Weather Records on 21 August 1955

885 weather records were set or tied worldwide on 21 August 1955. Highest significance: Dublin Phoenix Park, IE.

Key Facts for 21 August 1955

On 21 August 1955, 885 weather records were set or tied at long-record stations worldwide.
536 were record highs and 54 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 30 monthly and 852 daily.
Dublin Phoenix Park set a daily record precipitation of 71.3 mm (2.8 in) on 21 August 1955.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 447 records.

Record Map

885 stations

885 station records on 21 August 1955 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dublin Phoenix Park	Ireland	Record daily precipitation	71.3 mm (2.8 in)	67 of 100 (Major)
Newton Rigg	United Kingdom	Record daily precipitation	42.4 mm (1.7 in)	57 of 100 (Notable)
Wokha	India	Record daily precipitation	224.5 mm (8.8 in)	48 of 100 (Notable)
Ellore	India	Record daily precipitation	142.2 mm (5.6 in)	46 of 100 (Notable)
Kurnool	India	Record daily precipitation	121.9 mm (4.8 in)	46 of 100 (Notable)
Apache Powder Company	United States	Record daily precipitation	52.1 mm (2.1 in)	45 of 100 (Notable)
Podili(Podile)	India	Record daily precipitation	48.5 mm (1.9 in)	43 of 100 (Notable)
Pet Jorhat	India	Record daily precipitation	116.8 mm (4.6 in)	43 of 100 (Notable)
Bluewater 3 WSW	United States	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
The Towers	South Africa	Record daily precipitation	34.5 mm (1.4 in)	42 of 100 (Notable)
Hopefield (Pol)	South Africa	Record daily precipitation	26.4 mm (1.0 in)	41 of 100 (Notable)
Jetsonville ( Muskfield )	Australia	Record daily precipitation	39.4 mm (1.6 in)	39 of 100 (Notable)
Simcoe	Canada	Record high maximum temperature	32.8 C (91.0 F)	39 of 100 (Notable)
Paarl (Tnk)	South Africa	Record daily precipitation	54.7 mm (2.2 in)	39 of 100 (Notable)
Alpine	United States	Record daily precipitation	57.7 mm (2.3 in)	39 of 100 (Notable)
Harnosand	Sweden	Record high minimum temperature	16.5 C (61.7 F)	38 of 100 (Notable)
Umea	Sweden	Record high minimum temperature	17.6 C (63.7 F)	38 of 100 (Notable)
Ft Gaines	United States	Record daily precipitation	67.1 mm (2.6 in)	38 of 100 (Notable)
Brantford	Canada	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Belleville	Canada	Record high maximum temperature	32.8 C (91.0 F)	36 of 100 (Notable)
Nandigama	India	Record daily precipitation	96.0 mm (3.8 in)	36 of 100 (Notable)
Manitowoc	United States	Record high maximum temperature	37.2 C (99.0 F)	36 of 100 (Notable)
Gidhour	India	Record daily precipitation	72.9 mm (2.9 in)	35 of 100 (Notable)
Vrugbaar	South Africa	Record daily precipitation	39.4 mm (1.6 in)	35 of 100 (Notable)
Langebaan	South Africa	Record daily precipitation	27.5 mm (1.1 in)	35 of 100 (Notable)
Trenton 2	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)
Brewarrina Hospital	Australia	Record daily precipitation	34.5 mm (1.4 in)	34 of 100 (Routine)
Pembroke Eddy Match	Canada	Record high maximum temperature	35.6 C (96.1 F)	34 of 100 (Routine)
Ny City Cntrl Park	United States	Record high maximum temperature	35.6 C (96.1 F)	34 of 100 (Routine)
Coonamble Comparison	Australia	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Pakala	India	Record daily precipitation	51.6 mm (2.0 in)	33 of 100 (Routine)
Malmesbury	South Africa	Record daily precipitation	38.0 mm (1.5 in)	33 of 100 (Routine)
Midland 2	United States	Record high maximum temperature	36.1 C (97.0 F)	33 of 100 (Routine)
Madison Wb City	United States	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)
Quantambone	Australia	Record daily precipitation	30.7 mm (1.2 in)	32 of 100 (Routine)
Kanigiri	India	Record daily precipitation	40.4 mm (1.6 in)	32 of 100 (Routine)
Ulan-Ude	Russia	Record high minimum temperature	17.9 C (64.2 F)	32 of 100 (Routine)
Middletown 4 W	United States	Record high maximum temperature	32.8 C (91.0 F)	32 of 100 (Routine)
Voravakal(Varaka)	India	Record daily precipitation	57.2 mm (2.3 in)	31 of 100 (Routine)
Gaylord	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Saint Johns	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Baltimore Customs House	United States	Record high minimum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	23.3 C (73.9 F)	30 of 100 (Routine)
Vredenburg (Pol)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	30 of 100 (Routine)
Oakland	United States	Record low minimum temperature	8.9 C (48.0 F)	30 of 100 (Routine)
Lucknow	Canada	Record high minimum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Nigriting	India	Record daily precipitation	77.0 mm (3.0 in)	29 of 100 (Routine)
Jokkmokk	Sweden	Record high minimum temperature	13.0 C (55.4 F)	29 of 100 (Routine)
Eagle Harbor	United States	Record high minimum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Attabari	India	Record daily precipitation	114.3 mm (4.5 in)	28 of 100 (Routine)
Bansgaon	India	Record daily precipitation	110.5 mm (4.4 in)	28 of 100 (Routine)
Middletown 4 W	United States	Record high minimum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Greenville 2 NNE	United States	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Ludington 4 SE	United States	Record high maximum temperature	32.8 C (91.0 F)	28 of 100 (Routine)
Paterson	United States	Record high minimum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Watertown	United States	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Racine Wwtp	United States	Record high maximum temperature	38.3 C (100.9 F)	28 of 100 (Routine)
Bancroft	Canada	Record high minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Pakribarwan	India	Record daily precipitation	58.9 mm (2.3 in)	27 of 100 (Routine)

Counts by Type and Timescale

885 records

Records set or tied on 21 August 1955 by type: Highest daily maximum 341, Lowest daily maximum 12, Highest daily minimum 195, Lowest daily minimum 42, Heaviest daily rainfall 295.

Records on 21 August 1955 by type
Record type	Records
Highest daily maximum	341
Lowest daily maximum	12
Highest daily minimum	195
Lowest daily minimum	42
Heaviest daily rainfall	295
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1955 by timescale: all-time 3, monthly 30, daily 852.

How Much Records Were Beaten By

661 broken records

Margins by which the 661 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 79.7. Ties are not counted.

Top 20 by Significance

21 August 1955

Top 20 records on 21 August 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1955	Dublin Phoenix Park, IE	daily rain	71.3 mm (2.8 in)	49.7 mm (2.0 in)	65 years	67 of 100 (Major)
21 August 1955	Newton Rigg, GB	daily rain	42.4 mm (1.7 in)	25.4 mm (1.0 in)	41 years	57 of 100 (Notable)
21 August 1955	Wokha, IN	all-time rain	224.5 mm (8.8 in)	34.8 mm (1.4 in)	28 years	48 of 100 (Notable)
21 August 1955	Ellore, IN	daily rain	142.2 mm (5.6 in)	79.7 mm (3.1 in)	4 years	46 of 100 (Notable)
21 August 1955	Kurnool, IN	monthly rain	121.9 mm (4.8 in)	34.3 mm (1.4 in)	0 years	46 of 100 (Notable)
21 August 1955	Apache Powder Company, US	daily rain	52.1 mm (2.1 in)	37.4 mm (1.5 in)	8 years	45 of 100 (Notable)
21 August 1955	Podili(Podile), IN	daily rain	48.5 mm (1.9 in)	35.8 mm (1.4 in)	37 years	43 of 100 (Notable)
21 August 1955	Pet Jorhat, IN	daily rain	116.8 mm (4.6 in)	78.7 mm (3.1 in)	4 years	43 of 100 (Notable)
21 August 1955	Bluewater 3 WSW, US	daily rain	32.5 mm (1.3 in)	21.1 mm (0.8 in)	22 years	43 of 100 (Notable)
21 August 1955	The Towers, ZA	daily rain	34.5 mm (1.4 in)	18.2 mm (0.7 in)	42 years	42 of 100 (Notable)
21 August 1955	Hopefield (Pol), ZA	daily rain	26.4 mm (1.0 in)	17.0 mm (0.7 in)	42 years	41 of 100 (Notable)
21 August 1955	Jetsonville ( Muskfield ), AU	daily rain	39.4 mm (1.6 in)	25.2 mm (1.0 in)	12 years	39 of 100 (Notable)
21 August 1955	Simcoe, CA	daily high max	32.8 C (91.0 F)	2.2 C (4.0 F)	82 years	39 of 100 (Notable)
21 August 1955	Paarl (Tnk), ZA	daily rain	54.7 mm (2.2 in)	26.5 mm (1.0 in)	42 years	39 of 100 (Notable)
21 August 1955	Alpine, US	daily rain	57.7 mm (2.3 in)	35.6 mm (1.4 in)	12 years	39 of 100 (Notable)
21 August 1955	Harnosand, SE	daily high min	16.5 C (61.7 F)	3.0 C (5.4 F)	72 years	38 of 100 (Notable)
21 August 1955	Umea, SE	daily high min	17.6 C (63.7 F)	3.6 C (6.5 F)	72 years	38 of 100 (Notable)
21 August 1955	Ft Gaines, US	daily rain	67.1 mm (2.6 in)	45.8 mm (1.8 in)	8 years	38 of 100 (Notable)
21 August 1955	Brantford, CA	daily high max	34.4 C (93.9 F)	2.2 C (4.0 F)	77 years	36 of 100 (Notable)
21 August 1955	Belleville, CA	daily high max	32.8 C (91.0 F)	1.1 C (2.0 F)	82 years	36 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

1800 to 1955

Records set or tied on this calendar date in each year from 1800 to 1955. 1955 had 885 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1955-08-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 10	579
10 to 20	53
20 to 30	16
30 to 40	8
40 to 50	3
50 to 60	0
60 to 70	0
70 to 80	2