Weather Records on 18 March 2009

776 weather records were set or tied worldwide on 18 March 2009. Highest significance: Ocozocoautla, MX.

Key Facts for 18 March 2009

On 18 March 2009, 776 weather records were set or tied at long-record stations worldwide.
585 were record highs and 93 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 39 monthly and 737 daily.
Ocozocoautla set a daily record precipitation of 29.5 mm (1.2 in) on 18 March 2009.
Across 160 earlier years (1806 to 2026) the same calendar date averaged 475 records.

Record Map

776 stations

776 station records on 18 March 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 March 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ocozocoautla	Mexico	Record daily precipitation	29.5 mm (1.2 in)	53 of 100 (Notable)
Wrangell AP	United States	Record daily snowfall	16.3 cm (6.4 in)	51 of 100 (Notable)
Ai-Petri	Ukraine	Record daily precipitation	29.0 mm (1.1 in)	48 of 100 (Notable)
Appleton	United States	Record high maximum temperature	21.1 C (70.0 F)	48 of 100 (Notable)
Port Washington	United States	Record high maximum temperature	24.4 C (75.9 F)	48 of 100 (Notable)
Petersburg 1	United States	Record daily snowfall	22.9 cm (9.0 in)	47 of 100 (Notable)
Miami Beach	United States	Record daily precipitation	58.4 mm (2.3 in)	46 of 100 (Notable)
Princeton	United States	Record high maximum temperature	27.2 C (81.0 F)	45 of 100 (Notable)
Soledad de Doblado	Mexico	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Mae Sot	Thailand	Record low maximum temperature	29.2 C (84.6 F)	43 of 100 (Notable)
Alpine	United States	Record high minimum temperature	5.0 C (41.0 F)	43 of 100 (Notable)
Hemlock	United States	Record high minimum temperature	7.2 C (45.0 F)	42 of 100 (Notable)
Manitowoc	United States	Record high maximum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Gladwin	United States	Record high maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Adrian 2 NNE	United States	Record high minimum temperature	7.8 C (46.0 F)	41 of 100 (Notable)
Jefferson 3SE	United States	Record high maximum temperature	30.0 C (86.0 F)	41 of 100 (Notable)
Marble Hill	United States	Record high minimum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Waukesha Wwtp	United States	Record high maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Ft Morgan	United States	Record high maximum temperature	24.4 C (75.9 F)	39 of 100 (Notable)
Marysville	United States	Record high maximum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Racine Wwtp	United States	Record high maximum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Pawnee City	United States	Record high maximum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Mansfield 5 W	United States	Record high maximum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Centerville	United States	Record high maximum temperature	26.1 C (79.0 F)	36 of 100 (Notable)
Okemah	United States	Record high maximum temperature	28.9 C (84.0 F)	36 of 100 (Notable)
Izuhara	Japan	Record high minimum temperature	15.5 C (59.9 F)	35 of 100 (Notable)
Marinette	United States	Record high maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Two Rivers	United States	Record high maximum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Daly Waters AWS	Australia	Record low minimum temperature	14.3 C (57.7 F)	34 of 100 (Routine)
Mutsu	Japan	Record high maximum temperature	15.5 C (59.9 F)	34 of 100 (Routine)
Ulleungdo	Korea, South	Record high minimum temperature	11.5 C (52.7 F)	34 of 100 (Routine)
Quito	Mexico	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Oxolotan	Mexico	Record daily precipitation	93.0 mm (3.7 in)	34 of 100 (Routine)
Mokpo	Korea, South	Record high minimum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
San Luis Obispo Poly	United States	Record high minimum temperature	13.3 C (55.9 F)	33 of 100 (Routine)
Quinter	United States	Record high maximum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Wamego 4 W	United States	Record high maximum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Trenton	United States	Record high maximum temperature	27.2 C (81.0 F)	33 of 100 (Routine)
Pustunich	Mexico	Record high minimum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Mae Sariang	Thailand	Record low maximum temperature	31.7 C (89.1 F)	32 of 100 (Routine)
Follett	United States	Record high maximum temperature	31.1 C (88.0 F)	32 of 100 (Routine)
Burlington Intl AP	United States	Record high minimum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Yuanping	China	Record high maximum temperature	28.6 C (83.5 F)	31 of 100 (Routine)
Dixon Wwtp	United States	Record high maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Bell Ranch	United States	Record high minimum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Albion	United States	Record high minimum temperature	7.2 C (45.0 F)	31 of 100 (Routine)
Nome AP	United States	Record snow depth	190.5 cm (75.0 in)	31 of 100 (Routine)
Syracuse Hancock Intl AP	United States	Record high minimum temperature	5.6 C (42.1 F)	30 of 100 (Routine)
Toyama	Japan	Record high minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Acatlan de Osorio (Smn)	Mexico	Record high minimum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Presa Alvaro Obregon	Mexico	Record high minimum temperature	16.7 C (62.1 F)	29 of 100 (Routine)
Ojmjakon	Russia	Record high minimum temperature	-17.5 C (0.5 F)	29 of 100 (Routine)
Zyrjanka	Russia	Record high minimum temperature	-9.3 C (15.3 F)	29 of 100 (Routine)
Keokuk L&D 19	United States	Record high maximum temperature	25.6 C (78.1 F)	29 of 100 (Routine)
Le Claire L&D 14	United States	Record high maximum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Memphis	United States	Record high maximum temperature	25.6 C (78.1 F)	29 of 100 (Routine)
Batavia	United States	Record high minimum temperature	7.2 C (45.0 F)	29 of 100 (Routine)
Sodus 1W	United States	Record high minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Steele 4N	United States	Record snow depth	30.5 cm (12.0 in)	29 of 100 (Routine)
Genoa Dam 8	United States	Record high maximum temperature	19.4 C (66.9 F)	29 of 100 (Routine)

Counts by Type and Timescale

776 records

Records set or tied on 18 March 2009 by type: Highest daily maximum 363, Lowest daily maximum 40, Highest daily minimum 222, Lowest daily minimum 53, Heaviest daily rainfall 81, Heaviest daily snowfall 5, Deepest snow cover 12.

Records on 18 March 2009 by type
Record type	Records
Highest daily maximum	363
Lowest daily maximum	40
Highest daily minimum	222
Lowest daily minimum	53
Heaviest daily rainfall	81
Heaviest daily snowfall	5
Deepest snow cover	12

Records on 18 March 2009 by timescale: all-time 0, monthly 39, daily 737.

How Much Records Were Beaten By

592 broken records

Margins by which the 592 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 355.0. Ties are not counted.

Top 20 by Significance

18 March 2009

Top 20 records on 18 March 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 March 2009	Ocozocoautla, MX	daily rain	29.5 mm (1.2 in)	27.0 mm (1.1 in)	20 years	53 of 100 (Notable)
18 March 2009	Wrangell AP, US	daily snowfall	16.3 cm (6.4 in)	10.5 cm (4.1 in)	79 years	51 of 100 (Notable)
18 March 2009	Ai-Petri, UA	daily rain	29.0 mm (1.1 in)	7.8 mm (0.31 in)	98 years	48 of 100 (Notable)
18 March 2009	Appleton, US	daily high max	21.1 C (70.0 F)	5.5 C (9.9 F)	99 years	48 of 100 (Notable)
18 March 2009	Port Washington, US	daily high max	24.4 C (75.9 F)	6.1 C (11.0 F)	96 years	48 of 100 (Notable)
18 March 2009	Petersburg 1, US	daily snowfall	22.9 cm (9.0 in)	14.5 cm (5.7 in)	63 years	47 of 100 (Notable)
18 March 2009	Miami Beach, US	daily rain	58.4 mm (2.3 in)	17.8 mm (0.7 in)	80 years	46 of 100 (Notable)
18 March 2009	Princeton, US	daily high max	27.2 C (81.0 F)	3.9 C (7.0 F)	106 years	45 of 100 (Notable)
18 March 2009	Soledad de Doblado, MX	daily rain	27.9 mm (1.1 in)	24.6 mm (1.0 in)	20 years	44 of 100 (Notable)
18 March 2009	Mae Sot, TH	daily low max	29.2 C (84.6 F)	4.3 C (7.7 F)	40 years	43 of 100 (Notable)
18 March 2009	Alpine, US	daily high min	5.0 C (41.0 F)	5.0 C (9.0 F)	78 years	43 of 100 (Notable)
18 March 2009	Hemlock, US	daily high min	7.2 C (45.0 F)	1.6 C (2.9 F)	106 years	42 of 100 (Notable)
18 March 2009	Manitowoc, US	daily high max	20.0 C (68.0 F)	4.4 C (7.9 F)	80 years	42 of 100 (Notable)
18 March 2009	Gladwin, US	daily high max	21.7 C (71.1 F)	1.7 C (3.1 F)	106 years	42 of 100 (Notable)
18 March 2009	Adrian 2 NNE, US	daily high min	7.8 C (46.0 F)	0.6 C (1.1 F)	114 years	41 of 100 (Notable)
18 March 2009	Jefferson 3SE, US	daily high max	30.0 C (86.0 F)	1.1 C (2.0 F)	102 years	41 of 100 (Notable)
18 March 2009	Marble Hill, US	daily high min	13.9 C (57.0 F)	0.6 C (1.1 F)	104 years	40 of 100 (Notable)
18 March 2009	Waukesha Wwtp, US	daily high max	22.8 C (73.0 F)	0.6 C (1.1 F)	114 years	40 of 100 (Notable)
18 March 2009	Ft Morgan, US	daily high max	24.4 C (75.9 F)	0.5 C (0.9 F)	99 years	39 of 100 (Notable)
18 March 2009	Marysville, US	daily high max	23.3 C (73.9 F)	1.6 C (2.9 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

1806 to 2009

Records set or tied on this calendar date in each year from 1806 to 2009. 2009 had 776 records.

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

Records on 03-18 in each year
Year	Records
1806	1
1807	1
1808	1
1810	1
1814	1
1831	1
1836	1
1839	1
1845	1
1849	1
1850	5
1853	2
1859	1
1863	1
1865	2
1867	1
1868	3
1876	1
1881	1
1882	3
1884	3
1885	1
1887	1
1888	4
1890	3
1891	3
1892	2
1893	1
1894	1
1895	2
1896	10
1897	14
1898	5
1899	8
1900	14
1901	2
1902	9
1903	22
1904	9
1905	19
1906	13
1907	11
1908	8
1909	9
1910	12
1911	17
1912	16
1913	24
1914	32
1915	30
1916	73
1917	45
1918	32
1919	25
1920	39
1921	66
1922	39
1923	262
1924	96
1925	145
1926	251
1927	376
1928	301
1929	106
1930	261
1931	167
1932	212
1933	244
1934	375
1935	87
1936	699
1937	296
1938	304
1939	750
1940	444
1941	954
1942	382
1943	603
1944	321
1945	751
1946	492
1947	328
1948	296
1949	292
1950	1,042
1951	582
1952	474
1953	218
1954	355
1955	469
1956	363
1957	374
1958	347
1959	392
1960	585
1961	579
1962	284
1963	665
1964	348
1965	1,584
1966	540
1967	1,396
1968	915
1969	601
1970	533
1971	405
1972	1,028
1973	716
1974	694
1975	614
1976	538
1977	684
1978	1,003
1979	894
1980	588
1981	570
1982	1,284
1983	1,225
1984	446
1985	731
1986	626
1987	933
1988	1,001
1989	1,147
1990	1,478
1991	706
1992	789
1993	1,683
1994	960
1995	833
1996	518
1997	1,024
1998	1,144
1999	1,051
2000	524
2001	841
2002	1,562
2003	1,425
2004	1,232
2005	1,178
2006	551
2007	1,330
2008	1,066
2009	776
2010	678
2011	993
2012	3,348
2013	783
2014	701
2015	943
2016	675
2017	1,183
2018	921
2019	666
2020	672
2021	562
2022	476
2023	890
2024	843
2025	728
2026	2,870

Download the Data

Data for records on 2009-03-18: 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	579
50 to 100	4
100 to 150	7
150 to 200	1
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1