Weather Records on 20 April 1950

329 weather records were set or tied worldwide on 20 April 1950. Highest significance: Tanana AP, US.

Key Facts for 20 April 1950

On 20 April 1950, 329 weather records were set or tied at long-record stations worldwide.
107 were record highs and 116 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 319 daily.
Tanana AP set a monthly record daily precipitation of 26.9 mm (1.1 in) on 20 April 1950.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 463 records.

Record Map

329 stations

329 station records on 20 April 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tanana AP	United States	Record daily precipitation	26.9 mm (1.1 in)	54 of 100 (Notable)
Patu	Brazil	Record daily precipitation	150.0 mm (5.9 in)	52 of 100 (Notable)
Kawainui Lower 193	United States	Record daily precipitation	334.8 mm (13.2 in)	49 of 100 (Notable)
Beatrix	South Africa	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
Barreiras	Brazil	Record daily precipitation	62.0 mm (2.4 in)	44 of 100 (Notable)
Donnacona	Canada	Record daily precipitation	54.4 mm (2.1 in)	43 of 100 (Notable)
Quebec	Canada	Record daily precipitation	26.7 mm (1.1 in)	38 of 100 (Notable)
St Andrews	Canada	Record daily precipitation	45.7 mm (1.8 in)	38 of 100 (Notable)
Jervis Bay (Point Perpendicula	Australia	Record daily precipitation	81.8 mm (3.2 in)	33 of 100 (Routine)
Amherst	United States	Record daily precipitation	42.4 mm (1.7 in)	33 of 100 (Routine)
Franklin	United States	Record daily precipitation	45.5 mm (1.8 in)	33 of 100 (Routine)
Salgueiro	Brazil	Record daily precipitation	62.0 mm (2.4 in)	32 of 100 (Routine)
Rumford	United States	Record daily precipitation	51.6 mm (2.0 in)	32 of 100 (Routine)
Worcester	United States	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Lennoxville	Canada	Record daily precipitation	36.3 mm (1.4 in)	31 of 100 (Routine)
Honokane 181.1	United States	Record daily precipitation	137.7 mm (5.4 in)	31 of 100 (Routine)
Mount Wilson (Nooroo)	Australia	Record daily precipitation	41.4 mm (1.6 in)	30 of 100 (Routine)
Cabrobo	Brazil	Record daily precipitation	25.1 mm (1.0 in)	30 of 100 (Routine)
Helwan (Cairo)	Egypt	Record high minimum temperature	28.0 C (82.4 F)	30 of 100 (Routine)
Mosman (Bapaume Road)	Australia	Record daily precipitation	98.3 mm (3.9 in)	29 of 100 (Routine)
Farias Brito	Brazil	Record daily precipitation	62.8 mm (2.5 in)	29 of 100 (Routine)
Keene	United States	Record daily precipitation	35.1 mm (1.4 in)	29 of 100 (Routine)
Manchester	United States	Record daily precipitation	49.0 mm (1.9 in)	29 of 100 (Routine)
Plymouth	United States	Record daily precipitation	39.4 mm (1.6 in)	29 of 100 (Routine)
Lampasas	United States	Record low maximum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Riva	Italy	Record low maximum temperature	11.0 C (51.8 F)	28 of 100 (Routine)
Buzau	Romania	Record high minimum temperature	14.1 C (57.4 F)	28 of 100 (Routine)
Saint Johnsbury	United States	Record daily precipitation	27.4 mm (1.1 in)	28 of 100 (Routine)
Honomu Mauka 138	United States	Record daily precipitation	109.0 mm (4.3 in)	28 of 100 (Routine)
Minsk	Belarus	Record high minimum temperature	9.5 C (49.1 F)	27 of 100 (Routine)
Simferopol	Ukraine	Record high minimum temperature	13.3 C (55.9 F)	26 of 100 (Routine)
Chazy	United States	Record daily precipitation	29.7 mm (1.2 in)	25 of 100 (Routine)
Tahlee (Carrington (Church St)	Australia	Record daily precipitation	59.7 mm (2.4 in)	24 of 100 (Routine)
Andarai	Brazil	Record daily precipitation	58.2 mm (2.3 in)	24 of 100 (Routine)
Dhakuakhana	India	Record daily precipitation	53.3 mm (2.1 in)	24 of 100 (Routine)
Crookhaven Heads	Australia	Record daily precipitation	52.8 mm (2.1 in)	23 of 100 (Routine)
Port Said	Egypt	Record high minimum temperature	22.0 C (71.6 F)	23 of 100 (Routine)
Tg Jiu	Romania	Record high minimum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record low minimum temperature	-14.9 C (5.2 F)	23 of 100 (Routine)
Deer Creek Ph	United States	Record high maximum temperature	31.1 C (88.0 F)	23 of 100 (Routine)
Julesburg	United States	Record low minimum temperature	-6.7 C (19.9 F)	23 of 100 (Routine)
Tipton	United States	Record low minimum temperature	-2.8 C (27.0 F)	23 of 100 (Routine)
Bridgeport	United States	Record low minimum temperature	-10.6 C (12.9 F)	23 of 100 (Routine)
Hanover	United States	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Little Falls City Rsch	United States	Record daily precipitation	26.9 mm (1.1 in)	23 of 100 (Routine)
Waterbury	United States	Record daily precipitation	34.3 mm (1.4 in)	22 of 100 (Routine)
North Bridgton	United States	Record daily precipitation	40.4 mm (1.6 in)	22 of 100 (Routine)
Turners Falls	United States	Record daily precipitation	38.9 mm (1.5 in)	22 of 100 (Routine)
Le Roy	United States	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Waxahachie	United States	Record low maximum temperature	10.6 C (51.1 F)	22 of 100 (Routine)
Enosburg Falls	United States	Record daily precipitation	27.4 mm (1.1 in)	22 of 100 (Routine)
Papaikou 144.1	United States	Record daily precipitation	82.8 mm (3.3 in)	22 of 100 (Routine)
Moa Island Mission	Australia	Record daily precipitation	71.4 mm (2.8 in)	21 of 100 (Routine)
Jucurutu	Brazil	Record daily precipitation	34.0 mm (1.3 in)	21 of 100 (Routine)
Cairo Ezbekiya	Egypt	Record high minimum temperature	22.0 C (71.6 F)	21 of 100 (Routine)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	66.5 mm (2.6 in)	21 of 100 (Routine)
Ai-Petri	Ukraine	Record high maximum temperature	19.8 C (67.6 F)	21 of 100 (Routine)
Plainville 4WNW	United States	Record low minimum temperature	-5.0 C (23.0 F)	21 of 100 (Routine)
Trenton Falls	United States	Record daily precipitation	26.4 mm (1.0 in)	21 of 100 (Routine)
Hilo 86A	United States	Record daily precipitation	83.1 mm (3.3 in)	21 of 100 (Routine)

Counts by Type and Timescale

329 records

Records set or tied on 20 April 1950 by type: Highest daily maximum 68, Lowest daily maximum 28, Highest daily minimum 39, Lowest daily minimum 88, Heaviest daily rainfall 102, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 20 April 1950 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	28
Highest daily minimum	39
Lowest daily minimum	88
Heaviest daily rainfall	102
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 20 April 1950 by timescale: all-time 0, monthly 10, daily 319.

How Much Records Were Beaten By

259 broken records

Margins by which the 259 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 98.3. Ties are not counted.

Top 20 by Significance

20 April 1950

Top 20 records on 20 April 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1950	Tanana AP, US	monthly rain	26.9 mm (1.1 in)	14.2 mm (0.6 in)	1 year	54 of 100 (Notable)
20 April 1950	Patu, BR	daily rain	150.0 mm (5.9 in)	83.6 mm (3.3 in)	32 years	52 of 100 (Notable)
20 April 1950	Kawainui Lower 193, US	monthly rain	334.8 mm (13.2 in)	98.3 mm (3.9 in)	19 years	49 of 100 (Notable)
20 April 1950	Beatrix, ZA	daily rain	52.1 mm (2.1 in)	42.4 mm (1.7 in)	27 years	47 of 100 (Notable)
20 April 1950	Barreiras, BR	daily rain	62.0 mm (2.4 in)	51.4 mm (2.0 in)	5 years	44 of 100 (Notable)
20 April 1950	Donnacona, CA	daily rain	54.4 mm (2.1 in)	35.9 mm (1.4 in)	1 year	43 of 100 (Notable)
20 April 1950	Quebec, CA	daily rain	26.7 mm (1.1 in)	7.4 mm (0.29 in)	67 years	38 of 100 (Notable)
20 April 1950	St Andrews, CA	monthly rain	45.7 mm (1.8 in)	0.2 mm (0.01 in)	70 years	38 of 100 (Notable)
20 April 1950	Jervis Bay (Point Perpendicula, AU	daily rain	81.8 mm (3.2 in)	46.7 mm (1.8 in)	11 years	33 of 100 (Routine)
20 April 1950	Amherst, US	daily rain	42.4 mm (1.7 in)	18.0 mm (0.7 in)	36 years	33 of 100 (Routine)
20 April 1950	Franklin, US	daily rain	45.5 mm (1.8 in)	23.1 mm (0.9 in)	16 years	33 of 100 (Routine)
20 April 1950	Salgueiro, BR	daily rain	62.0 mm (2.4 in)	38.5 mm (1.5 in)	16 years	32 of 100 (Routine)
20 April 1950	Rumford, US	daily rain	51.6 mm (2.0 in)	13.2 mm (0.5 in)	45 years	32 of 100 (Routine)
20 April 1950	Worcester, US	daily rain	43.2 mm (1.7 in)	23.9 mm (0.9 in)	9 years	32 of 100 (Routine)
20 April 1950	Lennoxville, CA	monthly rain	36.3 mm (1.4 in)	5.6 mm (0.22 in)	22 years	31 of 100 (Routine)
20 April 1950	Honokane 181.1, US	daily rain	137.7 mm (5.4 in)	60.0 mm (2.4 in)	23 years	31 of 100 (Routine)
20 April 1950	Mount Wilson (Nooroo), AU	daily rain	41.4 mm (1.6 in)	11.9 mm (0.5 in)	56 years	30 of 100 (Routine)
20 April 1950	Cabrobo, BR	daily rain	25.1 mm (1.0 in)	25.1 mm (1.0 in)	39 years	30 of 100 (Routine)
20 April 1950	Helwan (Cairo), EG	daily high min	28.0 C (82.4 F)	6.0 C (10.8 F)	32 years	30 of 100 (Routine)
20 April 1950	Mosman (Bapaume Road), AU	daily rain	98.3 mm (3.9 in)	33.3 mm (1.3 in)	23 years	29 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

1807 to 1950

Records set or tied on this calendar date in each year from 1807 to 1950. 1950 had 329 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 1950-04-20: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	237
20 to 40	15
40 to 60	4
60 to 80	1
80 to 100	2