Weather Records on 17 July 2017

398 weather records were set or tied worldwide on 17 July 2017. Highest significance: St Marys 3 W, US.

Key Facts for 17 July 2017

On 17 July 2017, 398 weather records were set or tied at long-record stations worldwide.
204 were record highs and 76 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 9 monthly and 383 daily.
St Marys 3 W set a daily record precipitation of 77.5 mm (3.1 in) on 17 July 2017.
Across 163 earlier years (1793 to 2026) the same calendar date averaged 445 records.

Record Map

398 stations

398 station records on 17 July 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 July 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
St Marys 3 W	United States	Record daily precipitation	77.5 mm (3.1 in)	69 of 100 (Major)
Larissa	Greece	Record daily precipitation	67.6 mm (2.7 in)	58 of 100 (Notable)
Koloa Mauka 994	United States	Record daily precipitation	57.2 mm (2.3 in)	58 of 100 (Notable)
Velikie Luki	Russia	Record daily precipitation	26.8 mm (1.1 in)	53 of 100 (Notable)
Dahlonega 4WSW	United States	Record daily precipitation	53.1 mm (2.1 in)	53 of 100 (Notable)
Tonopah AP	United States	Record high minimum temperature	23.9 C (75.0 F)	47 of 100 (Notable)
Cakir	Russia	Record daily precipitation	53.3 mm (2.1 in)	44 of 100 (Notable)
Rock Is L&D 15	United States	Record low minimum temperature	12.2 C (54.0 F)	44 of 100 (Notable)
Tuscola	United States	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Litchfield Park	United States	Record daily precipitation	87.9 mm (3.5 in)	43 of 100 (Notable)
Kim 15 NNE	United States	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Oceanside Marina	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Plentywood	United States	Record high maximum temperature	38.3 C (100.9 F)	42 of 100 (Notable)
Pte de la Hague	France	Record high minimum temperature	16.6 C (61.9 F)	41 of 100 (Notable)
Pahrump 4 NW	United States	Record high minimum temperature	27.8 C (82.0 F)	41 of 100 (Notable)
Davenport	United States	Record low minimum temperature	1.7 C (35.1 F)	41 of 100 (Notable)
Racine Wwtp	United States	Record low maximum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Hale Loud Dam	United States	Record low maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Cooperstown	United States	Record low maximum temperature	18.9 C (66.0 F)	40 of 100 (Notable)
Phrae	Thailand	Record daily precipitation	61.7 mm (2.4 in)	39 of 100 (Notable)
Imlay	United States	Record low minimum temperature	3.9 C (39.0 F)	39 of 100 (Notable)
Cordoba Aero	Argentina	Record low minimum temperature	-8.3 C (17.1 F)	38 of 100 (Notable)
Enontekio Kilpisjarvi Kylakesk	Finland	Record daily precipitation	32.4 mm (1.3 in)	38 of 100 (Notable)
Asahikawa	Japan	Record daily precipitation	71.9 mm (2.8 in)	38 of 100 (Notable)
Orland	Norway	Record daily precipitation	29.5 mm (1.2 in)	38 of 100 (Notable)
Munising	United States	Record low maximum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Pokrovskaja	Russia	Record daily precipitation	69.1 mm (2.7 in)	37 of 100 (Notable)
Blue Ridge Rs	United States	Record daily precipitation	31.2 mm (1.2 in)	36 of 100 (Notable)
Johnston 4 SW	United States	Record daily precipitation	102.1 mm (4.0 in)	35 of 100 (Notable)
Gardiner	United States	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Gainesville Rgnl AP	United States	Record daily precipitation	77.5 mm (3.1 in)	34 of 100 (Routine)
Kurdjali	Bulgaria	Record low maximum temperature	19.6 C (67.3 F)	33 of 100 (Routine)
Kautokeino	Norway	Record daily precipitation	32.0 mm (1.3 in)	33 of 100 (Routine)
Chamical Aero	Argentina	Record low minimum temperature	-8.3 C (17.1 F)	32 of 100 (Routine)
Larissa	Greece	Record low maximum temperature	18.6 C (65.5 F)	32 of 100 (Routine)
Barrow AP	United States	Record high minimum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Sihccajavri	Norway	Record daily precipitation	26.8 mm (1.1 in)	31 of 100 (Routine)
Skei I Jolster	Norway	Record daily precipitation	65.4 mm (2.6 in)	30 of 100 (Routine)
Pleasant Valley	United States	Record low maximum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Cachuma Lake	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Lamar	United States	Record daily precipitation	32.8 mm (1.3 in)	30 of 100 (Routine)
Leo 6 SW	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Lihue WSO AP 1020.1	United States	Record high maximum temperature	30.6 C (87.1 F)	30 of 100 (Routine)
Campo 7 S	United States	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Kwajalein	Marshall Islands	Record daily precipitation	64.5 mm (2.5 in)	28 of 100 (Routine)
Magadan	Russia	Record high minimum temperature	14.3 C (57.7 F)	28 of 100 (Routine)
Albany Intl AP	United States	Record daily precipitation	33.0 mm (1.3 in)	28 of 100 (Routine)
Molokai Kaunakakai Molokai AP	United States	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
East Sale Comparison	Australia	Record high maximum temperature	18.0 C (64.4 F)	27 of 100 (Routine)
Shimizu	Japan	Record high maximum temperature	33.5 C (92.3 F)	27 of 100 (Routine)
Inhambane	Mozambique	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Soria	Spain	Record high minimum temperature	17.3 C (63.1 F)	27 of 100 (Routine)
Grand Portage	United States	Record low minimum temperature	5.0 C (41.0 F)	27 of 100 (Routine)
Sandhill Rsch - Elgin	United States	Record daily precipitation	69.9 mm (2.8 in)	27 of 100 (Routine)
Williamsport Rgnl AP	United States	Record daily precipitation	57.4 mm (2.3 in)	27 of 100 (Routine)
Port-Aux-Francais (Iles Kergu	France	Record daily precipitation	45.0 mm (1.8 in)	26 of 100 (Routine)
Usher Twr	United States	Record daily precipitation	68.8 mm (2.7 in)	26 of 100 (Routine)
Dandong	China	Record high minimum temperature	23.4 C (74.1 F)	25 of 100 (Routine)
Gilroy	United States	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Yellow Jacket 2W	United States	Record low minimum temperature	6.7 C (44.1 F)	25 of 100 (Routine)

Counts by Type and Timescale

398 records

Records set or tied on 17 July 2017 by type: Highest daily maximum 87, Lowest daily maximum 26, Highest daily minimum 117, Lowest daily minimum 50, Heaviest daily rainfall 118.

Records on 17 July 2017 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	26
Highest daily minimum	117
Lowest daily minimum	50
Heaviest daily rainfall	118
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 July 2017 by timescale: all-time 6, monthly 9, daily 383.

How Much Records Were Beaten By

314 broken records

Margins by which the 314 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.1. Ties are not counted.

Top 20 by Significance

17 July 2017

Top 20 records on 17 July 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 July 2017	St Marys 3 W, US	daily rain	77.5 mm (3.1 in)	51.1 mm (2.0 in)	74 years	69 of 100 (Major)
17 July 2017	Larissa, GR	daily rain	67.6 mm (2.7 in)	45.4 mm (1.8 in)	40 years	58 of 100 (Notable)
17 July 2017	Koloa Mauka 994, US	daily rain	57.2 mm (2.3 in)	37.9 mm (1.5 in)	71 years	58 of 100 (Notable)
17 July 2017	Velikie Luki, RU	daily rain	26.8 mm (1.1 in)	9.4 mm (0.37 in)	108 years	53 of 100 (Notable)
17 July 2017	Dahlonega 4WSW, US	daily rain	53.1 mm (2.1 in)	19.1 mm (0.8 in)	100 years	53 of 100 (Notable)
17 July 2017	Tonopah AP, US	all-time high min	23.9 C (75.0 F)	1.7 C (3.1 F)	55 years	47 of 100 (Notable)
17 July 2017	Cakir, RU	daily rain	53.3 mm (2.1 in)	20.5 mm (0.8 in)	44 years	44 of 100 (Notable)
17 July 2017	Rock Is L&D 15, US	daily low min	12.2 C (54.0 F)	1.7 C (3.1 F)	142 years	44 of 100 (Notable)
17 July 2017	Tuscola, US	daily rain	40.1 mm (1.6 in)	17.5 mm (0.7 in)	79 years	44 of 100 (Notable)
17 July 2017	Litchfield Park, US	all-time rain	87.9 mm (3.5 in)	2.6 mm (0.10 in)	33 years	43 of 100 (Notable)
17 July 2017	Kim 15 NNE, US	daily rain	47.5 mm (1.9 in)	35.3 mm (1.4 in)	12 years	43 of 100 (Notable)
17 July 2017	Oceanside Marina, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	98 years	42 of 100 (Notable)
17 July 2017	Plentywood, US	daily high max	38.3 C (100.9 F)	1.1 C (2.0 F)	110 years	42 of 100 (Notable)
17 July 2017	Pte de la Hague, FR	daily high min	16.6 C (61.9 F)	0.6 C (1.1 F)	96 years	41 of 100 (Notable)
17 July 2017	Pahrump 4 NW, US	daily high min	27.8 C (82.0 F)	1.1 C (2.0 F)	95 years	41 of 100 (Notable)
17 July 2017	Davenport, US	daily low min	1.7 C (35.1 F)	0.5 C (0.9 F)	108 years	41 of 100 (Notable)
17 July 2017	Racine Wwtp, US	daily low max	18.9 C (66.0 F)	1.1 C (2.0 F)	99 years	41 of 100 (Notable)
17 July 2017	Hale Loud Dam, US	daily low max	20.6 C (69.1 F)	0.5 C (0.9 F)	99 years	40 of 100 (Notable)
17 July 2017	Cooperstown, US	daily low max	18.9 C (66.0 F)	1.1 C (2.0 F)	92 years	40 of 100 (Notable)
17 July 2017	Phrae, TH	daily rain	61.7 mm (2.4 in)	28.2 mm (1.1 in)	46 years	39 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 2017

Records set or tied on this calendar date in each year from 1793 to 2017. 2017 had 398 records.

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

Records on 07-17 in each year
Year	Records
1793	1
1798	1
1799	1
1801	2
1802	1
1821	1
1827	1
1833	1
1840	1
1842	1
1845	2
1852	1
1862	1
1863	1
1865	2
1866	1
1871	1
1874	1
1875	2
1877	1
1880	1
1881	2
1882	2
1883	5
1884	1
1887	1
1888	2
1889	4
1890	4
1892	5
1893	3
1894	4
1895	1
1896	3
1897	1
1898	2
1899	4
1900	4
1901	6
1902	6
1903	13
1904	4
1905	9
1906	13
1907	12
1908	32
1909	16
1910	8
1911	52
1912	13
1913	26
1914	67
1915	71
1916	27
1917	62
1918	41
1919	45
1920	50
1921	120
1922	206
1923	105
1924	165
1925	275
1926	251
1927	118
1928	116
1929	154
1930	366
1931	492
1932	293
1933	216
1934	438
1935	245
1936	815
1937	313
1938	303
1939	540
1940	319
1941	386
1942	522
1943	321
1944	236
1945	681
1946	523
1947	505
1948	278
1949	405
1950	645
1951	356
1952	772
1953	557
1954	517
1955	512
1956	608
1957	298
1958	693
1959	631
1960	324
1961	408
1962	421
1963	223
1964	481
1965	753
1966	454
1967	965
1968	707
1969	741
1970	486
1971	790
1972	634
1973	680
1974	691
1975	775
1976	1,041
1977	764
1978	794
1979	642
1980	1,137
1981	628
1982	850
1983	1,120
1984	875
1985	483
1986	1,214
1987	1,388
1988	1,239
1989	1,289
1990	953
1991	763
1992	1,055
1993	956
1994	631
1995	917
1996	911
1997	816
1998	1,031
1999	925
2000	1,166
2001	916
2002	995
2003	1,396
2004	908
2005	1,184
2006	1,509
2007	1,218
2008	508
2009	1,218
2010	965
2011	1,101
2012	934
2013	819
2014	1,456
2015	831
2016	679
2017	398
2018	750
2019	477
2020	515
2021	625
2022	791
2023	1,060
2024	814
2025	966
2026	860

Download the Data

Data for records on 2017-07-17: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	290
10 to 20	13
20 to 30	5
30 to 40	4
40 to 50	1
50 to 60	1