Weather Records on 19 April 1977

686 weather records were set or tied worldwide on 19 April 1977. Highest significance: Primghar, US.

Key Facts for 19 April 1977

On 19 April 1977, 686 weather records were set or tied at long-record stations worldwide.
314 were record highs and 121 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 22 monthly and 664 daily.
Primghar set a daily record precipitation of 89.4 mm (3.5 in) on 19 April 1977.
Across 161 earlier years (1807 to 2026) the same calendar date averaged 458 records.

Record Map

686 stations

686 station records on 19 April 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 19 April 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Primghar	United States	Record daily precipitation	89.4 mm (3.5 in)	49 of 100 (Notable)
Rio Abaixo (Faz.Cachoeira)	Brazil	Record daily precipitation	87.0 mm (3.4 in)	48 of 100 (Notable)
Casa Grande	Brazil	Record daily precipitation	91.0 mm (3.6 in)	48 of 100 (Notable)
Usina Rio Dos Campos	Brazil	Record daily precipitation	200.7 mm (7.9 in)	47 of 100 (Notable)
Nuuanu Rsch 4 783	United States	Record daily precipitation	132.6 mm (5.2 in)	45 of 100 (Notable)
Elsenburg	South Africa	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Acude Mundo Novo	Brazil	Record daily precipitation	70.3 mm (2.8 in)	42 of 100 (Notable)
Koolau Dam 833	United States	Record daily precipitation	218.4 mm (8.6 in)	40 of 100 (Notable)
Hill City Muni AP	United States	Record daily precipitation	90.2 mm (3.6 in)	40 of 100 (Notable)
Namdalseid	Norway	Record daily precipitation	29.1 mm (1.1 in)	39 of 100 (Notable)
Mason City	United States	Record daily precipitation	38.4 mm (1.5 in)	39 of 100 (Notable)
Manoa Tun 2 716	United States	Record daily precipitation	303.3 mm (11.9 in)	38 of 100 (Notable)
Akron Washington Co AP	United States	Record daily precipitation	29.0 mm (1.1 in)	38 of 100 (Notable)
Guaianas	Brazil	Record daily precipitation	42.0 mm (1.7 in)	36 of 100 (Notable)
Dzaore	Russia	Record daily precipitation	32.8 mm (1.3 in)	35 of 100 (Notable)
Gaylord	United States	Record high maximum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
Bustard Head Lighthouse	Australia	Record daily precipitation	36.0 mm (1.4 in)	34 of 100 (Routine)
Mason City	United States	Record daily precipitation	36.1 mm (1.4 in)	34 of 100 (Routine)
Salto Grande (Cpfl)	Brazil	Record daily precipitation	47.0 mm (1.9 in)	33 of 100 (Routine)
Agua Soca	Brazil	Record daily precipitation	56.0 mm (2.2 in)	33 of 100 (Routine)
Jakutsk	Russia	Record low maximum temperature	-11.8 C (10.8 F)	33 of 100 (Routine)
Frankfort 2NE	United States	Record high minimum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Grenville	United States	Record daily precipitation	43.2 mm (1.7 in)	33 of 100 (Routine)
Monroe 2 SE	United States	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Evangelista de Souza	Brazil	Record daily precipitation	85.1 mm (3.4 in)	32 of 100 (Routine)
New Hampton	United States	Record high minimum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Usina Do Fojo	Brazil	Record daily precipitation	32.9 mm (1.3 in)	30 of 100 (Routine)
Verhojansk	Russia	Record low maximum temperature	-18.5 C (-1.3 F)	30 of 100 (Routine)
Kjahta	Russia	Record high minimum temperature	5.1 C (41.2 F)	30 of 100 (Routine)
Lowestoft	United Kingdom	Record low minimum temperature	-1.5 C (29.3 F)	30 of 100 (Routine)
Whitestown	United States	Record high maximum temperature	30.6 C (87.1 F)	30 of 100 (Routine)
Bethel AP	United States	Record snow depth	81.3 cm (32.0 in)	30 of 100 (Routine)
Caconde	Brazil	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Dixon Wwtp	United States	Record high maximum temperature	31.1 C (88.0 F)	29 of 100 (Routine)
Tipton	United States	Record high maximum temperature	29.4 C (84.9 F)	29 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Wolfe City	United States	Record daily precipitation	65.5 mm (2.6 in)	29 of 100 (Routine)
Pahala 21	United States	Record low maximum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Royal Observatory	South Africa	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Columbus	United States	Record high maximum temperature	31.1 C (88.0 F)	28 of 100 (Routine)
Independence	United States	Record high maximum temperature	29.4 C (84.9 F)	28 of 100 (Routine)
Alma	United States	Record high maximum temperature	28.3 C (82.9 F)	28 of 100 (Routine)
Hillsdale	United States	Record high maximum temperature	28.9 C (84.0 F)	28 of 100 (Routine)
Caruthersville	United States	Record high maximum temperature	31.7 C (89.1 F)	28 of 100 (Routine)
Dulce	United States	Record high minimum temperature	6.1 C (43.0 F)	28 of 100 (Routine)
Mather 3 NW	United States	Record high maximum temperature	28.3 C (82.9 F)	28 of 100 (Routine)
Barrage Angliers	Canada	Record high maximum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Krasnojarsk	Russia	Record high maximum temperature	24.0 C (75.2 F)	27 of 100 (Routine)
Morrison	United States	Record high maximum temperature	30.0 C (86.0 F)	27 of 100 (Routine)
Mt Carroll	United States	Record high maximum temperature	29.4 C (84.9 F)	27 of 100 (Routine)
Watseka Public Works	United States	Record high maximum temperature	28.9 C (84.0 F)	27 of 100 (Routine)
Kettle Falls	United States	Record daily precipitation	45.2 mm (1.8 in)	27 of 100 (Routine)
Montpelier	United States	Record high maximum temperature	29.4 C (84.9 F)	27 of 100 (Routine)
Darlington Wwtp	United States	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Waupaca	United States	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Alger-Dar El Beida	Algeria	Record daily precipitation	28.2 mm (1.1 in)	26 of 100 (Routine)
Mys Yelizavety	Russia	Record daily precipitation	27.7 mm (1.1 in)	26 of 100 (Routine)
Auburn 2 SSE	United States	Record high maximum temperature	27.8 C (82.0 F)	26 of 100 (Routine)
Crawfordsville Pwr Plt	United States	Record high maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

686 records

Records set or tied on 19 April 1977 by type: Highest daily maximum 166, Lowest daily maximum 69, Highest daily minimum 148, Lowest daily minimum 52, Heaviest daily rainfall 244, Heaviest daily snowfall 4, Deepest snow cover 3.

Records on 19 April 1977 by type
Record type	Records
Highest daily maximum	166
Lowest daily maximum	69
Highest daily minimum	148
Lowest daily minimum	52
Heaviest daily rainfall	244
Heaviest daily snowfall	4
Deepest snow cover	3

Records on 19 April 1977 by timescale: all-time 0, monthly 22, daily 664.

How Much Records Were Beaten By

536 broken records

Margins by which the 536 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

19 April 1977

Top 20 records on 19 April 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 April 1977	Primghar, US	daily rain	89.4 mm (3.5 in)	69.6 mm (2.7 in)	4 years	49 of 100 (Notable)
19 April 1977	Rio Abaixo (Faz.Cachoeira), BR	daily rain	87.0 mm (3.4 in)	68.6 mm (2.7 in)	19 years	48 of 100 (Notable)
19 April 1977	Casa Grande, BR	daily rain	91.0 mm (3.6 in)	83.4 mm (3.3 in)	16 years	48 of 100 (Notable)
19 April 1977	Usina Rio Dos Campos, BR	daily rain	200.7 mm (7.9 in)	132.1 mm (5.2 in)	16 years	47 of 100 (Notable)
19 April 1977	Nuuanu Rsch 4 783, US	daily rain	132.6 mm (5.2 in)	78.2 mm (3.1 in)	6 years	45 of 100 (Notable)
19 April 1977	Elsenburg, ZA	daily rain	33.5 mm (1.3 in)	17.5 mm (0.7 in)	54 years	43 of 100 (Notable)
19 April 1977	Acude Mundo Novo, BR	daily rain	70.3 mm (2.8 in)	33.3 mm (1.3 in)	55 years	42 of 100 (Notable)
19 April 1977	Koolau Dam 833, US	monthly rain	218.4 mm (8.6 in)	40.1 mm (1.6 in)	3 years	40 of 100 (Notable)
19 April 1977	Hill City Muni AP, US	monthly rain	90.2 mm (3.6 in)	12.5 mm (0.5 in)	33 years	40 of 100 (Notable)
19 April 1977	Namdalseid, NO	daily rain	29.1 mm (1.1 in)	9.6 mm (0.38 in)	38 years	39 of 100 (Notable)
19 April 1977	Mason City, US	daily rain	38.4 mm (1.5 in)	18.1 mm (0.7 in)	56 years	39 of 100 (Notable)
19 April 1977	Manoa Tun 2 716, US	monthly rain	303.3 mm (11.9 in)	45.2 mm (1.8 in)	18 years	38 of 100 (Notable)
19 April 1977	Akron Washington Co AP, US	daily rain	29.0 mm (1.1 in)	14.0 mm (0.6 in)	35 years	38 of 100 (Notable)
19 April 1977	Guaianas, BR	daily rain	42.0 mm (1.7 in)	29.8 mm (1.2 in)	32 years	36 of 100 (Notable)
19 April 1977	Dzaore, RU	daily rain	32.8 mm (1.3 in)	15.8 mm (0.6 in)	4 years	35 of 100 (Notable)
19 April 1977	Gaylord, US	daily high max	26.7 C (80.1 F)	2.3 C (4.1 F)	80 years	35 of 100 (Notable)
19 April 1977	Shawano 2SSW, US	daily rain	26.2 mm (1.0 in)	4.4 mm (0.17 in)	78 years	35 of 100 (Notable)
19 April 1977	Bustard Head Lighthouse, AU	daily rain	36.0 mm (1.4 in)	2.7 mm (0.11 in)	80 years	34 of 100 (Routine)
19 April 1977	Mason City, US	daily rain	36.1 mm (1.4 in)	8.2 mm (0.32 in)	56 years	34 of 100 (Routine)
19 April 1977	Salto Grande (Cpfl), BR	daily rain	47.0 mm (1.9 in)	29.9 mm (1.2 in)	19 years	33 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 1977

Records set or tied on this calendar date in each year from 1807 to 1977. 1977 had 686 records.

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

Records on 04-19 in each year
Year	Records
1807	2
1814	1
1840	1
1843	1
1845	1
1847	1
1849	2
1851	2
1852	3
1854	1
1860	2
1862	1
1865	3
1868	1
1870	1
1871	2
1873	1
1875	1
1876	1
1877	3
1878	2
1880	1
1881	2
1883	1
1884	2
1886	1
1890	7
1892	3
1893	5
1894	15
1895	6
1896	3
1897	4
1898	6
1899	3
1900	2
1901	4
1902	3
1903	16
1904	31
1905	5
1906	23
1907	27
1908	14
1909	43
1910	37
1911	31
1912	14
1913	29
1914	42
1915	32
1916	26
1917	26
1918	53
1919	25
1920	66
1921	34
1922	46
1923	106
1924	99
1925	208
1926	421
1927	609
1928	404
1929	167
1930	70
1931	164
1932	125
1933	242
1934	291
1935	256
1936	382
1937	569
1938	433
1939	383
1940	361
1941	747
1942	254
1943	588
1944	290
1945	295
1946	501
1947	314
1948	817
1949	384
1950	211
1951	576
1952	450
1953	1,158
1954	342
1955	858
1956	480
1957	576
1958	268
1959	526
1960	216
1961	759
1962	567
1963	510
1964	478
1965	578
1966	1,188
1967	915
1968	612
1969	697
1970	943
1971	721
1972	573
1973	811
1974	593
1975	584
1976	863
1977	686
1978	616
1979	592
1980	844
1981	677
1982	641
1983	2,588
1984	720
1985	1,388
1986	522
1987	1,493
1988	1,100
1989	881
1990	1,502
1991	1,068
1992	594
1993	613
1994	1,117
1995	1,347
1996	751
1997	899
1998	1,049
1999	794
2000	963
2001	1,135
2002	1,612
2003	824
2004	783
2005	851
2006	1,111
2007	759
2008	926
2009	737
2010	600
2011	1,363
2012	660
2013	2,068
2014	436
2015	692
2016	813
2017	485
2018	1,490
2019	856
2020	444
2021	640
2022	1,166
2023	828
2024	790
2025	1,135
2026	460

Download the Data

Data for records on 1977-04-19: 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	529
50 to 100	4
100 to 150	2
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	1