Weather Records on 30 March 1978

1,017 weather records were set or tied worldwide on 30 March 1978. Highest significance: Wanless, CA.

Key Facts for 30 March 1978

On 30 March 1978, 1,017 weather records were set or tied at long-record stations worldwide.
711 were record highs and 43 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 145 monthly and 872 daily.
Wanless set a daily record precipitation of 25.4 mm (1.0 in) on 30 March 1978.
Across 162 earlier years (1796 to 2026) the same calendar date averaged 471 records.

Record Map

1,017 stations

1,017 station records on 30 March 1978 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 March 1978: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wanless	Canada	Record daily precipitation	25.4 mm (1.0 in)	56 of 100 (Notable)
Wanless	Canada	Record daily snowfall	25.4 cm (10.0 in)	56 of 100 (Notable)
Inyokern	United States	Record daily precipitation	25.4 mm (1.0 in)	54 of 100 (Notable)
Pedro Barros	Brazil	Record daily precipitation	99.0 mm (3.9 in)	50 of 100 (Notable)
Richland	United States	Record high minimum temperature	11.7 C (53.1 F)	47 of 100 (Notable)
Elko Rgnl AP	United States	Record high minimum temperature	10.0 C (50.0 F)	46 of 100 (Notable)
Hawthorne AP	United States	Record high minimum temperature	13.3 C (55.9 F)	45 of 100 (Notable)
Cape Leveque	Australia	Record daily precipitation	76.0 mm (3.0 in)	44 of 100 (Notable)
Wessington Springs	United States	Record high maximum temperature	29.4 C (84.9 F)	44 of 100 (Notable)
Gooding 2 S	United States	Record high minimum temperature	10.6 C (51.1 F)	44 of 100 (Notable)
Walgett (Dungalear)	Australia	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Petrusville (Pol)	South Africa	Record daily precipitation	56.0 mm (2.2 in)	42 of 100 (Notable)
Catemaco	Mexico	Record low minimum temperature	6.7 C (44.1 F)	41 of 100 (Notable)
The Cliff	South Africa	Record daily precipitation	101.2 mm (4.0 in)	41 of 100 (Notable)
Ellenburg Depot	United States	Record snow depth	81.3 cm (32.0 in)	41 of 100 (Notable)
Usina Amalia	Brazil	Record daily precipitation	69.3 mm (2.7 in)	40 of 100 (Notable)
Campbell (Mun)	South Africa	Record daily precipitation	40.4 mm (1.6 in)	40 of 100 (Notable)
Caldwell	United States	Record high minimum temperature	12.2 C (54.0 F)	40 of 100 (Notable)
Shoshone 1 WNW	United States	Record high minimum temperature	9.4 C (48.9 F)	40 of 100 (Notable)
Crow Agency	United States	Record high maximum temperature	28.9 C (84.0 F)	40 of 100 (Notable)
Keg River	Canada	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Fossil Downs	Australia	Record daily precipitation	48.0 mm (1.9 in)	38 of 100 (Notable)
Cooranbong (Avondale)	Australia	Record daily precipitation	31.2 mm (1.2 in)	38 of 100 (Notable)
Basin	United States	Record high maximum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
San Nicolas Is	United States	Record daily precipitation	33.5 mm (1.3 in)	38 of 100 (Notable)
Bliss 4 NW	United States	Record high minimum temperature	12.2 C (54.0 F)	37 of 100 (Notable)
Kellogg	United States	Record high maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Cascade 5 S	United States	Record high maximum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Treherne	Canada	Record daily snowfall	6.4 cm (2.5 in)	36 of 100 (Notable)
Fallon Exp STN	United States	Record high minimum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Mulyie	Australia	Record daily precipitation	55.6 mm (2.2 in)	35 of 100 (Notable)
Mount Isa Mine	Australia	Record daily precipitation	68.2 mm (2.7 in)	35 of 100 (Notable)
St. Petersburg	Russia	Record high minimum temperature	5.2 C (41.4 F)	35 of 100 (Notable)
Susanville 2SW	United States	Record high minimum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
Glenwood Spgs #2	United States	Record high minimum temperature	4.4 C (39.9 F)	35 of 100 (Notable)
Austin #2	United States	Record high minimum temperature	7.2 C (45.0 F)	35 of 100 (Notable)
Drain	United States	Record high minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
De Grey	Australia	Record daily precipitation	49.0 mm (1.9 in)	34 of 100 (Routine)
Goondiwindi Post Office	Australia	Record high minimum temperature	22.0 C (71.6 F)	34 of 100 (Routine)
Pacatuba	Brazil	Record daily precipitation	40.2 mm (1.6 in)	34 of 100 (Routine)
Adiake	Cote D'Ivoire	Record daily precipitation	52.4 mm (2.1 in)	34 of 100 (Routine)
Gertruida	South Africa	Record daily precipitation	54.0 mm (2.1 in)	34 of 100 (Routine)
Ft Collins	United States	Record high maximum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
New Meadows Rs	United States	Record high maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Imlay	United States	Record high minimum temperature	12.2 C (54.0 F)	34 of 100 (Routine)
Vale	United States	Record high minimum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Rupert 3 WSW	United States	Record high maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Wallace	United States	Record high maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Wells	United States	Record high minimum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Prineville	United States	Record high minimum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Prospect 2 SW	United States	Record high minimum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Mallina	Australia	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Mongagua	Brazil	Record daily precipitation	82.4 mm (3.2 in)	32 of 100 (Routine)
Lyon - St Exupery	France	Record daily precipitation	25.0 mm (1.0 in)	32 of 100 (Routine)
Table.Mtn Woodhead Tunnel	South Africa	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
Hollister	United States	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Lima	United States	Record high minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Riddle	United States	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Riverside 7 SSW	United States	Record high minimum temperature	8.3 C (46.9 F)	32 of 100 (Routine)
Wallowa	United States	Record high minimum temperature	7.2 C (45.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

1,017 records

Records set or tied on 30 March 1978 by type: Highest daily maximum 279, Lowest daily maximum 28, Highest daily minimum 432, Lowest daily minimum 15, Heaviest daily rainfall 250, Heaviest daily snowfall 7, Deepest snow cover 6.

Records on 30 March 1978 by type
Record type	Records
Highest daily maximum	279
Lowest daily maximum	28
Highest daily minimum	432
Lowest daily minimum	15
Heaviest daily rainfall	250
Heaviest daily snowfall	7
Deepest snow cover	6

Records on 30 March 1978 by timescale: all-time 0, monthly 145, daily 872.

How Much Records Were Beaten By

805 broken records

Margins by which the 805 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

30 March 1978

Top 20 records on 30 March 1978 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 March 1978	Wanless, CA	daily rain	25.4 mm (1.0 in)	15.2 mm (0.6 in)	40 years	56 of 100 (Notable)
30 March 1978	Wanless, CA	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	40 years	56 of 100 (Notable)
30 March 1978	Inyokern, US	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	36 years	54 of 100 (Notable)
30 March 1978	Pedro Barros, BR	daily rain	99.0 mm (3.9 in)	61.8 mm (2.4 in)	28 years	50 of 100 (Notable)
30 March 1978	Richland, US	monthly high min	11.7 C (53.1 F)	2.3 C (4.1 F)	82 years	47 of 100 (Notable)
30 March 1978	Elko Rgnl AP, US	monthly high min	10.0 C (50.0 F)	1.1 C (2.0 F)	84 years	46 of 100 (Notable)
30 March 1978	Hawthorne AP, US	monthly high min	13.3 C (55.9 F)	1.1 C (2.0 F)	82 years	45 of 100 (Notable)
30 March 1978	Cape Leveque, AU	daily rain	76.0 mm (3.0 in)	59.5 mm (2.3 in)	59 years	44 of 100 (Notable)
30 March 1978	Wessington Springs, US	monthly high max	29.4 C (84.9 F)	1.6 C (2.9 F)	84 years	44 of 100 (Notable)
30 March 1978	Gooding 2 S, US	monthly high min	10.6 C (51.1 F)	2.8 C (5.0 F)	68 years	44 of 100 (Notable)
30 March 1978	Walgett (Dungalear), AU	daily rain	66.0 mm (2.6 in)	44.4 mm (1.7 in)	15 years	42 of 100 (Notable)
30 March 1978	Petrusville (Pol), ZA	daily rain	56.0 mm (2.2 in)	25.5 mm (1.0 in)	51 years	42 of 100 (Notable)
30 March 1978	Catemaco, MX	daily low min	6.7 C (44.1 F)	8.3 C (14.9 F)	20 years	41 of 100 (Notable)
30 March 1978	The Cliff, ZA	monthly rain	101.2 mm (4.0 in)	20.9 mm (0.8 in)	26 years	41 of 100 (Notable)
30 March 1978	Ellenburg Depot, US	daily snow depth	81.3 cm (32.0 in)	22.9 cm (9.0 in)	78 years	41 of 100 (Notable)
30 March 1978	Usina Amalia, BR	daily rain	69.3 mm (2.7 in)	42.3 mm (1.7 in)	24 years	40 of 100 (Notable)
30 March 1978	Campbell (Mun), ZA	daily rain	40.4 mm (1.6 in)	8.4 mm (0.33 in)	83 years	40 of 100 (Notable)
30 March 1978	Caldwell, US	monthly high min	12.2 C (54.0 F)	1.1 C (2.0 F)	71 years	40 of 100 (Notable)
30 March 1978	Shoshone 1 WNW, US	monthly high min	9.4 C (48.9 F)	1.6 C (2.9 F)	68 years	40 of 100 (Notable)
30 March 1978	Crow Agency, US	monthly high max	28.9 C (84.0 F)	1.7 C (3.1 F)	68 years	40 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

1796 to 1978

Records set or tied on this calendar date in each year from 1796 to 1978. 1978 had 1,017 records.

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

Records on 03-30 in each year
Year	Records
1796	1
1805	1
1808	1
1815	1
1822	1
1830	2
1834	1
1840	1
1842	1
1847	1
1848	1
1854	1
1856	2
1859	1
1860	1
1862	1
1863	2
1865	4
1869	1
1872	6
1874	1
1881	4
1882	3
1883	2
1884	2
1885	1
1886	1
1887	5
1888	2
1890	4
1892	4
1894	2
1896	3
1897	1
1898	5
1899	2
1900	5
1901	6
1902	9
1903	8
1904	14
1905	35
1906	9
1907	28
1908	12
1909	18
1910	68
1911	45
1912	25
1913	31
1914	20
1915	78
1916	19
1917	248
1918	29
1919	42
1920	20
1921	32
1922	89
1923	229
1924	215
1925	90
1926	273
1927	80
1928	209
1929	99
1930	215
1931	254
1932	198
1933	382
1934	236
1935	187
1936	881
1937	262
1938	690
1939	305
1940	466
1941	438
1942	257
1943	928
1944	823
1945	676
1946	536
1947	1,000
1948	363
1949	795
1950	616
1951	569
1952	265
1953	432
1954	743
1955	437
1956	500
1957	330
1958	288
1959	398
1960	431
1961	404
1962	578
1963	1,010
1964	1,420
1965	376
1966	759
1967	1,261
1968	736
1969	1,372
1970	1,040
1971	490
1972	384
1973	1,089
1974	895
1975	1,255
1976	619
1977	1,627
1978	1,017
1979	753
1980	762
1981	898
1982	764
1983	624
1984	756
1985	1,331
1986	1,533
1987	1,850
1988	635
1989	1,063
1990	897
1991	821
1992	611
1993	712
1994	767
1995	920
1996	781
1997	911
1998	2,464
1999	708
2000	631
2001	840
2002	878
2003	1,472
2004	1,298
2005	683
2006	689
2007	1,265
2008	1,100
2009	750
2010	933
2011	670
2012	743
2013	691
2014	776
2015	1,194
2016	596
2017	1,267
2018	433
2019	662
2020	464
2021	1,013
2022	576
2023	1,107
2024	431
2025	956
2026	1,210

Download the Data

Data for records on 1978-03-30: 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	794
50 to 100	7
100 to 150	0
150 to 200	3
200 to 250	1