Weather Records on 9 April 1977

1,693 weather records were set or tied worldwide on 9 April 1977. Highest significance: Tenerife/Los Rodeos, ES.

Key Facts for 9 April 1977

On 9 April 1977, 1,693 weather records were set or tied at long-record stations worldwide.
789 were record highs and 626 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 42 monthly and 1,651 daily.
Tenerife/Los Rodeos set a monthly record daily precipitation of 94.1 mm (3.7 in) on 9 April 1977.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,693 stations

1,693 station records on 9 April 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 April 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tenerife/Los Rodeos	Spain	Record daily precipitation	94.1 mm (3.7 in)	60 of 100 (Major)
Clare	Australia	Record daily precipitation	52.0 mm (2.0 in)	59 of 100 (Notable)
Usina Do Lobo	Brazil	Record daily precipitation	105.4 mm (4.1 in)	54 of 100 (Notable)
Rostov-Na-Donu	Russia	Record daily precipitation	25.2 mm (1.0 in)	54 of 100 (Notable)
Santa Isabel	Brazil	Record daily precipitation	49.1 mm (1.9 in)	50 of 100 (Notable)
Salitre	Brazil	Record daily precipitation	72.6 mm (2.9 in)	49 of 100 (Notable)
Itaju	Brazil	Record daily precipitation	74.4 mm (2.9 in)	49 of 100 (Notable)
P-Ranch South Place	United States	Record daily snowfall	8.9 cm (3.5 in)	48 of 100 (Notable)
Engenheiro Hermilo	Brazil	Record daily precipitation	49.8 mm (2.0 in)	47 of 100 (Notable)
Sao Miguel Arcanjo	Brazil	Record daily precipitation	60.0 mm (2.4 in)	46 of 100 (Notable)
Minnedosa	Canada	Record high maximum temperature	28.3 C (82.9 F)	45 of 100 (Notable)
Eleuterio	Brazil	Record daily precipitation	58.3 mm (2.3 in)	44 of 100 (Notable)
Acatlan de Osorio (Smn)	Mexico	Record low maximum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Itapetininga	Brazil	Record daily precipitation	51.9 mm (2.0 in)	43 of 100 (Notable)
Fazenda Aterradinho	Brazil	Record daily precipitation	67.8 mm (2.7 in)	43 of 100 (Notable)
Kilmashogue,Lowlands	South Africa	Record daily precipitation	45.8 mm (1.8 in)	43 of 100 (Notable)
Faulkton	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Sao Paulo (Aeroport	Brazil	Record daily precipitation	54.0 mm (2.1 in)	41 of 100 (Notable)
Coronel Macedo	Brazil	Record daily precipitation	56.9 mm (2.2 in)	41 of 100 (Notable)
Fazenda Sao Luiz	Brazil	Record daily precipitation	65.1 mm (2.6 in)	41 of 100 (Notable)
Brockville	Canada	Record low minimum temperature	-9.4 C (15.1 F)	41 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	0.4 C (32.7 F)	41 of 100 (Notable)
Mococa	Brazil	Record daily precipitation	73.7 mm (2.9 in)	40 of 100 (Notable)
Acude Varzea da Volta	Brazil	Record daily precipitation	100.0 mm (3.9 in)	40 of 100 (Notable)
Huntingdon	Canada	Record low minimum temperature	-13.3 C (8.1 F)	40 of 100 (Notable)
Vanersborg	Sweden	Record low maximum temperature	-1.6 C (29.1 F)	40 of 100 (Notable)
Masindi	Uganda	Record daily precipitation	87.6 mm (3.4 in)	40 of 100 (Notable)
Framingham	United States	Record low minimum temperature	-8.3 C (17.1 F)	40 of 100 (Notable)
Schenectady	United States	Record low minimum temperature	-8.3 C (17.1 F)	40 of 100 (Notable)
Tomazina	Brazil	Record daily precipitation	81.0 mm (3.2 in)	39 of 100 (Notable)
Ny City Cntrl Park	United States	Record low minimum temperature	-3.9 C (25.0 F)	39 of 100 (Notable)
Capivari	Brazil	Record daily precipitation	44.8 mm (1.8 in)	38 of 100 (Notable)
Fazenda Laranjal	Brazil	Record daily precipitation	54.2 mm (2.1 in)	38 of 100 (Notable)
Esplanada	Brazil	Record daily precipitation	47.4 mm (1.9 in)	38 of 100 (Notable)
Moosomin	Canada	Record high maximum temperature	28.9 C (84.0 F)	38 of 100 (Notable)
Port Dover	Canada	Record low minimum temperature	-8.0 C (17.6 F)	38 of 100 (Notable)
Newton	United States	Record high maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Lowville	United States	Record low minimum temperature	-12.2 C (10.0 F)	38 of 100 (Notable)
Highmore	United States	Record high maximum temperature	33.9 C (93.0 F)	38 of 100 (Notable)
Partoun	United States	Record high minimum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Karlstad	Sweden	Record low minimum temperature	-11.3 C (11.7 F)	37 of 100 (Notable)
Gardiner	United States	Record low minimum temperature	-9.4 C (15.1 F)	37 of 100 (Notable)
Logan Utah St UNIV	United States	Record high minimum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Innsbruck	Austria	Record low maximum temperature	1.3 C (34.3 F)	36 of 100 (Notable)
Vestervig	Denmark	Record low maximum temperature	1.5 C (34.7 F)	36 of 100 (Notable)
Osceola	United States	Record high maximum temperature	28.9 C (84.0 F)	36 of 100 (Notable)
Freehold-Marlboro	United States	Record low minimum temperature	-4.4 C (24.1 F)	36 of 100 (Notable)
Arcade	United States	Record low minimum temperature	-12.2 C (10.0 F)	36 of 100 (Notable)
Bowbells	United States	Record high maximum temperature	28.3 C (82.9 F)	36 of 100 (Notable)
Edmore 4NW	United States	Record high maximum temperature	30.0 C (86.0 F)	36 of 100 (Notable)
Trafalgar Station	Australia	Record daily precipitation	102.0 mm (4.0 in)	35 of 100 (Notable)
Ibate	Brazil	Record daily precipitation	56.2 mm (2.2 in)	35 of 100 (Notable)
Ribeirao Do Sul	Brazil	Record daily precipitation	51.2 mm (2.0 in)	35 of 100 (Notable)
Riversul	Brazil	Record daily precipitation	52.6 mm (2.1 in)	35 of 100 (Notable)
Usina Turvinho	Brazil	Record daily precipitation	34.9 mm (1.4 in)	35 of 100 (Notable)
Drummondville	Canada	Record low minimum temperature	-13.3 C (8.1 F)	35 of 100 (Notable)
Gavle	Sweden	Record low minimum temperature	-17.9 C (-0.2 F)	35 of 100 (Notable)
Algona	United States	Record high maximum temperature	31.1 C (88.0 F)	35 of 100 (Notable)
Somerville 4 NW	United States	Record low minimum temperature	-6.7 C (19.9 F)	35 of 100 (Notable)
Old Forge	United States	Record low minimum temperature	-20.6 C (-5.1 F)	35 of 100 (Notable)

Counts by Type and Timescale

1,693 records

Records set or tied on 9 April 1977 by type: Highest daily maximum 600, Lowest daily maximum 254, Highest daily minimum 189, Lowest daily minimum 372, Heaviest daily rainfall 238, Heaviest daily snowfall 11, Deepest snow cover 29.

Records on 9 April 1977 by type
Record type	Records
Highest daily maximum	600
Lowest daily maximum	254
Highest daily minimum	189
Lowest daily minimum	372
Heaviest daily rainfall	238
Heaviest daily snowfall	11
Deepest snow cover	29

Records on 9 April 1977 by timescale: all-time 0, monthly 42, daily 1,651.

How Much Records Were Beaten By

1,426 broken records

Margins by which the 1,426 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

9 April 1977

Top 20 records on 9 April 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 April 1977	Tenerife/Los Rodeos, ES	monthly rain	94.1 mm (3.7 in)	48.1 mm (1.9 in)	24 years	60 of 100 (Major)
9 April 1977	Clare, AU	daily rain	52.0 mm (2.0 in)	46.9 mm (1.8 in)	67 years	59 of 100 (Notable)
9 April 1977	Usina Do Lobo, BR	monthly rain	105.4 mm (4.1 in)	32.1 mm (1.3 in)	36 years	54 of 100 (Notable)
9 April 1977	Rostov-Na-Donu, RU	daily rain	25.2 mm (1.0 in)	19.4 mm (0.8 in)	32 years	54 of 100 (Notable)
9 April 1977	Santa Isabel, BR	daily rain	49.1 mm (1.9 in)	36.3 mm (1.4 in)	28 years	50 of 100 (Notable)
9 April 1977	Salitre, BR	daily rain	72.6 mm (2.9 in)	50.6 mm (2.0 in)	20 years	49 of 100 (Notable)
9 April 1977	Itaju, BR	daily rain	74.4 mm (2.9 in)	61.2 mm (2.4 in)	36 years	49 of 100 (Notable)
9 April 1977	P-Ranch South Place, US	daily snowfall	8.9 cm (3.5 in)	8.9 cm (3.5 in)	79 years	48 of 100 (Notable)
9 April 1977	Engenheiro Hermilo, BR	daily rain	49.8 mm (2.0 in)	34.8 mm (1.4 in)	36 years	47 of 100 (Notable)
9 April 1977	Sao Miguel Arcanjo, BR	daily rain	60.0 mm (2.4 in)	50.2 mm (2.0 in)	8 years	46 of 100 (Notable)
9 April 1977	Minnedosa, CA	daily high max	28.3 C (82.9 F)	7.7 C (13.9 F)	87 years	45 of 100 (Notable)
9 April 1977	Eleuterio, BR	daily rain	58.3 mm (2.3 in)	52.5 mm (2.1 in)	16 years	44 of 100 (Notable)
9 April 1977	Acatlan de Osorio (Smn), MX	daily low max	22.2 C (72.0 F)	8.4 C (15.1 F)	32 years	44 of 100 (Notable)
9 April 1977	Itapetininga, BR	daily rain	51.9 mm (2.0 in)	43.5 mm (1.7 in)	16 years	43 of 100 (Notable)
9 April 1977	Fazenda Aterradinho, BR	daily rain	67.8 mm (2.7 in)	49.0 mm (1.9 in)	8 years	43 of 100 (Notable)
9 April 1977	Kilmashogue,Lowlands, ZA	daily rain	45.8 mm (1.8 in)	28.5 mm (1.1 in)	16 years	43 of 100 (Notable)
9 April 1977	Faulkton, US	monthly high max	34.4 C (93.9 F)	0.5 C (0.9 F)	80 years	42 of 100 (Notable)
9 April 1977	Sao Paulo (Aeroport, BR	daily rain	54.0 mm (2.1 in)	33.7 mm (1.3 in)	12 years	41 of 100 (Notable)
9 April 1977	Coronel Macedo, BR	daily rain	56.9 mm (2.2 in)	30.5 mm (1.2 in)	36 years	41 of 100 (Notable)
9 April 1977	Fazenda Sao Luiz, BR	daily rain	65.1 mm (2.6 in)	51.4 mm (2.0 in)	16 years	41 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

1793 to 1977

Records set or tied on this calendar date in each year from 1793 to 1977. 1977 had 1,693 records.

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

Records on 04-09 in each year
Year	Records
1793	2
1798	1
1800	1
1805	1
1809	2
1812	2
1815	1
1818	1
1839	1
1842	2
1844	1
1846	1
1847	1
1849	1
1854	1
1856	1
1859	1
1862	1
1863	1
1864	1
1865	2
1866	2
1869	1
1871	2
1873	1
1877	1
1883	1
1884	1
1885	3
1886	1
1887	1
1888	3
1889	1
1890	7
1892	1
1893	1
1894	2
1895	4
1896	1
1897	3
1898	3
1899	9
1900	3
1901	8
1902	8
1903	12
1904	15
1905	21
1906	20
1907	21
1908	28
1909	25
1910	19
1911	21
1912	51
1913	16
1914	41
1915	89
1916	85
1917	105
1918	29
1919	67
1920	56
1921	114
1922	140
1923	79
1924	353
1925	129
1926	83
1927	260
1928	395
1929	402
1930	430
1931	193
1932	119
1933	320
1934	310
1935	398
1936	151
1937	172
1938	378
1939	282
1940	214
1941	297
1942	432
1943	752
1944	564
1945	1,055
1946	335
1947	174
1948	365
1949	179
1950	750
1951	304
1952	578
1953	638
1954	239
1955	484
1956	371
1957	502
1958	294
1959	634
1960	623
1961	879
1962	344
1963	390
1964	645
1965	651
1966	466
1967	743
1968	669
1969	898
1970	489
1971	576
1972	1,200
1973	1,695
1974	972
1975	968
1976	347
1977	1,693
1978	921
1979	855
1980	911
1981	785
1982	1,923
1983	1,170
1984	904
1985	1,424
1986	620
1987	604
1988	737
1989	1,402
1990	888
1991	1,545
1992	641
1993	687
1994	511
1995	1,296
1996	1,547
1997	2,686
1998	1,018
1999	1,848
2000	997
2001	1,947
2002	590
2003	1,781
2004	572
2005	998
2006	603
2007	1,412
2008	1,029
2009	802
2010	652
2011	1,480
2012	640
2013	1,245
2014	592
2015	664
2016	974
2017	759
2018	1,306
2019	716
2020	916
2021	642
2022	574
2023	512
2024	1,093
2025	530
2026	517

Download the Data

Data for records on 1977-04-09: 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	1,409
50 to 100	15
100 to 150	1
150 to 200	0
200 to 250	1