Weather Records on 9 May 1979

1,605 weather records were set or tied worldwide on 9 May 1979. Highest significance: Eagle FAA AP, US.

Key Facts for 9 May 1979

On 9 May 1979, 1,605 weather records were set or tied at long-record stations worldwide.
650 were record highs and 530 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 69 monthly and 1,534 daily.
Eagle FAA AP set a daily record snowfall of 17.8 cm (7.0 in) on 9 May 1979.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 425 records.

Record Map

1,605 stations

1,605 station records on 9 May 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Eagle FAA AP	United States	Record daily snowfall	17.8 cm (7.0 in)	64 of 100 (Major)
Crescent City	United States	Record daily precipitation	77.5 mm (3.1 in)	63 of 100 (Major)
Kimball 2NE	United States	Record daily snowfall	12.7 cm (5.0 in)	59 of 100 (Notable)
Riverton	United States	Record snow depth	30.5 cm (12.0 in)	54 of 100 (Notable)
Ellsworth 2W	United States	Record daily snowfall	20.3 cm (8.0 in)	53 of 100 (Notable)
Ibirama (Pcd)	Brazil	Record daily precipitation	105.2 mm (4.1 in)	52 of 100 (Notable)
Joacaba	Brazil	Record daily precipitation	85.0 mm (3.3 in)	52 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	10.2 cm (4.0 in)	52 of 100 (Notable)
Ilhota-Jusante	Brazil	Record daily precipitation	67.8 mm (2.7 in)	51 of 100 (Notable)
Pomerode	Brazil	Record daily precipitation	84.4 mm (3.3 in)	51 of 100 (Notable)
Timbo Novo (Pcd)	Brazil	Record daily precipitation	100.3 mm (3.9 in)	51 of 100 (Notable)
Taio (Pcd)	Brazil	Record daily precipitation	109.4 mm (4.3 in)	51 of 100 (Notable)
Simferopol	Ukraine	Record daily precipitation	26.2 mm (1.0 in)	51 of 100 (Notable)
Buffalo	United States	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
Indaial	Brazil	Record daily precipitation	98.1 mm (3.9 in)	50 of 100 (Notable)
Blumenau (Pcd)	Brazil	Record daily precipitation	73.2 mm (2.9 in)	49 of 100 (Notable)
Garcia	Brazil	Record daily precipitation	86.4 mm (3.4 in)	49 of 100 (Notable)
Itoupava Central	Brazil	Record daily precipitation	79.2 mm (3.1 in)	49 of 100 (Notable)
Apiuna -Regua Nova (Pcd)	Brazil	Record daily precipitation	96.2 mm (3.8 in)	49 of 100 (Notable)
Pouso Redondo	Brazil	Record daily precipitation	91.2 mm (3.6 in)	49 of 100 (Notable)
McNary 2N	United States	Record daily precipitation	27.4 mm (1.1 in)	49 of 100 (Notable)
Wells	United States	Record daily snowfall	8.1 cm (3.2 in)	49 of 100 (Notable)
Garcia	Brazil	Record daily precipitation	66.4 mm (2.6 in)	48 of 100 (Notable)
Savannah Intl AP	United States	Record daily precipitation	87.6 mm (3.4 in)	48 of 100 (Notable)
Ft Morgan	United States	Record daily snowfall	7.6 cm (3.0 in)	47 of 100 (Notable)
Dwtn Charleston	United States	Record daily precipitation	41.7 mm (1.6 in)	47 of 100 (Notable)
Gage AP	United States	Record daily precipitation	99.1 mm (3.9 in)	47 of 100 (Notable)
Divisa de Anitapolis	Brazil	Record daily precipitation	67.6 mm (2.7 in)	46 of 100 (Notable)
Trombudo Central	Brazil	Record daily precipitation	86.2 mm (3.4 in)	46 of 100 (Notable)
Luiz Alves	Brazil	Record daily precipitation	81.3 mm (3.2 in)	45 of 100 (Notable)
Ituporanga (Pcd)	Brazil	Record daily precipitation	88.4 mm (3.5 in)	45 of 100 (Notable)
Lomba Alta	Brazil	Record daily precipitation	68.8 mm (2.7 in)	45 of 100 (Notable)
Duncan	United States	Record low maximum temperature	16.1 C (61.0 F)	45 of 100 (Notable)
Sierra Ancha	United States	Record low maximum temperature	7.2 C (45.0 F)	45 of 100 (Notable)
Leroy 5 WSW	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Arco	United States	Record daily snowfall	16.5 cm (6.5 in)	45 of 100 (Notable)
Monticello 2E	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Rushville	United States	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Nova Trento	Brazil	Record daily precipitation	74.2 mm (2.9 in)	43 of 100 (Notable)
Meleiro	Brazil	Record daily precipitation	54.2 mm (2.1 in)	43 of 100 (Notable)
Chernjaevo	Russia	Record daily precipitation	30.2 mm (1.2 in)	43 of 100 (Notable)
Durango	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Murdo	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Watson Lake A	Canada	Record daily snowfall	12.0 cm (4.7 in)	42 of 100 (Notable)
Pinetop 2E	United States	Record daily snowfall	14.7 cm (5.8 in)	42 of 100 (Notable)
Dolores	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Grouse	United States	Record daily snowfall	12.7 cm (5.0 in)	42 of 100 (Notable)
Hopewell 1 SE	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Duluth	United States	Record daily precipitation	76.2 mm (3.0 in)	42 of 100 (Notable)
Montreal McGill	Canada	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
McNary 2N	United States	Record daily snowfall	17.8 cm (7.0 in)	41 of 100 (Notable)
Hendersonville 1 NE	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Tropic	United States	Record low maximum temperature	4.4 C (39.9 F)	41 of 100 (Notable)
Lucknow	Canada	Record high minimum temperature	19.5 C (67.1 F)	40 of 100 (Notable)
Ciudad Hidalgo (Smn)	Mexico	Record low minimum temperature	2.8 C (37.0 F)	40 of 100 (Notable)
Buena Vista 2S	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Oshkosh	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Chaco Canyon Natl Mon	United States	Record low maximum temperature	8.3 C (46.9 F)	40 of 100 (Notable)
Faith	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Forquilhinha	Brazil	Record daily precipitation	55.0 mm (2.2 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,605 records

Records set or tied on 9 May 1979 by type: Highest daily maximum 325, Lowest daily maximum 375, Highest daily minimum 325, Lowest daily minimum 155, Heaviest daily rainfall 280, Heaviest daily snowfall 104, Deepest snow cover 41.

Records on 9 May 1979 by type
Record type	Records
Highest daily maximum	325
Lowest daily maximum	375
Highest daily minimum	325
Lowest daily minimum	155
Heaviest daily rainfall	280
Heaviest daily snowfall	104
Deepest snow cover	41

Records on 9 May 1979 by timescale: all-time 2, monthly 69, daily 1,534.

How Much Records Were Beaten By

1,255 broken records

Margins by which the 1,255 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

9 May 1979

Top 20 records on 9 May 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1979	Eagle FAA AP, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	73 years	64 of 100 (Major)
9 May 1979	Crescent City, US	daily rain	77.5 mm (3.1 in)	59.7 mm (2.4 in)	64 years	63 of 100 (Major)
9 May 1979	Kimball 2NE, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	85 years	59 of 100 (Notable)
9 May 1979	Riverton, US	monthly snow depth	30.5 cm (12.0 in)	17.8 cm (7.0 in)	67 years	54 of 100 (Notable)
9 May 1979	Ellsworth 2W, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	34 years	53 of 100 (Notable)
9 May 1979	Ibirama (Pcd), BR	monthly rain	105.2 mm (4.1 in)	38.9 mm (1.5 in)	30 years	52 of 100 (Notable)
9 May 1979	Joacaba, BR	daily rain	85.0 mm (3.3 in)	77.9 mm (3.1 in)	34 years	52 of 100 (Notable)
9 May 1979	Bridgeport, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	81 years	52 of 100 (Notable)
9 May 1979	Ilhota-Jusante, BR	daily rain	67.8 mm (2.7 in)	60.4 mm (2.4 in)	21 years	51 of 100 (Notable)
9 May 1979	Pomerode, BR	daily rain	84.4 mm (3.3 in)	69.2 mm (2.7 in)	21 years	51 of 100 (Notable)
9 May 1979	Timbo Novo (Pcd), BR	daily rain	100.3 mm (3.9 in)	89.5 mm (3.5 in)	22 years	51 of 100 (Notable)
9 May 1979	Taio (Pcd), BR	daily rain	109.4 mm (4.3 in)	101.3 mm (4.0 in)	21 years	51 of 100 (Notable)
9 May 1979	Simferopol, UA	daily rain	26.2 mm (1.0 in)	13.7 mm (0.5 in)	77 years	51 of 100 (Notable)
9 May 1979	Buffalo, US	daily snowfall	22.9 cm (9.0 in)	14.0 cm (5.5 in)	52 years	51 of 100 (Notable)
9 May 1979	Indaial, BR	daily rain	98.1 mm (3.9 in)	83.3 mm (3.3 in)	22 years	50 of 100 (Notable)
9 May 1979	Blumenau (Pcd), BR	daily rain	73.2 mm (2.9 in)	69.5 mm (2.7 in)	22 years	49 of 100 (Notable)
9 May 1979	Garcia, BR	daily rain	86.4 mm (3.4 in)	80.7 mm (3.2 in)	22 years	49 of 100 (Notable)
9 May 1979	Itoupava Central, BR	daily rain	79.2 mm (3.1 in)	68.8 mm (2.7 in)	21 years	49 of 100 (Notable)
9 May 1979	Apiuna -Regua Nova (Pcd), BR	daily rain	96.2 mm (3.8 in)	85.0 mm (3.3 in)	22 years	49 of 100 (Notable)
9 May 1979	Pouso Redondo, BR	daily rain	91.2 mm (3.6 in)	84.2 mm (3.3 in)	22 years	49 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 1979

Records set or tied on this calendar date in each year from 1793 to 1979. 1979 had 1,605 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 1979-05-09: 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	1,159
50 to 100	73
100 to 150	15
150 to 200	6
200 to 250	2