Weather Records on 1 April 1918

51 weather records were set or tied worldwide on 1 April 1918. Highest significance: Swift Current, CA.

Key Facts for 1 April 1918

On 1 April 1918, 51 weather records were set or tied at long-record stations worldwide.
35 were record highs and 1 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 51 daily.
Swift Current set a daily record snowfall of 10.2 cm (4.0 in) on 1 April 1918.
Across 160 earlier years (1803 to 2026) the same calendar date averaged 480 records.

Record Map

51 stations

51 station records on 1 April 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 April 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Swift Current	Canada	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Welland	Canada	Record daily precipitation	46.0 mm (1.8 in)	35 of 100 (Notable)
Bombala (Therry Street)	Australia	Record daily precipitation	29.5 mm (1.2 in)	34 of 100 (Routine)
Wulgulmerang	Australia	Record daily precipitation	48.3 mm (1.9 in)	33 of 100 (Routine)
Brantford	Canada	Record high minimum temperature	8.9 C (48.0 F)	29 of 100 (Routine)
Lakefield	Canada	Record high minimum temperature	5.0 C (41.0 F)	23 of 100 (Routine)
Concord	United States	Record high maximum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Swift Current	Canada	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Lucknow	Canada	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Ottawa	Canada	Record high minimum temperature	3.9 C (39.0 F)	20 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Montreal McGill	Canada	Record high minimum temperature	5.6 C (42.1 F)	19 of 100 (Routine)
Jacksonville Wb City	United States	Record daily precipitation	35.1 mm (1.4 in)	19 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	15.0 C (59.0 F)	18 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	9.8 mm (0.39 in)	18 of 100 (Routine)
Yackandandah	Australia	Record daily precipitation	30.2 mm (1.2 in)	16 of 100 (Routine)
Burlington	United States	Record high maximum temperature	21.1 C (70.0 F)	16 of 100 (Routine)
Ny City Cntrl Park	United States	Record high minimum temperature	10.6 C (51.1 F)	16 of 100 (Routine)
Southampton	Canada	Record daily precipitation	17.0 mm (0.7 in)	15 of 100 (Routine)
Portland	United States	Record high maximum temperature	17.2 C (63.0 F)	15 of 100 (Routine)
Renfrew	Canada	Record high minimum temperature	8.3 C (46.9 F)	14 of 100 (Routine)
Storrs	United States	Record high maximum temperature	21.7 C (71.1 F)	14 of 100 (Routine)
Medicine Hat A	Canada	Record daily precipitation	3.6 mm (0.14 in)	13 of 100 (Routine)
Blue Hill Coop	United States	Record high maximum temperature	22.2 C (72.0 F)	13 of 100 (Routine)
London South	Canada	Record high minimum temperature	8.3 C (46.9 F)	12 of 100 (Routine)
Dimboola	Australia	Record daily precipitation	2.0 mm (0.08 in)	11 of 100 (Routine)
Barkerville	Canada	Record low maximum temperature	-3.9 C (25.0 F)	11 of 100 (Routine)
Alton	Canada	Record daily precipitation	10.4 mm (0.4 in)	11 of 100 (Routine)
Bjuraker	Sweden	Record daily precipitation	10.3 mm (0.4 in)	11 of 100 (Routine)
Northfield	United States	Record high maximum temperature	21.1 C (70.0 F)	11 of 100 (Routine)
Medicine Hat A	Canada	Record daily snowfall	3.6 cm (1.4 in)	9 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	5.6 C (42.1 F)	9 of 100 (Routine)
Guelph Oac	Canada	Record high maximum temperature	18.3 C (64.9 F)	8 of 100 (Routine)
Alton	Canada	Record high maximum temperature	17.8 C (64.0 F)	8 of 100 (Routine)
Haliburton A	Canada	Record high minimum temperature	4.4 C (39.9 F)	8 of 100 (Routine)
Lindsay	Canada	Record high minimum temperature	5.0 C (41.0 F)	8 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	6.1 C (43.0 F)	7 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	7.2 C (45.0 F)	7 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	13.3 C (55.9 F)	7 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	10.0 C (50.0 F)	6 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	7.2 C (45.0 F)	5 of 100 (Routine)
Alton	Canada	Record high minimum temperature	4.4 C (39.9 F)	5 of 100 (Routine)
Coldwater	Canada	Record high maximum temperature	12.2 C (54.0 F)	3 of 100 (Routine)
Fredericton Unb	Canada	Record high maximum temperature	13.3 C (55.9 F)	3 of 100 (Routine)
Stonecliffe	Canada	Record high minimum temperature	2.2 C (36.0 F)	1 of 100 (Routine)
Beatrice	Canada	Record high minimum temperature	2.2 C (36.0 F)	1 of 100 (Routine)
Gravenhurst	Canada	Record high minimum temperature	1.7 C (35.1 F)	1 of 100 (Routine)
Port Dover	Canada	Record high minimum temperature	5.6 C (42.1 F)	1 of 100 (Routine)
Quebec	Canada	Record high minimum temperature	1.7 C (35.1 F)	1 of 100 (Routine)
Montreal McGill	Canada	Record high maximum temperature	11.7 C (53.1 F)	1 of 100 (Routine)
Newport	United States	Record high maximum temperature	30.0 C (86.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

51 records

Records set or tied on 1 April 1918 by type: Highest daily maximum 13, Lowest daily maximum 1, Highest daily minimum 22, Heaviest daily rainfall 13, Heaviest daily snowfall 2.

Records on 1 April 1918 by type
Record type	Records
Highest daily maximum	13
Lowest daily maximum	1
Highest daily minimum	22
Lowest daily minimum	0
Heaviest daily rainfall	13
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 1 April 1918 by timescale: all-time 0, monthly 0, daily 51.

How Much Records Were Beaten By

43 broken records

Margins by which the 43 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.0. Ties are not counted.

Top 20 by Significance

1 April 1918

Top 20 records on 1 April 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 April 1918	Swift Current, CA	daily snowfall	10.2 cm (4.0 in)	7.2 cm (2.8 in)	25 years	35 of 100 (Notable)
1 April 1918	Welland, CA	daily rain	46.0 mm (1.8 in)	24.7 mm (1.0 in)	0 years	35 of 100 (Notable)
1 April 1918	Bombala (Therry Street), AU	daily rain	29.5 mm (1.2 in)	16.8 mm (0.7 in)	24 years	34 of 100 (Routine)
1 April 1918	Wulgulmerang, AU	daily rain	48.3 mm (1.9 in)	24.2 mm (1.0 in)	29 years	33 of 100 (Routine)
1 April 1918	Brantford, CA	daily high min	8.9 C (48.0 F)	7.8 C (14.0 F)	26 years	29 of 100 (Routine)
1 April 1918	Lakefield, CA	daily high min	5.0 C (41.0 F)	3.9 C (7.0 F)	40 years	23 of 100 (Routine)
1 April 1918	Concord, US	daily high max	23.9 C (75.0 F)	3.9 C (7.0 F)	37 years	22 of 100 (Routine)
1 April 1918	Swift Current, CA	daily rain	10.2 mm (0.4 in)	7.2 mm (0.28 in)	25 years	20 of 100 (Routine)
1 April 1918	Lucknow, CA	daily rain	22.1 mm (0.9 in)	6.9 mm (0.27 in)	26 years	20 of 100 (Routine)
1 April 1918	Ottawa, CA	daily high min	3.9 C (39.0 F)	2.2 C (4.0 F)	40 years	20 of 100 (Routine)
1 April 1918	Toledo Blade, US	daily high min	11.7 C (53.1 F)	4.5 C (8.1 F)	24 years	20 of 100 (Routine)
1 April 1918	Montreal McGill, CA	daily high min	5.6 C (42.1 F)	2.8 C (5.0 F)	31 years	19 of 100 (Routine)
1 April 1918	Jacksonville Wb City, US	daily rain	35.1 mm (1.4 in)	9.4 mm (0.37 in)	30 years	19 of 100 (Routine)
1 April 1918	Kingston Queens U, CA	daily high max	15.0 C (59.0 F)	1.7 C (3.1 F)	39 years	18 of 100 (Routine)
1 April 1918	Tranebjerg, DK	daily rain	9.8 mm (0.39 in)	4.2 mm (0.17 in)	0 years	18 of 100 (Routine)
1 April 1918	Yackandandah, AU	daily rain	30.2 mm (1.2 in)	7.6 mm (0.30 in)	17 years	16 of 100 (Routine)
1 April 1918	Burlington, US	daily high max	21.1 C (70.0 F)	2.8 C (5.0 F)	31 years	16 of 100 (Routine)
1 April 1918	Ny City Cntrl Park, US	daily high min	10.6 C (51.1 F)	1.2 C (2.2 F)	31 years	16 of 100 (Routine)
1 April 1918	Southampton, CA	daily rain	17.0 mm (0.7 in)	5.8 mm (0.23 in)	1 year	15 of 100 (Routine)
1 April 1918	Portland, US	daily high max	17.2 C (63.0 F)	2.2 C (4.0 F)	23 years	15 of 100 (Routine)

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

1803 to 1918

Records set or tied on this calendar date in each year from 1803 to 1918. 1918 had 51 records.

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

Records on 04-01 in each year
Year	Records
1803	1
1805	1
1808	1
1813	1
1815	3
1819	1
1830	2
1847	2
1848	1
1850	1
1855	3
1856	1
1861	2
1862	2
1865	1
1869	2
1872	1
1873	1
1874	2
1876	1
1878	3
1879	2
1881	1
1885	1
1887	2
1888	2
1889	2
1891	5
1892	1
1893	2
1896	4
1897	5
1898	3
1899	4
1900	4
1901	4
1902	4
1903	12
1904	29
1905	10
1906	7
1907	24
1908	5
1909	13
1910	26
1911	27
1912	31
1913	35
1914	37
1915	25
1916	35
1917	80
1918	51
1919	165
1920	65
1921	46
1922	98
1923	319
1924	257
1925	111
1926	234
1927	326
1928	194
1929	336
1930	153
1931	846
1932	292
1933	188
1934	153
1935	424
1936	1,248
1937	192
1938	461
1939	226
1940	840
1941	285
1942	209
1943	319
1944	266
1945	880
1946	1,172
1947	390
1948	590
1949	308
1950	455
1951	406
1952	419
1953	249
1954	493
1955	288
1956	744
1957	314
1958	535
1959	821
1960	295
1961	496
1962	652
1963	1,123
1964	951
1965	678
1966	689
1967	928
1968	377
1969	611
1970	894
1971	384
1972	510
1973	680
1974	894
1975	1,806
1976	767
1977	524
1978	1,013
1979	738
1980	797
1981	1,115
1982	884
1983	643
1984	662
1985	826
1986	982
1987	1,762
1988	1,259
1989	1,098
1990	952
1991	693
1992	981
1993	783
1994	739
1995	1,056
1996	996
1997	1,255
1998	1,703
1999	1,341
2000	690
2001	575
2002	985
2003	1,366
2004	926
2005	1,086
2006	929
2007	963
2008	1,457
2009	846
2010	1,022
2011	1,105
2012	1,327
2013	719
2014	657
2015	606
2016	842
2017	792
2018	870
2019	674
2020	719
2021	790
2022	853
2023	1,069
2024	788
2025	779
2026	1,042

Download the Data

Data for records on 1918-04-01: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	38
10 to 20	2
20 to 30	2
30 to 40	0
40 to 50	0
50 to 60	0
60 to 70	0
70 to 80	1