Weather Records on 31 July 2003

1,157 weather records were set or tied worldwide on 31 July 2003. Highest significance: Daingerfield 9 S, US.

Key Facts for 31 July 2003

On 31 July 2003, 1,157 weather records were set or tied at long-record stations worldwide.
745 were record highs and 222 were record lows, counting maximum and minimum temperature.
By timescale, 18 were all-time records, 22 monthly and 1,117 daily.
Daingerfield 9 S set a daily record precipitation of 83.3 mm (3.3 in) on 31 July 2003.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 467 records.

Record Map

1,157 stations

1,157 station records on 31 July 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Daingerfield 9 S	United States	Record daily precipitation	83.3 mm (3.3 in)	58 of 100 (Notable)
Van Buren 2	United States	Record daily precipitation	62.5 mm (2.5 in)	52 of 100 (Notable)
Anapa	Russia	Record daily precipitation	74.2 mm (2.9 in)	51 of 100 (Notable)
Kharkiv	Ukraine	Record daily precipitation	42.6 mm (1.7 in)	51 of 100 (Notable)
New London	United States	Record daily precipitation	73.7 mm (2.9 in)	51 of 100 (Notable)
El Obeid	Sudan	Record daily precipitation	136.1 mm (5.4 in)	50 of 100 (Notable)
Rocky Mt	United States	Record low maximum temperature	20.6 C (69.1 F)	49 of 100 (Notable)
Presa Colorines (Cfe)	Mexico	Record low minimum temperature	10.6 C (51.1 F)	48 of 100 (Notable)
Huntington Lake	United States	Record high minimum temperature	18.9 C (66.0 F)	48 of 100 (Notable)
Gaffney 6 E	United States	Record daily precipitation	49.3 mm (1.9 in)	48 of 100 (Notable)
Ocosingo	Mexico	Record daily precipitation	92.5 mm (3.6 in)	47 of 100 (Notable)
Appleton	United States	Record daily precipitation	97.5 mm (3.8 in)	46 of 100 (Notable)
St. Petersburg	Russia	Record high minimum temperature	21.4 C (70.5 F)	45 of 100 (Notable)
Middleburg	United States	Record low maximum temperature	28.9 C (84.0 F)	45 of 100 (Notable)
Morgantown Muni AP	United States	Record daily precipitation	44.2 mm (1.7 in)	45 of 100 (Notable)
Parnu	Estonia	Record high minimum temperature	20.8 C (69.4 F)	43 of 100 (Notable)
Amealco	Mexico	Record daily precipitation	58.9 mm (2.3 in)	43 of 100 (Notable)
St. Petersburg	Russia	Record high maximum temperature	31.2 C (88.2 F)	43 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	112.0 mm (4.4 in)	43 of 100 (Notable)
Buffalo Bill Dam	United States	Record high minimum temperature	22.2 C (72.0 F)	43 of 100 (Notable)
Zheleznodorozhnyj	Belarus	Record daily precipitation	39.2 mm (1.5 in)	42 of 100 (Notable)
Falls City 2 SSW	United States	Record high maximum temperature	36.7 C (98.1 F)	42 of 100 (Notable)
Seinajoki Pelmaa	Finland	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Buzau	Romania	Record daily precipitation	40.1 mm (1.6 in)	41 of 100 (Notable)
Baxter	United States	Record daily precipitation	57.7 mm (2.3 in)	41 of 100 (Notable)
Blackleaf	United States	Record high maximum temperature	36.1 C (97.0 F)	41 of 100 (Notable)
Ashland	United States	Record high maximum temperature	39.4 C (102.9 F)	41 of 100 (Notable)
San Diego Curupatzeo	Mexico	Record low minimum temperature	11.7 C (53.1 F)	40 of 100 (Notable)
Brunswick	United States	Record low minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Ft Benton	United States	Record high minimum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Sunnyside	United States	Record high maximum temperature	41.1 C (106.0 F)	40 of 100 (Notable)
Guadalajara (Dge)	Mexico	Record daily precipitation	82.8 mm (3.3 in)	39 of 100 (Notable)
Palo Verde	Mexico	Record daily precipitation	59.9 mm (2.4 in)	39 of 100 (Notable)
Pogegevskaya	Ukraine	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Salem	United States	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Pelion 0.8 NW	United States	Record daily precipitation	88.1 mm (3.5 in)	39 of 100 (Notable)
Kadoka	United States	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
El Tintero	Mexico	Record high minimum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Los Razos	Mexico	Record daily precipitation	55.9 mm (2.2 in)	38 of 100 (Notable)
Aibonito 1 S	Puerto Rico [United States]	Record low minimum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Holmogadd A	Sweden	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Riddle	United States	Record high maximum temperature	38.9 C (102.0 F)	38 of 100 (Notable)
Sewanee	United States	Record daily precipitation	43.9 mm (1.7 in)	38 of 100 (Notable)
Vilsandi	Estonia	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Lemland Nyhamn	Finland	Record high minimum temperature	21.5 C (70.7 F)	36 of 100 (Notable)
Villa Purificacion (Dge)	Mexico	Record low minimum temperature	15.6 C (60.1 F)	36 of 100 (Notable)
San Jose de Raices	Mexico	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Zamboanga	Philippines	Record daily precipitation	76.7 mm (3.0 in)	36 of 100 (Notable)
Campo	United States	Record daily precipitation	48.5 mm (1.9 in)	36 of 100 (Notable)
Glenns Ferry	United States	Record high maximum temperature	43.3 C (109.9 F)	36 of 100 (Notable)
Floyd 2 NE	United States	Record low maximum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Ascencion (Smn)	Mexico	Record low minimum temperature	7.8 C (46.0 F)	35 of 100 (Notable)
Gran Canal KM 27+250	Mexico	Record daily precipitation	61.5 mm (2.4 in)	35 of 100 (Notable)
Blasillo	Mexico	Record daily precipitation	108.0 mm (4.3 in)	35 of 100 (Notable)
Ytre Solund	Norway	Record daily precipitation	30.3 mm (1.2 in)	35 of 100 (Notable)
Lisboa Geofisica	Portugal	Record high minimum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Marion	United States	Record daily precipitation	70.9 mm (2.8 in)	35 of 100 (Notable)
Johnston 4 SW	United States	Record daily precipitation	48.3 mm (1.9 in)	35 of 100 (Notable)
Harleton	United States	Record daily precipitation	63.5 mm (2.5 in)	35 of 100 (Notable)

Counts by Type and Timescale

1,157 records

Records set or tied on 31 July 2003 by type: Highest daily maximum 359, Lowest daily maximum 130, Highest daily minimum 386, Lowest daily minimum 92, Heaviest daily rainfall 190.

Records on 31 July 2003 by type
Record type	Records
Highest daily maximum	359
Lowest daily maximum	130
Highest daily minimum	386
Lowest daily minimum	92
Heaviest daily rainfall	190
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 2003 by timescale: all-time 18, monthly 22, daily 1,117.

How Much Records Were Beaten By

886 broken records

Margins by which the 886 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 69.3. Ties are not counted.

Top 20 by Significance

31 July 2003

Top 20 records on 31 July 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2003	Daingerfield 9 S, US	daily rain	83.3 mm (3.3 in)	68.6 mm (2.7 in)	50 years	58 of 100 (Notable)
31 July 2003	Van Buren 2, US	daily rain	62.5 mm (2.5 in)	52.6 mm (2.1 in)	28 years	52 of 100 (Notable)
31 July 2003	Anapa, RU	daily rain	74.2 mm (2.9 in)	69.3 mm (2.7 in)	24 years	51 of 100 (Notable)
31 July 2003	Kharkiv, UA	daily rain	42.6 mm (1.7 in)	29.0 mm (1.1 in)	38 years	51 of 100 (Notable)
31 July 2003	New London, US	daily rain	73.7 mm (2.9 in)	35.9 mm (1.4 in)	41 years	51 of 100 (Notable)
31 July 2003	El Obeid, SD	all-time rain	136.1 mm (5.4 in)	21.1 mm (0.8 in)	39 years	50 of 100 (Notable)
31 July 2003	Rocky Mt, US	daily low max	20.6 C (69.1 F)	3.3 C (5.9 F)	100 years	49 of 100 (Notable)
31 July 2003	Presa Colorines (Cfe), MX	daily low min	10.6 C (51.1 F)	2.7 C (4.9 F)	53 years	48 of 100 (Notable)
31 July 2003	Huntington Lake, US	daily high min	18.9 C (66.0 F)	4.5 C (8.1 F)	80 years	48 of 100 (Notable)
31 July 2003	Gaffney 6 E, US	daily rain	49.3 mm (1.9 in)	13.0 mm (0.5 in)	103 years	48 of 100 (Notable)
31 July 2003	Ocosingo, MX	daily rain	92.5 mm (3.6 in)	59.7 mm (2.4 in)	24 years	47 of 100 (Notable)
31 July 2003	Appleton, US	monthly rain	97.5 mm (3.8 in)	13.9 mm (0.5 in)	51 years	46 of 100 (Notable)
31 July 2003	St. Petersburg, RU	daily high min	21.4 C (70.5 F)	1.6 C (2.9 F)	101 years	45 of 100 (Notable)
31 July 2003	Middleburg, US	daily low max	28.9 C (84.0 F)	2.2 C (4.0 F)	84 years	45 of 100 (Notable)
31 July 2003	Morgantown Muni AP, US	daily rain	44.2 mm (1.7 in)	6.1 mm (0.24 in)	110 years	45 of 100 (Notable)
31 July 2003	Parnu, EE	daily high min	20.8 C (69.4 F)	0.9 C (1.6 F)	120 years	43 of 100 (Notable)
31 July 2003	Amealco, MX	daily rain	58.9 mm (2.3 in)	31.0 mm (1.2 in)	24 years	43 of 100 (Notable)
31 July 2003	St. Petersburg, RU	daily high max	31.2 C (88.2 F)	1.2 C (2.2 F)	109 years	43 of 100 (Notable)
31 July 2003	Sheboygan, US	monthly rain	112.0 mm (4.4 in)	21.3 mm (0.8 in)	18 years	43 of 100 (Notable)
31 July 2003	Buffalo Bill Dam, US	daily high min	22.2 C (72.0 F)	3.3 C (5.9 F)	73 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

1804 to 2003

Records set or tied on this calendar date in each year from 1804 to 2003. 2003 had 1,157 records.

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

Records on 07-31 in each year
Year	Records
1804	1
1815	1
1816	1
1828	1
1834	1
1839	1
1840	1
1841	2
1851	1
1858	2
1860	4
1863	1
1866	1
1873	2
1876	1
1879	1
1884	1
1885	1
1886	1
1887	5
1889	2
1890	2
1891	1
1892	1
1893	3
1894	2
1896	2
1897	2
1898	5
1900	1
1901	3
1902	4
1903	16
1904	12
1905	10
1906	14
1907	17
1908	22
1909	15
1910	21
1911	29
1912	14
1913	31
1914	28
1915	71
1916	63
1917	126
1918	39
1919	27
1920	168
1921	112
1922	24
1923	236
1924	97
1925	349
1926	226
1927	161
1928	145
1929	134
1930	143
1931	441
1932	314
1933	504
1934	449
1935	418
1936	548
1937	297
1938	417
1939	357
1940	415
1941	323
1942	342
1943	342
1944	312
1945	499
1946	426
1947	341
1948	341
1949	406
1950	511
1951	364
1952	472
1953	414
1954	459
1955	813
1956	574
1957	268
1958	374
1959	424
1960	622
1961	504
1962	348
1963	294
1964	637
1965	858
1966	606
1967	326
1968	637
1969	440
1970	576
1971	1,850
1972	667
1973	583
1974	363
1975	1,386
1976	530
1977	543
1978	754
1979	501
1980	1,047
1981	672
1982	767
1983	901
1984	777
1985	1,065
1986	1,021
1987	934
1988	940
1989	1,753
1990	911
1991	647
1992	1,169
1993	1,031
1994	1,207
1995	1,223
1996	1,084
1997	984
1998	1,195
1999	1,643
2000	1,001
2001	1,414
2002	1,080
2003	1,157
2004	779
2005	742
2006	1,405
2007	1,023
2008	911
2009	1,156
2010	1,485
2011	1,040
2012	712
2013	469
2014	1,000
2015	948
2016	501
2017	485
2018	1,135
2019	551
2020	1,034
2021	1,020
2022	861
2023	671
2024	748
2025	836
2026	754

Download the Data

Data for records on 2003-07-31: 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	817
10 to 20	31
20 to 30	20
30 to 40	12
40 to 50	2
50 to 60	2
60 to 70	2