Weather Records on 9 April 1978

921 weather records were set or tied worldwide on 9 April 1978. Highest significance: Casterton (Warrock), AU.

Key Facts for 9 April 1978

On 9 April 1978, 921 weather records were set or tied at long-record stations worldwide.
370 were record highs and 105 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 901 daily.
Casterton (Warrock) set a daily record precipitation of 66.6 mm (2.6 in) on 9 April 1978.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

921 stations

921 station records on 9 April 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 April 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Casterton (Warrock)	Australia	Record daily precipitation	66.6 mm (2.6 in)	70 of 100 (Major)
Kearney 4 NE	United States	Record daily precipitation	66.0 mm (2.6 in)	65 of 100 (Major)
Port Pirie Nyrstar Comparison	Australia	Record daily precipitation	42.0 mm (1.7 in)	63 of 100 (Major)
Loup City	United States	Record daily precipitation	56.4 mm (2.2 in)	63 of 100 (Major)
Glenwood Spgs #2	United States	Record daily precipitation	31.5 mm (1.2 in)	62 of 100 (Major)
Moab	United States	Record daily precipitation	53.3 mm (2.1 in)	59 of 100 (Notable)
Areia (Ufpb)	Brazil	Record daily precipitation	139.4 mm (5.5 in)	57 of 100 (Notable)
Tarkastad (Pol)	South Africa	Record daily precipitation	75.0 mm (3.0 in)	56 of 100 (Notable)
American River	Australia	Record daily precipitation	28.0 mm (1.1 in)	54 of 100 (Notable)
Atlin	Canada	Record daily snowfall	10.7 cm (4.2 in)	54 of 100 (Notable)
Wisconsin Rapids	United States	Record daily precipitation	45.7 mm (1.8 in)	54 of 100 (Notable)
Shenandoah	United States	Record daily precipitation	72.9 mm (2.9 in)	53 of 100 (Notable)
Little Port Walter	United States	Record daily precipitation	127.8 mm (5.0 in)	53 of 100 (Notable)
Leeukop	South Africa	Record daily precipitation	69.5 mm (2.7 in)	52 of 100 (Notable)
Delareyville (Mun)	South Africa	Record daily precipitation	126.0 mm (5.0 in)	52 of 100 (Notable)
Nikorcminda	Georgia	Record daily precipitation	53.8 mm (2.1 in)	51 of 100 (Notable)
Carpina (Floresta Dos Leoes)	Brazil	Record daily precipitation	95.4 mm (3.8 in)	50 of 100 (Notable)
Chohataury	Georgia	Record daily precipitation	54.1 mm (2.1 in)	50 of 100 (Notable)
D'Java	Georgia	Record daily precipitation	54.8 mm (2.2 in)	50 of 100 (Notable)
Gustavus	United States	Record daily precipitation	28.4 mm (1.1 in)	50 of 100 (Notable)
Menangle Jmai	Australia	Record daily precipitation	27.0 mm (1.1 in)	49 of 100 (Notable)
Picton Council Depot	Australia	Record daily precipitation	59.2 mm (2.3 in)	49 of 100 (Notable)
Boulder	United States	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Mancos 1SW	United States	Record daily snowfall	9.7 cm (3.8 in)	48 of 100 (Notable)
Berowra (Goodwyn Road)	Australia	Record daily precipitation	65.5 mm (2.6 in)	47 of 100 (Notable)
Pocinhos (Joffily)	Brazil	Record daily precipitation	85.2 mm (3.4 in)	47 of 100 (Notable)
Castle Rock	United States	Record daily precipitation	27.9 mm (1.1 in)	47 of 100 (Notable)
Wallacia Post Office	Australia	Record daily precipitation	72.6 mm (2.9 in)	46 of 100 (Notable)
Arcadia	United States	Record daily precipitation	40.1 mm (1.6 in)	46 of 100 (Notable)
Adelaide West Terrace	Australia	Record daily precipitation	25.0 mm (1.0 in)	44 of 100 (Notable)
Rosedale (Turretfield Research	Australia	Record daily precipitation	31.2 mm (1.2 in)	44 of 100 (Notable)
Cabaceiras	Brazil	Record daily precipitation	68.0 mm (2.7 in)	44 of 100 (Notable)
N Loup	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Fort Huachuca	United States	Record low maximum temperature	10.0 C (50.0 F)	43 of 100 (Notable)
Winter	United States	Record daily precipitation	29.0 mm (1.1 in)	42 of 100 (Notable)
Second Valley (Poolamacca)	Australia	Record daily precipitation	31.2 mm (1.2 in)	41 of 100 (Notable)
Senekal (Agr)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	41 of 100 (Notable)
Merced	United States	Record low minimum temperature	-1.7 C (28.9 F)	41 of 100 (Notable)
Fleming	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Osceola	United States	Record daily precipitation	44.5 mm (1.8 in)	41 of 100 (Notable)
Clovis	United States	Record daily precipitation	33.5 mm (1.3 in)	41 of 100 (Notable)
Inchanga (Sar)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	40 of 100 (Notable)
Greeley	United States	Record daily precipitation	30.5 mm (1.2 in)	40 of 100 (Notable)
Belair (State Flora Nursery)	Australia	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
St Marys Bowling Club	Australia	Record daily precipitation	54.4 mm (2.1 in)	39 of 100 (Notable)
Cortez	United States	Record daily snowfall	7.6 cm (3.0 in)	39 of 100 (Notable)
Derby Post Office	Australia	Record daily precipitation	38.0 mm (1.5 in)	38 of 100 (Notable)
Mason City	United States	Record daily precipitation	33.3 mm (1.3 in)	38 of 100 (Notable)
Limoeiro	Brazil	Record daily precipitation	50.0 mm (2.0 in)	37 of 100 (Notable)
Shoshone	United States	Record daily precipitation	41.1 mm (1.6 in)	37 of 100 (Notable)
St Petersburg	United States	Record high maximum temperature	32.2 C (90.0 F)	37 of 100 (Notable)
Red Cloud	United States	Record high minimum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Five Finger Lt STN	United States	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Ambrolauri	Georgia	Record daily precipitation	52.7 mm (2.1 in)	36 of 100 (Notable)
Collbran	United States	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Bedford	United States	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Second Valley (Spring Grove)	Australia	Record daily precipitation	30.4 mm (1.2 in)	35 of 100 (Notable)
Happy Valley Reservoir	Australia	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Prospect Reservoir	Australia	Record daily precipitation	28.0 mm (1.1 in)	35 of 100 (Notable)
Arhangelsk	Russia	Record low minimum temperature	-19.9 C (-3.8 F)	35 of 100 (Notable)

Counts by Type and Timescale

921 records

Records set or tied on 9 April 1978 by type: Highest daily maximum 200, Lowest daily maximum 77, Highest daily minimum 170, Lowest daily minimum 28, Heaviest daily rainfall 415, Heaviest daily snowfall 23, Deepest snow cover 8.

Records on 9 April 1978 by type
Record type	Records
Highest daily maximum	200
Lowest daily maximum	77
Highest daily minimum	170
Lowest daily minimum	28
Heaviest daily rainfall	415
Heaviest daily snowfall	23
Deepest snow cover	8

Records on 9 April 1978 by timescale: all-time 1, monthly 19, daily 901.

How Much Records Were Beaten By

761 broken records

Margins by which the 761 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 139.0. Ties are not counted.

Top 20 by Significance

9 April 1978

Top 20 records on 9 April 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 April 1978	Casterton (Warrock), AU	daily rain	66.6 mm (2.6 in)	44.8 mm (1.8 in)	72 years	70 of 100 (Major)
9 April 1978	Kearney 4 NE, US	daily rain	66.0 mm (2.6 in)	45.7 mm (1.8 in)	59 years	65 of 100 (Major)
9 April 1978	Port Pirie Nyrstar Comparison, AU	daily rain	42.0 mm (1.7 in)	20.4 mm (0.8 in)	87 years	63 of 100 (Major)
9 April 1978	Loup City, US	daily rain	56.4 mm (2.2 in)	43.7 mm (1.7 in)	51 years	63 of 100 (Major)
9 April 1978	Glenwood Spgs #2, US	daily rain	31.5 mm (1.2 in)	23.9 mm (0.9 in)	48 years	62 of 100 (Major)
9 April 1978	Moab, US	monthly rain	53.3 mm (2.1 in)	20.3 mm (0.8 in)	4 years	59 of 100 (Notable)
9 April 1978	Areia (Ufpb), BR	monthly rain	139.4 mm (5.5 in)	56.6 mm (2.2 in)	5 years	57 of 100 (Notable)
9 April 1978	Tarkastad (Pol), ZA	all-time rain	75.0 mm (3.0 in)	5.1 mm (0.20 in)	67 years	56 of 100 (Notable)
9 April 1978	American River, AU	daily rain	28.0 mm (1.1 in)	14.5 mm (0.6 in)	81 years	54 of 100 (Notable)
9 April 1978	Atlin, CA	daily snowfall	10.7 cm (4.2 in)	6.9 cm (2.7 in)	60 years	54 of 100 (Notable)
9 April 1978	Wisconsin Rapids, US	daily rain	45.7 mm (1.8 in)	32.0 mm (1.3 in)	24 years	54 of 100 (Notable)
9 April 1978	Shenandoah, US	monthly rain	72.9 mm (2.9 in)	30.2 mm (1.2 in)	8 years	53 of 100 (Notable)
9 April 1978	Little Port Walter, US	daily rain	127.8 mm (5.0 in)	91.5 mm (3.6 in)	32 years	53 of 100 (Notable)
9 April 1978	Leeukop, ZA	daily rain	69.5 mm (2.7 in)	44.1 mm (1.7 in)	47 years	52 of 100 (Notable)
9 April 1978	Delareyville (Mun), ZA	monthly rain	126.0 mm (5.0 in)	39.0 mm (1.5 in)	16 years	52 of 100 (Notable)
9 April 1978	Nikorcminda, GE	daily rain	53.8 mm (2.1 in)	26.4 mm (1.0 in)	32 years	51 of 100 (Notable)
9 April 1978	Carpina (Floresta Dos Leoes), BR	daily rain	95.4 mm (3.8 in)	60.6 mm (2.4 in)	20 years	50 of 100 (Notable)
9 April 1978	Chohataury, GE	daily rain	54.1 mm (2.1 in)	37.5 mm (1.5 in)	23 years	50 of 100 (Notable)
9 April 1978	D'Java, GE	daily rain	54.8 mm (2.2 in)	33.8 mm (1.3 in)	23 years	50 of 100 (Notable)
9 April 1978	Gustavus, US	daily rain	28.4 mm (1.1 in)	18.5 mm (0.7 in)	16 years	50 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 1978

Records set or tied on this calendar date in each year from 1793 to 1978. 1978 had 921 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 1978-04-09: 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 20	692
20 to 40	41
40 to 60	17
60 to 80	7
80 to 100	2
100 to 120	1
120 to 140	1