Weather Records on 30 July 1997

933 weather records were set or tied worldwide on 30 July 1997. Highest significance: Hartley 4 ESE, US.

Key Facts for 30 July 1997

On 30 July 1997, 933 weather records were set or tied at long-record stations worldwide.
325 were record highs and 334 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 32 monthly and 896 daily.
Hartley 4 ESE set an all-time record daily precipitation of 145.0 mm (5.7 in) on 30 July 1997.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 437 records.

Record Map

933 stations

933 station records on 30 July 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hartley 4 ESE	United States	Record daily precipitation	145.0 mm (5.7 in)	85 of 100 (Exceptional)
Kailua 446	United States	Record daily precipitation	208.3 mm (8.2 in)	82 of 100 (Exceptional)
Naalehu 14	United States	Record daily precipitation	125.7 mm (4.9 in)	74 of 100 (Major)
Aztec Ruins Nm	United States	Record daily precipitation	31.0 mm (1.2 in)	69 of 100 (Major)
Lyman	United States	Record daily precipitation	53.3 mm (2.1 in)	67 of 100 (Major)
Kaumana 88.1	United States	Record daily precipitation	240.8 mm (9.5 in)	62 of 100 (Major)
Leroy 5 WSW	United States	Record daily precipitation	127.8 mm (5.0 in)	60 of 100 (Major)
Rush 1N	United States	Record daily precipitation	66.8 mm (2.6 in)	60 of 100 (Major)
Sterling	United States	Record daily precipitation	48.3 mm (1.9 in)	60 of 100 (Major)
Ft Sumner	United States	Record daily precipitation	49.8 mm (2.0 in)	59 of 100 (Notable)
Hawaii Vol Np HQ 54	United States	Record daily precipitation	236.2 mm (9.3 in)	58 of 100 (Notable)
Kulani Camp 79	United States	Record daily precipitation	312.4 mm (12.3 in)	56 of 100 (Notable)
Wauseon Wtp	United States	Record low minimum temperature	-1.1 C (30.0 F)	54 of 100 (Notable)
Haleakala Rs 338	United States	Record daily precipitation	87.4 mm (3.4 in)	54 of 100 (Notable)
Troy	United States	Record daily precipitation	50.0 mm (2.0 in)	53 of 100 (Notable)
Coulee Dam 1 SW	United States	Record daily precipitation	30.5 mm (1.2 in)	52 of 100 (Notable)
Ft Lewis	United States	Record daily precipitation	34.0 mm (1.3 in)	51 of 100 (Notable)
Madras	United States	Record daily precipitation	39.9 mm (1.6 in)	51 of 100 (Notable)
Buffalo Gap	United States	Record daily precipitation	105.4 mm (4.1 in)	51 of 100 (Notable)
Aztec Ruins Nm	United States	Record low maximum temperature	21.1 C (70.0 F)	50 of 100 (Notable)
Utuado	Puerto Rico [United States]	Record daily precipitation	55.4 mm (2.2 in)	49 of 100 (Notable)
Tonsina	United States	Record daily precipitation	32.3 mm (1.3 in)	49 of 100 (Notable)
Fruitland	United States	Record low maximum temperature	22.8 C (73.0 F)	48 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Cortez	United States	Record low maximum temperature	20.0 C (68.0 F)	47 of 100 (Notable)
Delta	United States	Record low maximum temperature	22.2 C (72.0 F)	47 of 100 (Notable)
Louisville 1 E	United States	Record daily precipitation	110.7 mm (4.4 in)	47 of 100 (Notable)
Fulton 3 W	United States	Record high minimum temperature	26.1 C (79.0 F)	47 of 100 (Notable)
Tapanatepec	Mexico	Record daily precipitation	130.8 mm (5.1 in)	46 of 100 (Notable)
Kapapala Rch 36	United States	Record daily precipitation	228.6 mm (9.0 in)	46 of 100 (Notable)
Monticello	United States	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Meade	United States	Record daily precipitation	30.5 mm (1.2 in)	45 of 100 (Notable)
Hay Springs	United States	Record low maximum temperature	16.7 C (62.1 F)	45 of 100 (Notable)
Bloomfield 3 SE	United States	Record low maximum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Hendersonville 1 NE	United States	Record low minimum temperature	7.8 C (46.0 F)	45 of 100 (Notable)
Hana AP 355	United States	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Northdale	United States	Record low maximum temperature	18.3 C (64.9 F)	44 of 100 (Notable)
Carville 2 SW	United States	Record daily precipitation	99.1 mm (3.9 in)	44 of 100 (Notable)
Winnsboro 5 SSE	United States	Record daily precipitation	65.8 mm (2.6 in)	44 of 100 (Notable)
Partoun	United States	Record low maximum temperature	28.3 C (82.9 F)	44 of 100 (Notable)
Keaau 92	United States	Record daily precipitation	154.4 mm (6.1 in)	44 of 100 (Notable)
La Grange 1N	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Purdum	United States	Record low maximum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Ashwood	United States	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Elizabethton	United States	Record low maximum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Blanding	United States	Record low maximum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Ostuta	Mexico	Record daily precipitation	110.5 mm (4.4 in)	42 of 100 (Notable)
Kit Carson	United States	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Chaco Canyon Natl Mon	United States	Record daily precipitation	25.7 mm (1.0 in)	42 of 100 (Notable)
Bhubaneswar	India	Record daily precipitation	172.0 mm (6.8 in)	41 of 100 (Notable)
Water Valley	United States	Record daily precipitation	54.1 mm (2.1 in)	41 of 100 (Notable)
Bloomfield 3 SE	United States	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Waverly	United States	Record low minimum temperature	6.7 C (44.1 F)	41 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high minimum temperature	14.6 C (58.3 F)	40 of 100 (Notable)
El Triunfo	Mexico	Record daily precipitation	66.8 mm (2.6 in)	40 of 100 (Notable)
Stora_Segerstad	Sweden	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Ramon 8 SW	United States	Record daily precipitation	31.2 mm (1.2 in)	40 of 100 (Notable)
Cottonwood 2 E	United States	Record low maximum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Austin-Camp Mabry	United States	Record daily precipitation	53.8 mm (2.1 in)	40 of 100 (Notable)
New Raymer	United States	Record daily precipitation	91.4 mm (3.6 in)	39 of 100 (Notable)

Counts by Type and Timescale

933 records

Records set or tied on 30 July 1997 by type: Highest daily maximum 131, Lowest daily maximum 180, Highest daily minimum 194, Lowest daily minimum 154, Heaviest daily rainfall 274.

Records on 30 July 1997 by type
Record type	Records
Highest daily maximum	131
Lowest daily maximum	180
Highest daily minimum	194
Lowest daily minimum	154
Heaviest daily rainfall	274
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 July 1997 by timescale: all-time 5, monthly 32, daily 896.

How Much Records Were Beaten By

682 broken records

Margins by which the 682 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 119.6. Ties are not counted.

Top 20 by Significance

30 July 1997

Top 20 records on 30 July 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1997	Hartley 4 ESE, US	all-time rain	145.0 mm (5.7 in)	66.8 mm (2.6 in)	50 years	85 of 100 (Exceptional)
30 July 1997	Kailua 446, US	monthly rain	208.3 mm (8.2 in)	50.1 mm (2.0 in)	79 years	82 of 100 (Exceptional)
30 July 1997	Naalehu 14, US	daily rain	125.7 mm (4.9 in)	113.8 mm (4.5 in)	86 years	74 of 100 (Major)
30 July 1997	Aztec Ruins Nm, US	daily rain	31.0 mm (1.2 in)	22.1 mm (0.9 in)	64 years	69 of 100 (Major)
30 July 1997	Lyman, US	daily rain	53.3 mm (2.1 in)	35.0 mm (1.4 in)	70 years	67 of 100 (Major)
30 July 1997	Kaumana 88.1, US	daily rain	240.8 mm (9.5 in)	105.4 mm (4.1 in)	46 years	62 of 100 (Major)
30 July 1997	Leroy 5 WSW, US	all-time rain	127.8 mm (5.0 in)	29.5 mm (1.2 in)	8 years	60 of 100 (Major)
30 July 1997	Rush 1N, US	daily rain	66.8 mm (2.6 in)	34.3 mm (1.4 in)	40 years	60 of 100 (Major)
30 July 1997	Sterling, US	daily rain	48.3 mm (1.9 in)	22.6 mm (0.9 in)	82 years	60 of 100 (Major)
30 July 1997	Ft Sumner, US	daily rain	49.8 mm (2.0 in)	35.8 mm (1.4 in)	64 years	59 of 100 (Notable)
30 July 1997	Hawaii Vol Np HQ 54, US	monthly rain	236.2 mm (9.3 in)	86.8 mm (3.4 in)	15 years	58 of 100 (Notable)
30 July 1997	Kulani Camp 79, US	monthly rain	312.4 mm (12.3 in)	54.8 mm (2.2 in)	39 years	56 of 100 (Notable)
30 July 1997	Wauseon Wtp, US	monthly low min	-1.1 C (30.0 F)	5.5 C (9.9 F)	67 years	54 of 100 (Notable)
30 July 1997	Haleakala Rs 338, US	monthly rain	87.4 mm (3.4 in)	27.7 mm (1.1 in)	17 years	54 of 100 (Notable)
30 July 1997	Troy, US	monthly rain	50.0 mm (2.0 in)	16.7 mm (0.7 in)	14 years	53 of 100 (Notable)
30 July 1997	Coulee Dam 1 SW, US	daily rain	30.5 mm (1.2 in)	26.2 mm (1.0 in)	23 years	52 of 100 (Notable)
30 July 1997	Ft Lewis, US	daily rain	34.0 mm (1.3 in)	15.7 mm (0.6 in)	68 years	51 of 100 (Notable)
30 July 1997	Madras, US	daily rain	39.9 mm (1.6 in)	35.6 mm (1.4 in)	12 years	51 of 100 (Notable)
30 July 1997	Buffalo Gap, US	all-time rain	105.4 mm (4.1 in)	22.8 mm (0.9 in)	20 years	51 of 100 (Notable)
30 July 1997	Aztec Ruins Nm, US	daily low max	21.1 C (70.0 F)	5.6 C (10.1 F)	64 years	50 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

1794 to 1997

Records set or tied on this calendar date in each year from 1794 to 1997. 1997 had 933 records.

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

Records on 07-30 in each year
Year	Records
1794	2
1797	1
1827	1
1828	2
1829	1
1830	1
1834	1
1837	2
1838	1
1840	1
1841	1
1843	1
1854	1
1857	1
1858	2
1860	4
1863	1
1867	1
1868	1
1869	2
1870	1
1874	2
1875	1
1876	1
1877	2
1879	1
1880	2
1885	3
1886	5
1887	6
1888	5
1889	1
1890	2
1891	1
1892	1
1893	10
1894	6
1895	2
1896	2
1897	4
1898	8
1899	2
1900	4
1901	11
1902	6
1903	25
1904	17
1905	29
1906	22
1907	11
1908	23
1909	30
1910	8
1911	54
1912	21
1913	34
1914	52
1915	26
1916	150
1917	93
1918	42
1919	19
1920	188
1921	193
1922	40
1923	428
1924	80
1925	275
1926	186
1927	109
1928	210
1929	221
1930	170
1931	432
1932	275
1933	451
1934	619
1935	340
1936	452
1937	245
1938	388
1939	395
1940	562
1941	371
1942	304
1943	397
1944	289
1945	299
1946	409
1947	394
1948	489
1949	512
1950	552
1951	322
1952	581
1953	345
1954	504
1955	787
1956	506
1957	289
1958	344
1959	391
1960	793
1961	511
1962	378
1963	308
1964	483
1965	978
1966	527
1967	282
1968	530
1969	506
1970	431
1971	2,319
1972	758
1973	434
1974	569
1975	1,048
1976	590
1977	641
1978	646
1979	761
1980	962
1981	851
1982	821
1983	904
1984	997
1985	1,029
1986	952
1987	1,084
1988	826
1989	1,227
1990	795
1991	734
1992	1,003
1993	965
1994	1,631
1995	1,207
1996	1,317
1997	933
1998	1,240
1999	1,456
2000	1,030
2001	1,400
2002	1,346
2003	1,163
2004	936
2005	788
2006	1,103
2007	1,160
2008	763
2009	1,328
2010	1,331
2011	1,003
2012	731
2013	737
2014	1,199
2015	682
2016	460
2017	464
2018	1,038
2019	486
2020	763
2021	839
2022	845
2023	683
2024	705
2025	869
2026	1,001

Download the Data

Data for records on 1997-07-30: 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	639
20 to 40	26
40 to 60	10
60 to 80	2
80 to 100	1
100 to 120	4