Weather Records on 1 May 2001

1,106 weather records were set or tied worldwide on 1 May 2001. Highest significance: Kurnell (Caltex Oil Refinery), AU.

Key Facts for 1 May 2001

On 1 May 2001, 1,106 weather records were set or tied at long-record stations worldwide.
645 were record highs and 179 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 33 monthly and 1,073 daily.
Kurnell (Caltex Oil Refinery) set a monthly record daily precipitation of 143.8 mm (5.7 in) on 1 May 2001.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 438 records.

Record Map

1,106 stations

1,106 station records on 1 May 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kurnell (Caltex Oil Refinery)	Australia	Record daily precipitation	143.8 mm (5.7 in)	65 of 100 (Major)
Postmasburg	South Africa	Record daily precipitation	49.3 mm (1.9 in)	62 of 100 (Major)
Hillston Airport	Australia	Record daily precipitation	46.8 mm (1.8 in)	56 of 100 (Notable)
El Obeid	Sudan	Record daily precipitation	62.2 mm (2.4 in)	54 of 100 (Notable)
Ross Dam	United States	Record daily precipitation	39.4 mm (1.6 in)	54 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	28.3 C (82.9 F)	46 of 100 (Notable)
Haapajarvi Valioja Nokkous	Finland	Record daily precipitation	25.0 mm (1.0 in)	46 of 100 (Notable)
Beaver Dam Wwtp	United States	Record high minimum temperature	14.4 C (57.9 F)	45 of 100 (Notable)
Chilton	United States	Record high minimum temperature	15.6 C (60.1 F)	45 of 100 (Notable)
Cunnyana	Australia	Record daily precipitation	80.0 mm (3.1 in)	44 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	28.3 C (82.9 F)	44 of 100 (Notable)
Nambi	Australia	Record daily precipitation	25.1 mm (1.0 in)	43 of 100 (Notable)
Ny City Cntrl Park	United States	Record high maximum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Syktyvkar	Russia	Record high minimum temperature	11.0 C (51.8 F)	42 of 100 (Notable)
Bonneville Dam	United States	Record daily precipitation	59.7 mm (2.4 in)	42 of 100 (Notable)
Katoota	Australia	Record daily precipitation	51.0 mm (2.0 in)	41 of 100 (Notable)
1 N McLeansboro	United States	Record high maximum temperature	32.2 C (90.0 F)	41 of 100 (Notable)
Titonka	United States	Record daily precipitation	55.6 mm (2.2 in)	41 of 100 (Notable)
Government Camp	United States	Record daily precipitation	39.1 mm (1.5 in)	41 of 100 (Notable)
Spearfish	United States	Record high maximum temperature	30.6 C (87.1 F)	41 of 100 (Notable)
Lorna Glen	Australia	Record daily precipitation	53.0 mm (2.1 in)	40 of 100 (Notable)
Little Bay (the Coast Golf Clu	Australia	Record daily precipitation	72.4 mm (2.9 in)	40 of 100 (Notable)
Beaver Is	United States	Record high maximum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Eldorado Springs	United States	Record high minimum temperature	17.2 C (63.0 F)	39 of 100 (Notable)
Rainier Paradise Rs	United States	Record daily snowfall	40.6 cm (16.0 in)	38 of 100 (Notable)
Clover Valley	United States	Record low minimum temperature	-8.3 C (17.1 F)	37 of 100 (Notable)
Buckley 1 NE	United States	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Mauston 1 SE	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Detroit Dam	United States	Record daily precipitation	45.5 mm (1.8 in)	36 of 100 (Notable)
Rainer Ohanapecosh	United States	Record daily precipitation	35.1 mm (1.4 in)	36 of 100 (Notable)
Dandaloo (Kelvin)	Australia	Record daily precipitation	40.0 mm (1.6 in)	35 of 100 (Notable)
Guangzhou	China	Record daily precipitation	112.3 mm (4.4 in)	35 of 100 (Notable)
Mittenwald-Buckelwiesen	Germany	Record high minimum temperature	13.5 C (56.3 F)	35 of 100 (Notable)
Rio Lagartos	Mexico	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Indiga	Russia	Record high maximum temperature	15.1 C (59.2 F)	35 of 100 (Notable)
Centennial 1NE	United States	Record high minimum temperature	5.6 C (42.1 F)	35 of 100 (Notable)
Raymond Terrace (Kinross)	Australia	Record daily precipitation	28.8 mm (1.1 in)	34 of 100 (Routine)
Salzburg	Austria	Record high maximum temperature	28.8 C (83.8 F)	34 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Walden	United States	Record high minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Stevensville	United States	Record low minimum temperature	-8.9 C (16.0 F)	34 of 100 (Routine)
Diablo Dam	United States	Record daily precipitation	39.1 mm (1.5 in)	34 of 100 (Routine)
Stehekin 4 NW	United States	Record low maximum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Kaliningrad	Russia	Record high minimum temperature	13.5 C (56.3 F)	33 of 100 (Routine)
Saguache	United States	Record high maximum temperature	27.2 C (81.0 F)	33 of 100 (Routine)
Marion Forks Fish Hatchery	United States	Record daily precipitation	33.8 mm (1.3 in)	33 of 100 (Routine)
Mud Mtn Dam	United States	Record daily precipitation	26.4 mm (1.0 in)	33 of 100 (Routine)
Rainier Paradise Rs	United States	Record daily precipitation	47.8 mm (1.9 in)	33 of 100 (Routine)
Stampede Pass	United States	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Alpena Co Rgnl AP	United States	Record high minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	27.1 C (80.8 F)	32 of 100 (Routine)
Suchixtlahuaca -Quiotep-	Mexico	Record daily precipitation	69.9 mm (2.8 in)	32 of 100 (Routine)
A Coruna	Spain	Record daily precipitation	34.2 mm (1.3 in)	32 of 100 (Routine)
Hampton	United States	Record daily precipitation	43.9 mm (1.7 in)	32 of 100 (Routine)
Tottenham Post Office	Australia	Record daily precipitation	41.0 mm (1.6 in)	31 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record high maximum temperature	27.4 C (81.3 F)	31 of 100 (Routine)
Beito	Norway	Record snow depth	68.0 cm (26.8 in)	31 of 100 (Routine)
Daroca	Spain	Record low minimum temperature	-0.4 C (31.3 F)	31 of 100 (Routine)
Falls Village	United States	Record high maximum temperature	30.6 C (87.1 F)	31 of 100 (Routine)
Mt Carroll	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

1,106 records

Records set or tied on 1 May 2001 by type: Highest daily maximum 365, Lowest daily maximum 101, Highest daily minimum 280, Lowest daily minimum 78, Heaviest daily rainfall 266, Heaviest daily snowfall 11, Deepest snow cover 5.

Records on 1 May 2001 by type
Record type	Records
Highest daily maximum	365
Lowest daily maximum	101
Highest daily minimum	280
Lowest daily minimum	78
Heaviest daily rainfall	266
Heaviest daily snowfall	11
Deepest snow cover	5

Records on 1 May 2001 by timescale: all-time 0, monthly 33, daily 1,073.

How Much Records Were Beaten By

888 broken records

Margins by which the 888 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 200.0. Ties are not counted.

Top 20 by Significance

1 May 2001

Top 20 records on 1 May 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 2001	Kurnell (Caltex Oil Refinery), AU	monthly rain	143.8 mm (5.7 in)	66.3 mm (2.6 in)	38 years	65 of 100 (Major)
1 May 2001	Postmasburg, ZA	daily rain	49.3 mm (1.9 in)	29.2 mm (1.1 in)	76 years	62 of 100 (Major)
1 May 2001	Hillston Airport, AU	daily rain	46.8 mm (1.8 in)	26.2 mm (1.0 in)	40 years	56 of 100 (Notable)
1 May 2001	El Obeid, SD	monthly rain	62.2 mm (2.4 in)	37.3 mm (1.5 in)	0 years	54 of 100 (Notable)
1 May 2001	Ross Dam, US	daily rain	39.4 mm (1.6 in)	25.9 mm (1.0 in)	38 years	54 of 100 (Notable)
1 May 2001	Kremsmuenster, AT	daily high max	28.3 C (82.9 F)	3.3 C (5.9 F)	109 years	46 of 100 (Notable)
1 May 2001	Haapajarvi Valioja Nokkous, FI	daily rain	25.0 mm (1.0 in)	20.4 mm (0.8 in)	10 years	46 of 100 (Notable)
1 May 2001	Beaver Dam Wwtp, US	daily high min	14.4 C (57.9 F)	2.7 C (4.9 F)	106 years	45 of 100 (Notable)
1 May 2001	Chilton, US	daily high min	15.6 C (60.1 F)	2.8 C (5.0 F)	101 years	45 of 100 (Notable)
1 May 2001	Cunnyana, AU	daily rain	80.0 mm (3.1 in)	68.4 mm (2.7 in)	4 years	44 of 100 (Notable)
1 May 2001	Charlevoix, US	daily high max	28.3 C (82.9 F)	2.7 C (4.9 F)	101 years	44 of 100 (Notable)
1 May 2001	Nambi, AU	daily rain	25.1 mm (1.0 in)	18.7 mm (0.7 in)	31 years	43 of 100 (Notable)
1 May 2001	Ny City Cntrl Park, US	daily high max	30.6 C (87.1 F)	1.7 C (3.1 F)	101 years	43 of 100 (Notable)
1 May 2001	Syktyvkar, RU	daily high min	11.0 C (51.8 F)	1.0 C (1.8 F)	111 years	42 of 100 (Notable)
1 May 2001	Bonneville Dam, US	monthly rain	59.7 mm (2.4 in)	10.9 mm (0.4 in)	40 years	42 of 100 (Notable)
1 May 2001	Katoota, AU	daily rain	51.0 mm (2.0 in)	27.6 mm (1.1 in)	40 years	41 of 100 (Notable)
1 May 2001	1 N McLeansboro, US	daily high max	32.2 C (90.0 F)	0.5 C (0.9 F)	100 years	41 of 100 (Notable)
1 May 2001	Titonka, US	daily rain	55.6 mm (2.2 in)	25.1 mm (1.0 in)	50 years	41 of 100 (Notable)
1 May 2001	Government Camp, US	daily rain	39.1 mm (1.5 in)	17.5 mm (0.7 in)	48 years	41 of 100 (Notable)
1 May 2001	Spearfish, US	daily high max	30.6 C (87.1 F)	1.2 C (2.2 F)	100 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

1795 to 2001

Records set or tied on this calendar date in each year from 1795 to 2001. 2001 had 1,106 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 2001-05-01: 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 2026-10-15 (15 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 25	868
25 to 50	13
50 to 75	4
75 to 100	0
100 to 125	0
125 to 150	1
150 to 175	0
175 to 200	2