Weather Records on 20 April 1929

182 weather records were set or tied worldwide on 20 April 1929. Highest significance: Rockford, US.

Key Facts for 20 April 1929

On 20 April 1929, 182 weather records were set or tied at long-record stations worldwide.
37 were record highs and 38 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 170 daily.
Rockford set a daily record precipitation of 62.5 mm (2.5 in) on 20 April 1929.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 464 records.

Record Map

182 stations

182 station records on 20 April 1929 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1929: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rockford	United States	Record daily precipitation	62.5 mm (2.5 in)	52 of 100 (Notable)
Wray	United States	Record daily precipitation	55.9 mm (2.2 in)	47 of 100 (Notable)
Anthony	United States	Record daily precipitation	64.5 mm (2.5 in)	46 of 100 (Notable)
Toledo Blade	United States	Record daily precipitation	72.4 mm (2.9 in)	41 of 100 (Notable)
Eureka 1E	United States	Record daily precipitation	62.5 mm (2.5 in)	40 of 100 (Notable)
Hillsdale	United States	Record daily precipitation	74.9 mm (2.9 in)	40 of 100 (Notable)
Independence	United States	Record daily precipitation	69.9 mm (2.8 in)	38 of 100 (Notable)
Pelee Island	Canada	Record daily precipitation	52.1 mm (2.1 in)	37 of 100 (Notable)
Le Claire	United States	Record daily precipitation	51.6 mm (2.0 in)	37 of 100 (Notable)
Racine Wwtp	United States	Record daily precipitation	38.1 mm (1.5 in)	36 of 100 (Notable)
Yuma	United States	Record daily precipitation	41.9 mm (1.6 in)	35 of 100 (Notable)
Lawrence	United States	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
West Berne	United States	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Watford	Canada	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Greeley	United States	Record daily precipitation	30.5 mm (1.2 in)	33 of 100 (Routine)
Wayne	United States	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Ft Morgan	United States	Record daily precipitation	43.7 mm (1.7 in)	32 of 100 (Routine)
Iowa City	United States	Record daily precipitation	43.7 mm (1.7 in)	32 of 100 (Routine)
Owosso Wwtp	United States	Record daily precipitation	39.9 mm (1.6 in)	32 of 100 (Routine)
St Louis Eads Brg	United States	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Sedan	United States	Record daily precipitation	52.6 mm (2.1 in)	31 of 100 (Routine)
Provincetown 3 NW	United States	Record daily precipitation	40.6 mm (1.6 in)	31 of 100 (Routine)
Nemours (Ghazaouet)	Algeria	Record high maximum temperature	32.0 C (89.6 F)	30 of 100 (Routine)
Feodosiia	Ukraine	Record low minimum temperature	-2.3 C (27.9 F)	30 of 100 (Routine)
Ft Collins	United States	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record daily precipitation	45.5 mm (1.8 in)	30 of 100 (Routine)
St Joseph	United States	Record daily precipitation	38.1 mm (1.5 in)	28 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high maximum temperature	32.0 C (89.6 F)	27 of 100 (Routine)
Kalamazoo State Hospital	United States	Record daily precipitation	36.8 mm (1.4 in)	27 of 100 (Routine)
Arhangelsk	Russia	Record low minimum temperature	-20.3 C (-4.5 F)	26 of 100 (Routine)
Harnosand	Sweden	Record low minimum temperature	-9.5 C (14.9 F)	26 of 100 (Routine)
Ashton 1N	United States	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Aurora Water	United States	Record daily precipitation	47.2 mm (1.9 in)	26 of 100 (Routine)
Adrian 2 NNE	United States	Record daily precipitation	54.1 mm (2.1 in)	26 of 100 (Routine)
Ann Arbor U of Mich	United States	Record daily precipitation	45.2 mm (1.8 in)	26 of 100 (Routine)
Fort National	Algeria	Record high maximum temperature	28.0 C (82.4 F)	24 of 100 (Routine)
Westminster	Canada	Record daily precipitation	36.8 mm (1.4 in)	24 of 100 (Routine)
Galva	United States	Record daily precipitation	61.2 mm (2.4 in)	24 of 100 (Routine)
Sycamore	United States	Record daily precipitation	50.8 mm (2.0 in)	24 of 100 (Routine)
Winfield 3NE	United States	Record daily precipitation	45.0 mm (1.8 in)	24 of 100 (Routine)
Bjuraker	Sweden	Record low minimum temperature	-9.7 C (14.5 F)	23 of 100 (Routine)
Atchison	United States	Record daily precipitation	36.3 mm (1.4 in)	23 of 100 (Routine)
Newton	United States	Record daily precipitation	27.9 mm (1.1 in)	23 of 100 (Routine)
Neosho	United States	Record daily precipitation	57.7 mm (2.3 in)	23 of 100 (Routine)
Newkirk 5NE	United States	Record daily precipitation	39.9 mm (1.6 in)	23 of 100 (Routine)
Tulsa	United States	Record daily precipitation	83.8 mm (3.3 in)	23 of 100 (Routine)
Sidi-Bel-Abbes	Algeria	Record high minimum temperature	17.0 C (62.6 F)	22 of 100 (Routine)
Trenton	United States	Record daily precipitation	52.6 mm (2.1 in)	22 of 100 (Routine)
Port Dover	Canada	Record daily precipitation	32.5 mm (1.3 in)	21 of 100 (Routine)
Ostrov Sosnovez	Russia	Record low minimum temperature	-19.1 C (-2.4 F)	21 of 100 (Routine)
Karesuando	Sweden	Record low minimum temperature	-27.5 C (-17.5 F)	21 of 100 (Routine)
Cheyenne Wells 2NE	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
St Joseph	United States	Record daily precipitation	42.9 mm (1.7 in)	21 of 100 (Routine)
Nashua 2 NNW	United States	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Ithaca Cornell UNIV	United States	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Fitchburg 4 SE	United States	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Gravette	United States	Record daily precipitation	42.7 mm (1.7 in)	20 of 100 (Routine)
Guthrie Ctr	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Colby	United States	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
New Orleans Audubon	United States	Record daily precipitation	44.5 mm (1.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

182 records

Records set or tied on 20 April 1929 by type: Highest daily maximum 8, Lowest daily maximum 14, Highest daily minimum 29, Lowest daily minimum 24, Heaviest daily rainfall 105, Heaviest daily snowfall 2.

Records on 20 April 1929 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	14
Highest daily minimum	29
Lowest daily minimum	24
Heaviest daily rainfall	105
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 20 April 1929 by timescale: all-time 0, monthly 12, daily 170.

How Much Records Were Beaten By

158 broken records

Margins by which the 158 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 52.6. Ties are not counted.

Top 20 by Significance

20 April 1929

Top 20 records on 20 April 1929 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1929	Rockford, US	daily rain	62.5 mm (2.5 in)	37.9 mm (1.5 in)	32 years	52 of 100 (Notable)
20 April 1929	Wray, US	daily rain	55.9 mm (2.2 in)	43.2 mm (1.7 in)	24 years	47 of 100 (Notable)
20 April 1929	Anthony, US	daily rain	64.5 mm (2.5 in)	52.6 mm (2.1 in)	11 years	46 of 100 (Notable)
20 April 1929	Toledo Blade, US	monthly rain	72.4 mm (2.9 in)	15.5 mm (0.6 in)	18 years	41 of 100 (Notable)
20 April 1929	Eureka 1E, US	daily rain	62.5 mm (2.5 in)	38.6 mm (1.5 in)	28 years	40 of 100 (Notable)
20 April 1929	Hillsdale, US	monthly rain	74.9 mm (2.9 in)	20.0 mm (0.8 in)	10 years	40 of 100 (Notable)
20 April 1929	Independence, US	daily rain	69.9 mm (2.8 in)	34.3 mm (1.4 in)	29 years	38 of 100 (Notable)
20 April 1929	Pelee Island, CA	daily rain	52.1 mm (2.1 in)	34.1 mm (1.3 in)	8 years	37 of 100 (Notable)
20 April 1929	Le Claire, US	daily rain	51.6 mm (2.0 in)	24.4 mm (1.0 in)	24 years	37 of 100 (Notable)
20 April 1929	Racine Wwtp, US	daily rain	38.1 mm (1.5 in)	24.9 mm (1.0 in)	8 years	36 of 100 (Notable)
20 April 1929	Yuma, US	daily rain	41.9 mm (1.6 in)	26.7 mm (1.1 in)	24 years	35 of 100 (Notable)
20 April 1929	Lawrence, US	daily rain	43.9 mm (1.7 in)	29.2 mm (1.1 in)	6 years	35 of 100 (Notable)
20 April 1929	West Berne, US	daily rain	44.5 mm (1.8 in)	24.4 mm (1.0 in)	15 years	34 of 100 (Routine)
20 April 1929	Watford, CA	daily rain	38.1 mm (1.5 in)	16.3 mm (0.6 in)	24 years	33 of 100 (Routine)
20 April 1929	Greeley, US	daily rain	30.5 mm (1.2 in)	24.1 mm (0.9 in)	16 years	33 of 100 (Routine)
20 April 1929	Wayne, US	daily rain	44.5 mm (1.8 in)	22.4 mm (0.9 in)	19 years	33 of 100 (Routine)
20 April 1929	Ft Morgan, US	daily rain	43.7 mm (1.7 in)	37.1 mm (1.5 in)	2 years	32 of 100 (Routine)
20 April 1929	Iowa City, US	daily rain	43.7 mm (1.7 in)	18.8 mm (0.7 in)	35 years	32 of 100 (Routine)
20 April 1929	Owosso Wwtp, US	daily rain	39.9 mm (1.6 in)	23.6 mm (0.9 in)	2 years	32 of 100 (Routine)
20 April 1929	St Louis Eads Brg, US	daily rain	40.6 mm (1.6 in)	24.3 mm (1.0 in)	24 years	32 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 1929

Records set or tied on this calendar date in each year from 1807 to 1929. 1929 had 182 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 1929-04-20: 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 10	102
10 to 20	27
20 to 30	21
30 to 40	6
40 to 50	1
50 to 60	1