Weather Records on 15 August 1951

597 weather records were set or tied worldwide on 15 August 1951. Highest significance: Bloukrans (Bos), ZA.

Key Facts for 15 August 1951

On 15 August 1951, 597 weather records were set or tied at long-record stations worldwide.
200 were record highs and 150 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 590 daily.
Bloukrans (Bos) set a daily record precipitation of 66.0 mm (2.6 in) on 15 August 1951.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 454 records.

Record Map

597 stations

597 station records on 15 August 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bloukrans (Bos)	South Africa	Record daily precipitation	66.0 mm (2.6 in)	60 of 100 (Major)
Pembina	United States	Record daily precipitation	68.1 mm (2.7 in)	56 of 100 (Notable)
Weston	United States	Record daily precipitation	53.3 mm (2.1 in)	50 of 100 (Notable)
Elandshoek, Boston	South Africa	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	92.7 mm (3.6 in)	46 of 100 (Notable)
Southampton	Canada	Record daily precipitation	38.4 mm (1.5 in)	45 of 100 (Notable)
Goshen 3SW	United States	Record daily precipitation	64.3 mm (2.5 in)	43 of 100 (Notable)
Hillsdale	United States	Record daily precipitation	54.4 mm (2.1 in)	43 of 100 (Notable)
Manapparai	India	Record daily precipitation	101.6 mm (4.0 in)	39 of 100 (Notable)
Jennings	United States	Record high minimum temperature	29.4 C (84.9 F)	39 of 100 (Notable)
Barrie	Canada	Record low maximum temperature	13.3 C (55.9 F)	38 of 100 (Notable)
Gingindlovu	South Africa	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Manchester	United States	Record daily precipitation	49.8 mm (2.0 in)	37 of 100 (Notable)
Lucknow	Canada	Record daily precipitation	41.7 mm (1.6 in)	36 of 100 (Notable)
Camperdown	South Africa	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Noorinbee	Australia	Record daily precipitation	51.3 mm (2.0 in)	35 of 100 (Notable)
Chakaibanda	India	Record daily precipitation	82.0 mm (3.2 in)	35 of 100 (Notable)
Chapra Obsy Sr	India	Record daily precipitation	125.5 mm (4.9 in)	35 of 100 (Notable)
Alma	United States	Record daily precipitation	47.2 mm (1.9 in)	35 of 100 (Notable)
S Haven	United States	Record daily precipitation	52.1 mm (2.1 in)	34 of 100 (Routine)
Canby	United States	Record daily precipitation	66.0 mm (2.6 in)	34 of 100 (Routine)
Watertown Rgnl AP	United States	Record daily precipitation	43.4 mm (1.7 in)	34 of 100 (Routine)
Ottumwa	United States	Record daily precipitation	58.2 mm (2.3 in)	33 of 100 (Routine)
Bay City	United States	Record daily precipitation	63.5 mm (2.5 in)	33 of 100 (Routine)
Grafton	United States	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
West Bend	United States	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Manoharpur	India	Record daily precipitation	109.2 mm (4.3 in)	32 of 100 (Routine)
Bandwan	India	Record daily precipitation	97.8 mm (3.9 in)	32 of 100 (Routine)
E Tawas	United States	Record daily precipitation	27.4 mm (1.1 in)	32 of 100 (Routine)
Milan 1NW	United States	Record daily precipitation	41.4 mm (1.6 in)	32 of 100 (Routine)
Wetaskiwin	Canada	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Hermann	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Attur	India	Record daily precipitation	62.0 mm (2.4 in)	30 of 100 (Routine)
Midland 2	United States	Record daily precipitation	43.9 mm (1.7 in)	30 of 100 (Routine)
Appleton	United States	Record daily precipitation	27.7 mm (1.1 in)	30 of 100 (Routine)
Gingee	India	Record daily precipitation	105.7 mm (4.2 in)	29 of 100 (Routine)
Amatikulu	South Africa	Record daily precipitation	29.2 mm (1.1 in)	29 of 100 (Routine)
Rock Rapids	United States	Record daily precipitation	42.2 mm (1.7 in)	29 of 100 (Routine)
Amite	United States	Record high maximum temperature	38.9 C (102.0 F)	29 of 100 (Routine)
Harbor Beach 1 SSE	United States	Record daily precipitation	71.9 mm (2.8 in)	29 of 100 (Routine)
Pollock	United States	Record daily precipitation	38.4 mm (1.5 in)	29 of 100 (Routine)
Brodhead Wwtp	United States	Record daily precipitation	74.9 mm (2.9 in)	29 of 100 (Routine)
Lalganj	India	Record daily precipitation	119.4 mm (4.7 in)	28 of 100 (Routine)
Brookhaven City	United States	Record high maximum temperature	40.0 C (104.0 F)	28 of 100 (Routine)
Randleman	United States	Record daily precipitation	59.7 mm (2.4 in)	28 of 100 (Routine)
Hancock Exp Farm	United States	Record daily precipitation	37.6 mm (1.5 in)	28 of 100 (Routine)
Velikie Luki	Russia	Record high maximum temperature	27.9 C (82.2 F)	27 of 100 (Routine)
Albia 3 NNE	United States	Record daily precipitation	51.1 mm (2.0 in)	27 of 100 (Routine)
Grand River Lock	United States	Record low maximum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Durango	United States	Record high maximum temperature	33.9 C (93.0 F)	26 of 100 (Routine)
Downing	United States	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Milwaukee Wb City	United States	Record low maximum temperature	17.2 C (63.0 F)	26 of 100 (Routine)
Decorah	United States	Record low maximum temperature	19.4 C (66.9 F)	25 of 100 (Routine)
Grand Coteau	United States	Record high maximum temperature	39.4 C (102.9 F)	25 of 100 (Routine)
Greenville 2 NNE	United States	Record daily precipitation	38.4 mm (1.5 in)	25 of 100 (Routine)
Leakesville 6 WSW	United States	Record high maximum temperature	39.4 C (102.9 F)	25 of 100 (Routine)
Louisville	United States	Record high maximum temperature	39.4 C (102.9 F)	25 of 100 (Routine)
Savage	United States	Record low minimum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
W Pt	United States	Record daily precipitation	41.4 mm (1.6 in)	25 of 100 (Routine)

Counts by Type and Timescale

597 records

Records set or tied on 15 August 1951 by type: Highest daily maximum 139, Lowest daily maximum 67, Highest daily minimum 61, Lowest daily minimum 83, Heaviest daily rainfall 247.

Records on 15 August 1951 by type
Record type	Records
Highest daily maximum	139
Lowest daily maximum	67
Highest daily minimum	61
Lowest daily minimum	83
Heaviest daily rainfall	247
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 1951 by timescale: all-time 1, monthly 6, daily 590.

How Much Records Were Beaten By

457 broken records

Margins by which the 457 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.5. Ties are not counted.

Top 20 by Significance

15 August 1951

Top 20 records on 15 August 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1951	Bloukrans (Bos), ZA	daily rain	66.0 mm (2.6 in)	50.8 mm (2.0 in)	45 years	60 of 100 (Major)
15 August 1951	Pembina, US	daily rain	68.1 mm (2.7 in)	42.4 mm (1.7 in)	37 years	56 of 100 (Notable)
15 August 1951	Weston, US	daily rain	53.3 mm (2.1 in)	41.1 mm (1.6 in)	45 years	50 of 100 (Notable)
15 August 1951	Elandshoek, Boston, ZA	daily rain	34.5 mm (1.4 in)	32.7 mm (1.3 in)	32 years	48 of 100 (Notable)
15 August 1951	Montevideo 1SW, US	monthly rain	92.7 mm (3.6 in)	21.6 mm (0.9 in)	43 years	46 of 100 (Notable)
15 August 1951	Southampton, CA	daily rain	38.4 mm (1.5 in)	20.6 mm (0.8 in)	52 years	45 of 100 (Notable)
15 August 1951	Goshen 3SW, US	daily rain	64.3 mm (2.5 in)	47.8 mm (1.9 in)	9 years	43 of 100 (Notable)
15 August 1951	Hillsdale, US	daily rain	54.4 mm (2.1 in)	31.5 mm (1.2 in)	34 years	43 of 100 (Notable)
15 August 1951	Manapparai, IN	daily rain	101.6 mm (4.0 in)	40.6 mm (1.6 in)	48 years	39 of 100 (Notable)
15 August 1951	Jennings, US	all-time high min	29.4 C (84.9 F)	0.5 C (0.9 F)	38 years	39 of 100 (Notable)
15 August 1951	Barrie, CA	monthly low max	13.3 C (55.9 F)	0.6 C (1.1 F)	65 years	38 of 100 (Notable)
15 August 1951	Gingindlovu, ZA	daily rain	32.3 mm (1.3 in)	22.9 mm (0.9 in)	32 years	38 of 100 (Notable)
15 August 1951	Amanzamnyama (Bos), ZA	daily rain	27.9 mm (1.1 in)	25.4 mm (1.0 in)	20 years	37 of 100 (Notable)
15 August 1951	Manchester, US	daily rain	49.8 mm (2.0 in)	29.5 mm (1.2 in)	20 years	37 of 100 (Notable)
15 August 1951	Lucknow, CA	daily rain	41.7 mm (1.6 in)	11.5 mm (0.5 in)	61 years	36 of 100 (Notable)
15 August 1951	Camperdown, ZA	daily rain	25.4 mm (1.0 in)	23.1 mm (0.9 in)	34 years	36 of 100 (Notable)
15 August 1951	Noorinbee, AU	daily rain	51.3 mm (2.0 in)	32.2 mm (1.3 in)	9 years	35 of 100 (Notable)
15 August 1951	Chakaibanda, IN	daily rain	82.0 mm (3.2 in)	42.1 mm (1.7 in)	29 years	35 of 100 (Notable)
15 August 1951	Chapra Obsy Sr, IN	daily rain	125.5 mm (4.9 in)	60.5 mm (2.4 in)	13 years	35 of 100 (Notable)
15 August 1951	Alma, US	daily rain	47.2 mm (1.9 in)	21.0 mm (0.8 in)	40 years	35 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

1793 to 1951

Records set or tied on this calendar date in each year from 1793 to 1951. 1951 had 597 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 1951-08-15: 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	361
10 to 20	55
20 to 30	22
30 to 40	9
40 to 50	6
50 to 60	3
60 to 70	1