Weather Records on 31 July 2001

1,414 weather records were set or tied worldwide on 31 July 2001. Highest significance: Roseau, US.

Key Facts for 31 July 2001

On 31 July 2001, 1,414 weather records were set or tied at long-record stations worldwide.
678 were record highs and 322 were record lows, counting maximum and minimum temperature.
By timescale, 18 were all-time records, 32 monthly and 1,364 daily.
Roseau set a daily record precipitation of 69.3 mm (2.7 in) on 31 July 2001.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 465 records.

Record Map

1,414 stations

1,414 station records on 31 July 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Roseau	United States	Record daily precipitation	69.3 mm (2.7 in)	80 of 100 (Exceptional)
Millston	Australia	Record daily precipitation	30.0 mm (1.2 in)	60 of 100 (Major)
Live Oak	United States	Record daily precipitation	141.0 mm (5.6 in)	58 of 100 (Notable)
Drummond Aviation	United States	Record daily precipitation	30.2 mm (1.2 in)	58 of 100 (Notable)
Grand Forks Intl AP	United States	Record daily precipitation	49.5 mm (1.9 in)	57 of 100 (Notable)
Burgos (Dge)	Mexico	Record daily precipitation	61.0 mm (2.4 in)	56 of 100 (Notable)
Tromso	Norway	Record daily precipitation	36.1 mm (1.4 in)	56 of 100 (Notable)
Almeria/Aeropuerto	Spain	Record high minimum temperature	33.2 C (91.8 F)	56 of 100 (Notable)
Big Falls	United States	Record daily precipitation	85.1 mm (3.4 in)	56 of 100 (Notable)
Sharon	United States	Record daily precipitation	59.7 mm (2.4 in)	55 of 100 (Notable)
Fort Hill	Australia	Record daily precipitation	28.4 mm (1.1 in)	54 of 100 (Notable)
Koonadgin	Australia	Record daily precipitation	29.3 mm (1.2 in)	53 of 100 (Notable)
Storsteinnes I Balsfjord	Norway	Record daily precipitation	42.0 mm (1.7 in)	53 of 100 (Notable)
Grand Marais	United States	Record daily precipitation	58.7 mm (2.3 in)	53 of 100 (Notable)
Lindbergh Lake	United States	Record daily precipitation	25.7 mm (1.0 in)	53 of 100 (Notable)
Grand Forks UNIV (NWS)	United States	Record daily precipitation	53.6 mm (2.1 in)	53 of 100 (Notable)
Myrup	Australia	Record daily precipitation	27.2 mm (1.1 in)	52 of 100 (Notable)
Ethridge	United States	Record daily precipitation	34.3 mm (1.4 in)	52 of 100 (Notable)
Cascades Creek Station	Australia	Record daily precipitation	29.8 mm (1.2 in)	51 of 100 (Notable)
Saetermoen II	Norway	Record daily precipitation	55.1 mm (2.2 in)	51 of 100 (Notable)
Tromso - Langnes	Norway	Record daily precipitation	42.3 mm (1.7 in)	51 of 100 (Notable)
Katta Barega	Australia	Record daily precipitation	28.6 mm (1.1 in)	50 of 100 (Notable)
Tura	Russia	Record daily precipitation	31.4 mm (1.2 in)	49 of 100 (Notable)
Goldbutte 7 N	United States	Record daily precipitation	54.9 mm (2.2 in)	49 of 100 (Notable)
Sweetgrass	United States	Record daily precipitation	38.9 mm (1.5 in)	47 of 100 (Notable)
Trotters 3 SSE	United States	Record daily precipitation	36.8 mm (1.4 in)	47 of 100 (Notable)
Daytona Beach Intl AP	United States	Record daily precipitation	86.9 mm (3.4 in)	47 of 100 (Notable)
Kamenskoe	Russia	Record high maximum temperature	39.3 C (102.7 F)	46 of 100 (Notable)
Lamar	United States	Record high minimum temperature	25.6 C (78.1 F)	46 of 100 (Notable)
Leroy 5 WSW	United States	Record high minimum temperature	21.1 C (70.0 F)	46 of 100 (Notable)
Agartala	India	Record daily precipitation	110.0 mm (4.3 in)	45 of 100 (Notable)
Crescent City	United States	Record low maximum temperature	26.1 C (79.0 F)	45 of 100 (Notable)
Scaddan West	Australia	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Palmerville	Australia	Record low minimum temperature	2.0 C (35.6 F)	44 of 100 (Notable)
Amvrosiivka	Ukraine	Record daily precipitation	51.0 mm (2.0 in)	44 of 100 (Notable)
Nabawa	Australia	Record daily precipitation	28.6 mm (1.1 in)	43 of 100 (Notable)
Federal Pt	United States	Record low maximum temperature	27.2 C (81.0 F)	43 of 100 (Notable)
Nevada Wtp	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Darby	United States	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Mimbres 4NNW	United States	Record low minimum temperature	1.7 C (35.1 F)	43 of 100 (Notable)
San Ildelfonso Villa Alta	Mexico	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Bjoernoeya	Norway	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Ganado	United States	Record low minimum temperature	4.4 C (39.9 F)	42 of 100 (Notable)
Kentwood	United States	Record daily precipitation	109.2 mm (4.3 in)	42 of 100 (Notable)
Anaconda	United States	Record low maximum temperature	18.3 C (64.9 F)	42 of 100 (Notable)
Bigfork 13 S	United States	Record daily precipitation	31.2 mm (1.2 in)	42 of 100 (Notable)
Missoula 2 NE	United States	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Larimore 4SW	United States	Record daily precipitation	32.3 mm (1.3 in)	42 of 100 (Notable)
Alexandria	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Terry	United States	Record daily precipitation	32.0 mm (1.3 in)	41 of 100 (Notable)
Hayward Rs	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Bedford Harbour	Australia	Record daily precipitation	28.2 mm (1.1 in)	40 of 100 (Notable)
Asuncion Nochixtlan	Mexico	Record high maximum temperature	35.0 C (95.0 F)	40 of 100 (Notable)
Imperial	United States	Record low minimum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Manistique Wwtp	United States	Record high minimum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Yathroo	Australia	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Khorog	Tajikistan	Record low minimum temperature	8.6 C (47.5 F)	39 of 100 (Notable)
Akron 4 E	United States	Record high minimum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Mancos 1SW	United States	Record daily precipitation	30.7 mm (1.2 in)	39 of 100 (Notable)
Rocky Ford 2 SE	United States	Record high minimum temperature	22.8 C (73.0 F)	39 of 100 (Notable)

Counts by Type and Timescale

1,414 records

Records set or tied on 31 July 2001 by type: Highest daily maximum 203, Lowest daily maximum 188, Highest daily minimum 475, Lowest daily minimum 134, Heaviest daily rainfall 414.

Records on 31 July 2001 by type
Record type	Records
Highest daily maximum	203
Lowest daily maximum	188
Highest daily minimum	475
Lowest daily minimum	134
Heaviest daily rainfall	414
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 2001 by timescale: all-time 18, monthly 32, daily 1,364.

How Much Records Were Beaten By

1,077 broken records

Margins by which the 1,077 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 88.4. Ties are not counted.

Top 20 by Significance

31 July 2001

Top 20 records on 31 July 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2001	Roseau, US	daily rain	69.3 mm (2.7 in)	45.7 mm (1.8 in)	101 years	80 of 100 (Exceptional)
31 July 2001	Millston, AU	daily rain	30.0 mm (1.2 in)	17.8 mm (0.7 in)	56 years	60 of 100 (Major)
31 July 2001	Live Oak, US	daily rain	141.0 mm (5.6 in)	88.4 mm (3.5 in)	27 years	58 of 100 (Notable)
31 July 2001	Drummond Aviation, US	daily rain	30.2 mm (1.2 in)	21.3 mm (0.8 in)	36 years	58 of 100 (Notable)
31 July 2001	Grand Forks Intl AP, US	daily rain	49.5 mm (1.9 in)	42.1 mm (1.7 in)	52 years	57 of 100 (Notable)
31 July 2001	Burgos (Dge), MX	daily rain	61.0 mm (2.4 in)	61.0 mm (2.4 in)	40 years	56 of 100 (Notable)
31 July 2001	Tromso, NO	daily rain	36.1 mm (1.4 in)	20.1 mm (0.8 in)	28 years	56 of 100 (Notable)
31 July 2001	Almeria/Aeropuerto, ES	all-time high min	33.2 C (91.8 F)	5.6 C (10.1 F)	20 years	56 of 100 (Notable)
31 July 2001	Big Falls, US	daily rain	85.1 mm (3.4 in)	45.5 mm (1.8 in)	32 years	56 of 100 (Notable)
31 July 2001	Sharon, US	daily rain	59.7 mm (2.4 in)	31.3 mm (1.2 in)	70 years	55 of 100 (Notable)
31 July 2001	Fort Hill, AU	daily rain	28.4 mm (1.1 in)	14.4 mm (0.6 in)	59 years	54 of 100 (Notable)
31 July 2001	Koonadgin, AU	daily rain	29.3 mm (1.2 in)	15.6 mm (0.6 in)	56 years	53 of 100 (Notable)
31 July 2001	Storsteinnes I Balsfjord, NO	monthly rain	42.0 mm (1.7 in)	14.0 mm (0.6 in)	31 years	53 of 100 (Notable)
31 July 2001	Grand Marais, US	daily rain	58.7 mm (2.3 in)	33.3 mm (1.3 in)	36 years	53 of 100 (Notable)
31 July 2001	Lindbergh Lake, US	daily rain	25.7 mm (1.0 in)	19.6 mm (0.8 in)	36 years	53 of 100 (Notable)
31 July 2001	Grand Forks UNIV (NWS), US	daily rain	53.6 mm (2.1 in)	15.5 mm (0.6 in)	101 years	53 of 100 (Notable)
31 July 2001	Myrup, AU	daily rain	27.2 mm (1.1 in)	9.4 mm (0.37 in)	88 years	52 of 100 (Notable)
31 July 2001	Ethridge, US	daily rain	34.3 mm (1.4 in)	28.7 mm (1.1 in)	26 years	52 of 100 (Notable)
31 July 2001	Cascades Creek Station, AU	daily rain	29.8 mm (1.2 in)	21.7 mm (0.9 in)	28 years	51 of 100 (Notable)
31 July 2001	Saetermoen II, NO	monthly rain	55.1 mm (2.2 in)	18.8 mm (0.7 in)	2 years	51 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 2001

Records set or tied on this calendar date in each year from 1804 to 2001. 2001 had 1,414 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 2001-07-31: 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 20	1,045
20 to 40	23
40 to 60	7
60 to 80	1
80 to 100	1