Weather Records on 7 May 1988

752 weather records were set or tied worldwide on 7 May 1988. Highest significance: Yellowstone Park Mammoth, US.

Key Facts for 7 May 1988

On 7 May 1988, 752 weather records were set or tied at long-record stations worldwide.
257 were record highs and 190 were record lows, counting maximum and minimum temperature.
By timescale, 13 were all-time records, 36 monthly and 703 daily.
Yellowstone Park Mammoth set a monthly record daily snowfall of 25.4 cm (10.0 in) on 7 May 1988.
Across 168 earlier years (1795 to 2026) the same calendar date averaged 417 records.

Record Map

752 stations

752 station records on 7 May 1988 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 May 1988: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yellowstone Park Mammoth	United States	Record daily snowfall	25.4 cm (10.0 in)	71 of 100 (Major)
Gardiner	United States	Record daily precipitation	43.2 mm (1.7 in)	69 of 100 (Major)
Greybull	United States	Record daily precipitation	69.9 mm (2.8 in)	66 of 100 (Major)
Mana 1026	United States	Record daily precipitation	64.3 mm (2.5 in)	66 of 100 (Major)
Heart Mtn	United States	Record daily precipitation	63.0 mm (2.5 in)	65 of 100 (Major)
Walbundrie (Crediton Street)	Australia	Record daily precipitation	37.4 mm (1.5 in)	63 of 100 (Major)
Rairden 2WSW	United States	Record daily precipitation	59.4 mm (2.3 in)	61 of 100 (Major)
Yellowstone Park Mammoth	United States	Record daily precipitation	47.2 mm (1.9 in)	61 of 100 (Major)
Lewistown AP	United States	Record daily precipitation	63.2 mm (2.5 in)	61 of 100 (Major)
Red Lodge	United States	Record daily precipitation	102.9 mm (4.1 in)	60 of 100 (Major)
Clearmont 5 SW	United States	Record daily precipitation	50.3 mm (2.0 in)	59 of 100 (Notable)
Basin	United States	Record daily precipitation	50.8 mm (2.0 in)	57 of 100 (Notable)
Kanalohuluhulu 1075	United States	Record daily precipitation	63.0 mm (2.5 in)	56 of 100 (Notable)
Bozeman Montana State UNIV	United States	Record daily precipitation	68.1 mm (2.7 in)	54 of 100 (Notable)
Wantabadgery	Australia	Record daily precipitation	30.8 mm (1.2 in)	51 of 100 (Notable)
Lovell	United States	Record daily precipitation	38.9 mm (1.5 in)	51 of 100 (Notable)
Livingston 12 S	United States	Record daily precipitation	78.7 mm (3.1 in)	50 of 100 (Notable)
Rapelje	United States	Record daily precipitation	77.5 mm (3.1 in)	50 of 100 (Notable)
Wilsall 8 ENE	United States	Record daily precipitation	54.4 mm (2.1 in)	49 of 100 (Notable)
Deaver	United States	Record daily precipitation	59.2 mm (2.3 in)	49 of 100 (Notable)
Judith Gap	United States	Record daily precipitation	88.9 mm (3.5 in)	48 of 100 (Notable)
Gallatin Gateway 10SSW	United States	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Pryor	United States	Record daily precipitation	82.8 mm (3.3 in)	46 of 100 (Notable)
Kolo 1033	United States	Record daily precipitation	59.9 mm (2.4 in)	46 of 100 (Notable)
Broadview	United States	Record daily precipitation	50.3 mm (2.0 in)	45 of 100 (Notable)
Walla Walla Post Office	Australia	Record daily precipitation	37.1 mm (1.5 in)	44 of 100 (Notable)
Kumamoto	Japan	Record daily precipitation	77.0 mm (3.0 in)	44 of 100 (Notable)
Winifred	United States	Record daily precipitation	47.8 mm (1.9 in)	44 of 100 (Notable)
Tumut (Wattle Cres)	Australia	Record daily precipitation	40.0 mm (1.6 in)	43 of 100 (Notable)
Marseille Obs. Palais-Lonchamp	France	Record high minimum temperature	19.7 C (67.5 F)	43 of 100 (Notable)
Waiawa 943	United States	Record daily precipitation	40.1 mm (1.6 in)	43 of 100 (Notable)
Sheridan AP	United States	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Palisades	United States	Record daily precipitation	32.8 mm (1.3 in)	42 of 100 (Notable)
Flatwillow 4 ENE	United States	Record daily precipitation	52.3 mm (2.1 in)	42 of 100 (Notable)
Forks 4 NNE	United States	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Opheim 10 N	United States	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Kanalohuluhulu 1075	United States	Record low minimum temperature	1.7 C (35.1 F)	41 of 100 (Notable)
Denton	United States	Record daily precipitation	37.1 mm (1.5 in)	40 of 100 (Notable)
Jindera (Wadilock)	Australia	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
Assarai-Montante	Brazil	Record daily precipitation	65.0 mm (2.6 in)	39 of 100 (Notable)
Barra Do Acungui	Brazil	Record daily precipitation	44.6 mm (1.8 in)	39 of 100 (Notable)
Buffalo	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Noreena Downs	Australia	Record daily precipitation	28.0 mm (1.1 in)	38 of 100 (Notable)
Holbrook (Glenfalloch)	Australia	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Asosan	Japan	Record daily precipitation	104.5 mm (4.1 in)	38 of 100 (Notable)
Bridger 2 N	United States	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
Roy 8 NE	United States	Record daily precipitation	66.0 mm (2.6 in)	38 of 100 (Notable)
Cape Naturaliste	Australia	Record daily precipitation	32.4 mm (1.3 in)	37 of 100 (Notable)
Zumbrota	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Wyola 1 SW	United States	Record daily precipitation	46.5 mm (1.8 in)	37 of 100 (Notable)
Yellowtail Dam	United States	Record daily precipitation	127.0 mm (5.0 in)	37 of 100 (Notable)
Adelong Post Office	Australia	Record daily precipitation	29.4 mm (1.2 in)	36 of 100 (Notable)
Daysdale (Dennison Street)	Australia	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Lewistown 11 SSE	United States	Record daily precipitation	61.7 mm (2.4 in)	36 of 100 (Notable)
Emblem	United States	Record daily precipitation	46.0 mm (1.8 in)	36 of 100 (Notable)
Niu Ridge 1035	United States	Record daily precipitation	62.2 mm (2.4 in)	36 of 100 (Notable)
Iwami Airport	Japan	Record daily precipitation	65.0 mm (2.6 in)	35 of 100 (Notable)
Fukuyama	Japan	Record daily precipitation	47.0 mm (1.9 in)	35 of 100 (Notable)
Reserve	United States	Record low minimum temperature	8.9 C (48.0 F)	35 of 100 (Notable)
Windermere (Acacia House)	Australia	Record daily precipitation	34.4 mm (1.4 in)	34 of 100 (Routine)

Counts by Type and Timescale

752 records

Records set or tied on 7 May 1988 by type: Highest daily maximum 83, Lowest daily maximum 104, Highest daily minimum 174, Lowest daily minimum 86, Heaviest daily rainfall 284, Heaviest daily snowfall 9, Deepest snow cover 12.

Records on 7 May 1988 by type
Record type	Records
Highest daily maximum	83
Lowest daily maximum	104
Highest daily minimum	174
Lowest daily minimum	86
Heaviest daily rainfall	284
Heaviest daily snowfall	9
Deepest snow cover	12

Records on 7 May 1988 by timescale: all-time 13, monthly 36, daily 703.

How Much Records Were Beaten By

608 broken records

Margins by which the 608 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 134.0. Ties are not counted.

Top 20 by Significance

7 May 1988

Top 20 records on 7 May 1988 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 May 1988	Yellowstone Park Mammoth, US	monthly snowfall	25.4 cm (10.0 in)	10.2 cm (4.0 in)	89 years	71 of 100 (Major)
7 May 1988	Gardiner, US	all-time rain	43.2 mm (1.7 in)	16.5 mm (0.6 in)	26 years	69 of 100 (Major)
7 May 1988	Greybull, US	all-time rain	69.9 mm (2.8 in)	24.2 mm (1.0 in)	11 years	66 of 100 (Major)
7 May 1988	Mana 1026, US	daily rain	64.3 mm (2.5 in)	57.9 mm (2.3 in)	60 years	66 of 100 (Major)
7 May 1988	Heart Mtn, US	all-time rain	63.0 mm (2.5 in)	20.6 mm (0.8 in)	36 years	65 of 100 (Major)
7 May 1988	Walbundrie (Crediton Street), AU	daily rain	37.4 mm (1.5 in)	20.9 mm (0.8 in)	96 years	63 of 100 (Major)
7 May 1988	Rairden 2WSW, US	all-time rain	59.4 mm (2.3 in)	16.5 mm (0.6 in)	10 years	61 of 100 (Major)
7 May 1988	Yellowstone Park Mammoth, US	monthly rain	47.2 mm (1.9 in)	16.7 mm (0.7 in)	27 years	61 of 100 (Major)
7 May 1988	Lewistown AP, US	daily rain	63.2 mm (2.5 in)	45.2 mm (1.8 in)	40 years	61 of 100 (Major)
7 May 1988	Red Lodge, US	all-time rain	102.9 mm (4.1 in)	13.0 mm (0.5 in)	64 years	60 of 100 (Major)
7 May 1988	Clearmont 5 SW, US	daily rain	50.3 mm (2.0 in)	28.5 mm (1.1 in)	38 years	59 of 100 (Notable)
7 May 1988	Basin, US	monthly rain	50.8 mm (2.0 in)	9.4 mm (0.37 in)	75 years	57 of 100 (Notable)
7 May 1988	Kanalohuluhulu 1075, US	daily rain	63.0 mm (2.5 in)	39.9 mm (1.6 in)	47 years	56 of 100 (Notable)
7 May 1988	Bozeman Montana State UNIV, US	all-time rain	68.1 mm (2.7 in)	7.9 mm (0.31 in)	49 years	54 of 100 (Notable)
7 May 1988	Wantabadgery, AU	daily rain	30.8 mm (1.2 in)	12.8 mm (0.5 in)	85 years	51 of 100 (Notable)
7 May 1988	Lovell, US	daily rain	38.9 mm (1.5 in)	28.7 mm (1.1 in)	7 years	51 of 100 (Notable)
7 May 1988	Livingston 12 S, US	all-time rain	78.7 mm (3.1 in)	20.5 mm (0.8 in)	8 years	50 of 100 (Notable)
7 May 1988	Rapelje, US	all-time rain	77.5 mm (3.1 in)	15.8 mm (0.6 in)	13 years	50 of 100 (Notable)
7 May 1988	Wilsall 8 ENE, US	daily rain	54.4 mm (2.1 in)	33.3 mm (1.3 in)	23 years	49 of 100 (Notable)
7 May 1988	Deaver, US	all-time rain	59.2 mm (2.3 in)	8.1 mm (0.32 in)	26 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

1795 to 1988

Records set or tied on this calendar date in each year from 1795 to 1988. 1988 had 752 records.

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

Records on 05-07 in each year
Year	Records
1795	2
1805	1
1816	1
1825	2
1837	1
1838	1
1844	1
1845	2
1846	1
1848	2
1850	2
1852	1
1853	1
1856	3
1857	1
1861	3
1862	1
1863	1
1864	1
1867	3
1869	1
1870	1
1872	1
1874	2
1876	3
1878	1
1879	2
1880	1
1884	2
1885	1
1886	4
1887	1
1888	1
1889	2
1890	4
1891	4
1892	2
1894	4
1895	2
1897	5
1898	7
1899	3
1900	10
1901	1
1902	6
1903	13
1904	19
1905	21
1906	15
1907	14
1908	29
1909	15
1910	16
1911	14
1912	14
1913	30
1914	37
1915	40
1916	34
1917	188
1918	60
1919	263
1920	59
1921	41
1922	40
1923	119
1924	141
1925	207
1926	227
1927	191
1928	204
1929	224
1930	637
1931	473
1932	288
1933	291
1934	698
1935	298
1936	466
1937	121
1938	467
1939	194
1940	317
1941	317
1942	270
1943	416
1944	476
1945	751
1946	339
1947	727
1948	338
1949	439
1950	526
1951	226
1952	485
1953	541
1954	481
1955	393
1956	665
1957	546
1958	585
1959	335
1960	899
1961	442
1962	381
1963	825
1964	687
1965	671
1966	762
1967	973
1968	756
1969	678
1970	822
1971	364
1972	515
1973	447
1974	743
1975	784
1976	782
1977	662
1978	925
1979	888
1980	593
1981	710
1982	802
1983	724
1984	1,300
1985	557
1986	1,163
1987	1,115
1988	752
1989	1,880
1990	1,024
1991	599
1992	1,830
1993	831
1994	621
1995	997
1996	880
1997	1,359
1998	1,166
1999	1,008
2000	1,693
2001	743
2002	1,344
2003	1,138
2004	1,397
2005	645
2006	833
2007	1,047
2008	526
2009	735
2010	1,123
2011	558
2012	709
2013	633
2014	646
2015	569
2016	677
2017	543
2018	542
2019	522
2020	577
2021	484
2022	784
2023	667
2024	858
2025	635
2026	715

Download the Data

Data for records on 1988-05-07: 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 20	544
20 to 40	40
40 to 60	14
60 to 80	5
80 to 100	2
100 to 120	2
120 to 140	1