Weather Records on 30 September 1970

334 weather records were set or tied worldwide on 30 September 1970. Highest significance: Sulak, RU.

Key Facts for 30 September 1970

On 30 September 1970, 334 weather records were set or tied at long-record stations worldwide.
100 were record highs and 113 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 23 monthly and 310 daily.
Sulak set an all-time record daily precipitation of 131.4 mm (5.2 in) on 30 September 1970.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 440 records.

Record Map

334 stations

334 station records on 30 September 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sulak	Russia	Record daily precipitation	131.4 mm (5.2 in)	58 of 100 (Notable)
Komsomolsk-Na-Amure	Russia	Record daily precipitation	54.1 mm (2.1 in)	51 of 100 (Notable)
Elderslie, Tweedie	South Africa	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Impendle (Pol)	South Africa	Record daily precipitation	42.5 mm (1.7 in)	46 of 100 (Notable)
Kabale	Uganda	Record daily precipitation	49.0 mm (1.9 in)	45 of 100 (Notable)
Gospic	Croatia	Record low minimum temperature	-5.6 C (21.9 F)	42 of 100 (Notable)
Nidingen A	Sweden	Record daily precipitation	25.9 mm (1.0 in)	41 of 100 (Notable)
Bogorodskoe	Russia	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Coppermine	Canada	Record low minimum temperature	-20.0 C (-4.0 F)	38 of 100 (Notable)
Insizwa (Bos)	South Africa	Record daily precipitation	41.5 mm (1.6 in)	38 of 100 (Notable)
Mahlabatini (Mag)	South Africa	Record daily precipitation	52.5 mm (2.1 in)	37 of 100 (Notable)
Tivjaku	Russia	Record daily precipitation	35.4 mm (1.4 in)	36 of 100 (Notable)
Sovetskaja Gavan	Russia	Record daily precipitation	54.6 mm (2.1 in)	35 of 100 (Notable)
Bizana (Bos)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	35 of 100 (Notable)
Tomsk	Russia	Record high minimum temperature	11.9 C (53.4 F)	34 of 100 (Routine)
Knight L C,Balgowan	South Africa	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
Cramond, Albert Fall	South Africa	Record daily precipitation	50.0 mm (2.0 in)	32 of 100 (Routine)
Cekunda	Russia	Record daily precipitation	37.7 mm (1.5 in)	31 of 100 (Routine)
Tsolo	South Africa	Record daily precipitation	36.5 mm (1.4 in)	31 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	25.1 C (77.2 F)	30 of 100 (Routine)
Isparta	Turkey	Record low maximum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Kotzebue AP	United States	Record low maximum temperature	-1.7 C (28.9 F)	29 of 100 (Routine)
Begusarai	India	Record daily precipitation	95.0 mm (3.7 in)	28 of 100 (Routine)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	28 of 100 (Routine)
Leslie (Mun)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	28 of 100 (Routine)
Clinton	United States	Record low minimum temperature	1.7 C (35.1 F)	28 of 100 (Routine)
Heppner	United States	Record high maximum temperature	30.0 C (86.0 F)	28 of 100 (Routine)
Konigstuhl	Germany	Record daily precipitation	35.8 mm (1.4 in)	27 of 100 (Routine)
Mvenyane	South Africa	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Whiteville	United States	Record low minimum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Willard 4 SW	United States	Record low minimum temperature	4.4 C (39.9 F)	27 of 100 (Routine)
Hatteras	United States	Record low minimum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Kananaskis	Canada	Record high minimum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Nikolaev	Ukraine	Record low minimum temperature	1.3 C (34.3 F)	26 of 100 (Routine)
Farmington	United States	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)
Oberstdorf	Germany	Record daily precipitation	32.7 mm (1.3 in)	25 of 100 (Routine)
Mormon Flat	United States	Record low maximum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Dover	United States	Record low minimum temperature	3.3 C (37.9 F)	25 of 100 (Routine)
Belhaven 1 SE	United States	Record low minimum temperature	6.7 C (44.1 F)	25 of 100 (Routine)
Kainaliu 73.2	United States	Record daily precipitation	45.5 mm (1.8 in)	25 of 100 (Routine)
Beaverlodge Cda	Canada	Record high minimum temperature	12.2 C (54.0 F)	24 of 100 (Routine)
Osijek	Croatia	Record low minimum temperature	-0.7 C (30.7 F)	24 of 100 (Routine)
Simferopol	Ukraine	Record low minimum temperature	-1.3 C (29.7 F)	24 of 100 (Routine)
Ft Pierce	United States	Record daily precipitation	128.8 mm (5.1 in)	24 of 100 (Routine)
Pilger	Canada	Record high maximum temperature	28.3 C (82.9 F)	23 of 100 (Routine)
Korsakov	Russia	Record daily precipitation	25.2 mm (1.0 in)	23 of 100 (Routine)
Senekal (Agr)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	23 of 100 (Routine)
Rockville 1 NE	United States	Record low minimum temperature	2.2 C (36.0 F)	23 of 100 (Routine)
Gavar	Armenia	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Villa Ahumada	Mexico	Record low maximum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Taganrog (Lighthouse)	Russia	Record low minimum temperature	1.4 C (34.5 F)	22 of 100 (Routine)
Sivas	Turkey	Record low maximum temperature	5.8 C (42.4 F)	22 of 100 (Routine)
Winthrop 1 WSW	United States	Record high maximum temperature	30.6 C (87.1 F)	22 of 100 (Routine)
Sarajevo	Bosnia and Herzegovina	Record low minimum temperature	-1.7 C (28.9 F)	21 of 100 (Routine)
Kunzelsau	Germany	Record daily precipitation	28.6 mm (1.1 in)	21 of 100 (Routine)
Ojinaga (Smn)	Mexico	Record low maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Krasnaja_Gora	Russia	Record low maximum temperature	4.2 C (39.6 F)	21 of 100 (Routine)
Blikana	South Africa	Record daily precipitation	38.0 mm (1.5 in)	21 of 100 (Routine)
Utrecht (Tnk)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	21 of 100 (Routine)
Louwsburg (Mag)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	21 of 100 (Routine)

Counts by Type and Timescale

334 records

Records set or tied on 30 September 1970 by type: Highest daily maximum 66, Lowest daily maximum 44, Highest daily minimum 34, Lowest daily minimum 69, Heaviest daily rainfall 121.

Records on 30 September 1970 by type
Record type	Records
Highest daily maximum	66
Lowest daily maximum	44
Highest daily minimum	34
Lowest daily minimum	69
Heaviest daily rainfall	121
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 September 1970 by timescale: all-time 1, monthly 23, daily 310.

How Much Records Were Beaten By

267 broken records

Margins by which the 267 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 47.6. Ties are not counted.

Top 20 by Significance

30 September 1970

Top 20 records on 30 September 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1970	Sulak, RU	all-time rain	131.4 mm (5.2 in)	25.7 mm (1.0 in)	28 years	58 of 100 (Notable)
30 September 1970	Komsomolsk-Na-Amure, RU	daily rain	54.1 mm (2.1 in)	47.6 mm (1.9 in)	29 years	51 of 100 (Notable)
30 September 1970	Elderslie, Tweedie, ZA	daily rain	52.1 mm (2.1 in)	37.9 mm (1.5 in)	19 years	48 of 100 (Notable)
30 September 1970	Impendle (Pol), ZA	daily rain	42.5 mm (1.7 in)	26.0 mm (1.0 in)	28 years	46 of 100 (Notable)
30 September 1970	Kabale, UG	daily rain	49.0 mm (1.9 in)	29.7 mm (1.2 in)	20 years	45 of 100 (Notable)
30 September 1970	Gospic, HR	monthly low min	-5.6 C (21.9 F)	1.6 C (2.9 F)	64 years	42 of 100 (Notable)
30 September 1970	Nidingen A, SE	daily rain	25.9 mm (1.0 in)	4.9 mm (0.19 in)	81 years	41 of 100 (Notable)
30 September 1970	Bogorodskoe, RU	daily rain	25.7 mm (1.0 in)	18.5 mm (0.7 in)	24 years	39 of 100 (Notable)
30 September 1970	Coppermine, CA	monthly low min	-20.0 C (-4.0 F)	6.1 C (11.0 F)	29 years	38 of 100 (Notable)
30 September 1970	Insizwa (Bos), ZA	daily rain	41.5 mm (1.6 in)	24.0 mm (0.9 in)	31 years	38 of 100 (Notable)
30 September 1970	Mahlabatini (Mag), ZA	daily rain	52.5 mm (2.1 in)	27.4 mm (1.1 in)	28 years	37 of 100 (Notable)
30 September 1970	Tivjaku, RU	daily rain	35.4 mm (1.4 in)	21.0 mm (0.8 in)	29 years	36 of 100 (Notable)
30 September 1970	Sovetskaja Gavan, RU	daily rain	54.6 mm (2.1 in)	35.2 mm (1.4 in)	31 years	35 of 100 (Notable)
30 September 1970	Bizana (Bos), ZA	daily rain	34.0 mm (1.3 in)	17.5 mm (0.7 in)	32 years	35 of 100 (Notable)
30 September 1970	Tomsk, RU	daily high min	11.9 C (53.4 F)	2.0 C (3.6 F)	72 years	34 of 100 (Routine)
30 September 1970	Knight L C,Balgowan, ZA	daily rain	48.3 mm (1.9 in)	17.8 mm (0.7 in)	29 years	34 of 100 (Routine)
30 September 1970	Cramond, Albert Fall, ZA	daily rain	50.0 mm (2.0 in)	21.8 mm (0.9 in)	15 years	32 of 100 (Routine)
30 September 1970	Cekunda, RU	daily rain	37.7 mm (1.5 in)	19.1 mm (0.8 in)	7 years	31 of 100 (Routine)
30 September 1970	Tsolo, ZA	daily rain	36.5 mm (1.4 in)	24.5 mm (1.0 in)	15 years	31 of 100 (Routine)
30 September 1970	Nuwara Eliya, LK	daily high max	25.1 C (77.2 F)	1.3 C (2.3 F)	48 years	30 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 1970

Records set or tied on this calendar date in each year from 1806 to 1970. 1970 had 334 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 1970-09-30: 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 10	229
10 to 20	26
20 to 30	9
30 to 40	2
40 to 50	1