Weather Records on 20 April 1955

623 weather records were set or tied worldwide on 20 April 1955. Highest significance: Ramanathapuram, IN.

Key Facts for 20 April 1955

On 20 April 1955, 623 weather records were set or tied at long-record stations worldwide.
183 were record highs and 165 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 611 daily.
Ramanathapuram set a daily record precipitation of 97.0 mm (3.8 in) on 20 April 1955.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 461 records.

Record Map

623 stations

623 station records on 20 April 1955 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ramanathapuram	India	Record daily precipitation	97.0 mm (3.8 in)	54 of 100 (Notable)
Ft Bragg 5 N	United States	Record daily precipitation	44.7 mm (1.8 in)	54 of 100 (Notable)
Healdsburg	United States	Record daily precipitation	49.5 mm (1.9 in)	54 of 100 (Notable)
Lower Bucca	Australia	Record daily precipitation	160.8 mm (6.3 in)	53 of 100 (Notable)
Schreiber	Canada	Record daily precipitation	45.2 mm (1.8 in)	53 of 100 (Notable)
Morekulam	India	Record daily precipitation	93.5 mm (3.7 in)	51 of 100 (Notable)
Tirupoondi	India	Record daily precipitation	113.0 mm (4.4 in)	51 of 100 (Notable)
Culbertson	United States	Record daily precipitation	31.2 mm (1.2 in)	51 of 100 (Notable)
Bend	United States	Record daily snowfall	7.6 cm (3.0 in)	48 of 100 (Notable)
Pilger	Canada	Record daily precipitation	65.8 mm (2.6 in)	45 of 100 (Notable)
Kumbhakonam	India	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
Ft Ross	United States	Record daily precipitation	41.1 mm (1.6 in)	45 of 100 (Notable)
Saskatoon Diefenbaker Int'l A	Canada	Record daily snowfall	19.1 cm (7.5 in)	44 of 100 (Notable)
Fort Qu'appelle	Canada	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Cloverdale	United States	Record daily precipitation	42.2 mm (1.7 in)	43 of 100 (Notable)
Tiruvarur	India	Record daily precipitation	83.8 mm (3.3 in)	42 of 100 (Notable)
Upper Lake 2 N	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Beach	United States	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Viking	Canada	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Humboldt	Canada	Record daily snowfall	19.1 cm (7.5 in)	40 of 100 (Notable)
Driefontein	South Africa	Record daily precipitation	25.0 mm (1.0 in)	39 of 100 (Notable)
Watford City	United States	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Theethandathanam	India	Record daily precipitation	58.4 mm (2.3 in)	38 of 100 (Notable)
Monticello	United States	Record daily precipitation	43.4 mm (1.7 in)	38 of 100 (Notable)
Escanaba	United States	Record daily precipitation	25.1 mm (1.0 in)	38 of 100 (Notable)
Prince	Canada	Record daily snowfall	8.4 cm (3.3 in)	37 of 100 (Notable)
Centerville Ph	United States	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Vattaram	India	Record daily precipitation	47.2 mm (1.9 in)	36 of 100 (Notable)
Kodavasal	India	Record daily precipitation	80.0 mm (3.1 in)	36 of 100 (Notable)
Thiruthuraipoond	India	Record daily precipitation	140.2 mm (5.5 in)	36 of 100 (Notable)
Nidamangalam	India	Record daily precipitation	96.8 mm (3.8 in)	36 of 100 (Notable)
McCloud	United States	Record daily precipitation	34.5 mm (1.4 in)	36 of 100 (Notable)
Ubaira (Areia)	Brazil	Record daily precipitation	50.3 mm (2.0 in)	35 of 100 (Notable)
San Diego de la Union	Mexico	Record high minimum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Saint Helena	United States	Record daily precipitation	36.1 mm (1.4 in)	35 of 100 (Notable)
Valangiman	India	Record daily precipitation	85.6 mm (3.4 in)	34 of 100 (Routine)
Vallam	India	Record daily precipitation	28.4 mm (1.1 in)	34 of 100 (Routine)
Petaluma AP	United States	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Papanasam	India	Record daily precipitation	57.7 mm (2.3 in)	33 of 100 (Routine)
Tiruvaiyaru	India	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Warner Springs	United States	Record low minimum temperature	-5.6 C (21.9 F)	33 of 100 (Routine)
Dickinson Exp STN	United States	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Windhoek	Namibia	Record daily precipitation	28.0 mm (1.1 in)	33 of 100 (Routine)
Harris	Canada	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Dunn Ctr 1E	United States	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Fraser Range	Australia	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Smithfield	United States	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Grenora	United States	Record daily precipitation	31.8 mm (1.3 in)	31 of 100 (Routine)
Cornucopia	United States	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Bowdle	United States	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Musgrave	Australia	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Athabasca	Canada	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Pattukkottai	India	Record daily precipitation	36.6 mm (1.4 in)	30 of 100 (Routine)
Santa Rosa	United States	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Vacaville	United States	Record low maximum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Morrison	United States	Record high minimum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Fayette 4 SW	United States	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Sturgeon Bay Exp Farm	United States	Record daily precipitation	27.4 mm (1.1 in)	30 of 100 (Routine)
Francis	Canada	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Pilger	Canada	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)

Counts by Type and Timescale

623 records

Records set or tied on 20 April 1955 by type: Highest daily maximum 27, Lowest daily maximum 91, Highest daily minimum 156, Lowest daily minimum 74, Heaviest daily rainfall 234, Heaviest daily snowfall 37, Deepest snow cover 4.

Records on 20 April 1955 by type
Record type	Records
Highest daily maximum	27
Lowest daily maximum	91
Highest daily minimum	156
Lowest daily minimum	74
Heaviest daily rainfall	234
Heaviest daily snowfall	37
Deepest snow cover	4

Records on 20 April 1955 by timescale: all-time 0, monthly 12, daily 611.

How Much Records Were Beaten By

493 broken records

Margins by which the 493 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

20 April 1955

Top 20 records on 20 April 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1955	Ramanathapuram, IN	daily rain	97.0 mm (3.8 in)	89.9 mm (3.5 in)	30 years	54 of 100 (Notable)
20 April 1955	Ft Bragg 5 N, US	daily rain	44.7 mm (1.8 in)	34.5 mm (1.4 in)	50 years	54 of 100 (Notable)
20 April 1955	Healdsburg, US	daily rain	49.5 mm (1.9 in)	44.2 mm (1.7 in)	54 years	54 of 100 (Notable)
20 April 1955	Lower Bucca, AU	daily rain	160.8 mm (6.3 in)	145.8 mm (5.7 in)	26 years	53 of 100 (Notable)
20 April 1955	Schreiber, CA	daily rain	45.2 mm (1.8 in)	32.5 mm (1.3 in)	24 years	53 of 100 (Notable)
20 April 1955	Morekulam, IN	daily rain	93.5 mm (3.7 in)	68.6 mm (2.7 in)	30 years	51 of 100 (Notable)
20 April 1955	Tirupoondi, IN	daily rain	113.0 mm (4.4 in)	101.6 mm (4.0 in)	20 years	51 of 100 (Notable)
20 April 1955	Culbertson, US	daily rain	31.2 mm (1.2 in)	21.0 mm (0.8 in)	33 years	51 of 100 (Notable)
20 April 1955	Bend, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	52 years	48 of 100 (Notable)
20 April 1955	Pilger, CA	daily rain	65.8 mm (2.6 in)	58.2 mm (2.3 in)	4 years	45 of 100 (Notable)
20 April 1955	Kumbhakonam, IN	daily rain	83.8 mm (3.3 in)	68.1 mm (2.7 in)	49 years	45 of 100 (Notable)
20 April 1955	Ft Ross, US	daily rain	41.1 mm (1.6 in)	38.8 mm (1.5 in)	49 years	45 of 100 (Notable)
20 April 1955	Saskatoon Diefenbaker Int'l A, CA	daily snowfall	19.1 cm (7.5 in)	14.0 cm (5.5 in)	4 years	44 of 100 (Notable)
20 April 1955	Fort Qu'appelle, CA	monthly rain	33.0 mm (1.3 in)	10.1 mm (0.4 in)	18 years	43 of 100 (Notable)
20 April 1955	Cloverdale, US	daily rain	42.2 mm (1.7 in)	37.9 mm (1.5 in)	29 years	43 of 100 (Notable)
20 April 1955	Tiruvarur, IN	daily rain	83.8 mm (3.3 in)	59.7 mm (2.4 in)	34 years	42 of 100 (Notable)
20 April 1955	Upper Lake 2 N, US	daily rain	25.4 mm (1.0 in)	19.0 mm (0.7 in)	54 years	42 of 100 (Notable)
20 April 1955	Beach, US	daily rain	40.6 mm (1.6 in)	19.5 mm (0.8 in)	21 years	42 of 100 (Notable)
20 April 1955	Viking, CA	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	29 years	41 of 100 (Notable)
20 April 1955	Humboldt, CA	daily snowfall	19.1 cm (7.5 in)	13.5 cm (5.3 in)	16 years	40 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

1807 to 1955

Records set or tied on this calendar date in each year from 1807 to 1955. 1955 had 623 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 1955-04-20: 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).

Margin	Records
0 to 50	461
50 to 100	20
100 to 150	11
150 to 200	0
200 to 250	0
250 to 300	1