Weather Records on 11 May 1973

429 weather records were set or tied worldwide on 11 May 1973. Highest significance: Ust-Koksa, RU.

Key Facts for 11 May 1973

On 11 May 1973, 429 weather records were set or tied at long-record stations worldwide.
151 were record highs and 72 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 7 monthly and 418 daily.
Ust-Koksa set an all-time record daily precipitation of 70.3 mm (2.8 in) on 11 May 1973.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 464 records.

Record Map

429 stations

429 station records on 11 May 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ust-Koksa	Russia	Record daily precipitation	70.3 mm (2.8 in)	62 of 100 (Major)
Clarke City	Canada	Record daily precipitation	39.1 mm (1.5 in)	57 of 100 (Notable)
Aragats	Armenia	Record daily precipitation	35.9 mm (1.4 in)	53 of 100 (Notable)
Cemal	Russia	Record daily precipitation	28.9 mm (1.1 in)	53 of 100 (Notable)
Middletown 2 NW	United States	Record daily precipitation	39.6 mm (1.6 in)	51 of 100 (Notable)
Santana Do Matos	Brazil	Record daily precipitation	75.5 mm (3.0 in)	46 of 100 (Notable)
Karabulak	Russia	Record daily precipitation	43.9 mm (1.7 in)	45 of 100 (Notable)
Sitio Arapua	Brazil	Record daily precipitation	82.2 mm (3.2 in)	44 of 100 (Notable)
South Egremont	United States	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Brisbane Regional Office	Australia	Record high maximum temperature	32.0 C (89.6 F)	41 of 100 (Notable)
Yajlju	Russia	Record daily precipitation	33.8 mm (1.3 in)	41 of 100 (Notable)
Zinapecuaro	Mexico	Record daily precipitation	85.9 mm (3.4 in)	40 of 100 (Notable)
Glasgow	United States	Record daily precipitation	44.7 mm (1.8 in)	38 of 100 (Notable)
Celina	United States	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Taboleiro Do Meio	Brazil	Record daily precipitation	91.2 mm (3.6 in)	37 of 100 (Notable)
Ziryanovsk	Kazakhstan	Record daily precipitation	52.6 mm (2.1 in)	36 of 100 (Notable)
Freeland	United States	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Gayndah Post Office	Australia	Record high maximum temperature	32.9 C (91.2 F)	35 of 100 (Notable)
Morada Nova	Brazil	Record daily precipitation	70.3 mm (2.8 in)	35 of 100 (Notable)
Marcelino Vieira (Panatis)	Brazil	Record daily precipitation	48.1 mm (1.9 in)	34 of 100 (Routine)
Jakutsk	Russia	Record high minimum temperature	7.9 C (46.2 F)	34 of 100 (Routine)
Exu (Novo Exu)	Brazil	Record daily precipitation	42.1 mm (1.7 in)	33 of 100 (Routine)
Matamoras	United States	Record daily precipitation	44.2 mm (1.7 in)	33 of 100 (Routine)
Phoenixville 1 E	United States	Record high minimum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Millbrook	United States	Record daily precipitation	32.3 mm (1.3 in)	32 of 100 (Routine)
Mohonk Lake	United States	Record daily precipitation	37.8 mm (1.5 in)	32 of 100 (Routine)
Chelsea	United States	Record daily precipitation	29.5 mm (1.2 in)	32 of 100 (Routine)
Burketown Post Office	Australia	Record high minimum temperature	24.0 C (75.2 F)	31 of 100 (Routine)
Palhano	Brazil	Record daily precipitation	71.8 mm (2.8 in)	31 of 100 (Routine)
Stockbridge	United States	Record daily precipitation	38.9 mm (1.5 in)	31 of 100 (Routine)
Crossville Ed & Rsch STN	United States	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Mae Dagua de Dentro	Brazil	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Tbilisi	Georgia	Record high maximum temperature	30.6 C (87.1 F)	30 of 100 (Routine)
Kamloops	Canada	Record low minimum temperature	0.6 C (33.1 F)	29 of 100 (Routine)
Apatzingan (Smn)	Mexico	Record high minimum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Warwick	United States	Record daily precipitation	37.6 mm (1.5 in)	29 of 100 (Routine)
Hawley 1 E	United States	Record daily precipitation	36.6 mm (1.4 in)	29 of 100 (Routine)
Hatch	United States	Record high maximum temperature	35.0 C (95.0 F)	28 of 100 (Routine)
Lehighton 1SSW	United States	Record daily precipitation	48.3 mm (1.9 in)	28 of 100 (Routine)
Southern Cross	Australia	Record high minimum temperature	15.9 C (60.6 F)	27 of 100 (Routine)
Niznij Novgorod	Russia	Record daily precipitation	26.0 mm (1.0 in)	27 of 100 (Routine)
Lakeview 3 NE	United States	Record daily precipitation	42.2 mm (1.7 in)	27 of 100 (Routine)
Midland 4 ENE	United States	Record high maximum temperature	37.8 C (100.0 F)	27 of 100 (Routine)
Fazenda Ajudas	Brazil	Record daily precipitation	26.2 mm (1.0 in)	26 of 100 (Routine)
Fernie	Canada	Record low minimum temperature	-3.9 C (25.0 F)	26 of 100 (Routine)
Lake Louise	Canada	Record low minimum temperature	-11.1 C (12.0 F)	26 of 100 (Routine)
Goose A	Canada	Record high maximum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Enisejsk	Russia	Record high minimum temperature	8.1 C (46.6 F)	26 of 100 (Routine)
Nashville	United States	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
Rockport 1 ESE	United States	Record daily precipitation	41.7 mm (1.6 in)	26 of 100 (Routine)
Windham 3 E	United States	Record daily precipitation	31.5 mm (1.2 in)	26 of 100 (Routine)
Monterey	United States	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Manchester	United States	Record daily precipitation	28.2 mm (1.1 in)	26 of 100 (Routine)
Jarrahdale	Australia	Record daily precipitation	33.0 mm (1.3 in)	25 of 100 (Routine)
Emerald Post Office	Australia	Record high maximum temperature	32.4 C (90.3 F)	25 of 100 (Routine)
Vinhedo	Brazil	Record daily precipitation	40.0 mm (1.6 in)	25 of 100 (Routine)
Hedley	Canada	Record low minimum temperature	-2.2 C (28.0 F)	25 of 100 (Routine)
Blackfoot Fire Dept	United States	Record low minimum temperature	-4.4 C (24.1 F)	25 of 100 (Routine)
Newton	United States	Record daily precipitation	28.7 mm (1.1 in)	25 of 100 (Routine)
Marble Bar Comparison	Australia	Record high minimum temperature	23.2 C (73.8 F)	24 of 100 (Routine)

Counts by Type and Timescale

429 records

Records set or tied on 11 May 1973 by type: Highest daily maximum 83, Lowest daily maximum 10, Highest daily minimum 68, Lowest daily minimum 62, Heaviest daily rainfall 206.

Records on 11 May 1973 by type
Record type	Records
Highest daily maximum	83
Lowest daily maximum	10
Highest daily minimum	68
Lowest daily minimum	62
Heaviest daily rainfall	206
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 May 1973 by timescale: all-time 4, monthly 7, daily 418.

How Much Records Were Beaten By

347 broken records

Margins by which the 347 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 47.2. Ties are not counted.

Top 20 by Significance

11 May 1973

Top 20 records on 11 May 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1973	Ust-Koksa, RU	all-time rain	70.3 mm (2.8 in)	18.5 mm (0.7 in)	21 years	62 of 100 (Major)
11 May 1973	Clarke City, CA	daily rain	39.1 mm (1.5 in)	30.5 mm (1.2 in)	48 years	57 of 100 (Notable)
11 May 1973	Aragats, AM	daily rain	35.9 mm (1.4 in)	23.7 mm (0.9 in)	30 years	53 of 100 (Notable)
11 May 1973	Cemal, RU	daily rain	28.9 mm (1.1 in)	19.2 mm (0.8 in)	35 years	53 of 100 (Notable)
11 May 1973	Middletown 2 NW, US	daily rain	39.6 mm (1.6 in)	24.4 mm (1.0 in)	72 years	51 of 100 (Notable)
11 May 1973	Santana Do Matos, BR	daily rain	75.5 mm (3.0 in)	47.2 mm (1.9 in)	48 years	46 of 100 (Notable)
11 May 1973	Karabulak, RU	daily rain	43.9 mm (1.7 in)	29.0 mm (1.1 in)	7 years	45 of 100 (Notable)
11 May 1973	Sitio Arapua, BR	monthly rain	82.2 mm (3.2 in)	28.0 mm (1.1 in)	20 years	44 of 100 (Notable)
11 May 1973	South Egremont, US	daily rain	41.9 mm (1.6 in)	25.4 mm (1.0 in)	16 years	42 of 100 (Notable)
11 May 1973	Brisbane Regional Office, AU	daily high max	32.0 C (89.6 F)	4.2 C (7.6 F)	52 years	41 of 100 (Notable)
11 May 1973	Yajlju, RU	daily rain	33.8 mm (1.3 in)	16.6 mm (0.7 in)	40 years	41 of 100 (Notable)
11 May 1973	Zinapecuaro, MX	all-time rain	85.9 mm (3.4 in)	10.0 mm (0.4 in)	10 years	40 of 100 (Notable)
11 May 1973	Glasgow, US	daily rain	44.7 mm (1.8 in)	21.8 mm (0.9 in)	48 years	38 of 100 (Notable)
11 May 1973	Celina, US	daily rain	37.6 mm (1.5 in)	19.1 mm (0.8 in)	52 years	38 of 100 (Notable)
11 May 1973	Taboleiro Do Meio, BR	monthly rain	91.2 mm (3.6 in)	26.9 mm (1.1 in)	6 years	37 of 100 (Notable)
11 May 1973	Ziryanovsk, KZ	all-time rain	52.6 mm (2.1 in)	4.0 mm (0.16 in)	25 years	36 of 100 (Notable)
11 May 1973	Freeland, US	daily rain	53.3 mm (2.1 in)	20.0 mm (0.8 in)	39 years	36 of 100 (Notable)
11 May 1973	Gayndah Post Office, AU	daily high max	32.9 C (91.2 F)	3.4 C (6.1 F)	52 years	35 of 100 (Notable)
11 May 1973	Morada Nova, BR	daily rain	70.3 mm (2.8 in)	20.5 mm (0.8 in)	51 years	35 of 100 (Notable)
11 May 1973	Marcelino Vieira (Panatis), BR	daily rain	48.1 mm (1.9 in)	39.9 mm (1.6 in)	28 years	34 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

1814 to 1973

Records set or tied on this calendar date in each year from 1814 to 1973. 1973 had 429 records.

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

Records on 05-11 in each year
Year	Records
1814	3
1832	1
1836	3
1837	1
1838	1
1848	2
1856	1
1860	2
1865	1
1867	1
1869	1
1872	1
1874	2
1879	2
1880	1
1881	5
1883	3
1884	2
1885	1
1886	2
1887	1
1888	1
1889	2
1892	1
1893	3
1894	2
1895	4
1896	3
1897	6
1898	5
1900	7
1901	9
1902	6
1903	7
1904	6
1905	12
1906	21
1907	44
1908	9
1909	12
1910	16
1911	99
1912	21
1913	20
1914	20
1915	16
1916	22
1917	40
1918	54
1919	56
1920	181
1921	58
1922	61
1923	111
1924	239
1925	410
1926	472
1927	318
1928	252
1929	126
1930	380
1931	254
1932	170
1933	429
1934	332
1935	276
1936	363
1937	170
1938	141
1939	213
1940	340
1941	411
1942	389
1943	646
1944	408
1945	483
1946	747
1947	480
1948	407
1949	451
1950	285
1951	395
1952	629
1953	686
1954	492
1955	235
1956	942
1957	439
1958	499
1959	575
1960	809
1961	663
1962	670
1963	984
1964	299
1965	356
1966	992
1967	974
1968	909
1969	349
1970	764
1971	565
1972	673
1973	429
1974	795
1975	383
1976	509
1977	836
1978	1,070
1979	1,239
1980	693
1981	1,298
1982	624
1983	930
1984	666
1985	835
1986	684
1987	1,247
1988	485
1989	952
1990	935
1991	990
1992	728
1993	1,088
1994	633
1995	1,244
1996	1,088
1997	1,033
1998	1,315
1999	1,052
2000	1,286
2001	848
2002	845
2003	1,321
2004	834
2005	944
2006	822
2007	833
2008	1,015
2009	605
2010	1,292
2011	1,414
2012	1,181
2013	615
2014	662
2015	1,038
2016	497
2017	546
2018	988
2019	915
2020	1,068
2021	590
2022	1,470
2023	390
2024	579
2025	1,104
2026	797

Download the Data

Data for records on 1973-05-11: 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).

Histogram of margins by which records were beaten on 11 May 1973
Margin	Records
0 to 10	293
10 to 20	37
20 to 30	13
30 to 40	3
40 to 50	1