Weather Records on 30 September 2023

1,012 weather records were set or tied worldwide on 30 September 2023. Highest significance: Aparan, AM.

Key Facts for 30 September 2023

On 30 September 2023, 1,012 weather records were set or tied at long-record stations worldwide.
792 were record highs and 69 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 27 monthly and 985 daily.
Aparan set a daily record precipitation of 99.6 mm (3.9 in) on 30 September 2023.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 436 records.

Record Map

1,012 stations

1,012 station records on 30 September 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Aparan	Armenia	Record daily precipitation	99.6 mm (3.9 in)	65 of 100 (Major)
Masrik	Armenia	Record daily precipitation	99.1 mm (3.9 in)	65 of 100 (Major)
Raton Muni Crews Fld AP	United States	Record daily precipitation	34.0 mm (1.3 in)	60 of 100 (Major)
Long Branch-Oakhurst	United States	Record daily precipitation	124.7 mm (4.9 in)	57 of 100 (Notable)
Fallon Naas	United States	Record daily precipitation	30.2 mm (1.2 in)	57 of 100 (Notable)
World Trade Ctr	United States	Record daily precipitation	71.9 mm (2.8 in)	55 of 100 (Notable)
Bakersville	United States	Record daily precipitation	102.9 mm (4.1 in)	53 of 100 (Notable)
Ristijarvi Mustavaara	Finland	Record daily precipitation	36.6 mm (1.4 in)	51 of 100 (Notable)
Suomussalmi Pesio	Finland	Record daily precipitation	30.8 mm (1.2 in)	51 of 100 (Notable)
Vaala Pelso	Finland	Record daily precipitation	32.1 mm (1.3 in)	50 of 100 (Notable)
Suonenjoki Iisvesi	Finland	Record daily precipitation	27.2 mm (1.1 in)	47 of 100 (Notable)
Agalega	Mauritius	Record high maximum temperature	33.6 C (92.5 F)	45 of 100 (Notable)
Logan 1 WNW	United States	Record high maximum temperature	35.0 C (95.0 F)	45 of 100 (Notable)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	44 of 100 (Notable)
Putnam Lake	United States	Record daily precipitation	122.9 mm (4.8 in)	44 of 100 (Notable)
Plant City	United States	Record high minimum temperature	24.4 C (75.9 F)	44 of 100 (Notable)
Cedar Rapids #1	United States	Record high maximum temperature	34.4 C (93.9 F)	44 of 100 (Notable)
Mountainair	United States	Record high minimum temperature	15.0 C (59.0 F)	44 of 100 (Notable)
Sultan Ismail Petra	Malaysia	Record daily precipitation	89.2 mm (3.5 in)	43 of 100 (Notable)
Wakefield 3NW	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Utajarvi Sarkijarvi	Finland	Record daily precipitation	26.0 mm (1.0 in)	42 of 100 (Notable)
Burlington	United States	Record daily precipitation	74.9 mm (2.9 in)	42 of 100 (Notable)
Saint Leo	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Primghar	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
Spencer 1 N	United States	Record high maximum temperature	33.9 C (93.0 F)	42 of 100 (Notable)
Hastings Dam 2	United States	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Montelimar	France	Record high minimum temperature	19.9 C (67.8 F)	41 of 100 (Notable)
Kargopol	Russia	Record high minimum temperature	11.5 C (52.7 F)	41 of 100 (Notable)
Rock Rapids	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Storm Lake	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Park Rapids Muni AP	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Bairnsdale Airport	Australia	Record high maximum temperature	32.0 C (89.6 F)	40 of 100 (Notable)
Kosrae	Federated States of Micronesia	Record daily precipitation	64.3 mm (2.5 in)	40 of 100 (Notable)
Voronez	Russia	Record high maximum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Carroll	United States	Record high maximum temperature	33.3 C (91.9 F)	40 of 100 (Notable)
Lamoni	United States	Record high maximum temperature	33.3 C (91.9 F)	40 of 100 (Notable)
Sibley	United States	Record high minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Ojai	United States	Record low maximum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Storrs	United States	Record daily precipitation	62.5 mm (2.5 in)	38 of 100 (Notable)
Mc Cook	United States	Record high maximum temperature	35.6 C (96.1 F)	38 of 100 (Notable)
Huesca	Spain	Record high maximum temperature	32.1 C (89.8 F)	37 of 100 (Notable)
Mtn Lake	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Shenandoah	United States	Record high maximum temperature	34.4 C (93.9 F)	37 of 100 (Notable)
Belchertown	United States	Record daily precipitation	66.0 mm (2.6 in)	37 of 100 (Notable)
Southbridge 3 SW	United States	Record daily precipitation	66.5 mm (2.6 in)	37 of 100 (Notable)
Bitter Lakes Wl Refuge	United States	Record daily precipitation	43.2 mm (1.7 in)	37 of 100 (Notable)
Denison	United States	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Guthrie Ctr	United States	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Tonopah AP	United States	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Falls City Brenner Fld	United States	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Eucla	Australia	Record high minimum temperature	19.6 C (67.3 F)	35 of 100 (Notable)
Streaky Bay	Australia	Record high maximum temperature	37.5 C (99.5 F)	35 of 100 (Notable)
Seychelles Internat	Seychelles	Record daily precipitation	55.9 mm (2.2 in)	35 of 100 (Notable)
Wauchula	United States	Record high minimum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Charles City	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Oakland	United States	Record high maximum temperature	33.3 C (91.9 F)	35 of 100 (Notable)
Sedan	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)
Rochester Intl AP	United States	Record high minimum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
List/Sylt	Germany	Record high minimum temperature	15.4 C (59.7 F)	34 of 100 (Routine)
Kolka	Latvia	Record high minimum temperature	15.8 C (60.4 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,012 records

Records set or tied on 30 September 2023 by type: Highest daily maximum 408, Lowest daily maximum 61, Highest daily minimum 384, Lowest daily minimum 8, Heaviest daily rainfall 151.

Records on 30 September 2023 by type
Record type	Records
Highest daily maximum	408
Lowest daily maximum	61
Highest daily minimum	384
Lowest daily minimum	8
Heaviest daily rainfall	151
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 September 2023 by timescale: all-time 0, monthly 27, daily 985.

How Much Records Were Beaten By

809 broken records

Margins by which the 809 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.3. Ties are not counted.

Top 20 by Significance

30 September 2023

Top 20 records on 30 September 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 2023	Aparan, AM	daily rain	99.6 mm (3.9 in)	84.7 mm (3.3 in)	56 years	65 of 100 (Major)
30 September 2023	Masrik, AM	daily rain	99.1 mm (3.9 in)	89.3 mm (3.5 in)	56 years	65 of 100 (Major)
30 September 2023	Raton Muni Crews Fld AP, US	daily rain	34.0 mm (1.3 in)	26.9 mm (1.1 in)	64 years	60 of 100 (Major)
30 September 2023	Long Branch-Oakhurst, US	daily rain	124.7 mm (4.9 in)	28.9 mm (1.1 in)	102 years	57 of 100 (Notable)
30 September 2023	Fallon Naas, US	daily rain	30.2 mm (1.2 in)	28.4 mm (1.1 in)	33 years	57 of 100 (Notable)
30 September 2023	World Trade Ctr, US	daily rain	71.9 mm (2.8 in)	26.4 mm (1.0 in)	102 years	55 of 100 (Notable)
30 September 2023	Bakersville, US	daily rain	102.9 mm (4.1 in)	54.1 mm (2.1 in)	60 years	53 of 100 (Notable)
30 September 2023	Ristijarvi Mustavaara, FI	daily rain	36.6 mm (1.4 in)	28.1 mm (1.1 in)	24 years	51 of 100 (Notable)
30 September 2023	Suomussalmi Pesio, FI	daily rain	30.8 mm (1.2 in)	23.9 mm (0.9 in)	24 years	51 of 100 (Notable)
30 September 2023	Vaala Pelso, FI	daily rain	32.1 mm (1.3 in)	17.2 mm (0.7 in)	32 years	50 of 100 (Notable)
30 September 2023	Suonenjoki Iisvesi, FI	daily rain	27.2 mm (1.1 in)	16.6 mm (0.7 in)	20 years	47 of 100 (Notable)
30 September 2023	Agalega, MU	daily high max	33.6 C (92.5 F)	2.6 C (4.7 F)	41 years	45 of 100 (Notable)
30 September 2023	Logan 1 WNW, US	daily high max	35.0 C (95.0 F)	2.8 C (5.0 F)	125 years	45 of 100 (Notable)
30 September 2023	Manati 2 E, PR	daily high min	25.0 C (77.0 F)	1.7 C (3.1 F)	64 years	44 of 100 (Notable)
30 September 2023	Putnam Lake, US	daily rain	122.9 mm (4.8 in)	42.9 mm (1.7 in)	60 years	44 of 100 (Notable)
30 September 2023	Plant City, US	daily high min	24.4 C (75.9 F)	1.1 C (2.0 F)	93 years	44 of 100 (Notable)
30 September 2023	Cedar Rapids #1, US	daily high max	34.4 C (93.9 F)	2.2 C (4.0 F)	125 years	44 of 100 (Notable)
30 September 2023	Mountainair, US	daily high min	15.0 C (59.0 F)	1.7 C (3.1 F)	112 years	44 of 100 (Notable)
30 September 2023	Sultan Ismail Petra, MY	daily rain	89.2 mm (3.5 in)	29.3 mm (1.2 in)	56 years	43 of 100 (Notable)
30 September 2023	Wakefield 3NW, US	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	125 years	43 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 2023

Records set or tied on this calendar date in each year from 1806 to 2023. 2023 had 1,012 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 2023-09-30: 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	789
20 to 40	16
40 to 60	2
60 to 80	0
80 to 100	2