Weather Records on 30 October 1947

252 weather records were set or tied worldwide on 30 October 1947. Highest significance: Killora (Grasmere), AU.

Key Facts for 30 October 1947

On 30 October 1947, 252 weather records were set or tied at long-record stations worldwide.
99 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 252 daily.
Killora (Grasmere) set a daily record precipitation of 42.7 mm (1.7 in) on 30 October 1947.
Across 153 earlier years (1799 to 2025) the same calendar date averaged 492 records.

Record Map

252 stations

252 station records on 30 October 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 October 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Killora (Grasmere)	Australia	Record daily precipitation	42.7 mm (1.7 in)	51 of 100 (Notable)
Yarra (Rowe's Lagoon)	Australia	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Snug Primary School	Australia	Record daily precipitation	50.8 mm (2.0 in)	50 of 100 (Notable)
Kingston	Australia	Record daily precipitation	43.2 mm (1.7 in)	48 of 100 (Notable)
Cape Bruny Lighthouse	Australia	Record daily precipitation	43.9 mm (1.7 in)	47 of 100 (Notable)
Rokeby (the Mall)	Australia	Record daily precipitation	34.0 mm (1.3 in)	47 of 100 (Notable)
Sanborn	United States	Record daily precipitation	43.9 mm (1.7 in)	46 of 100 (Notable)
Mount Nelson	Australia	Record daily precipitation	37.6 mm (1.5 in)	45 of 100 (Notable)
Oberlin	United States	Record daily precipitation	47.5 mm (1.9 in)	45 of 100 (Notable)
Highmore	United States	Record daily precipitation	34.8 mm (1.4 in)	44 of 100 (Notable)
Armour	United States	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Hamilton (Uralla)	Australia	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Port Arthur	Australia	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Colebrook (the Meadows)	Australia	Record daily precipitation	34.3 mm (1.4 in)	34 of 100 (Routine)
Kottarakara	India	Record daily precipitation	89.7 mm (3.5 in)	34 of 100 (Routine)
Hartington	United States	Record daily precipitation	35.3 mm (1.4 in)	33 of 100 (Routine)
Robeville	Australia	Record daily precipitation	30.7 mm (1.2 in)	32 of 100 (Routine)
Osterley	Australia	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Hvar	Croatia	Record daily precipitation	50.0 mm (2.0 in)	32 of 100 (Routine)
Middletown 4 W	United States	Record daily precipitation	37.3 mm (1.5 in)	32 of 100 (Routine)
Oakdale	United States	Record daily precipitation	49.5 mm (1.9 in)	31 of 100 (Routine)
Nanaimo	Canada	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
South Egremont	United States	Record daily precipitation	50.5 mm (2.0 in)	30 of 100 (Routine)
Ft Yates 4 SW	United States	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Highcroft	Australia	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Sheldon	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Lynch	United States	Record daily precipitation	46.5 mm (1.8 in)	28 of 100 (Routine)
Walthill 1E	United States	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Burnie (No 1)	Australia	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Hobart (Waterworks Reserve)	Australia	Record daily precipitation	28.7 mm (1.1 in)	25 of 100 (Routine)
Cambridge (Milford)	Australia	Record daily precipitation	33.3 mm (1.3 in)	25 of 100 (Routine)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	77.5 mm (3.1 in)	25 of 100 (Routine)
Petcheys Bay	Australia	Record daily precipitation	26.2 mm (1.0 in)	24 of 100 (Routine)
Saltspring Island	Canada	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
Melfort	Canada	Record high minimum temperature	3.9 C (39.0 F)	22 of 100 (Routine)
Presque Isle	United States	Record high maximum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Punta Gorda	United States	Record high minimum temperature	24.4 C (75.9 F)	21 of 100 (Routine)
Norton 9SSE	United States	Record high minimum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Ravenna	United States	Record high minimum temperature	12.8 C (55.0 F)	21 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record high minimum temperature	6.7 C (44.1 F)	21 of 100 (Routine)
Redfield	United States	Record high minimum temperature	7.8 C (46.0 F)	21 of 100 (Routine)
Yarrabubba	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Markovo	Russia	Record daily precipitation	5.2 mm (0.20 in)	20 of 100 (Routine)
Yantabulla Station	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Maatsuyker Island Lighthouse	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Woomera (Oakden Hills)	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Wilpena Head Station	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Haig	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Koonamore	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Bushy Park (Bushy Park Estates	Australia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Rpf 126 Mile	Australia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Menzies	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Blair	United States	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Woomera (South Gap Station)	Australia	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Mount Magnet	Australia	Record daily precipitation	1.5 mm (0.06 in)	20 of 100 (Routine)
Minot Exp STN	United States	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Stanton	United States	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Menno	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Clydebank	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

252 records

Records set or tied on 30 October 1947 by type: Highest daily maximum 23, Lowest daily maximum 4, Highest daily minimum 76, Lowest daily minimum 6, Heaviest daily rainfall 142, Heaviest daily snowfall 1.

Records on 30 October 1947 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	4
Highest daily minimum	76
Lowest daily minimum	6
Heaviest daily rainfall	142
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 October 1947 by timescale: all-time 0, monthly 0, daily 252.

How Much Records Were Beaten By

210 broken records

Margins by which the 210 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 48.3. Ties are not counted.

Top 20 by Significance

30 October 1947

Top 20 records on 30 October 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 October 1947	Killora (Grasmere), AU	daily rain	42.7 mm (1.7 in)	33.6 mm (1.3 in)	28 years	51 of 100 (Notable)
30 October 1947	Yarra (Rowe's Lagoon), AU	daily rain	38.1 mm (1.5 in)	30.7 mm (1.2 in)	16 years	50 of 100 (Notable)
30 October 1947	Snug Primary School, AU	daily rain	50.8 mm (2.0 in)	39.1 mm (1.5 in)	24 years	50 of 100 (Notable)
30 October 1947	Kingston, AU	daily rain	43.2 mm (1.7 in)	26.9 mm (1.1 in)	16 years	48 of 100 (Notable)
30 October 1947	Cape Bruny Lighthouse, AU	daily rain	43.9 mm (1.7 in)	17.5 mm (0.7 in)	16 years	47 of 100 (Notable)
30 October 1947	Rokeby (the Mall), AU	daily rain	34.0 mm (1.3 in)	19.3 mm (0.8 in)	16 years	47 of 100 (Notable)
30 October 1947	Sanborn, US	daily rain	43.9 mm (1.7 in)	28.2 mm (1.1 in)	20 years	46 of 100 (Notable)
30 October 1947	Mount Nelson, AU	daily rain	37.6 mm (1.5 in)	20.8 mm (0.8 in)	16 years	45 of 100 (Notable)
30 October 1947	Oberlin, US	daily rain	47.5 mm (1.9 in)	22.1 mm (0.9 in)	52 years	45 of 100 (Notable)
30 October 1947	Highmore, US	daily rain	34.8 mm (1.4 in)	24.9 mm (1.0 in)	24 years	44 of 100 (Notable)
30 October 1947	Armour, US	daily rain	45.0 mm (1.8 in)	29.8 mm (1.2 in)	17 years	38 of 100 (Notable)
30 October 1947	Hamilton (Uralla), AU	daily rain	25.4 mm (1.0 in)	9.1 mm (0.36 in)	40 years	37 of 100 (Notable)
30 October 1947	Port Arthur, AU	daily rain	31.2 mm (1.2 in)	0.7 mm (0.03 in)	83 years	35 of 100 (Notable)
30 October 1947	Colebrook (the Meadows), AU	daily rain	34.3 mm (1.4 in)	18.6 mm (0.7 in)	8 years	34 of 100 (Routine)
30 October 1947	Kottarakara, IN	daily rain	89.7 mm (3.5 in)	48.3 mm (1.9 in)	33 years	34 of 100 (Routine)
30 October 1947	Hartington, US	daily rain	35.3 mm (1.4 in)	13.2 mm (0.5 in)	50 years	33 of 100 (Routine)
30 October 1947	Robeville, AU	daily rain	30.7 mm (1.2 in)	11.6 mm (0.5 in)	16 years	32 of 100 (Routine)
30 October 1947	Osterley, AU	daily rain	39.6 mm (1.6 in)	18.3 mm (0.7 in)	8 years	32 of 100 (Routine)
30 October 1947	Hvar, HR	daily rain	50.0 mm (2.0 in)	6.7 mm (0.26 in)	64 years	32 of 100 (Routine)
30 October 1947	Middletown 4 W, US	daily rain	37.3 mm (1.5 in)	11.1 mm (0.4 in)	62 years	32 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

1799 to 1947

Records set or tied on this calendar date in each year from 1799 to 1947. 1947 had 252 records.

Counts for years before the ledger starts come from the same station rules.

Records on 10-30 in each year
Year	Records
1799	1
1815	1
1837	1
1839	1
1841	1
1849	1
1856	1
1866	1
1867	1
1869	5
1870	1
1871	1
1873	2
1877	1
1881	4
1885	3
1886	2
1887	1
1888	1
1889	3
1890	4
1891	2
1892	3
1894	7
1896	4
1897	2
1898	2
1899	2
1900	3
1901	9
1902	6
1903	3
1904	1
1905	12
1906	25
1907	12
1908	14
1909	15
1910	22
1911	19
1912	28
1913	38
1914	22
1915	39
1916	23
1917	85
1918	189
1919	80
1920	73
1921	31
1922	108
1923	202
1924	246
1925	755
1926	131
1927	259
1928	195
1929	277
1930	228
1931	144
1932	181
1933	454
1934	198
1935	739
1936	253
1937	496
1938	245
1939	240
1940	251
1941	393
1942	877
1943	255
1944	497
1945	446
1946	826
1947	252
1948	326
1949	528
1950	1,186
1951	373
1952	635
1953	522
1954	276
1955	494
1956	716
1957	531
1958	366
1959	859
1960	258
1961	781
1962	382
1963	353
1964	488
1965	439
1966	490
1967	665
1968	555
1969	656
1970	636
1971	1,663
1972	902
1973	534
1974	1,039
1975	427
1976	760
1977	882
1978	359
1979	809
1980	885
1981	547
1982	534
1983	549
1984	1,270
1985	848
1986	422
1987	883
1988	972
1989	904
1990	685
1991	2,772
1992	1,228
1993	2,095
1994	777
1995	831
1996	1,299
1997	1,033
1998	771
1999	897
2000	1,659
2001	1,233
2002	1,564
2003	973
2004	1,188
2005	1,144
2006	886
2007	773
2008	1,310
2009	1,513
2010	619
2011	1,022
2012	1,413
2013	622
2014	297
2015	395
2016	981
2017	783
2018	507
2019	1,931
2020	683
2021	486
2022	762
2023	969
2024	1,393
2025	322

Download the Data

Data for records on 1947-10-30: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	170
10 to 20	25
20 to 30	9
30 to 40	5
40 to 50	1