Weather Records on 9 May 1951

188 weather records were set or tied worldwide on 9 May 1951. Highest significance: Preston Reservoir, AU.

Key Facts for 9 May 1951

On 9 May 1951, 188 weather records were set or tied at long-record stations worldwide.
31 were record highs and 17 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 180 daily.
Preston Reservoir set a daily record precipitation of 27.2 mm (1.1 in) on 9 May 1951.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 434 records.

Record Map

188 stations

188 station records on 9 May 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Preston Reservoir	Australia	Record daily precipitation	27.2 mm (1.1 in)	52 of 100 (Notable)
Canterbury	Australia	Record daily precipitation	38.9 mm (1.5 in)	51 of 100 (Notable)
Eltham	Australia	Record daily precipitation	32.3 mm (1.3 in)	50 of 100 (Notable)
Cheltenham Kingston Centre	Australia	Record daily precipitation	31.8 mm (1.3 in)	47 of 100 (Notable)
Box Hill Aged Mens Retreat	Australia	Record daily precipitation	32.5 mm (1.3 in)	45 of 100 (Notable)
Burnley Richmond Park	Australia	Record daily precipitation	41.7 mm (1.6 in)	45 of 100 (Notable)
Herefoss	Norway	Record snow depth	34.0 cm (13.4 in)	45 of 100 (Notable)
Kinglake West (Wallaby Creek)	Australia	Record daily precipitation	46.5 mm (1.8 in)	41 of 100 (Notable)
Przhevalsk	Kyrgyzstan	Record daily precipitation	25.5 mm (1.0 in)	39 of 100 (Notable)
Hopewell 1 SE	United States	Record daily precipitation	57.4 mm (2.3 in)	39 of 100 (Notable)
Burwood East	Australia	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Aseral	Norway	Record snow depth	36.0 cm (14.2 in)	36 of 100 (Notable)
Tuddal	Norway	Record snow depth	56.0 cm (22.0 in)	35 of 100 (Notable)
Academy 2NE	United States	Record daily precipitation	47.0 mm (1.9 in)	35 of 100 (Notable)
Grootfontein	Namibia	Record daily precipitation	28.0 mm (1.1 in)	33 of 100 (Routine)
Hawthorn	Australia	Record daily precipitation	48.8 mm (1.9 in)	32 of 100 (Routine)
Prahran (Como House)	Australia	Record daily precipitation	46.0 mm (1.8 in)	32 of 100 (Routine)
Toorak	Australia	Record daily precipitation	52.8 mm (2.1 in)	32 of 100 (Routine)
Makwassie	South Africa	Record daily precipitation	29.2 mm (1.1 in)	30 of 100 (Routine)
Postmyr I Drangedal	Norway	Record snow depth	70.0 cm (27.6 in)	28 of 100 (Routine)
Orangajuli	India	Record daily precipitation	100.1 mm (3.9 in)	27 of 100 (Routine)
Sibley	United States	Record daily precipitation	31.0 mm (1.2 in)	26 of 100 (Routine)
Lorne Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Hedal I Valdres	Norway	Record snow depth	68.0 cm (26.8 in)	24 of 100 (Routine)
Albacete Los Llanos	Spain	Record low maximum temperature	9.6 C (49.3 F)	24 of 100 (Routine)
Burdekin Shire Council	Australia	Record high maximum temperature	31.1 C (88.0 F)	22 of 100 (Routine)
Sanborn	United States	Record daily precipitation	37.1 mm (1.5 in)	22 of 100 (Routine)
Spencer 1 N	United States	Record daily precipitation	31.2 mm (1.2 in)	22 of 100 (Routine)
Jeanerette 5 NW	United States	Record low maximum temperature	20.6 C (69.1 F)	22 of 100 (Routine)
Bordeaux-Merignac	France	Record low maximum temperature	11.8 C (53.2 F)	21 of 100 (Routine)
Storm Lake	United States	Record daily precipitation	32.8 mm (1.3 in)	21 of 100 (Routine)
Tsumeb - Pol	Namibia	Record daily precipitation	7.0 mm (0.28 in)	20 of 100 (Routine)
Epping	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Chapple Vale	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Smythesdale	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Rooipoort	South Africa	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Vryburg (Pol)	South Africa	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Sfax El-Maou	Tunisia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Elim (Hosp)	South Africa	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Yarra River (Yarra Glen)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Port Campbell (Waare)	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Villa Nora (Pol)	South Africa	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Flemington Racecourse	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Cape Bruny Lighthouse	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Hoyleton	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Barmera (Cobdogla)	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Middle Creek (Leneva)	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Robeville	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Roto (Merimerriwa Tank)	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Jindera Public School	Australia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Tangambalanga NE Dairy	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Zharkent	Kazakhstan	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Ringwood	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Broadford Golf Course	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Croydon (Samuel Street)	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Daylesford	Australia	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Risnes I Fjotland	Norway	Record snow depth	26.0 cm (10.2 in)	20 of 100 (Routine)
Castlewood	United States	Record daily precipitation	35.3 mm (1.4 in)	20 of 100 (Routine)
Murrawombi	Australia	Record daily precipitation	9.7 mm (0.38 in)	19 of 100 (Routine)
Urana (Cocketgedong)	Australia	Record daily precipitation	13.5 mm (0.5 in)	19 of 100 (Routine)

Counts by Type and Timescale

188 records

Records set or tied on 9 May 1951 by type: Highest daily maximum 15, Lowest daily maximum 8, Highest daily minimum 16, Lowest daily minimum 9, Heaviest daily rainfall 132, Heaviest daily snowfall 1, Deepest snow cover 7.

Records on 9 May 1951 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	8
Highest daily minimum	16
Lowest daily minimum	9
Heaviest daily rainfall	132
Heaviest daily snowfall	1
Deepest snow cover	7

Records on 9 May 1951 by timescale: all-time 0, monthly 8, daily 180.

How Much Records Were Beaten By

166 broken records

Margins by which the 166 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

9 May 1951

Top 20 records on 9 May 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1951	Preston Reservoir, AU	daily rain	27.2 mm (1.1 in)	21.9 mm (0.9 in)	28 years	52 of 100 (Notable)
9 May 1951	Canterbury, AU	daily rain	38.9 mm (1.5 in)	32.8 mm (1.3 in)	28 years	51 of 100 (Notable)
9 May 1951	Eltham, AU	daily rain	32.3 mm (1.3 in)	19.6 mm (0.8 in)	41 years	50 of 100 (Notable)
9 May 1951	Cheltenham Kingston Centre, AU	daily rain	31.8 mm (1.3 in)	21.6 mm (0.9 in)	28 years	47 of 100 (Notable)
9 May 1951	Box Hill Aged Mens Retreat, AU	daily rain	32.5 mm (1.3 in)	24.9 mm (1.0 in)	9 years	45 of 100 (Notable)
9 May 1951	Burnley Richmond Park, AU	daily rain	41.7 mm (1.6 in)	31.3 mm (1.2 in)	8 years	45 of 100 (Notable)
9 May 1951	Herefoss, NO	daily snow depth	34.0 cm (13.4 in)	32.0 cm (12.6 in)	26 years	45 of 100 (Notable)
9 May 1951	Kinglake West (Wallaby Creek), AU	daily rain	46.5 mm (1.8 in)	15.5 mm (0.6 in)	61 years	41 of 100 (Notable)
9 May 1951	Przhevalsk, KG	daily rain	25.5 mm (1.0 in)	13.0 mm (0.5 in)	40 years	39 of 100 (Notable)
9 May 1951	Hopewell 1 SE, US	daily rain	57.4 mm (2.3 in)	28.2 mm (1.1 in)	24 years	39 of 100 (Notable)
9 May 1951	Burwood East, AU	daily rain	25.4 mm (1.0 in)	17.8 mm (0.7 in)	28 years	36 of 100 (Notable)
9 May 1951	Aseral, NO	daily snow depth	36.0 cm (14.2 in)	21.0 cm (8.3 in)	33 years	36 of 100 (Notable)
9 May 1951	Tuddal, NO	daily snow depth	56.0 cm (22.0 in)	33.0 cm (13.0 in)	26 years	35 of 100 (Notable)
9 May 1951	Academy 2NE, US	daily rain	47.0 mm (1.9 in)	22.9 mm (0.9 in)	20 years	35 of 100 (Notable)
9 May 1951	Grootfontein, NA	monthly rain	28.0 mm (1.1 in)	7.0 mm (0.28 in)	29 years	33 of 100 (Routine)
9 May 1951	Hawthorn, AU	monthly rain	48.8 mm (1.9 in)	4.9 mm (0.19 in)	32 years	32 of 100 (Routine)
9 May 1951	Prahran (Como House), AU	monthly rain	46.0 mm (1.8 in)	2.8 mm (0.11 in)	45 years	32 of 100 (Routine)
9 May 1951	Toorak, AU	monthly rain	52.8 mm (2.1 in)	2.8 mm (0.11 in)	46 years	32 of 100 (Routine)
9 May 1951	Makwassie, ZA	daily rain	29.2 mm (1.1 in)	22.1 mm (0.9 in)	8 years	30 of 100 (Routine)
9 May 1951	Postmyr I Drangedal, NO	daily snow depth	70.0 cm (27.6 in)	25.0 cm (9.8 in)	42 years	28 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

1793 to 1951

Records set or tied on this calendar date in each year from 1793 to 1951. 1951 had 188 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 1951-05-09: 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 50	160
50 to 100	1
100 to 150	0
150 to 200	0
200 to 250	2
250 to 300	1
300 to 350	2