Weather Records on 21 May 1955

507 weather records were set or tied worldwide on 21 May 1955. Highest significance: Rajahmundry, IN.

Key Facts for 21 May 1955

On 21 May 1955, 507 weather records were set or tied at long-record stations worldwide.
183 were record highs and 92 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 12 monthly and 491 daily.
Rajahmundry set a monthly record daily precipitation of 160.3 mm (6.3 in) on 21 May 1955.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

507 stations

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

Weather records on 21 May 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rajahmundry	India	Record daily precipitation	160.3 mm (6.3 in)	64 of 100 (Major)
Kovvur	India	Record daily precipitation	162.6 mm (6.4 in)	64 of 100 (Major)
Chitradurga	India	Record daily precipitation	181.6 mm (7.1 in)	62 of 100 (Major)
Belthangady	India	Record daily precipitation	185.9 mm (7.3 in)	56 of 100 (Notable)
Palghat	India	Record daily precipitation	121.7 mm (4.8 in)	56 of 100 (Notable)
Munnar	India	Record daily precipitation	174.0 mm (6.9 in)	55 of 100 (Notable)
Thirthahalli	India	Record daily precipitation	104.1 mm (4.1 in)	54 of 100 (Notable)
Kolaghat	India	Record daily precipitation	127.0 mm (5.0 in)	52 of 100 (Notable)
Honnali	India	Record daily precipitation	139.7 mm (5.5 in)	51 of 100 (Notable)
Demagiri	India	Record daily precipitation	129.5 mm (5.1 in)	51 of 100 (Notable)
Wai	India	Record daily precipitation	40.9 mm (1.6 in)	50 of 100 (Notable)
Koppa(Balgadi)	India	Record daily precipitation	200.7 mm (7.9 in)	49 of 100 (Notable)
Baindur	India	Record daily precipitation	346.5 mm (13.6 in)	49 of 100 (Notable)
Raichur	India	Record daily precipitation	69.9 mm (2.8 in)	49 of 100 (Notable)
Tarikere	India	Record daily precipitation	104.6 mm (4.1 in)	48 of 100 (Notable)
Mudigere	India	Record daily precipitation	125.7 mm (4.9 in)	48 of 100 (Notable)
Kumta	India	Record daily precipitation	150.9 mm (5.9 in)	48 of 100 (Notable)
Whitewood Post Office	Australia	Record daily precipitation	55.1 mm (2.2 in)	46 of 100 (Notable)
Challakire	India	Record daily precipitation	130.0 mm (5.1 in)	45 of 100 (Notable)
Bambaroo	Australia	Record daily precipitation	50.3 mm (2.0 in)	44 of 100 (Notable)
G. Udayagiri	India	Record daily precipitation	97.5 mm (3.8 in)	44 of 100 (Notable)
Jagalur	India	Record daily precipitation	141.0 mm (5.6 in)	43 of 100 (Notable)
Hosadurga	India	Record daily precipitation	142.2 mm (5.6 in)	43 of 100 (Notable)
Devikulam	India	Record daily precipitation	134.6 mm (5.3 in)	43 of 100 (Notable)
Gudalur	India	Record daily precipitation	73.2 mm (2.9 in)	43 of 100 (Notable)
Cherapalaseri	India	Record daily precipitation	117.3 mm (4.6 in)	42 of 100 (Notable)
Malkangiri	India	Record daily precipitation	48.3 mm (1.9 in)	42 of 100 (Notable)
Mayfield 2 S	United States	Record daily precipitation	48.0 mm (1.9 in)	42 of 100 (Notable)
Namarjan	India	Record daily precipitation	86.4 mm (3.4 in)	40 of 100 (Notable)
Burrundie Railway Station	Australia	Record daily precipitation	27.2 mm (1.1 in)	39 of 100 (Notable)
Putbus	Germany	Record low minimum temperature	1.4 C (34.5 F)	39 of 100 (Notable)
Nilambur	India	Record daily precipitation	111.8 mm (4.4 in)	39 of 100 (Notable)
Jokkmokk	Sweden	Record snow depth	39.0 cm (15.4 in)	39 of 100 (Notable)
Louisville	United States	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Santhanpara	India	Record daily precipitation	82.6 mm (3.3 in)	37 of 100 (Notable)
Channagiri	India	Record daily precipitation	152.4 mm (6.0 in)	36 of 100 (Notable)
Kulasekarapatnam	India	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Sfax El-Maou	Tunisia	Record high maximum temperature	38.7 C (101.7 F)	36 of 100 (Notable)
Birch Tree	United States	Record daily precipitation	64.5 mm (2.5 in)	35 of 100 (Notable)
Gokak	India	Record daily precipitation	91.4 mm (3.6 in)	34 of 100 (Routine)
Sringeri	India	Record daily precipitation	237.7 mm (9.4 in)	34 of 100 (Routine)
Stuttgart	United States	Record daily precipitation	80.8 mm (3.2 in)	34 of 100 (Routine)
Big Sandy	United States	Record daily precipitation	27.4 mm (1.1 in)	34 of 100 (Routine)
Guntur	India	Record daily precipitation	71.1 mm (2.8 in)	33 of 100 (Routine)
Kanas	India	Record daily precipitation	54.6 mm (2.1 in)	33 of 100 (Routine)
Hukeri	India	Record daily precipitation	119.6 mm (4.7 in)	32 of 100 (Routine)
Hornindal	Norway	Record snow depth	28.0 cm (11.0 in)	32 of 100 (Routine)
Corning	United States	Record daily precipitation	83.8 mm (3.3 in)	32 of 100 (Routine)
Clarksdale	United States	Record daily precipitation	66.5 mm (2.6 in)	32 of 100 (Routine)
Chittur	India	Record daily precipitation	83.6 mm (3.3 in)	31 of 100 (Routine)
Alattur	India	Record daily precipitation	75.2 mm (3.0 in)	31 of 100 (Routine)
Arcadia	United States	Record daily precipitation	35.1 mm (1.4 in)	31 of 100 (Routine)
Eufaula 6 SSW	United States	Record daily precipitation	72.1 mm (2.8 in)	31 of 100 (Routine)
Regensburg	Germany	Record low minimum temperature	-1.7 C (28.9 F)	30 of 100 (Routine)
Cuttack	India	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Arkansas City	United States	Record daily precipitation	54.6 mm (2.1 in)	30 of 100 (Routine)
Leakesville 6 WSW	United States	Record daily precipitation	65.0 mm (2.6 in)	30 of 100 (Routine)
Scott	United States	Record daily precipitation	48.3 mm (1.9 in)	30 of 100 (Routine)
Bamberg	Germany	Record low minimum temperature	-0.4 C (31.3 F)	29 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record low minimum temperature	-0.6 C (30.9 F)	29 of 100 (Routine)

Counts by Type and Timescale

507 records

Records set or tied on 21 May 1955 by type: Highest daily maximum 103, Lowest daily maximum 43, Highest daily minimum 80, Lowest daily minimum 49, Heaviest daily rainfall 219, Heaviest daily snowfall 5, Deepest snow cover 8.

Records on 21 May 1955 by type
Record type	Records
Highest daily maximum	103
Lowest daily maximum	43
Highest daily minimum	80
Lowest daily minimum	49
Heaviest daily rainfall	219
Heaviest daily snowfall	5
Deepest snow cover	8

Records on 21 May 1955 by timescale: all-time 4, monthly 12, daily 491.

How Much Records Were Beaten By

418 broken records

Margins by which the 418 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 320.0. Ties are not counted.

Top 20 by Significance

21 May 1955

Top 20 records on 21 May 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 May 1955	Rajahmundry, IN	monthly rain	160.3 mm (6.3 in)	87.1 mm (3.4 in)	32 years	64 of 100 (Major)
21 May 1955	Kovvur, IN	monthly rain	162.6 mm (6.4 in)	67.6 mm (2.7 in)	32 years	64 of 100 (Major)
21 May 1955	Chitradurga, IN	all-time rain	181.6 mm (7.1 in)	49.5 mm (1.9 in)	24 years	62 of 100 (Major)
21 May 1955	Belthangady, IN	daily rain	185.9 mm (7.3 in)	86.8 mm (3.4 in)	36 years	56 of 100 (Notable)
21 May 1955	Palghat, IN	daily rain	121.7 mm (4.8 in)	93.8 mm (3.7 in)	36 years	56 of 100 (Notable)
21 May 1955	Munnar, IN	daily rain	174.0 mm (6.9 in)	118.1 mm (4.6 in)	36 years	55 of 100 (Notable)
21 May 1955	Thirthahalli, IN	daily rain	104.1 mm (4.1 in)	65.5 mm (2.6 in)	30 years	54 of 100 (Notable)
21 May 1955	Kolaghat, IN	daily rain	127.0 mm (5.0 in)	98.6 mm (3.9 in)	32 years	52 of 100 (Notable)
21 May 1955	Honnali, IN	monthly rain	139.7 mm (5.5 in)	57.4 mm (2.3 in)	5 years	51 of 100 (Notable)
21 May 1955	Demagiri, IN	daily rain	129.5 mm (5.1 in)	78.7 mm (3.1 in)	42 years	51 of 100 (Notable)
21 May 1955	Wai, IN	daily rain	40.9 mm (1.6 in)	27.7 mm (1.1 in)	49 years	50 of 100 (Notable)
21 May 1955	Koppa(Balgadi), IN	daily rain	200.7 mm (7.9 in)	147.4 mm (5.8 in)	14 years	49 of 100 (Notable)
21 May 1955	Baindur, IN	all-time rain	346.5 mm (13.6 in)	62.5 mm (2.5 in)	3 years	49 of 100 (Notable)
21 May 1955	Raichur, IN	daily rain	69.9 mm (2.8 in)	55.7 mm (2.2 in)	14 years	49 of 100 (Notable)
21 May 1955	Tarikere, IN	monthly rain	104.6 mm (4.1 in)	25.9 mm (1.0 in)	50 years	48 of 100 (Notable)
21 May 1955	Mudigere, IN	daily rain	125.7 mm (4.9 in)	38.1 mm (1.5 in)	52 years	48 of 100 (Notable)
21 May 1955	Kumta, IN	daily rain	150.9 mm (5.9 in)	107.0 mm (4.2 in)	12 years	48 of 100 (Notable)
21 May 1955	Whitewood Post Office, AU	daily rain	55.1 mm (2.2 in)	39.1 mm (1.5 in)	10 years	46 of 100 (Notable)
21 May 1955	Challakire, IN	monthly rain	130.0 mm (5.1 in)	36.0 mm (1.4 in)	23 years	45 of 100 (Notable)
21 May 1955	Bambaroo, AU	daily rain	50.3 mm (2.0 in)	42.4 mm (1.7 in)	4 years	44 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 1955

Records set or tied on this calendar date in each year from 1793 to 1955. 1955 had 507 records.

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

Records on 05-21 in each year
Year	Records
1793	1
1795	1
1811	1
1837	2
1842	1
1847	2
1854	1
1857	1
1858	1
1865	1
1866	1
1870	2
1875	1
1876	1
1880	2
1882	1
1885	1
1886	2
1887	3
1889	5
1890	3
1891	6
1892	1
1893	1
1894	4
1895	4
1896	5
1897	2
1898	1
1899	5
1900	1
1901	3
1902	4
1903	26
1904	8
1905	7
1906	12
1907	36
1908	13
1909	13
1910	14
1911	87
1912	24
1913	13
1914	26
1915	24
1916	13
1917	76
1918	51
1919	170
1920	39
1921	158
1922	39
1923	125
1924	148
1925	250
1926	221
1927	207
1928	173
1929	247
1930	133
1931	488
1932	343
1933	290
1934	590
1935	190
1936	328
1937	227
1938	348
1939	355
1940	456
1941	525
1942	482
1943	463
1944	310
1945	515
1946	324
1947	485
1948	312
1949	593
1950	403
1951	271
1952	385
1953	501
1954	961
1955	507
1956	409
1957	709
1958	511
1959	684
1960	615
1961	306
1962	553
1963	598
1964	788
1965	238
1966	296
1967	1,022
1968	549
1969	832
1970	449
1971	536
1972	557
1973	493
1974	847
1975	1,160
1976	393
1977	756
1978	575
1979	787
1980	857
1981	1,550
1982	599
1983	1,106
1984	950
1985	610
1986	908
1987	1,242
1988	819
1989	671
1990	947
1991	1,065
1992	1,143
1993	1,197
1994	656
1995	749
1996	1,461
1997	953
1998	1,200
1999	544
2000	897
2001	1,187
2002	2,048
2003	807
2004	898
2005	1,020
2006	810
2007	894
2008	740
2009	1,315
2010	962
2011	959
2012	848
2013	884
2014	522
2015	956
2016	567
2017	780
2018	525
2019	1,668
2020	707
2021	1,131
2022	1,512
2023	794
2024	751
2025	776
2026	356

Download the Data

Data for records on 1955-05-21: 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 50	395
50 to 100	17
100 to 150	4
150 to 200	0
200 to 250	0
250 to 300	1
300 to 350	1