Weather Records on 10 May 1999

1,299 weather records were set or tied worldwide on 10 May 1999. Highest significance: Kennebec, US.

Key Facts for 10 May 1999

On 10 May 1999, 1,299 weather records were set or tied at long-record stations worldwide.
294 were record highs and 580 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 23 monthly and 1,276 daily.
Kennebec set a daily record precipitation of 86.4 mm (3.4 in) on 10 May 1999.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 435 records.

Record Map

1,299 stations

1,299 station records on 10 May 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 May 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kennebec	United States	Record daily precipitation	86.4 mm (3.4 in)	67 of 100 (Major)
Leola	United States	Record daily precipitation	50.3 mm (2.0 in)	67 of 100 (Major)
Flying Fish Point	Australia	Record daily precipitation	111.4 mm (4.4 in)	64 of 100 (Major)
Indus 3 W	United States	Record daily precipitation	41.9 mm (1.6 in)	59 of 100 (Notable)
Ennis	United States	Record daily snowfall	14.0 cm (5.5 in)	59 of 100 (Notable)
Virginia City	United States	Record snow depth	33.0 cm (13.0 in)	58 of 100 (Notable)
Corinda	Australia	Record daily precipitation	36.0 mm (1.4 in)	56 of 100 (Notable)
Waskish 4NE	United States	Record daily precipitation	44.5 mm (1.8 in)	56 of 100 (Notable)
Stephan 2 NW	United States	Record daily precipitation	64.5 mm (2.5 in)	56 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily precipitation	31.8 mm (1.3 in)	55 of 100 (Notable)
Red Lake Indian Agcy	United States	Record daily precipitation	34.3 mm (1.4 in)	54 of 100 (Notable)
Martinsdale 3 NNW	United States	Record low minimum temperature	-12.2 C (10.0 F)	53 of 100 (Notable)
Wolf Pt	United States	Record daily precipitation	25.4 mm (1.0 in)	53 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	55.4 mm (2.2 in)	51 of 100 (Notable)
Kremmling	United States	Record daily snowfall	7.6 cm (3.0 in)	51 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily snowfall	6.1 cm (2.4 in)	51 of 100 (Notable)
Palenque (Dge)	Mexico	Record high minimum temperature	31.7 C (89.1 F)	50 of 100 (Notable)
Stromsfoss Sluse	Norway	Record snow depth	10.0 cm (3.9 in)	50 of 100 (Notable)
Winsted	United States	Record daily precipitation	49.5 mm (1.9 in)	49 of 100 (Notable)
Ellendale	United States	Record daily precipitation	43.4 mm (1.7 in)	48 of 100 (Notable)
Blunt	United States	Record daily precipitation	51.3 mm (2.0 in)	48 of 100 (Notable)
Concordia ASOS	United States	Record daily precipitation	79.2 mm (3.1 in)	48 of 100 (Notable)
Waterdale	United States	Record daily snowfall	5.1 cm (2.0 in)	47 of 100 (Notable)
Kadoka	United States	Record low minimum temperature	-6.1 C (21.0 F)	47 of 100 (Notable)
Redig 11 NE	United States	Record daily precipitation	33.5 mm (1.3 in)	47 of 100 (Notable)
Kiamba	Australia	Record daily precipitation	80.4 mm (3.2 in)	46 of 100 (Notable)
Hillsboro 3 N	United States	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Kelliher	United States	Record daily precipitation	55.4 mm (2.2 in)	44 of 100 (Notable)
Woodworth 3NE	United States	Record daily precipitation	55.1 mm (2.2 in)	44 of 100 (Notable)
Richland	United States	Record low minimum temperature	-6.1 C (21.0 F)	44 of 100 (Notable)
Alpha Post Office	Australia	Record daily precipitation	39.0 mm (1.5 in)	43 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	37.2 mm (1.5 in)	43 of 100 (Notable)
Yampa	United States	Record snow depth	10.2 cm (4.0 in)	43 of 100 (Notable)
Glenwood 2WNW	United States	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Itasca UNIV of Minn	United States	Record daily precipitation	38.9 mm (1.5 in)	43 of 100 (Notable)
Prade Rch	United States	Record daily precipitation	63.5 mm (2.5 in)	43 of 100 (Notable)
Bremerton	United States	Record low minimum temperature	1.1 C (34.0 F)	43 of 100 (Notable)
Surbiton Station	Australia	Record daily precipitation	36.0 mm (1.4 in)	42 of 100 (Notable)
Vanersborg	Sweden	Record low maximum temperature	5.1 C (41.2 F)	42 of 100 (Notable)
Content 4 NNE	United States	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Highmore	United States	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Skara 1	Sweden	Record low maximum temperature	4.2 C (39.6 F)	41 of 100 (Notable)
Cass Lake	United States	Record daily precipitation	38.9 mm (1.5 in)	41 of 100 (Notable)
Ashley	United States	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Larimore 4SW	United States	Record daily precipitation	36.1 mm (1.4 in)	41 of 100 (Notable)
Medina	United States	Record daily precipitation	38.6 mm (1.5 in)	41 of 100 (Notable)
Hood Rvr Exp STN	United States	Record low minimum temperature	-1.7 C (28.9 F)	41 of 100 (Notable)
Wood	United States	Record daily precipitation	51.8 mm (2.0 in)	41 of 100 (Notable)
Tuan Creek Forest STN	Australia	Record daily precipitation	53.6 mm (2.1 in)	40 of 100 (Notable)
Orebro	Sweden	Record low maximum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Thorhult	United States	Record daily precipitation	34.5 mm (1.4 in)	40 of 100 (Notable)
Rosalia	United States	Record low minimum temperature	-4.4 C (24.1 F)	40 of 100 (Notable)
Imbil Post Office	Australia	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Napoleon	United States	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Riverside 7 SSW	United States	Record low minimum temperature	-10.0 C (14.0 F)	39 of 100 (Notable)
Davenport	United States	Record low minimum temperature	-5.6 C (21.9 F)	39 of 100 (Notable)
Blackall Township	Australia	Record daily precipitation	48.4 mm (1.9 in)	38 of 100 (Notable)
Little Yabba Sfr 274	Australia	Record daily precipitation	32.4 mm (1.3 in)	38 of 100 (Notable)
Shimojishima	Japan	Record daily precipitation	88.0 mm (3.5 in)	38 of 100 (Notable)
Sedro-Woolley	United States	Record low minimum temperature	-1.1 C (30.0 F)	38 of 100 (Notable)

Counts by Type and Timescale

1,299 records

Records set or tied on 10 May 1999 by type: Highest daily maximum 138, Lowest daily maximum 248, Highest daily minimum 156, Lowest daily minimum 332, Heaviest daily rainfall 357, Heaviest daily snowfall 43, Deepest snow cover 25.

Records on 10 May 1999 by type
Record type	Records
Highest daily maximum	138
Lowest daily maximum	248
Highest daily minimum	156
Lowest daily minimum	332
Heaviest daily rainfall	357
Heaviest daily snowfall	43
Deepest snow cover	25

Records on 10 May 1999 by timescale: all-time 0, monthly 23, daily 1,276.

How Much Records Were Beaten By

1,078 broken records

Margins by which the 1,078 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 407.0. Ties are not counted.

Top 20 by Significance

10 May 1999

Top 20 records on 10 May 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 May 1999	Kennebec, US	daily rain	86.4 mm (3.4 in)	64.8 mm (2.6 in)	56 years	67 of 100 (Major)
10 May 1999	Leola, US	daily rain	50.3 mm (2.0 in)	31.2 mm (1.2 in)	93 years	67 of 100 (Major)
10 May 1999	Flying Fish Point, AU	daily rain	111.4 mm (4.4 in)	60.6 mm (2.4 in)	76 years	64 of 100 (Major)
10 May 1999	Indus 3 W, US	daily rain	41.9 mm (1.6 in)	26.7 mm (1.1 in)	54 years	59 of 100 (Notable)
10 May 1999	Ennis, US	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	76 years	59 of 100 (Notable)
10 May 1999	Virginia City, US	daily snow depth	33.0 cm (13.0 in)	22.8 cm (9.0 in)	89 years	58 of 100 (Notable)
10 May 1999	Corinda, AU	daily rain	36.0 mm (1.4 in)	36.0 mm (1.4 in)	99 years	56 of 100 (Notable)
10 May 1999	Waskish 4NE, US	daily rain	44.5 mm (1.8 in)	33.3 mm (1.3 in)	33 years	56 of 100 (Notable)
10 May 1999	Stephan 2 NW, US	daily rain	64.5 mm (2.5 in)	56.1 mm (2.2 in)	24 years	56 of 100 (Notable)
10 May 1999	Williston Sloulin Fld, US	daily rain	31.8 mm (1.3 in)	15.0 mm (0.6 in)	80 years	55 of 100 (Notable)
10 May 1999	Red Lake Indian Agcy, US	daily rain	34.3 mm (1.4 in)	21.1 mm (0.8 in)	76 years	54 of 100 (Notable)
10 May 1999	Martinsdale 3 NNW, US	daily low min	-12.2 C (10.0 F)	5.0 C (9.0 F)	104 years	53 of 100 (Notable)
10 May 1999	Wolf Pt, US	daily rain	25.4 mm (1.0 in)	13.7 mm (0.5 in)	93 years	53 of 100 (Notable)
10 May 1999	Clarendon, AU	daily rain	55.4 mm (2.2 in)	49.8 mm (2.0 in)	42 years	51 of 100 (Notable)
10 May 1999	Kremmling, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	90 years	51 of 100 (Notable)
10 May 1999	Williston Sloulin Fld, US	daily snowfall	6.1 cm (2.4 in)	6.1 cm (2.4 in)	104 years	51 of 100 (Notable)
10 May 1999	Palenque (Dge), MX	daily high min	31.7 C (89.1 F)	6.7 C (12.1 F)	45 years	50 of 100 (Notable)
10 May 1999	Stromsfoss Sluse, NO	daily snow depth	10.0 cm (3.9 in)	10.0 cm (3.9 in)	102 years	50 of 100 (Notable)
10 May 1999	Winsted, US	daily rain	49.5 mm (1.9 in)	35.0 mm (1.4 in)	40 years	49 of 100 (Notable)
10 May 1999	Ellendale, US	daily rain	43.4 mm (1.7 in)	11.6 mm (0.5 in)	93 years	48 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

1805 to 1999

Records set or tied on this calendar date in each year from 1805 to 1999. 1999 had 1,299 records.

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

Records on 05-10 in each year
Year	Records
1805	1
1814	2
1832	1
1834	1
1836	4
1838	1
1843	1
1846	1
1848	1
1855	2
1858	1
1860	1
1861	2
1867	3
1868	1
1869	1
1872	1
1874	4
1876	1
1878	1
1879	2
1880	3
1881	3
1883	1
1884	2
1885	2
1886	1
1887	1
1888	2
1889	4
1890	2
1891	2
1893	1
1895	4
1896	6
1897	4
1898	5
1900	4
1901	6
1902	18
1903	6
1904	7
1905	21
1906	42
1907	33
1908	10
1909	17
1910	21
1911	55
1912	15
1913	23
1914	17
1915	18
1916	26
1917	23
1918	105
1919	145
1920	54
1921	143
1922	38
1923	291
1924	198
1925	163
1926	291
1927	296
1928	189
1929	102
1930	647
1931	277
1932	145
1933	516
1934	412
1935	200
1936	439
1937	148
1938	179
1939	179
1940	317
1941	257
1942	237
1943	482
1944	200
1945	646
1946	455
1947	820
1948	491
1949	492
1950	356
1951	281
1952	342
1953	627
1954	554
1955	272
1956	669
1957	374
1958	338
1959	192
1960	660
1961	722
1962	593
1963	951
1964	259
1965	413
1966	1,290
1967	932
1968	861
1969	325
1970	555
1971	416
1972	573
1973	429
1974	608
1975	448
1976	672
1977	1,075
1978	815
1979	1,927
1980	865
1981	1,213
1982	671
1983	753
1984	635
1985	925
1986	669
1987	1,270
1988	490
1989	1,365
1990	1,071
1991	854
1992	875
1993	1,056
1994	622
1995	1,129
1996	1,469
1997	1,215
1998	1,268
1999	1,299
2000	1,036
2001	842
2002	867
2003	1,688
2004	735
2005	761
2006	879
2007	815
2008	877
2009	651
2010	855
2011	1,288
2012	1,054
2013	635
2014	506
2015	943
2016	815
2017	702
2018	923
2019	1,254
2020	1,346
2021	635
2022	1,346
2023	359
2024	622
2025	1,094
2026	496

Download the Data

Data for records on 1999-05-10: 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	1,072
100 to 200	3
200 to 300	2
300 to 400	0
400 to 500	1