1 in)	27 years	52 of 100 (Notable)
30 September 1990	Katsuura, JP	daily rain	242.1 mm (9.5 in)	122.6 mm (4.8 in)	28 years	52 of 100 (Notable)
30 September 1990	Bad Kissingen, DE	daily rain	33.2 mm (1.3 in)	20.0 mm (0.8 in)	20 years	50 of 100 (Notable)
30 September 1990	Jonkopings_Flygplats, SE	daily rain	34.2 mm (1.3 in)	25.1 mm (1.0 in)	20 years	50 of 100 (Notable)
30 September 1990	Ohs, SE	daily rain	40.5 mm (1.6 in)	27.5 mm (1.1 in)	20 years	50 of 100 (Notable)
30 September 1990	Rorvik_D, SE	daily rain	45.5 mm (1.8 in)	31.5 mm (1.2 in)	20 years	50 of 100 (Notable)
30 September 1990	Oskarshamn, SE	daily rain	35.0 mm (1.4 in)	25.0 mm (1.0 in)	20 years	50 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

1806 to 1990

Records set or tied on this calendar date in each year from 1806 to 1990. 1990 had 665 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	529

Download the Data

Data for records on 1990-09-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	496
20 to 40	53
40 to 60	11
60 to 80	5
80 to 100	2
100 to 120	1
120 to 140	5
140 to 160	1