Weather Records on 1 May 1919

150 weather records were set or tied worldwide on 1 May 1919. Highest significance: Sydney (Observatory Hill), AU.

Key Facts for 1 May 1919

On 1 May 1919, 150 weather records were set or tied at long-record stations worldwide.
12 were record highs and 14 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 144 daily.
Sydney (Observatory Hill) set a monthly record high maximum temperature of 30.0 C (86.0 F) on 1 May 1919.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 444 records.

Record Map

150 stations

150 station records on 1 May 1919 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 1919: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sydney (Observatory Hill)	Australia	Record high maximum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Tumut (Wattle Cres)	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Mackay Post Office	Australia	Record daily precipitation	46.5 mm (1.8 in)	32 of 100 (Routine)
Sidi-Bel-Abbes	Algeria	Record low minimum temperature	-1.0 C (30.2 F)	31 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record high minimum temperature	16.9 C (62.4 F)	28 of 100 (Routine)
Nariel Creek (Simpson)	Australia	Record daily precipitation	26.2 mm (1.0 in)	27 of 100 (Routine)
Milan	Italy	Record low minimum temperature	3.8 C (38.8 F)	23 of 100 (Routine)
Yellowin	Australia	Record daily precipitation	32.0 mm (1.3 in)	22 of 100 (Routine)
Wien	Austria	Record low minimum temperature	1.4 C (34.5 F)	22 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record low minimum temperature	-23.3 C (-9.9 F)	22 of 100 (Routine)
Forbes (Camp Street)	Australia	Record high maximum temperature	28.3 C (82.9 F)	21 of 100 (Routine)
Arnsberg	Germany	Record low maximum temperature	5.5 C (41.9 F)	21 of 100 (Routine)
Middleton (Sar)	South Africa	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Gobarralong	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Geelong Sec	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Mandamar	Australia	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Bulgandra	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Belconnen (Weetangerra)	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Tarcutta Post Office	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Tarcutta	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Temora Ambulance Station	Australia	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Adelong Post Office	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Brungle (Rosemount)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Bungowannah Park	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Walbundrie (Crediton Street)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Ny City Cntrl Park	United States	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Burra (Poonunda)	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Tumbarumba 1	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Mundarlo (Yabtree)	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Coolamon Post Office	Australia	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Harkerville (Bos)	South Africa	Record daily precipitation	39.4 mm (1.6 in)	20 of 100 (Routine)
Somerset East	South Africa	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Philadelphia City	United States	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Walgett Council Depot	Australia	Record high minimum temperature	17.2 C (63.0 F)	19 of 100 (Routine)
Tumbarumba Post Office	Australia	Record daily precipitation	24.6 mm (1.0 in)	19 of 100 (Routine)
Beechworth Composite	Australia	Record daily precipitation	8.9 mm (0.35 in)	19 of 100 (Routine)
Cape Schanck Lighthouse	Australia	Record daily precipitation	20.6 mm (0.8 in)	19 of 100 (Routine)
Fort Beaufort	South Africa	Record daily precipitation	18.5 mm (0.7 in)	19 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	10.4 mm (0.4 in)	19 of 100 (Routine)
Barkly East	South Africa	Record daily precipitation	11.4 mm (0.4 in)	19 of 100 (Routine)
Killalpaninna	Australia	Record daily precipitation	5.3 mm (0.21 in)	18 of 100 (Routine)
Wantiool (Caithness)	Australia	Record daily precipitation	12.7 mm (0.5 in)	18 of 100 (Routine)
Grong Grong (Berembed)	Australia	Record daily precipitation	6.9 mm (0.27 in)	18 of 100 (Routine)
Mittagong Head Station	Australia	Record daily precipitation	6.9 mm (0.27 in)	18 of 100 (Routine)
Cudgewa North	Australia	Record daily precipitation	25.4 mm (1.0 in)	18 of 100 (Routine)
Jansenville	South Africa	Record daily precipitation	16.3 mm (0.6 in)	18 of 100 (Routine)
Michelago (Soglio)	Australia	Record daily precipitation	11.4 mm (0.4 in)	17 of 100 (Routine)
San Remo	Australia	Record daily precipitation	15.7 mm (0.6 in)	17 of 100 (Routine)
Harrisburg - Coop	United States	Record daily precipitation	28.2 mm (1.1 in)	17 of 100 (Routine)
Reading Wb City	United States	Record daily precipitation	24.4 mm (1.0 in)	17 of 100 (Routine)
Fort National	Algeria	Record low minimum temperature	1.0 C (33.8 F)	16 of 100 (Routine)
Beachport	Australia	Record daily precipitation	7.9 mm (0.31 in)	16 of 100 (Routine)
Barellan Post Office	Australia	Record daily precipitation	5.1 mm (0.20 in)	16 of 100 (Routine)
Jerilderie (Yanko Station)	Australia	Record daily precipitation	8.1 mm (0.32 in)	16 of 100 (Routine)
Neds Corner Homestead	Australia	Record daily precipitation	2.8 mm (0.11 in)	16 of 100 (Routine)
Chiltern (Post Office)	Australia	Record daily precipitation	6.9 mm (0.27 in)	16 of 100 (Routine)
Olands Norra Udde	Sweden	Record daily precipitation	5.5 mm (0.22 in)	16 of 100 (Routine)
World Trade Ctr	United States	Record daily precipitation	19.6 mm (0.8 in)	16 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record low minimum temperature	8.0 C (46.4 F)	15 of 100 (Routine)
Alice Springs Post Office	Australia	Record high minimum temperature	20.6 C (69.1 F)	15 of 100 (Routine)

Counts by Type and Timescale

150 records

Records set or tied on 1 May 1919 by type: Highest daily maximum 4, Lowest daily maximum 4, Highest daily minimum 8, Lowest daily minimum 10, Heaviest daily rainfall 121, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 1 May 1919 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	4
Highest daily minimum	8
Lowest daily minimum	10
Heaviest daily rainfall	121
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 1 May 1919 by timescale: all-time 0, monthly 6, daily 144.

How Much Records Were Beaten By

143 broken records

Margins by which the 143 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 30.5. Ties are not counted.

Top 20 by Significance

1 May 1919

Top 20 records on 1 May 1919 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1919	Sydney (Observatory Hill), AU	monthly high max	30.0 C (86.0 F)	1.4 C (2.5 F)	59 years	38 of 100 (Notable)
1 May 1919	Tumut (Wattle Cres), AU	daily rain	33.0 mm (1.3 in)	27.7 mm (1.1 in)	12 years	35 of 100 (Notable)
1 May 1919	Mackay Post Office, AU	daily rain	46.5 mm (1.8 in)	30.5 mm (1.2 in)	28 years	32 of 100 (Routine)
1 May 1919	Sidi-Bel-Abbes, DZ	monthly low min	-1.0 C (30.2 F)	1.8 C (3.2 F)	37 years	31 of 100 (Routine)
1 May 1919	Wagga Wagga (Kooringal), AU	monthly high min	16.9 C (62.4 F)	1.3 C (2.3 F)	37 years	28 of 100 (Routine)
1 May 1919	Nariel Creek (Simpson), AU	daily rain	26.2 mm (1.0 in)	20.6 mm (0.8 in)	26 years	27 of 100 (Routine)
1 May 1919	Milan, IT	daily low min	3.8 C (38.8 F)	0.8 C (1.4 F)	38 years	23 of 100 (Routine)
1 May 1919	Yellowin, AU	daily rain	32.0 mm (1.3 in)	19.8 mm (0.8 in)	12 years	22 of 100 (Routine)
1 May 1919	Wien, AT	daily low min	1.4 C (34.5 F)	0.1 C (0.2 F)	53 years	22 of 100 (Routine)
1 May 1919	Ilulissat (Jakobshavn), GL	monthly low min	-23.3 C (-9.9 F)	2.8 C (5.0 F)	11 years	22 of 100 (Routine)
1 May 1919	Forbes (Camp Street), AU	daily high max	28.3 C (82.9 F)	2.2 C (4.0 F)	38 years	21 of 100 (Routine)
1 May 1919	Arnsberg, DE	monthly low max	5.5 C (41.9 F)	0.3 C (0.5 F)	23 years	21 of 100 (Routine)
1 May 1919	Middleton (Sar), ZA	daily rain	23.9 mm (0.9 in)	20.3 mm (0.8 in)	32 years	20 of 100 (Routine)
1 May 1919	Gobarralong, AU	daily rain	14.5 mm (0.6 in)	13.2 mm (0.5 in)	26 years	20 of 100 (Routine)
1 May 1919	Geelong Sec, AU	daily rain	17.8 mm (0.7 in)	9.4 mm (0.37 in)	31 years	20 of 100 (Routine)
1 May 1919	Mandamar, AU	daily rain	9.7 mm (0.38 in)	9.7 mm (0.38 in)	32 years	20 of 100 (Routine)
1 May 1919	Bulgandra, AU	daily rain	14.5 mm (0.6 in)	14.5 mm (0.6 in)	31 years	20 of 100 (Routine)
1 May 1919	Belconnen (Weetangerra), AU	daily rain	13.7 mm (0.5 in)	12.9 mm (0.5 in)	24 years	20 of 100 (Routine)
1 May 1919	Tarcutta Post Office, AU	daily rain	18.3 mm (0.7 in)	14.5 mm (0.6 in)	12 years	20 of 100 (Routine)
1 May 1919	Tarcutta, AU	daily rain	16.3 mm (0.6 in)	12.7 mm (0.5 in)	12 years	20 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

1795 to 1919

Records set or tied on this calendar date in each year from 1795 to 1919. 1919 had 150 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1919-05-01: 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 5	90
5 to 10	27
10 to 15	13
15 to 20	8
20 to 25	3
25 to 30	1
30 to 35	1