Weather Records on 1 April 1977

524 weather records were set or tied worldwide on 1 April 1977. Highest significance: Crato, BR.

Key Facts for 1 April 1977

On 1 April 1977, 524 weather records were set or tied at long-record stations worldwide.
76 were record highs and 115 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 21 monthly and 503 daily.
Crato set a daily record precipitation of 151.0 mm (5.9 in) on 1 April 1977.
Across 160 earlier years (1803 to 2026) the same calendar date averaged 477 records.

Record Map

524 stations

524 station records on 1 April 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 April 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Crato	Brazil	Record daily precipitation	151.0 mm (5.9 in)	61 of 100 (Major)
Galeana (Smn)	Mexico	Record high minimum temperature	28.9 C (84.0 F)	53 of 100 (Notable)
Lipeck	Russia	Record daily precipitation	26.8 mm (1.1 in)	52 of 100 (Notable)
Sao Joao Do Cariri	Brazil	Record daily precipitation	98.6 mm (3.9 in)	50 of 100 (Notable)
Spearfish	United States	Record snow depth	76.2 cm (30.0 in)	49 of 100 (Notable)
Alexandria	Australia	Record daily precipitation	89.0 mm (3.5 in)	47 of 100 (Notable)
Gillespie	Australia	Record daily precipitation	68.7 mm (2.7 in)	47 of 100 (Notable)
Ogden Pioneer Ph	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Pereque	Brazil	Record daily precipitation	115.0 mm (4.5 in)	43 of 100 (Notable)
Cardston	Canada	Record daily snowfall	36.8 cm (14.5 in)	43 of 100 (Notable)
Rosewood Walloon Rd	Australia	Record daily precipitation	47.6 mm (1.9 in)	39 of 100 (Notable)
Kihei 311	United States	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Spring Bluff Railway STN	Australia	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Enzelberg	South Africa	Record daily precipitation	34.5 mm (1.4 in)	38 of 100 (Notable)
Potgietersrus	South Africa	Record daily precipitation	38.0 mm (1.5 in)	38 of 100 (Notable)
Gulkana AP	United States	Record daily snowfall	15.2 cm (6.0 in)	38 of 100 (Notable)
Juazeiro (Pcd)	Brazil	Record daily precipitation	72.6 mm (2.9 in)	37 of 100 (Notable)
Cardston	Canada	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Seward AP	United States	Record daily precipitation	109.7 mm (4.3 in)	36 of 100 (Notable)
Keg River	Canada	Record daily snowfall	17.8 cm (7.0 in)	35 of 100 (Notable)
Sedro-Woolley	United States	Record low maximum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Dundurn	Canada	Record daily snowfall	8.9 cm (3.5 in)	34 of 100 (Routine)
Torungen Fyr	Norway	Record daily precipitation	26.1 mm (1.0 in)	34 of 100 (Routine)
Southport 5 N	United States	Record high maximum temperature	28.3 C (82.9 F)	34 of 100 (Routine)
Austin 3 S	United States	Record daily snowfall	25.4 cm (10.0 in)	34 of 100 (Routine)
Wisconsin Rapids	United States	Record daily snowfall	19.8 cm (7.8 in)	34 of 100 (Routine)
Muckaty	Australia	Record daily precipitation	32.0 mm (1.3 in)	33 of 100 (Routine)
Scott Cda	Canada	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Waseca	Canada	Record daily snowfall	10.9 cm (4.3 in)	33 of 100 (Routine)
East Brady	United States	Record daily precipitation	39.6 mm (1.6 in)	33 of 100 (Routine)
Zwartruggens (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Denton	United States	Record snow depth	20.3 cm (8.0 in)	32 of 100 (Routine)
Mongagua	Brazil	Record daily precipitation	95.8 mm (3.8 in)	31 of 100 (Routine)
Cottonwood 2 E	United States	Record snow depth	22.9 cm (9.0 in)	31 of 100 (Routine)
Carbean	Australia	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Sapphire (Argyle)	Australia	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Fazenda Sobradinho	Brazil	Record daily precipitation	26.0 mm (1.0 in)	30 of 100 (Routine)
Wittebank	South Africa	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Porto Firme	Brazil	Record daily precipitation	57.2 mm (2.3 in)	29 of 100 (Routine)
Itanhaem	Brazil	Record daily precipitation	69.5 mm (2.7 in)	29 of 100 (Routine)
Mundau	Brazil	Record daily precipitation	115.0 mm (4.5 in)	29 of 100 (Routine)
Pocinhos (Joffily)	Brazil	Record daily precipitation	34.6 mm (1.4 in)	29 of 100 (Routine)
Bodocongo	Brazil	Record daily precipitation	58.6 mm (2.3 in)	29 of 100 (Routine)
Saint Anthony	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Ft Valley	United States	Record daily snowfall	25.4 cm (10.0 in)	28 of 100 (Routine)
Hamilton	United States	Record daily snowfall	6.4 cm (2.5 in)	28 of 100 (Routine)
Sedgewick	Canada	Record daily snowfall	5.8 cm (2.3 in)	27 of 100 (Routine)
Empress	Canada	Record daily snowfall	7.6 cm (3.0 in)	27 of 100 (Routine)
Semjachik	Russia	Record low minimum temperature	-13.5 C (7.7 F)	27 of 100 (Routine)
Colstrip	United States	Record snow depth	17.8 cm (7.0 in)	27 of 100 (Routine)
Roy 8 NE	United States	Record snow depth	53.3 cm (21.0 in)	27 of 100 (Routine)
Richmond	United States	Record daily snowfall	12.7 cm (5.0 in)	27 of 100 (Routine)
South Pass City	United States	Record low minimum temperature	-23.3 C (-9.9 F)	27 of 100 (Routine)
Piracuruca	Brazil	Record daily precipitation	61.0 mm (2.4 in)	26 of 100 (Routine)
Patamute	Brazil	Record daily precipitation	25.0 mm (1.0 in)	26 of 100 (Routine)
Truxton Canyon	United States	Record low minimum temperature	-4.4 C (24.1 F)	26 of 100 (Routine)
Preston Sugar Factory	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Lakeview	United States	Record daily precipitation	26.4 mm (1.0 in)	26 of 100 (Routine)
Eureka	United States	Record daily snowfall	25.4 cm (10.0 in)	26 of 100 (Routine)
Usina Rio Dos Campos	Brazil	Record daily precipitation	74.5 mm (2.9 in)	25 of 100 (Routine)

Counts by Type and Timescale

524 records

Records set or tied on 1 April 1977 by type: Highest daily maximum 33, Lowest daily maximum 60, Highest daily minimum 43, Lowest daily minimum 55, Heaviest daily rainfall 268, Heaviest daily snowfall 52, Deepest snow cover 13.

Records on 1 April 1977 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	60
Highest daily minimum	43
Lowest daily minimum	55
Heaviest daily rainfall	268
Heaviest daily snowfall	52
Deepest snow cover	13

Records on 1 April 1977 by timescale: all-time 0, monthly 21, daily 503.

How Much Records Were Beaten By

444 broken records

Margins by which the 444 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

1 April 1977

Top 20 records on 1 April 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 April 1977	Crato, BR	daily rain	151.0 mm (5.9 in)	93.6 mm (3.7 in)	52 years	61 of 100 (Major)
1 April 1977	Galeana (Smn), MX	monthly high min	28.9 C (84.0 F)	8.3 C (14.9 F)	52 years	53 of 100 (Notable)
1 April 1977	Lipeck, RU	monthly rain	26.8 mm (1.1 in)	9.6 mm (0.38 in)	35 years	52 of 100 (Notable)
1 April 1977	Sao Joao Do Cariri, BR	daily rain	98.6 mm (3.9 in)	56.3 mm (2.2 in)	55 years	50 of 100 (Notable)
1 April 1977	Spearfish, US	monthly snow depth	76.2 cm (30.0 in)	10.2 cm (4.0 in)	79 years	49 of 100 (Notable)
1 April 1977	Alexandria, AU	monthly rain	89.0 mm (3.5 in)	19.9 mm (0.8 in)	45 years	47 of 100 (Notable)
1 April 1977	Gillespie, AU	daily rain	68.7 mm (2.7 in)	38.2 mm (1.5 in)	48 years	47 of 100 (Notable)
1 April 1977	Ogden Pioneer Ph, US	monthly snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	74 years	44 of 100 (Notable)
1 April 1977	Pereque, BR	daily rain	115.0 mm (4.5 in)	54.7 mm (2.2 in)	31 years	43 of 100 (Notable)
1 April 1977	Cardston, CA	daily snowfall	36.8 cm (14.5 in)	21.6 cm (8.5 in)	4 years	43 of 100 (Notable)
1 April 1977	Rosewood Walloon Rd, AU	daily rain	47.6 mm (1.9 in)	30.8 mm (1.2 in)	32 years	39 of 100 (Notable)
1 April 1977	Kihei 311, US	daily rain	29.2 mm (1.1 in)	21.6 mm (0.9 in)	16 years	39 of 100 (Notable)
1 April 1977	Spring Bluff Railway STN, AU	daily rain	33.0 mm (1.3 in)	10.1 mm (0.4 in)	76 years	38 of 100 (Notable)
1 April 1977	Enzelberg, ZA	daily rain	34.5 mm (1.4 in)	24.8 mm (1.0 in)	48 years	38 of 100 (Notable)
1 April 1977	Potgietersrus, ZA	daily rain	38.0 mm (1.5 in)	34.2 mm (1.3 in)	28 years	38 of 100 (Notable)
1 April 1977	Gulkana AP, US	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	62 years	38 of 100 (Notable)
1 April 1977	Juazeiro (Pcd), BR	daily rain	72.6 mm (2.9 in)	43.2 mm (1.7 in)	32 years	37 of 100 (Notable)
1 April 1977	Cardston, CA	daily rain	36.8 mm (1.4 in)	21.6 mm (0.9 in)	4 years	36 of 100 (Notable)
1 April 1977	Seward AP, US	monthly rain	109.7 mm (4.3 in)	15.5 mm (0.6 in)	17 years	36 of 100 (Notable)
1 April 1977	Keg River, CA	daily snowfall	17.8 cm (7.0 in)	10.2 cm (4.0 in)	4 years	35 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

1803 to 1977

Records set or tied on this calendar date in each year from 1803 to 1977. 1977 had 524 records.

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

Records on 04-01 in each year
Year	Records
1803	1
1805	1
1808	1
1813	1
1815	3
1819	1
1830	2
1847	2
1848	1
1850	1
1855	3
1856	1
1861	2
1862	2
1865	1
1869	2
1872	1
1873	1
1874	2
1876	1
1878	3
1879	2
1881	1
1885	1
1887	2
1888	2
1889	2
1891	5
1892	1
1893	2
1896	4
1897	5
1898	3
1899	4
1900	4
1901	4
1902	4
1903	12
1904	29
1905	10
1906	7
1907	24
1908	5
1909	13
1910	26
1911	27
1912	31
1913	35
1914	37
1915	25
1916	35
1917	80
1918	51
1919	165
1920	65
1921	46
1922	98
1923	319
1924	257
1925	111
1926	234
1927	326
1928	194
1929	336
1930	153
1931	846
1932	292
1933	188
1934	153
1935	424
1936	1,248
1937	192
1938	461
1939	226
1940	840
1941	285
1942	209
1943	319
1944	266
1945	880
1946	1,172
1947	390
1948	590
1949	308
1950	455
1951	406
1952	419
1953	249
1954	493
1955	288
1956	744
1957	314
1958	535
1959	821
1960	295
1961	496
1962	652
1963	1,123
1964	951
1965	678
1966	689
1967	928
1968	377
1969	611
1970	894
1971	384
1972	510
1973	680
1974	894
1975	1,806
1976	767
1977	524
1978	1,013
1979	738
1980	797
1981	1,115
1982	884
1983	643
1984	662
1985	826
1986	982
1987	1,762
1988	1,259
1989	1,098
1990	952
1991	693
1992	981
1993	783
1994	739
1995	1,056
1996	996
1997	1,255
1998	1,703
1999	1,341
2000	690
2001	575
2002	985
2003	1,366
2004	926
2005	1,086
2006	929
2007	963
2008	1,457
2009	846
2010	1,022
2011	1,105
2012	1,327
2013	719
2014	657
2015	606
2016	842
2017	792
2018	870
2019	674
2020	719
2021	790
2022	853
2023	1,069
2024	788
2025	779
2026	1,042

Download the Data

Data for records on 1977-04-01: 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	414
50 to 100	21
100 to 150	6
150 to 200	1
200 to 250	1
250 to 300	1