Weather Records on 23 May 1999

705 weather records were set or tied worldwide on 23 May 1999. Highest significance: Beaver Falls, US.

Key Facts for 23 May 1999

On 23 May 1999, 705 weather records were set or tied at long-record stations worldwide.
293 were record highs and 160 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 24 monthly and 680 daily.
Beaver Falls set a monthly record daily precipitation of 179.1 mm (7.1 in) on 23 May 1999.
Across 158 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

705 stations

705 station records on 23 May 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 May 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Beaver Falls	United States	Record daily precipitation	179.1 mm (7.1 in)	67 of 100 (Major)
Port Lincoln	Australia	Record daily precipitation	36.6 mm (1.4 in)	58 of 100 (Notable)
Port Lincoln (Westmere)	Australia	Record daily precipitation	44.0 mm (1.7 in)	56 of 100 (Notable)
Vacaville	United States	Record high minimum temperature	21.7 C (71.1 F)	53 of 100 (Notable)
Sugar Camp	United States	Record daily precipitation	63.5 mm (2.5 in)	53 of 100 (Notable)
Zhijiang	China	Record daily precipitation	132.7 mm (5.2 in)	52 of 100 (Notable)
Second Valley (Poolamacca)	Australia	Record daily precipitation	40.0 mm (1.6 in)	50 of 100 (Notable)
Meadows	Australia	Record daily precipitation	42.0 mm (1.7 in)	48 of 100 (Notable)
Lock (Terre)	Australia	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Huetamo	Mexico	Record low maximum temperature	32.8 C (91.0 F)	46 of 100 (Notable)
Deland 1 SSE	United States	Record low maximum temperature	23.3 C (73.9 F)	44 of 100 (Notable)
Parsons 3 SE	United States	Record daily precipitation	36.1 mm (1.4 in)	44 of 100 (Notable)
Port Lincoln (Woolga)	Australia	Record daily precipitation	30.4 mm (1.2 in)	42 of 100 (Notable)
Bodie California St Historic P	United States	Record high minimum temperature	4.4 C (39.9 F)	42 of 100 (Notable)
Cambridge	United States	Record low maximum temperature	11.7 C (53.1 F)	42 of 100 (Notable)
Osage	United States	Record low maximum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Cape May 2 NW	United States	Record daily precipitation	44.5 mm (1.8 in)	41 of 100 (Notable)
Vernal	United States	Record high minimum temperature	15.0 C (59.0 F)	41 of 100 (Notable)
Adelaide (Clapham)	Australia	Record daily precipitation	36.2 mm (1.4 in)	40 of 100 (Notable)
Warren 2 ENE	United States	Record daily precipitation	73.7 mm (2.9 in)	40 of 100 (Notable)
Donegal 2 NW	United States	Record daily precipitation	55.9 mm (2.2 in)	40 of 100 (Notable)
Ratnagiri	India	Record daily precipitation	39.9 mm (1.6 in)	39 of 100 (Notable)
Mahackala	Russia	Record low minimum temperature	4.6 C (40.3 F)	39 of 100 (Notable)
Khorog	Tajikistan	Record high minimum temperature	17.1 C (62.8 F)	39 of 100 (Notable)
East Park Rsvr	United States	Record high minimum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Minneapolis	United States	Record daily precipitation	51.8 mm (2.0 in)	39 of 100 (Notable)
Two Harbors	United States	Record low maximum temperature	6.7 C (44.1 F)	39 of 100 (Notable)
Beverly Stp	United States	Record daily precipitation	38.9 mm (1.5 in)	39 of 100 (Notable)
Bikaner	India	Record daily precipitation	63.0 mm (2.5 in)	37 of 100 (Notable)
Rorvikvatn Ved Vadheim	Norway	Record daily precipitation	37.2 mm (1.5 in)	37 of 100 (Notable)
Belington	United States	Record daily precipitation	42.7 mm (1.7 in)	36 of 100 (Notable)
Chuuk WSO AP	Federated States of Micronesia	Record daily precipitation	82.0 mm (3.2 in)	35 of 100 (Notable)
Jalapa del Marques	Mexico	Record low minimum temperature	15.6 C (60.1 F)	35 of 100 (Notable)
Tonala (Dge)	Mexico	Record high minimum temperature	27.8 C (82.0 F)	34 of 100 (Routine)
Tremonton	United States	Record high minimum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
Annette AP	United States	Record daily precipitation	64.5 mm (2.5 in)	34 of 100 (Routine)
Parafield Airport	Australia	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Alfoten II	Norway	Record daily precipitation	27.3 mm (1.1 in)	33 of 100 (Routine)
Ogden Pioneer Ph	United States	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Huetamo	Mexico	Record low minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Verhneimbatsk	Russia	Record high maximum temperature	29.5 C (85.1 F)	32 of 100 (Routine)
Napas	Russia	Record high minimum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Rangely 1E	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Cawker City	United States	Record daily precipitation	64.0 mm (2.5 in)	31 of 100 (Routine)
Ogden Sugar Factory	United States	Record high minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Lavras da Mangabeira (Dnocs)	Brazil	Record daily precipitation	77.4 mm (3.0 in)	30 of 100 (Routine)
Chama	United States	Record high minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Cove 1 E	United States	Record high maximum temperature	30.6 C (87.1 F)	30 of 100 (Routine)
Romney 1 SW	United States	Record daily precipitation	28.4 mm (1.1 in)	30 of 100 (Routine)
Adelaide (Waite Institute)	Australia	Record daily precipitation	36.0 mm (1.4 in)	29 of 100 (Routine)
Low Head (Comparison)	Australia	Record high minimum temperature	13.2 C (55.8 F)	29 of 100 (Routine)
Gallivare_A	Sweden	Record high minimum temperature	6.4 C (43.5 F)	29 of 100 (Routine)
Mc Connellsville Lk 7	United States	Record daily precipitation	39.6 mm (1.6 in)	29 of 100 (Routine)
Valentine 10 WSW	United States	Record daily precipitation	26.2 mm (1.0 in)	29 of 100 (Routine)
Goldsboro 4 SE	United States	Record daily precipitation	51.1 mm (2.0 in)	29 of 100 (Routine)
Cavern City AP	United States	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Ashton Co-Op	Australia	Record daily precipitation	44.4 mm (1.7 in)	28 of 100 (Routine)
Kislokan	Russia	Record high minimum temperature	15.9 C (60.6 F)	28 of 100 (Routine)
Scottsville 6SE	United States	Record daily precipitation	35.1 mm (1.4 in)	28 of 100 (Routine)
Valley Head	United States	Record daily precipitation	32.0 mm (1.3 in)	28 of 100 (Routine)

Counts by Type and Timescale

705 records

Records set or tied on 23 May 1999 by type: Highest daily maximum 147, Lowest daily maximum 49, Highest daily minimum 146, Lowest daily minimum 111, Heaviest daily rainfall 251, Deepest snow cover 1.

Records on 23 May 1999 by type
Record type	Records
Highest daily maximum	147
Lowest daily maximum	49
Highest daily minimum	146
Lowest daily minimum	111
Heaviest daily rainfall	251
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 23 May 1999 by timescale: all-time 1, monthly 24, daily 680.

How Much Records Were Beaten By

588 broken records

Margins by which the 588 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 787.0. Ties are not counted.

Top 20 by Significance

23 May 1999

Top 20 records on 23 May 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 May 1999	Beaver Falls, US	monthly rain	179.1 mm (7.1 in)	76.0 mm (3.0 in)	43 years	67 of 100 (Major)
23 May 1999	Port Lincoln, AU	daily rain	36.6 mm (1.4 in)	18.1 mm (0.7 in)	36 years	58 of 100 (Notable)
23 May 1999	Port Lincoln (Westmere), AU	daily rain	44.0 mm (1.7 in)	24.2 mm (1.0 in)	24 years	56 of 100 (Notable)
23 May 1999	Vacaville, US	daily high min	21.7 C (71.1 F)	5.6 C (10.1 F)	90 years	53 of 100 (Notable)
23 May 1999	Sugar Camp, US	daily rain	63.5 mm (2.5 in)	48.3 mm (1.9 in)	16 years	53 of 100 (Notable)
23 May 1999	Zhijiang, CN	daily rain	132.7 mm (5.2 in)	80.8 mm (3.2 in)	29 years	52 of 100 (Notable)
23 May 1999	Second Valley (Poolamacca), AU	daily rain	40.0 mm (1.6 in)	14.6 mm (0.6 in)	77 years	50 of 100 (Notable)
23 May 1999	Meadows, AU	daily rain	42.0 mm (1.7 in)	15.3 mm (0.6 in)	72 years	48 of 100 (Notable)
23 May 1999	Lock (Terre), AU	daily rain	31.0 mm (1.2 in)	19.5 mm (0.8 in)	10 years	47 of 100 (Notable)
23 May 1999	Huetamo, MX	daily low max	32.8 C (91.0 F)	4.4 C (7.9 F)	69 years	46 of 100 (Notable)
23 May 1999	Deland 1 SSE, US	daily low max	23.3 C (73.9 F)	1.1 C (2.0 F)	106 years	44 of 100 (Notable)
23 May 1999	Parsons 3 SE, US	daily rain	36.1 mm (1.4 in)	8.2 mm (0.32 in)	96 years	44 of 100 (Notable)
23 May 1999	Port Lincoln (Woolga), AU	daily rain	30.4 mm (1.2 in)	13.6 mm (0.5 in)	36 years	42 of 100 (Notable)
23 May 1999	Bodie California St Historic P, US	daily high min	4.4 C (39.9 F)	1.1 C (2.0 F)	101 years	42 of 100 (Notable)
23 May 1999	Cambridge, US	daily low max	11.7 C (53.1 F)	1.6 C (2.9 F)	105 years	42 of 100 (Notable)
23 May 1999	Osage, US	daily low max	13.3 C (55.9 F)	2.3 C (4.1 F)	92 years	41 of 100 (Notable)
23 May 1999	Cape May 2 NW, US	daily rain	44.5 mm (1.8 in)	20.4 mm (0.8 in)	42 years	41 of 100 (Notable)
23 May 1999	Vernal, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	102 years	41 of 100 (Notable)
23 May 1999	Adelaide (Clapham), AU	daily rain	36.2 mm (1.4 in)	21.4 mm (0.8 in)	10 years	40 of 100 (Notable)
23 May 1999	Warren 2 ENE, US	daily rain	73.7 mm (2.9 in)	1.6 mm (0.06 in)	100 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

1793 to 1999

Records set or tied on this calendar date in each year from 1793 to 1999. 1999 had 705 records.

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

Records on 05-23 in each year
Year	Records
1793	1
1794	1
1798	1
1817	1
1818	1
1837	3
1845	1
1847	2
1857	1
1863	1
1865	2
1866	5
1867	7
1870	2
1871	1
1875	1
1877	1
1878	1
1880	1
1884	2
1885	2
1886	4
1887	1
1889	2
1891	11
1893	3
1894	1
1895	3
1896	4
1897	3
1898	8
1899	3
1900	12
1901	3
1902	12
1903	6
1904	14
1905	10
1906	23
1907	11
1908	13
1909	23
1910	26
1911	39
1912	31
1913	29
1914	33
1915	13
1916	44
1917	58
1918	36
1919	120
1920	37
1921	92
1922	82
1923	99
1924	230
1925	325
1926	204
1927	243
1928	177
1929	221
1930	199
1931	719
1932	358
1933	443
1934	203
1935	369
1936	568
1937	156
1938	390
1939	415
1940	324
1941	676
1942	235
1943	342
1944	784
1945	241
1946	311
1947	285
1948	273
1949	612
1950	490
1951	400
1952	597
1953	777
1954	496
1955	650
1956	498
1957	653
1958	744
1959	486
1960	395
1961	412
1962	677
1963	1,153
1964	964
1965	477
1966	391
1967	1,055
1968	578
1969	437
1970	314
1971	659
1972	449
1973	371
1974	678
1975	855
1976	556
1977	596
1978	703
1979	730
1980	1,202
1981	862
1982	717
1983	1,123
1984	1,027
1985	608
1986	626
1987	745
1988	662
1989	1,106
1990	1,660
1991	1,244
1992	1,423
1993	845
1994	690
1995	1,106
1996	1,114
1997	983
1998	947
1999	705
2000	1,372
2001	1,441
2002	1,537
2003	954
2004	1,275
2005	908
2006	1,122
2007	1,170
2008	1,472
2009	805
2010	1,275
2011	1,001
2012	1,006
2013	929
2014	858
2015	667
2016	679
2017	602
2018	552
2019	1,044
2020	631
2021	837
2022	807
2023	316
2024	760
2025	865
2026	804

Download the Data

Data for records on 1999-05-23: 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 100	587
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1