Weather Records on 11 April 1978

854 weather records were set or tied worldwide on 11 April 1978. Highest significance: Meredith, AU.

Key Facts for 11 April 1978

On 11 April 1978, 854 weather records were set or tied at long-record stations worldwide.
279 were record highs and 161 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 22 monthly and 832 daily.
Meredith set a daily record precipitation of 45.0 mm (1.8 in) on 11 April 1978.
Across 164 earlier years (1800 to 2026) the same calendar date averaged 479 records.

Record Map

854 stations

854 station records on 11 April 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 April 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Meredith	Australia	Record daily precipitation	45.0 mm (1.8 in)	63 of 100 (Major)
Orford (Rheban)	Australia	Record daily precipitation	49.0 mm (1.9 in)	62 of 100 (Major)
Morrl Morrl (Valley View)	Australia	Record daily precipitation	66.2 mm (2.6 in)	60 of 100 (Major)
Paulista	Brazil	Record daily precipitation	78.3 mm (3.1 in)	56 of 100 (Notable)
Russell	Canada	Record daily snowfall	15.2 cm (6.0 in)	56 of 100 (Notable)
Birchip (Marlbed)	Australia	Record daily precipitation	47.8 mm (1.9 in)	55 of 100 (Notable)
St Arnaud (Coonooer Bridge)	Australia	Record daily precipitation	27.6 mm (1.1 in)	51 of 100 (Notable)
Gisborne	Australia	Record daily precipitation	25.6 mm (1.0 in)	50 of 100 (Notable)
Buxton	United Kingdom	Record low minimum temperature	-8.0 C (17.6 F)	49 of 100 (Notable)
Orford South	Australia	Record daily precipitation	43.0 mm (1.7 in)	47 of 100 (Notable)
Hawksdale Shire Office	Australia	Record daily precipitation	48.8 mm (1.9 in)	45 of 100 (Notable)
Etne	Norway	Record snow depth	15.0 cm (5.9 in)	45 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	36.0 mm (1.4 in)	44 of 100 (Notable)
Alliston	Canada	Record daily snowfall	20.3 cm (8.0 in)	44 of 100 (Notable)
Ottawa Macdonald-Cartier Int'l	Canada	Record daily precipitation	28.6 mm (1.1 in)	42 of 100 (Notable)
Ahuacatlan	Mexico	Record low maximum temperature	24.4 C (75.9 F)	42 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record daily precipitation	76.7 mm (3.0 in)	42 of 100 (Notable)
Lankaran	Azerbaijan	Record daily precipitation	32.6 mm (1.3 in)	41 of 100 (Notable)
Buckland (Brockley)	Australia	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Elderslie, Tweedie	South Africa	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Yellowknife Hydro	Canada	Record daily snowfall	8.9 cm (3.5 in)	40 of 100 (Notable)
Denman (Palace Street)	Australia	Record daily precipitation	30.4 mm (1.2 in)	39 of 100 (Notable)
Salekhard	Russia	Record low minimum temperature	-35.4 C (-31.7 F)	39 of 100 (Notable)
Agnes River	Australia	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Hawkesdale (Post Office)	Australia	Record daily precipitation	44.0 mm (1.7 in)	37 of 100 (Notable)
Bananal (Pcd)	Brazil	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Tullaroop Reservoir	Australia	Record daily precipitation	40.0 mm (1.6 in)	36 of 100 (Notable)
Murcia/Alcantarilla	Spain	Record daily precipitation	45.0 mm (1.8 in)	36 of 100 (Notable)
Triabunna (3 Boyle Street)	Australia	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Empress	Canada	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Clayton 1 SSW	United States	Record high minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Penshurst (Post Office)	Australia	Record daily precipitation	36.2 mm (1.4 in)	34 of 100 (Routine)
Americus	United States	Record high maximum temperature	31.7 C (89.1 F)	34 of 100 (Routine)
Douglas	United States	Record high maximum temperature	32.8 C (91.0 F)	34 of 100 (Routine)
Roxboro 7 ESE	United States	Record high maximum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Asheville	United States	Record high minimum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Tashkent	Uzbekistan	Record high minimum temperature	17.0 C (62.6 F)	34 of 100 (Routine)
Krambach Post Office	Australia	Record daily precipitation	46.4 mm (1.8 in)	33 of 100 (Routine)
Dartmoor	Australia	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Indian Head Cda	Canada	Record daily snowfall	9.0 cm (3.5 in)	33 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record low maximum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Susanville 2SW	United States	Record high minimum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Willow Tree (General Store)	Australia	Record daily precipitation	28.0 mm (1.1 in)	32 of 100 (Routine)
Biggar	Canada	Record daily snowfall	8.2 cm (3.2 in)	32 of 100 (Routine)
Birtle	Canada	Record daily snowfall	9.7 cm (3.8 in)	32 of 100 (Routine)
Puerto Vallarta	Mexico	Record low maximum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Talbotton	United States	Record high minimum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Terang	Australia	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Lake Crescent (Serat)	Australia	Record daily precipitation	46.0 mm (1.8 in)	31 of 100 (Routine)
Yellow Grass	Canada	Record daily snowfall	7.0 cm (2.8 in)	31 of 100 (Routine)
San Pedro	Mexico	Record low maximum temperature	26.7 C (80.1 F)	31 of 100 (Routine)
Sheffield	United Kingdom	Record low minimum temperature	-2.9 C (26.8 F)	31 of 100 (Routine)
Durham	United Kingdom	Record low minimum temperature	-3.8 C (25.2 F)	31 of 100 (Routine)
Dublin	United States	Record high maximum temperature	32.8 C (91.0 F)	31 of 100 (Routine)
Doniphan	United States	Record daily precipitation	69.3 mm (2.7 in)	31 of 100 (Routine)
Marathon	United States	Record low minimum temperature	-1.7 C (28.9 F)	31 of 100 (Routine)
Swansea Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Eelde	Netherlands	Record low maximum temperature	3.0 C (37.4 F)	30 of 100 (Routine)
Waynesboro 2 S	United States	Record high maximum temperature	32.2 C (90.0 F)	30 of 100 (Routine)
Shaki	Azerbaijan	Record daily precipitation	46.3 mm (1.8 in)	29 of 100 (Routine)

Counts by Type and Timescale

854 records

Records set or tied on 11 April 1978 by type: Highest daily maximum 112, Lowest daily maximum 98, Highest daily minimum 167, Lowest daily minimum 63, Heaviest daily rainfall 357, Heaviest daily snowfall 54, Deepest snow cover 3.

Records on 11 April 1978 by type
Record type	Records
Highest daily maximum	112
Lowest daily maximum	98
Highest daily minimum	167
Lowest daily minimum	63
Heaviest daily rainfall	357
Heaviest daily snowfall	54
Deepest snow cover	3

Records on 11 April 1978 by timescale: all-time 0, monthly 22, daily 832.

How Much Records Were Beaten By

709 broken records

Margins by which the 709 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

11 April 1978

Top 20 records on 11 April 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 April 1978	Meredith, AU	daily rain	45.0 mm (1.8 in)	25.9 mm (1.0 in)	75 years	63 of 100 (Major)
11 April 1978	Orford (Rheban), AU	daily rain	49.0 mm (1.9 in)	33.3 mm (1.3 in)	57 years	62 of 100 (Major)
11 April 1978	Morrl Morrl (Valley View), AU	daily rain	66.2 mm (2.6 in)	49.9 mm (2.0 in)	45 years	60 of 100 (Major)
11 April 1978	Paulista, BR	daily rain	78.3 mm (3.1 in)	78.3 mm (3.1 in)	40 years	56 of 100 (Notable)
11 April 1978	Russell, CA	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	32 years	56 of 100 (Notable)
11 April 1978	Birchip (Marlbed), AU	daily rain	47.8 mm (1.9 in)	33.8 mm (1.3 in)	29 years	55 of 100 (Notable)
11 April 1978	St Arnaud (Coonooer Bridge), AU	daily rain	27.6 mm (1.1 in)	15.9 mm (0.6 in)	75 years	51 of 100 (Notable)
11 April 1978	Gisborne, AU	daily rain	25.6 mm (1.0 in)	16.7 mm (0.7 in)	86 years	50 of 100 (Notable)
11 April 1978	Buxton, GB	monthly low min	-8.0 C (17.6 F)	1.4 C (2.5 F)	85 years	49 of 100 (Notable)
11 April 1978	Orford South, AU	daily rain	43.0 mm (1.7 in)	24.2 mm (1.0 in)	45 years	47 of 100 (Notable)
11 April 1978	Hawksdale Shire Office, AU	daily rain	48.8 mm (1.9 in)	22.4 mm (0.9 in)	29 years	45 of 100 (Notable)
11 April 1978	Etne, NO	daily snow depth	15.0 cm (5.9 in)	11.0 cm (4.3 in)	32 years	45 of 100 (Notable)
11 April 1978	Kellevie, AU	daily rain	36.0 mm (1.4 in)	23.8 mm (0.9 in)	63 years	44 of 100 (Notable)
11 April 1978	Alliston, CA	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	32 years	44 of 100 (Notable)
11 April 1978	Ottawa Macdonald-Cartier Int'l, CA	daily rain	28.6 mm (1.1 in)	17.4 mm (0.7 in)	37 years	42 of 100 (Notable)
11 April 1978	Ahuacatlan, MX	daily low max	24.4 C (75.9 F)	5.6 C (10.1 F)	52 years	42 of 100 (Notable)
11 April 1978	New Iberia AP - Acadiana Rgnl, US	daily rain	76.7 mm (3.0 in)	37.3 mm (1.5 in)	69 years	42 of 100 (Notable)
11 April 1978	Lankaran, AZ	daily rain	32.6 mm (1.3 in)	11.2 mm (0.4 in)	56 years	41 of 100 (Notable)
11 April 1978	Buckland (Brockley), AU	daily rain	48.0 mm (1.9 in)	18.8 mm (0.7 in)	63 years	41 of 100 (Notable)
11 April 1978	Elderslie, Tweedie, ZA	daily rain	41.9 mm (1.6 in)	22.9 mm (0.9 in)	44 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

1800 to 1978

Records set or tied on this calendar date in each year from 1800 to 1978. 1978 had 854 records.

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

Records on 04-11 in each year
Year	Records
1800	1
1803	1
1808	1
1809	1
1812	3
1818	1
1831	1
1832	1
1834	1
1837	1
1845	1
1854	1
1857	1
1863	2
1865	2
1866	1
1868	1
1869	3
1871	1
1874	1
1876	2
1879	2
1880	2
1881	1
1882	2
1885	1
1886	1
1887	2
1888	4
1889	2
1890	2
1891	2
1892	3
1894	7
1895	5
1896	3
1898	7
1899	11
1900	6
1901	4
1902	6
1903	13
1904	12
1905	20
1906	19
1907	7
1908	12
1909	30
1910	19
1911	19
1912	47
1913	48
1914	38
1915	127
1916	64
1917	62
1918	43
1919	42
1920	73
1921	32
1922	140
1923	89
1924	169
1925	197
1926	198
1927	156
1928	220
1929	214
1930	761
1931	185
1932	497
1933	481
1934	246
1935	261
1936	175
1937	245
1938	289
1939	611
1940	932
1941	579
1942	301
1943	546
1944	626
1945	890
1946	383
1947	478
1948	921
1949	402
1950	322
1951	623
1952	502
1953	594
1954	392
1955	610
1956	420
1957	508
1958	473
1959	582
1960	469
1961	532
1962	384
1963	450
1964	255
1965	763
1966	599
1967	757
1968	663
1969	353
1970	522
1971	495
1972	792
1973	1,479
1974	982
1975	851
1976	478
1977	1,231
1978	854
1979	977
1980	399
1981	1,036
1982	1,132
1983	1,040
1984	623
1985	952
1986	1,062
1987	440
1988	1,162
1989	1,931
1990	1,347
1991	1,287
1992	978
1993	722
1994	952
1995	2,134
1996	1,182
1997	3,077
1998	916
1999	1,318
2000	667
2001	1,865
2002	568
2003	1,156
2004	888
2005	930
2006	666
2007	962
2008	1,373
2009	1,102
2010	623
2011	1,664
2012	806
2013	1,482
2014	633
2015	399
2016	534
2017	489
2018	795
2019	812
2020	625
2021	892
2022	1,179
2023	1,036
2024	782
2025	1,177
2026	604

Download the Data

Data for records on 1978-04-11: 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 20	655
20 to 40	35
40 to 60	7
60 to 80	7
80 to 100	1
100 to 120	2
120 to 140	1
140 to 160	1