Weather Records on 27 July 2017

460 weather records were set or tied worldwide on 27 July 2017. Highest significance: Arhangelsk, RU.

Key Facts for 27 July 2017

On 27 July 2017, 460 weather records were set or tied at long-record stations worldwide.
260 were record highs and 34 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 19 monthly and 436 daily.
Arhangelsk set a daily record precipitation of 52.7 mm (2.1 in) on 27 July 2017.
Across 162 earlier years (1805 to 2026) the same calendar date averaged 453 records.

Record Map

460 stations

460 station records on 27 July 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 July 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Arhangelsk	Russia	Record daily precipitation	52.7 mm (2.1 in)	71 of 100 (Major)
Vittangi	Sweden	Record daily precipitation	33.6 mm (1.3 in)	63 of 100 (Major)
Harrisonville	United States	Record daily precipitation	163.8 mm (6.4 in)	58 of 100 (Notable)
Rocky Ford 2 SE	United States	Record daily precipitation	75.4 mm (3.0 in)	56 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	50.8 mm (2.0 in)	56 of 100 (Notable)
Adel	United States	Record daily precipitation	42.4 mm (1.7 in)	55 of 100 (Notable)
Lawrenceburg Filt Plt	United States	Record daily precipitation	158.8 mm (6.3 in)	55 of 100 (Notable)
Painted Desert Np	United States	Record daily precipitation	38.4 mm (1.5 in)	54 of 100 (Notable)
Vytegra	Russia	Record daily precipitation	87.9 mm (3.5 in)	52 of 100 (Notable)
Castle Rock	United States	Record daily precipitation	74.9 mm (2.9 in)	51 of 100 (Notable)
Richfield	United States	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	30.5 mm (1.2 in)	46 of 100 (Notable)
Atlantic 1 NE	United States	Record daily precipitation	43.2 mm (1.7 in)	46 of 100 (Notable)
Smithfield	United States	Record high minimum temperature	26.7 C (80.1 F)	46 of 100 (Notable)
Louisiana	United States	Record daily precipitation	79.0 mm (3.1 in)	45 of 100 (Notable)
Custer	United States	Record daily precipitation	65.5 mm (2.6 in)	45 of 100 (Notable)
Edwardsville 2 W	United States	Record daily precipitation	50.5 mm (2.0 in)	44 of 100 (Notable)
Albemarle	United States	Record low maximum temperature	23.3 C (73.9 F)	44 of 100 (Notable)
Brodhead Wwtp	United States	Record daily precipitation	48.3 mm (1.9 in)	44 of 100 (Notable)
Hefei	China	Record high maximum temperature	41.1 C (106.0 F)	43 of 100 (Notable)
Sedalia Wtp	United States	Record daily precipitation	52.1 mm (2.1 in)	43 of 100 (Notable)
Mayport Pilot STN	United States	Record daily precipitation	38.9 mm (1.5 in)	43 of 100 (Notable)
Concordia	United States	Record daily precipitation	101.6 mm (4.0 in)	42 of 100 (Notable)
Clayton Muni Air Pk	United States	Record daily precipitation	40.1 mm (1.6 in)	42 of 100 (Notable)
Zharkent	Kazakhstan	Record high maximum temperature	38.6 C (101.5 F)	41 of 100 (Notable)
Almaty	Kazakhstan	Record high minimum temperature	27.3 C (81.1 F)	41 of 100 (Notable)
Versailles	United States	Record daily precipitation	40.4 mm (1.6 in)	41 of 100 (Notable)
Nebraska City 2NW	United States	Record daily precipitation	39.4 mm (1.6 in)	41 of 100 (Notable)
Santa Fe Co Muni AP	United States	Record daily precipitation	34.8 mm (1.4 in)	41 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	34.3 mm (1.4 in)	40 of 100 (Notable)
Butler 4W	United States	Record daily precipitation	96.3 mm (3.8 in)	40 of 100 (Notable)
Houston	United States	Record high minimum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Pudoz	Russia	Record daily precipitation	26.9 mm (1.1 in)	39 of 100 (Notable)
Greenville	United States	Record daily precipitation	99.8 mm (3.9 in)	39 of 100 (Notable)
Villanueva	United States	Record daily precipitation	61.0 mm (2.4 in)	39 of 100 (Notable)
Augusta	United States	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
Tacony 13 SE	United States	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Denison	United States	Record daily precipitation	48.3 mm (1.9 in)	38 of 100 (Notable)
Belle Fourche 22 NNW	United States	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Komrat	Moldova	Record daily precipitation	72.9 mm (2.9 in)	37 of 100 (Notable)
Mudjug	Russia	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Pinega	Russia	Record daily precipitation	39.1 mm (1.5 in)	37 of 100 (Notable)
Mt Olive 1 E	United States	Record daily precipitation	69.3 mm (2.7 in)	37 of 100 (Notable)
Belltower	United States	Record daily precipitation	36.1 mm (1.4 in)	37 of 100 (Notable)
Olathe Johnson Co Ind AP	United States	Record daily precipitation	54.4 mm (2.1 in)	37 of 100 (Notable)
Windsor	United States	Record daily precipitation	47.2 mm (1.9 in)	36 of 100 (Notable)
Great Falls 16St	United States	Record high minimum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Bowling Green 1 E	United States	Record daily precipitation	69.3 mm (2.7 in)	35 of 100 (Notable)
Sweet Springs	United States	Record daily precipitation	94.7 mm (3.7 in)	35 of 100 (Notable)
Bajramaly	Turkmenistan	Record high maximum temperature	43.2 C (109.8 F)	34 of 100 (Routine)
Stoneville Exp STN	United States	Record high minimum temperature	27.2 C (81.0 F)	34 of 100 (Routine)
Pleasant Valley	United States	Record low maximum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Unity Village	United States	Record daily precipitation	128.0 mm (5.0 in)	33 of 100 (Routine)
Geneva	United States	Record daily precipitation	37.3 mm (1.5 in)	33 of 100 (Routine)
Daroca	Spain	Record high maximum temperature	37.9 C (100.2 F)	32 of 100 (Routine)
Cascade 5 S	United States	Record high minimum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Hilok	Russia	Record low minimum temperature	3.8 C (38.8 F)	31 of 100 (Routine)
Kielder Castle	United Kingdom	Record daily precipitation	36.4 mm (1.4 in)	31 of 100 (Routine)
Tonganoxie 5SE	United States	Record daily precipitation	90.2 mm (3.6 in)	31 of 100 (Routine)
Nanchang	China	Record high minimum temperature	31.6 C (88.9 F)	30 of 100 (Routine)

Counts by Type and Timescale

460 records

Records set or tied on 27 July 2017 by type: Highest daily maximum 108, Lowest daily maximum 22, Highest daily minimum 152, Lowest daily minimum 12, Heaviest daily rainfall 166.

Records on 27 July 2017 by type
Record type	Records
Highest daily maximum	108
Lowest daily maximum	22
Highest daily minimum	152
Lowest daily minimum	12
Heaviest daily rainfall	166
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 July 2017 by timescale: all-time 5, monthly 19, daily 436.

How Much Records Were Beaten By

348 broken records

Margins by which the 348 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.8. Ties are not counted.

Top 20 by Significance

27 July 2017

Top 20 records on 27 July 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 2017	Arhangelsk, RU	daily rain	52.7 mm (2.1 in)	20.8 mm (0.8 in)	118 years	71 of 100 (Major)
27 July 2017	Vittangi, SE	daily rain	33.6 mm (1.3 in)	23.5 mm (0.9 in)	63 years	63 of 100 (Major)
27 July 2017	Harrisonville, US	all-time rain	163.8 mm (6.4 in)	3.8 mm (0.15 in)	88 years	58 of 100 (Notable)
27 July 2017	Rocky Ford 2 SE, US	daily rain	75.4 mm (3.0 in)	38.1 mm (1.5 in)	55 years	56 of 100 (Notable)
27 July 2017	Hillsboro, US	daily rain	50.8 mm (2.0 in)	24.1 mm (0.9 in)	121 years	56 of 100 (Notable)
27 July 2017	Adel, US	monthly rain	42.4 mm (1.7 in)	17.5 mm (0.7 in)	27 years	55 of 100 (Notable)
27 July 2017	Lawrenceburg Filt Plt, US	daily rain	158.8 mm (6.3 in)	127.8 mm (5.0 in)	32 years	55 of 100 (Notable)
27 July 2017	Painted Desert Np, US	daily rain	38.4 mm (1.5 in)	24.4 mm (1.0 in)	35 years	54 of 100 (Notable)
27 July 2017	Vytegra, RU	daily rain	87.9 mm (3.5 in)	60.6 mm (2.4 in)	8 years	52 of 100 (Notable)
27 July 2017	Castle Rock, US	monthly rain	74.9 mm (2.9 in)	1.5 mm (0.06 in)	100 years	51 of 100 (Notable)
27 July 2017	Richfield, US	daily rain	38.1 mm (1.5 in)	15.2 mm (0.6 in)	102 years	50 of 100 (Notable)
27 July 2017	Mt Vernon, US	daily rain	30.5 mm (1.2 in)	10.2 mm (0.4 in)	121 years	46 of 100 (Notable)
27 July 2017	Atlantic 1 NE, US	daily rain	43.2 mm (1.7 in)	16.8 mm (0.7 in)	88 years	46 of 100 (Notable)
27 July 2017	Smithfield, US	monthly high min	26.7 C (80.1 F)	0.6 C (1.1 F)	81 years	46 of 100 (Notable)
27 July 2017	Louisiana, US	daily rain	79.0 mm (3.1 in)	41.4 mm (1.6 in)	36 years	45 of 100 (Notable)
27 July 2017	Custer, US	daily rain	65.5 mm (2.6 in)	22.3 mm (0.9 in)	40 years	45 of 100 (Notable)
27 July 2017	Edwardsville 2 W, US	daily rain	50.5 mm (2.0 in)	9.9 mm (0.39 in)	94 years	44 of 100 (Notable)
27 July 2017	Albemarle, US	daily low max	23.3 C (73.9 F)	2.3 C (4.1 F)	91 years	44 of 100 (Notable)
27 July 2017	Brodhead Wwtp, US	daily rain	48.3 mm (1.9 in)	6.6 mm (0.26 in)	115 years	44 of 100 (Notable)
27 July 2017	Hefei, CN	all-time high max	41.1 C (106.0 F)	0.1 C (0.2 F)	57 years	43 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

1805 to 2017

Records set or tied on this calendar date in each year from 1805 to 2017. 2017 had 460 records.

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

Records on 07-27 in each year
Year	Records
1805	1
1815	2
1820	1
1832	2
1847	1
1852	1
1856	2
1857	2
1862	1
1863	1
1867	2
1868	4
1870	1
1871	1
1872	2
1873	1
1875	1
1876	2
1877	2
1881	2
1882	1
1883	5
1884	2
1886	1
1887	3
1888	3
1889	4
1890	5
1891	1
1893	2
1894	1
1895	2
1896	1
1897	5
1898	2
1899	4
1900	5
1901	11
1902	4
1903	13
1904	13
1905	7
1906	16
1907	14
1908	17
1909	18
1910	7
1911	51
1912	89
1913	43
1914	44
1915	31
1916	143
1917	46
1918	103
1919	86
1920	67
1921	123
1922	95
1923	142
1924	71
1925	234
1926	131
1927	69
1928	222
1929	177
1930	786
1931	429
1932	172
1933	414
1934	471
1935	289
1936	971
1937	407
1938	287
1939	284
1940	632
1941	457
1942	258
1943	326
1944	398
1945	337
1946	680
1947	389
1948	485
1949	418
1950	797
1951	207
1952	476
1953	248
1954	294
1955	521
1956	325
1957	372
1958	491
1959	395
1960	385
1961	277
1962	1,009
1963	584
1964	335
1965	434
1966	594
1967	559
1968	391
1969	588
1970	379
1971	1,083
1972	790
1973	751
1974	403
1975	588
1976	426
1977	878
1978	583
1979	749
1980	760
1981	1,233
1982	584
1983	1,455
1984	1,613
1985	571
1986	836
1987	1,108
1988	936
1989	1,103
1990	846
1991	763
1992	791
1993	1,317
1994	1,851
1995	1,192
1996	950
1997	1,173
1998	1,363
1999	820
2000	1,019
2001	1,265
2002	816
2003	1,064
2004	1,552
2005	1,743
2006	1,321
2007	904
2008	784
2009	829
2010	1,330
2011	1,007
2012	823
2013	1,110
2014	591
2015	744
2016	564
2017	460
2018	737
2019	597
2020	842
2021	1,131
2022	855
2023	826
2024	646
2025	853
2026	1,170

Download the Data

Data for records on 2017-07-27: 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 20	322
20 to 40	22
40 to 60	2
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	1