Weather Records on 30 September 1978

399 weather records were set or tied worldwide on 30 September 1978. Highest significance: Muenster, DE.

Key Facts for 30 September 1978

On 30 September 1978, 399 weather records were set or tied at long-record stations worldwide.
153 were record highs and 87 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 17 monthly and 381 daily.
Muenster set a daily record precipitation of 41.7 mm (1.6 in) on 30 September 1978.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 440 records.

Record Map

399 stations

399 station records on 30 September 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Muenster	Germany	Record daily precipitation	41.7 mm (1.6 in)	68 of 100 (Major)
Velikie Luki	Russia	Record daily precipitation	36.9 mm (1.5 in)	65 of 100 (Major)
Wyndham Port	Australia	Record daily precipitation	56.0 mm (2.2 in)	57 of 100 (Notable)
Motozintla (Smn)	Mexico	Record high maximum temperature	36.7 C (98.1 F)	51 of 100 (Notable)
Moyoguarda	Mexico	Record daily precipitation	51.3 mm (2.0 in)	51 of 100 (Notable)
Budapest	Hungary	Record daily precipitation	37.5 mm (1.5 in)	49 of 100 (Notable)
Daugavpils	Latvia	Record daily precipitation	40.5 mm (1.6 in)	47 of 100 (Notable)
Bolaos	Mexico	Record daily precipitation	57.7 mm (2.3 in)	47 of 100 (Notable)
Szombathely	Hungary	Record daily precipitation	29.8 mm (1.2 in)	46 of 100 (Notable)
Bergschenhoek	Netherlands	Record daily precipitation	41.8 mm (1.6 in)	46 of 100 (Notable)
Delft	Netherlands	Record daily precipitation	44.0 mm (1.7 in)	46 of 100 (Notable)
Melle	Germany	Record daily precipitation	29.1 mm (1.1 in)	45 of 100 (Notable)
Scheveningen	Netherlands	Record daily precipitation	40.6 mm (1.6 in)	45 of 100 (Notable)
Helmond	Netherlands	Record daily precipitation	38.7 mm (1.5 in)	45 of 100 (Notable)
Ixtlahuacan del Rio	Mexico	Record daily precipitation	59.9 mm (2.4 in)	42 of 100 (Notable)
Uccle	Belgium	Record low maximum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
The Warriups	Australia	Record daily precipitation	54.0 mm (2.1 in)	39 of 100 (Notable)
Sobolevo	Russia	Record daily precipitation	34.1 mm (1.3 in)	38 of 100 (Notable)
Tambe (Itambe)	Brazil	Record daily precipitation	28.0 mm (1.1 in)	37 of 100 (Notable)
Geldern-Walbeck	Germany	Record daily precipitation	36.8 mm (1.4 in)	37 of 100 (Notable)
Turbine	Canada	Record daily precipitation	38.5 mm (1.5 in)	36 of 100 (Notable)
Ft Duchesne	United States	Record high maximum temperature	31.1 C (88.0 F)	36 of 100 (Notable)
Chapala	Mexico	Record daily precipitation	38.9 mm (1.5 in)	35 of 100 (Notable)
Pomeroy	United States	Record high minimum temperature	14.4 C (57.9 F)	35 of 100 (Notable)
Watsonville Wtr Wks	United States	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Arcade	United States	Record low minimum temperature	-2.2 C (28.0 F)	34 of 100 (Routine)
Dortmund	Germany	Record daily precipitation	27.6 mm (1.1 in)	33 of 100 (Routine)
Mesa	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Lexington Bluegrass AP	United States	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Sable Island	Canada	Record low minimum temperature	4.1 C (39.4 F)	32 of 100 (Routine)
Wuppertal-Buchenhofen	Germany	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Kurnool	India	Record daily precipitation	89.9 mm (3.5 in)	32 of 100 (Routine)
Isabela Substn	Puerto Rico [United States]	Record low maximum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Chohataury	Georgia	Record daily precipitation	74.9 mm (2.9 in)	31 of 100 (Routine)
Princeville	United States	Record daily precipitation	37.3 mm (1.5 in)	31 of 100 (Routine)
Kipawa Laniel	Canada	Record daily precipitation	38.6 mm (1.5 in)	30 of 100 (Routine)
Nappan Cda	Canada	Record low minimum temperature	-4.5 C (23.9 F)	30 of 100 (Routine)
El Paso de Iritu	Mexico	Record daily precipitation	46.5 mm (1.8 in)	30 of 100 (Routine)
Gila Bend 2SE	United States	Record high minimum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Quincy Mem Brg	United States	Record daily precipitation	34.3 mm (1.4 in)	30 of 100 (Routine)
Ludenscheid (Zeppelin-Gymnasiu	Germany	Record daily precipitation	30.6 mm (1.2 in)	29 of 100 (Routine)
Rosso	Mauritania	Record high minimum temperature	35.5 C (95.9 F)	29 of 100 (Routine)
Oudenbosch	Netherlands	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Warren	United States	Record low minimum temperature	-2.2 C (28.0 F)	29 of 100 (Routine)
Willapa Harbor	United States	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Strijen	Netherlands	Record daily precipitation	31.9 mm (1.3 in)	28 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high maximum temperature	21.4 C (70.5 F)	28 of 100 (Routine)
Naalehu 14	United States	Record low maximum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Magdalena	Mexico	Record daily precipitation	27.9 mm (1.1 in)	26 of 100 (Routine)
Ijsselmonde	Netherlands	Record daily precipitation	34.5 mm (1.4 in)	26 of 100 (Routine)
Ukhta Kalevala	Russia	Record low minimum temperature	-8.8 C (16.2 F)	26 of 100 (Routine)
Arnsberg	Germany	Record daily precipitation	25.3 mm (1.0 in)	25 of 100 (Routine)
Malaga Aeropuerto	Spain	Record high maximum temperature	34.4 C (93.9 F)	25 of 100 (Routine)
Alton	United States	Record high minimum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Centralia	United States	Record high minimum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Everett	United States	Record high minimum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Vytegra	Russia	Record low minimum temperature	-5.1 C (22.8 F)	24 of 100 (Routine)
St. Petersburg	Russia	Record low maximum temperature	5.2 C (41.4 F)	24 of 100 (Routine)
Tombstone	United States	Record high minimum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Hatton 9 SE	United States	Record high minimum temperature	12.2 C (54.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

399 records

Records set or tied on 30 September 1978 by type: Highest daily maximum 87, Lowest daily maximum 45, Highest daily minimum 66, Lowest daily minimum 42, Heaviest daily rainfall 155, Heaviest daily snowfall 2, Deepest snow cover 2.

Records on 30 September 1978 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	45
Highest daily minimum	66
Lowest daily minimum	42
Heaviest daily rainfall	155
Heaviest daily snowfall	2
Deepest snow cover	2

Records on 30 September 1978 by timescale: all-time 1, monthly 17, daily 381.

How Much Records Were Beaten By

313 broken records

Margins by which the 313 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 900.0. Ties are not counted.

Top 20 by Significance

30 September 1978

Top 20 records on 30 September 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1978	Muenster, DE	daily rain	41.7 mm (1.6 in)	23.8 mm (0.9 in)	67 years	68 of 100 (Major)
30 September 1978	Velikie Luki, RU	daily rain	36.9 mm (1.5 in)	14.5 mm (0.6 in)	90 years	65 of 100 (Major)
30 September 1978	Wyndham Port, AU	monthly rain	56.0 mm (2.2 in)	21.5 mm (0.8 in)	58 years	57 of 100 (Notable)
30 September 1978	Motozintla (Smn), MX	daily high max	36.7 C (98.1 F)	6.1 C (11.0 F)	53 years	51 of 100 (Notable)
30 September 1978	Moyoguarda, MX	daily rain	51.3 mm (2.0 in)	39.9 mm (1.6 in)	20 years	51 of 100 (Notable)
30 September 1978	Budapest, HU	daily rain	37.5 mm (1.5 in)	29.2 mm (1.1 in)	9 years	49 of 100 (Notable)
30 September 1978	Daugavpils, LV	daily rain	40.5 mm (1.6 in)	33.9 mm (1.3 in)	15 years	47 of 100 (Notable)
30 September 1978	Bolaos, MX	daily rain	57.7 mm (2.3 in)	39.4 mm (1.6 in)	13 years	47 of 100 (Notable)
30 September 1978	Szombathely, HU	daily rain	29.8 mm (1.2 in)	17.3 mm (0.7 in)	63 years	46 of 100 (Notable)
30 September 1978	Bergschenhoek, NL	daily rain	41.8 mm (1.6 in)	25.6 mm (1.0 in)	8 years	46 of 100 (Notable)
30 September 1978	Delft, NL	daily rain	44.0 mm (1.7 in)	29.5 mm (1.2 in)	8 years	46 of 100 (Notable)
30 September 1978	Melle, DE	daily rain	29.1 mm (1.1 in)	18.1 mm (0.7 in)	21 years	45 of 100 (Notable)
30 September 1978	Scheveningen, NL	daily rain	40.6 mm (1.6 in)	10.2 mm (0.4 in)	65 years	45 of 100 (Notable)
30 September 1978	Helmond, NL	daily rain	38.7 mm (1.5 in)	8.7 mm (0.34 in)	67 years	45 of 100 (Notable)
30 September 1978	Ixtlahuacan del Rio, MX	daily rain	59.9 mm (2.4 in)	35.0 mm (1.4 in)	23 years	42 of 100 (Notable)
30 September 1978	Uccle, BE	daily low max	10.0 C (50.0 F)	0.3 C (0.5 F)	135 years	40 of 100 (Notable)
30 September 1978	The Warriups, AU	monthly rain	54.0 mm (2.1 in)	11.1 mm (0.4 in)	5 years	39 of 100 (Notable)
30 September 1978	Sobolevo, RU	daily rain	34.1 mm (1.3 in)	23.4 mm (0.9 in)	9 years	38 of 100 (Notable)
30 September 1978	Tambe (Itambe), BR	daily rain	28.0 mm (1.1 in)	17.5 mm (0.7 in)	25 years	37 of 100 (Notable)
30 September 1978	Geldern-Walbeck, DE	daily rain	36.8 mm (1.4 in)	16.7 mm (0.7 in)	21 years	37 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 1978

Records set or tied on this calendar date in each year from 1806 to 1978. 1978 had 399 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 1978-09-30: 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 200	312
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	1