Weather Records on 13 April 1977

1,066 weather records were set or tied worldwide on 13 April 1977. Highest significance: Alicedale, ZA.

Key Facts for 13 April 1977

On 13 April 1977, 1,066 weather records were set or tied at long-record stations worldwide.
550 were record highs and 110 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 28 monthly and 1,036 daily.
Alicedale set a daily record precipitation of 47.0 mm (1.9 in) on 13 April 1977.
Across 164 earlier years (1798 to 2026) the same calendar date averaged 481 records.

Record Map

1,066 stations

1,066 station records on 13 April 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 13 April 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Alicedale	South Africa	Record daily precipitation	47.0 mm (1.9 in)	72 of 100 (Major)
Ekaterinburg	Russia	Record daily precipitation	25.3 mm (1.0 in)	68 of 100 (Major)
Zugspitze	Germany	Record daily precipitation	58.8 mm (2.3 in)	66 of 100 (Major)
Gannapan	South Africa	Record daily precipitation	34.0 mm (1.3 in)	66 of 100 (Major)
David City 4E	United States	Record daily precipitation	41.1 mm (1.6 in)	62 of 100 (Major)
Kenhardt (Pol)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	59 of 100 (Notable)
Aurora	United States	Record daily precipitation	75.2 mm (3.0 in)	58 of 100 (Notable)
Assare	Brazil	Record daily precipitation	82.1 mm (3.2 in)	56 of 100 (Notable)
Prince Albert Road	South Africa	Record daily precipitation	27.0 mm (1.1 in)	54 of 100 (Notable)
Adolphskraal	South Africa	Record daily precipitation	43.0 mm (1.7 in)	53 of 100 (Notable)
Bakensrug	South Africa	Record daily precipitation	28.5 mm (1.1 in)	53 of 100 (Notable)
Atlantic City Marina	United States	Record high minimum temperature	15.0 C (59.0 F)	53 of 100 (Notable)
Rust-En-Vrede	South Africa	Record daily precipitation	54.0 mm (2.1 in)	52 of 100 (Notable)
Hankey (Pol)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
Aberdeen (Tnk)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	50 of 100 (Notable)
Steytlerville (Mag)	South Africa	Record daily precipitation	44.5 mm (1.8 in)	49 of 100 (Notable)
Cambridge Galt Moe	Canada	Record high minimum temperature	15.0 C (59.0 F)	48 of 100 (Notable)
Coscomatepec (Smn)	Mexico	Record daily precipitation	199.9 mm (7.9 in)	48 of 100 (Notable)
Kamferskraal	South Africa	Record daily precipitation	37.5 mm (1.5 in)	48 of 100 (Notable)
Brakfontein	South Africa	Record daily precipitation	40.0 mm (1.6 in)	48 of 100 (Notable)
Bradshaw	United States	Record daily precipitation	57.7 mm (2.3 in)	48 of 100 (Notable)
Clay Ctr 6 ESE	United States	Record daily precipitation	49.0 mm (1.9 in)	48 of 100 (Notable)
De Rust (Pol)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
Wagenaarskraal	South Africa	Record daily precipitation	34.0 mm (1.3 in)	47 of 100 (Notable)
La Motte (Bos)	South Africa	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Quambatook	Australia	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Sioux Rapids	United States	Record daily precipitation	45.2 mm (1.8 in)	45 of 100 (Notable)
Poortjie-Wes	South Africa	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Dunedin	South Africa	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Reitfontein	South Africa	Record daily precipitation	55.0 mm (2.2 in)	44 of 100 (Notable)
Arneiroz	Brazil	Record daily precipitation	51.2 mm (2.0 in)	43 of 100 (Notable)
Keimoes (Pol)	South Africa	Record daily precipitation	46.5 mm (1.8 in)	43 of 100 (Notable)
Bastanka	Ukraine	Record daily precipitation	35.2 mm (1.4 in)	43 of 100 (Notable)
Devoncourt Station	Australia	Record daily precipitation	44.0 mm (1.7 in)	42 of 100 (Notable)
Oorlogshoek	South Africa	Record daily precipitation	43.0 mm (1.7 in)	42 of 100 (Notable)
Oberstdorf	Germany	Record daily precipitation	57.6 mm (2.3 in)	41 of 100 (Notable)
Pommelsbrunn	Germany	Record daily precipitation	25.0 mm (1.0 in)	41 of 100 (Notable)
Rhebokskraal	South Africa	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Nikopol	Ukraine	Record daily precipitation	29.8 mm (1.2 in)	41 of 100 (Notable)
Middletown 4 W	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Osceola	United States	Record daily precipitation	30.5 mm (1.2 in)	41 of 100 (Notable)
Shamhor	Azerbaijan	Record daily precipitation	28.0 mm (1.1 in)	40 of 100 (Notable)
Canobie	Australia	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Acambaro	Mexico	Record low maximum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
York	United States	Record daily precipitation	29.7 mm (1.2 in)	40 of 100 (Notable)
Philadelphia City	United States	Record high maximum temperature	30.0 C (86.0 F)	40 of 100 (Notable)
Cambridge Galt Moe	Canada	Record high maximum temperature	26.0 C (78.8 F)	39 of 100 (Notable)
Cointzio	Mexico	Record low maximum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Dumure	South Africa	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Letjiebos (Sar)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	39 of 100 (Notable)
Sarelsrivier	South Africa	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
Prinshof	South Africa	Record daily precipitation	79.3 mm (3.1 in)	39 of 100 (Notable)
Carnarvon	South Africa	Record daily precipitation	77.0 mm (3.0 in)	39 of 100 (Notable)
Middletown 4 W	United States	Record high minimum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Hopefield (Pol)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Wolwefontein (Pol)	South Africa	Record daily precipitation	30.6 mm (1.2 in)	38 of 100 (Notable)
Kalabasput	South Africa	Record daily precipitation	46.0 mm (1.8 in)	38 of 100 (Notable)
Edgartown	United States	Record high maximum temperature	27.2 C (81.0 F)	38 of 100 (Notable)
Bad Reichenhall	Germany	Record daily precipitation	40.3 mm (1.6 in)	37 of 100 (Notable)
Sigmarszell-Zeisertsweiler	Germany	Record daily precipitation	45.0 mm (1.8 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,066 records

Records set or tied on 13 April 1977 by type: Highest daily maximum 379, Lowest daily maximum 83, Highest daily minimum 171, Lowest daily minimum 27, Heaviest daily rainfall 396, Heaviest daily snowfall 4, Deepest snow cover 6.

Records on 13 April 1977 by type
Record type	Records
Highest daily maximum	379
Lowest daily maximum	83
Highest daily minimum	171
Lowest daily minimum	27
Heaviest daily rainfall	396
Heaviest daily snowfall	4
Deepest snow cover	6

Records on 13 April 1977 by timescale: all-time 2, monthly 28, daily 1,036.

How Much Records Were Beaten By

863 broken records

Margins by which the 863 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

13 April 1977

Top 20 records on 13 April 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 April 1977	Alicedale, ZA	daily rain	47.0 mm (1.9 in)	33.0 mm (1.3 in)	75 years	72 of 100 (Major)
13 April 1977	Ekaterinburg, RU	daily rain	25.3 mm (1.0 in)	20.8 mm (0.8 in)	64 years	68 of 100 (Major)
13 April 1977	Zugspitze, DE	daily rain	58.8 mm (2.3 in)	31.9 mm (1.3 in)	76 years	66 of 100 (Major)
13 April 1977	Gannapan, ZA	daily rain	34.0 mm (1.3 in)	28.9 mm (1.1 in)	95 years	66 of 100 (Major)
13 April 1977	David City 4E, US	daily rain	41.1 mm (1.6 in)	27.1 mm (1.1 in)	82 years	62 of 100 (Major)
13 April 1977	Kenhardt (Pol), ZA	daily rain	25.0 mm (1.0 in)	18.1 mm (0.7 in)	84 years	59 of 100 (Notable)
13 April 1977	Aurora, US	monthly rain	75.2 mm (3.0 in)	16.5 mm (0.6 in)	80 years	58 of 100 (Notable)
13 April 1977	Assare, BR	daily rain	82.1 mm (3.2 in)	56.3 mm (2.2 in)	51 years	56 of 100 (Notable)
13 April 1977	Prince Albert Road, ZA	daily rain	27.0 mm (1.1 in)	14.3 mm (0.6 in)	76 years	54 of 100 (Notable)
13 April 1977	Adolphskraal, ZA	daily rain	43.0 mm (1.7 in)	35.6 mm (1.4 in)	48 years	53 of 100 (Notable)
13 April 1977	Bakensrug, ZA	daily rain	28.5 mm (1.1 in)	14.5 mm (0.6 in)	84 years	53 of 100 (Notable)
13 April 1977	Atlantic City Marina, US	daily high min	15.0 C (59.0 F)	5.0 C (9.0 F)	98 years	53 of 100 (Notable)
13 April 1977	Rust-En-Vrede, ZA	daily rain	54.0 mm (2.1 in)	40.8 mm (1.6 in)	24 years	52 of 100 (Notable)
13 April 1977	Hankey (Pol), ZA	daily rain	40.0 mm (1.6 in)	24.0 mm (0.9 in)	81 years	51 of 100 (Notable)
13 April 1977	Aberdeen (Tnk), ZA	daily rain	29.5 mm (1.2 in)	20.6 mm (0.8 in)	48 years	50 of 100 (Notable)
13 April 1977	Steytlerville (Mag), ZA	daily rain	44.5 mm (1.8 in)	28.5 mm (1.1 in)	14 years	49 of 100 (Notable)
13 April 1977	Cambridge Galt Moe, CA	daily high min	15.0 C (59.0 F)	6.7 C (12.1 F)	86 years	48 of 100 (Notable)
13 April 1977	Coscomatepec (Smn), MX	all-time rain	199.9 mm (7.9 in)	21.1 mm (0.8 in)	19 years	48 of 100 (Notable)
13 April 1977	Kamferskraal, ZA	daily rain	37.5 mm (1.5 in)	23.5 mm (0.9 in)	43 years	48 of 100 (Notable)
13 April 1977	Brakfontein, ZA	daily rain	40.0 mm (1.6 in)	20.7 mm (0.8 in)	51 years	48 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

1798 to 1977

Records set or tied on this calendar date in each year from 1798 to 1977. 1977 had 1,066 records.

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

Records on 04-13 in each year
Year	Records
1798	1
1806	1
1809	2
1812	1
1817	1
1830	1
1831	1
1834	1
1836	1
1837	1
1839	2
1849	1
1852	1
1854	1
1856	2
1862	1
1864	1
1865	3
1869	3
1872	1
1874	1
1875	3
1876	2
1878	1
1879	2
1882	2
1885	1
1886	3
1889	2
1890	8
1891	2
1892	4
1894	1
1895	1
1896	3
1897	4
1898	2
1899	2
1900	5
1901	1
1902	3
1903	11
1904	15
1905	9
1906	23
1907	16
1908	6
1909	37
1910	13
1911	32
1912	41
1913	62
1914	58
1915	17
1916	47
1917	36
1918	35
1919	26
1920	258
1921	59
1922	74
1923	125
1924	96
1925	137
1926	232
1927	167
1928	139
1929	117
1930	477
1931	339
1932	392
1933	489
1934	674
1935	480
1936	435
1937	185
1938	268
1939	857
1940	1,562
1941	1,085
1942	137
1943	745
1944	212
1945	978
1946	391
1947	532
1948	595
1949	302
1950	1,352
1951	715
1952	738
1953	609
1954	504
1955	665
1956	294
1957	714
1958	465
1959	515
1960	286
1961	669
1962	603
1963	353
1964	408
1965	656
1966	563
1967	665
1968	739
1969	324
1970	624
1971	390
1972	1,411
1973	701
1974	729
1975	675
1976	807
1977	1,066
1978	448
1979	715
1980	734
1981	872
1982	710
1983	1,394
1984	397
1985	746
1986	1,509
1987	768
1988	1,145
1989	1,671
1990	800
1991	1,326
1992	1,189
1993	574
1994	1,104
1995	789
1996	913
1997	2,451
1998	1,710
1999	631
2000	956
2001	1,013
2002	916
2003	1,245
2004	1,091
2005	425
2006	1,023
2007	1,271
2008	1,021
2009	760
2010	1,028
2011	761
2012	609
2013	759
2014	868
2015	607
2016	510
2017	454
2018	914
2019	736
2020	2,051
2021	465
2022	2,173
2023	1,433
2024	1,172
2025	952
2026	849

Download the Data

Data for records on 1977-04-13: 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	858
50 to 100	2
100 to 150	1
150 to 200	1
200 to 250	1