Weather Records on 30 September 1981

688 weather records were set or tied worldwide on 30 September 1981. Highest significance: Ridgetown, CA.

Key Facts for 30 September 1981

On 30 September 1981, 688 weather records were set or tied at long-record stations worldwide.
252 were record highs and 219 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 46 monthly and 641 daily.
Ridgetown set a daily record precipitation of 61.8 mm (2.4 in) on 30 September 1981.
Across 161 earlier years (1806 to 2026) the same calendar date averaged 438 records.

Record Map

688 stations

688 station records on 30 September 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 September 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ridgetown	Canada	Record daily precipitation	61.8 mm (2.4 in)	59 of 100 (Notable)
Muskegon Co AP	United States	Record daily precipitation	74.9 mm (2.9 in)	59 of 100 (Notable)
Three Rivers	United States	Record daily precipitation	54.9 mm (2.2 in)	58 of 100 (Notable)
Blenheim Station	Australia	Record daily precipitation	55.4 mm (2.2 in)	55 of 100 (Notable)
Milford Gm Proving Ground	United States	Record daily precipitation	129.0 mm (5.1 in)	55 of 100 (Notable)
Chilton	United States	Record daily precipitation	96.5 mm (3.8 in)	55 of 100 (Notable)
Port Stanley	Canada	Record daily precipitation	58.0 mm (2.3 in)	54 of 100 (Notable)
Wallaceburg	Canada	Record daily precipitation	69.0 mm (2.7 in)	54 of 100 (Notable)
Akkol	Kazakhstan	Record daily precipitation	31.7 mm (1.2 in)	52 of 100 (Notable)
Karasjok	Norway	Record daily precipitation	36.1 mm (1.4 in)	51 of 100 (Notable)
Hillsdale	United States	Record daily precipitation	31.8 mm (1.3 in)	47 of 100 (Notable)
Mt Clemens Ang Base	United States	Record daily precipitation	73.7 mm (2.9 in)	47 of 100 (Notable)
Jackson Reynolds Fld	United States	Record daily precipitation	50.3 mm (2.0 in)	45 of 100 (Notable)
Bella Coola	Canada	Record daily precipitation	92.0 mm (3.6 in)	44 of 100 (Notable)
Dryden	Canada	Record daily snowfall	14.0 cm (5.5 in)	43 of 100 (Notable)
Montague 4 NW	United States	Record daily precipitation	63.0 mm (2.5 in)	42 of 100 (Notable)
Clyde A	Canada	Record daily snowfall	14.8 cm (5.8 in)	41 of 100 (Notable)
Emerson	Canada	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Windsor A	Canada	Record daily precipitation	89.0 mm (3.5 in)	40 of 100 (Notable)
Pitea	Sweden	Record high minimum temperature	10.8 C (51.4 F)	40 of 100 (Notable)
Plymouth Pwr Substn	United States	Record daily precipitation	41.7 mm (1.6 in)	40 of 100 (Notable)
Cape Tribulation Store	Australia	Record daily precipitation	94.0 mm (3.7 in)	39 of 100 (Notable)
Minden	Canada	Record low minimum temperature	-6.0 C (21.2 F)	39 of 100 (Notable)
Titusville	United States	Record low minimum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Kalamazoo State Hospital	United States	Record daily precipitation	52.1 mm (2.1 in)	39 of 100 (Notable)
Woodslee Cda	Canada	Record daily precipitation	92.2 mm (3.6 in)	38 of 100 (Notable)
Arhangelsk	Russia	Record high minimum temperature	10.8 C (51.4 F)	38 of 100 (Notable)
Nogales	United States	Record daily precipitation	28.7 mm (1.1 in)	38 of 100 (Notable)
Marquette	United States	Record low maximum temperature	8.3 C (46.9 F)	37 of 100 (Notable)
Sihccajavri	Norway	Record daily precipitation	25.2 mm (1.0 in)	35 of 100 (Notable)
Enosburg Falls	United States	Record low maximum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
Flint Fcwos	United States	Record daily precipitation	56.9 mm (2.2 in)	35 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	47.0 mm (1.9 in)	34 of 100 (Routine)
Ft Morgan	United States	Record high maximum temperature	33.3 C (91.9 F)	34 of 100 (Routine)
Adrian 2 NNE	United States	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Coldwater St School	United States	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Minsk	Belarus	Record high maximum temperature	22.0 C (71.6 F)	33 of 100 (Routine)
Tartu	Estonia	Record high maximum temperature	18.1 C (64.6 F)	33 of 100 (Routine)
Guanacevi (Smn)	Mexico	Record daily precipitation	41.9 mm (1.6 in)	33 of 100 (Routine)
Palpan	Mexico	Record high minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Tg Jiu	Romania	Record low minimum temperature	3.2 C (37.8 F)	33 of 100 (Routine)
Leroy 5 WSW	United States	Record high maximum temperature	32.8 C (91.0 F)	33 of 100 (Routine)
Einasleigh Township	Australia	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Orono	Canada	Record low maximum temperature	7.0 C (44.6 F)	32 of 100 (Routine)
Ladysmith 3W	United States	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Kapuskasing Cda	Canada	Record low minimum temperature	-7.0 C (19.4 F)	31 of 100 (Routine)
Tura	Russia	Record low maximum temperature	-4.5 C (23.9 F)	31 of 100 (Routine)
Mt Pulaski	United States	Record daily precipitation	37.1 mm (1.5 in)	31 of 100 (Routine)
Little Falls City Rsch	United States	Record low minimum temperature	-3.3 C (26.1 F)	31 of 100 (Routine)
Old Forge	United States	Record low maximum temperature	6.7 C (44.1 F)	31 of 100 (Routine)
Salmon Hole	Canada	Record low maximum temperature	7.5 C (45.5 F)	30 of 100 (Routine)
La Harpe	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Bloomer	United States	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Desterro Do Melo	Brazil	Record daily precipitation	32.0 mm (1.3 in)	29 of 100 (Routine)
Watertown	United States	Record low minimum temperature	-1.7 C (28.9 F)	29 of 100 (Routine)
Vasilevici	Belarus	Record high maximum temperature	22.9 C (73.2 F)	28 of 100 (Routine)
Mine Centre	Canada	Record daily snowfall	8.0 cm (3.1 in)	28 of 100 (Routine)
Kentville Cda	Canada	Record low maximum temperature	9.0 C (48.2 F)	28 of 100 (Routine)
Ust-Ozernoe	Russia	Record low minimum temperature	-11.6 C (11.1 F)	28 of 100 (Routine)
Napas	Russia	Record low minimum temperature	-9.5 C (14.9 F)	28 of 100 (Routine)

Counts by Type and Timescale

688 records

Records set or tied on 30 September 1981 by type: Highest daily maximum 108, Lowest daily maximum 146, Highest daily minimum 144, Lowest daily minimum 73, Heaviest daily rainfall 209, Heaviest daily snowfall 8.

Records on 30 September 1981 by type
Record type	Records
Highest daily maximum	108
Lowest daily maximum	146
Highest daily minimum	144
Lowest daily minimum	73
Heaviest daily rainfall	209
Heaviest daily snowfall	8
Deepest snow cover	0

Records on 30 September 1981 by timescale: all-time 1, monthly 46, daily 641.

How Much Records Were Beaten By

540 broken records

Margins by which the 540 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.0. Ties are not counted.

Top 20 by Significance

30 September 1981

Top 20 records on 30 September 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 September 1981	Ridgetown, CA	daily rain	61.8 mm (2.4 in)	36.4 mm (1.4 in)	44 years	59 of 100 (Notable)
30 September 1981	Muskegon Co AP, US	daily rain	74.9 mm (2.9 in)	29.2 mm (1.1 in)	84 years	59 of 100 (Notable)
30 September 1981	Three Rivers, US	daily rain	54.9 mm (2.2 in)	40.2 mm (1.6 in)	54 years	58 of 100 (Notable)
30 September 1981	Blenheim Station, AU	monthly rain	55.4 mm (2.2 in)	30.5 mm (1.2 in)	38 years	55 of 100 (Notable)
30 September 1981	Milford Gm Proving Ground, US	monthly rain	129.0 mm (5.1 in)	35.5 mm (1.4 in)	31 years	55 of 100 (Notable)
30 September 1981	Chilton, US	monthly rain	96.5 mm (3.8 in)	30.7 mm (1.2 in)	20 years	55 of 100 (Notable)
30 September 1981	Port Stanley, CA	daily rain	58.0 mm (2.3 in)	36.7 mm (1.4 in)	16 years	54 of 100 (Notable)
30 September 1981	Wallaceburg, CA	daily rain	69.0 mm (2.7 in)	37.5 mm (1.5 in)	44 years	54 of 100 (Notable)
30 September 1981	Akkol, KZ	daily rain	31.7 mm (1.2 in)	24.6 mm (1.0 in)	28 years	52 of 100 (Notable)
30 September 1981	Karasjok, NO	monthly rain	36.1 mm (1.4 in)	4.9 mm (0.19 in)	73 years	51 of 100 (Notable)
30 September 1981	Hillsdale, US	daily rain	31.8 mm (1.3 in)	16.6 mm (0.7 in)	75 years	47 of 100 (Notable)
30 September 1981	Mt Clemens Ang Base, US	monthly rain	73.7 mm (2.9 in)	5.1 mm (0.20 in)	83 years	47 of 100 (Notable)
30 September 1981	Jackson Reynolds Fld, US	daily rain	50.3 mm (2.0 in)	31.5 mm (1.2 in)	10 years	45 of 100 (Notable)
30 September 1981	Bella Coola, CA	daily rain	92.0 mm (3.6 in)	21.9 mm (0.9 in)	59 years	44 of 100 (Notable)
30 September 1981	Dryden, CA	monthly snowfall	14.0 cm (5.5 in)	6.4 cm (2.5 in)	53 years	43 of 100 (Notable)
30 September 1981	Montague 4 NW, US	daily rain	63.0 mm (2.5 in)	32.5 mm (1.3 in)	23 years	42 of 100 (Notable)
30 September 1981	Clyde A, CA	daily snowfall	14.8 cm (5.8 in)	8.7 cm (3.4 in)	34 years	41 of 100 (Notable)
30 September 1981	Emerson, CA	daily rain	28.0 mm (1.1 in)	1.3 mm (0.05 in)	102 years	41 of 100 (Notable)
30 September 1981	Windsor A, CA	all-time rain	89.0 mm (3.5 in)	11.0 mm (0.4 in)	13 years	40 of 100 (Notable)
30 September 1981	Pitea, SE	daily high min	10.8 C (51.4 F)	2.3 C (4.1 F)	80 years	40 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 1981

Records set or tied on this calendar date in each year from 1806 to 1981. 1981 had 688 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 1981-09-30: 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	506
20 to 40	27
40 to 60	4
60 to 80	2
80 to 100	1