Weather Records on 9 May 2010

764 weather records were set or tied worldwide on 9 May 2010. Highest significance: Mersa Matruh, EG.

Key Facts for 9 May 2010

On 9 May 2010, 764 weather records were set or tied at long-record stations worldwide.
335 were record highs and 328 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 27 monthly and 729 daily.
Mersa Matruh set a monthly record daily precipitation of 52.1 mm (2.1 in) on 9 May 2010.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

764 stations

764 station records on 9 May 2010 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 2010: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mersa Matruh	Egypt	Record daily precipitation	52.1 mm (2.1 in)	85 of 100 (Exceptional)
Huingo	Mexico	Record daily precipitation	104.9 mm (4.1 in)	67 of 100 (Major)
Ellenburg Depot	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
Aginskoe	Russia	Record daily precipitation	46.1 mm (1.8 in)	54 of 100 (Notable)
Upper Sandusky	United States	Record low minimum temperature	-4.4 C (24.1 F)	50 of 100 (Notable)
Zaragoza	Spain	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
Corinth 5 WSW	United States	Record low maximum temperature	16.1 C (61.0 F)	44 of 100 (Notable)
Lake Placid 2 S	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Harrison	United States	Record daily precipitation	45.5 mm (1.8 in)	42 of 100 (Notable)
Rison	United States	Record low maximum temperature	15.0 C (59.0 F)	42 of 100 (Notable)
Rock Is L&D 15	United States	Record low maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Tak	Thailand	Record high minimum temperature	30.8 C (87.4 F)	41 of 100 (Notable)
Deland 1 SSE	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Mt Mansfield	United States	Record daily snowfall	26.7 cm (10.5 in)	41 of 100 (Notable)
Hayward Rs	United States	Record low minimum temperature	-6.7 C (19.9 F)	41 of 100 (Notable)
La Florida	Mexico	Record high maximum temperature	40.0 C (104.0 F)	40 of 100 (Notable)
Logansport Cicott St	United States	Record low maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Coldwater St School	United States	Record low maximum temperature	3.9 C (39.0 F)	39 of 100 (Notable)
Merriman	United States	Record low minimum temperature	-4.4 C (24.1 F)	38 of 100 (Notable)
Texarkana Webb Fld	United States	Record low maximum temperature	16.7 C (62.1 F)	38 of 100 (Notable)
Bristow	United States	Record low maximum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Saltville 1N	United States	Record low minimum temperature	0.6 C (33.1 F)	37 of 100 (Notable)
Big River Lakes	United States	Record low minimum temperature	-10.0 C (14.0 F)	37 of 100 (Notable)
Mazamitla	Mexico	Record daily precipitation	43.9 mm (1.7 in)	36 of 100 (Notable)
Tuxcueca	Mexico	Record daily precipitation	35.8 mm (1.4 in)	36 of 100 (Notable)
Gmo Im.E.K.Fedorova	Russia	Record high maximum temperature	2.9 C (37.2 F)	36 of 100 (Notable)
Wanakena Rngr School	United States	Record daily snowfall	13.2 cm (5.2 in)	36 of 100 (Notable)
Yoder 5 W	United States	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Sao Paulo (Aeroport	Brazil	Record daily precipitation	53.1 mm (2.1 in)	34 of 100 (Routine)
Las Animas	Mexico	Record low minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Velikie Luki	Russia	Record high minimum temperature	13.1 C (55.6 F)	34 of 100 (Routine)
Mae Sot	Thailand	Record high minimum temperature	27.7 C (81.9 F)	34 of 100 (Routine)
San Miguel Totolapan	Mexico	Record high minimum temperature	30.6 C (87.1 F)	33 of 100 (Routine)
Vandalia	United States	Record low maximum temperature	12.8 C (55.0 F)	33 of 100 (Routine)
Hambantota	Sri Lanka	Record low maximum temperature	27.9 C (82.2 F)	32 of 100 (Routine)
Kargopol	Russia	Record high maximum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Markovo	Russia	Record high minimum temperature	2.2 C (36.0 F)	32 of 100 (Routine)
Vologda	Russia	Record high maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Ajan	Russia	Record daily precipitation	40.9 mm (1.6 in)	32 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record low maximum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Surin	Thailand	Record high minimum temperature	28.2 C (82.8 F)	31 of 100 (Routine)
Moorestown 4 E	United States	Record low minimum temperature	0.0 C (32.0 F)	31 of 100 (Routine)
Kazalinsk	Kazakhstan	Record high minimum temperature	17.6 C (63.7 F)	30 of 100 (Routine)
Santa Gertrudis	Mexico	Record high maximum temperature	36.7 C (98.1 F)	30 of 100 (Routine)
Bangkok Metropolis	Thailand	Record high minimum temperature	30.2 C (86.4 F)	30 of 100 (Routine)
Osceola	United States	Record low minimum temperature	-1.1 C (30.0 F)	30 of 100 (Routine)
Sidney 1SSE	United States	Record low maximum temperature	13.3 C (55.9 F)	30 of 100 (Routine)
York Pond	United States	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Wanakena Rngr School	United States	Record snow depth	12.7 cm (5.0 in)	30 of 100 (Routine)
San Miguel Chimalapa	Mexico	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Mozajsk	Russia	Record high minimum temperature	12.6 C (54.7 F)	29 of 100 (Routine)
Nakhon Ratchasima	Thailand	Record high minimum temperature	28.7 C (83.7 F)	29 of 100 (Routine)
Wick	United Kingdom	Record low maximum temperature	7.6 C (45.7 F)	29 of 100 (Routine)
Brookville	United States	Record low maximum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Holton	United States	Record low maximum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Shonkin 7 S	United States	Record snow depth	45.7 cm (18.0 in)	29 of 100 (Routine)
San Jose del Cabo	Mexico	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Tepelmeme de Morelos	Mexico	Record low maximum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
La Florida	Mexico	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Greenville 2 NNE	United States	Record low minimum temperature	-5.0 C (23.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

764 records

Records set or tied on 9 May 2010 by type: Highest daily maximum 172, Lowest daily maximum 206, Highest daily minimum 163, Lowest daily minimum 122, Heaviest daily rainfall 75, Heaviest daily snowfall 16, Deepest snow cover 10.

Records on 9 May 2010 by type
Record type	Records
Highest daily maximum	172
Lowest daily maximum	206
Highest daily minimum	163
Lowest daily minimum	122
Heaviest daily rainfall	75
Heaviest daily snowfall	16
Deepest snow cover	10

Records on 9 May 2010 by timescale: all-time 8, monthly 27, daily 729.

How Much Records Were Beaten By

539 broken records

Margins by which the 539 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

9 May 2010

Top 20 records on 9 May 2010 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 2010	Mersa Matruh, EG	monthly rain	52.1 mm (2.1 in)	31.1 mm (1.2 in)	87 years	85 of 100 (Exceptional)
9 May 2010	Huingo, MX	all-time rain	104.9 mm (4.1 in)	34.5 mm (1.4 in)	1 year	67 of 100 (Major)
9 May 2010	Ellenburg Depot, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	110 years	55 of 100 (Notable)
9 May 2010	Aginskoe, RU	daily rain	46.1 mm (1.8 in)	30.7 mm (1.2 in)	25 years	54 of 100 (Notable)
9 May 2010	Upper Sandusky, US	monthly low min	-4.4 C (24.1 F)	0.5 C (0.9 F)	107 years	50 of 100 (Notable)
9 May 2010	Zaragoza, ES	monthly rain	52.1 mm (2.1 in)	11.7 mm (0.5 in)	50 years	47 of 100 (Notable)
9 May 2010	Corinth 5 WSW, US	daily low max	16.1 C (61.0 F)	1.7 C (3.1 F)	101 years	44 of 100 (Notable)
9 May 2010	Lake Placid 2 S, US	daily snowfall	5.1 cm (2.0 in)	2.3 cm (0.9 in)	92 years	44 of 100 (Notable)
9 May 2010	Harrison, US	daily rain	45.5 mm (1.8 in)	4.1 mm (0.16 in)	100 years	42 of 100 (Notable)
9 May 2010	Rison, US	daily low max	15.0 C (59.0 F)	2.2 C (4.0 F)	91 years	42 of 100 (Notable)
9 May 2010	Rock Is L&D 15, US	daily low max	13.3 C (55.9 F)	1.1 C (2.0 F)	136 years	42 of 100 (Notable)
9 May 2010	Tak, TH	all-time high min	30.8 C (87.4 F)	0.2 C (0.4 F)	52 years	41 of 100 (Notable)
9 May 2010	Deland 1 SSE, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	108 years	41 of 100 (Notable)
9 May 2010	Mt Mansfield, US	daily snowfall	26.7 cm (10.5 in)	14.0 cm (5.5 in)	44 years	41 of 100 (Notable)
9 May 2010	Hayward Rs, US	daily low min	-6.7 C (19.9 F)	1.1 C (2.0 F)	104 years	41 of 100 (Notable)
9 May 2010	La Florida, MX	daily high max	40.0 C (104.0 F)	5.0 C (9.0 F)	53 years	40 of 100 (Notable)
9 May 2010	Logansport Cicott St, US	daily low max	10.6 C (51.1 F)	0.5 C (0.9 F)	101 years	40 of 100 (Notable)
9 May 2010	Coldwater St School, US	daily low max	3.9 C (39.0 F)	1.7 C (3.1 F)	87 years	39 of 100 (Notable)
9 May 2010	Merriman, US	daily low min	-4.4 C (24.1 F)	1.1 C (2.0 F)	87 years	38 of 100 (Notable)
9 May 2010	Texarkana Webb Fld, US	daily low max	16.7 C (62.1 F)	0.5 C (0.9 F)	91 years	38 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 2010

Records set or tied on this calendar date in each year from 1793 to 2010. 2010 had 764 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 2010-05-09: 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 50	532
50 to 100	5
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	1