Weather Records on 31 July 2021

1,020 weather records were set or tied worldwide on 31 July 2021. Highest significance: Oldeholtpade, NL.

Key Facts for 31 July 2021

On 31 July 2021, 1,020 weather records were set or tied at long-record stations worldwide.
657 were record highs and 149 were record lows, counting maximum and minimum temperature.
By timescale, 24 were all-time records, 71 monthly and 925 daily.
Oldeholtpade set an all-time record daily precipitation of 94.5 mm (3.7 in) on 31 July 2021.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 468 records.

Record Map

1,020 stations

1,020 station records on 31 July 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 July 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Oldeholtpade	Netherlands	Record daily precipitation	94.5 mm (3.7 in)	72 of 100 (Major)
Mtn Home AFB	United States	Record daily precipitation	32.0 mm (1.3 in)	72 of 100 (Major)
Gold Center	United States	Record daily precipitation	35.6 mm (1.4 in)	65 of 100 (Major)
Trinidad	United States	Record daily precipitation	78.7 mm (3.1 in)	64 of 100 (Major)
Idaho Falls FAA AP	United States	Record daily precipitation	32.5 mm (1.3 in)	63 of 100 (Major)
Boise Lucky Peak Dam	United States	Record daily precipitation	42.2 mm (1.7 in)	62 of 100 (Major)
Strawberry Divide	United States	Record daily precipitation	55.9 mm (2.2 in)	62 of 100 (Major)
Knoxville	United States	Record daily precipitation	73.4 mm (2.9 in)	61 of 100 (Major)
Nashville Intl AP	United States	Record daily precipitation	79.5 mm (3.1 in)	57 of 100 (Notable)
Pueblo Mem AP	United States	Record daily precipitation	70.1 mm (2.8 in)	56 of 100 (Notable)
Eagle Nest	United States	Record daily precipitation	82.8 mm (3.3 in)	55 of 100 (Notable)
Soldier R.S.	United States	Record daily precipitation	68.6 mm (2.7 in)	55 of 100 (Notable)
Massena	United States	Record daily precipitation	77.2 mm (3.0 in)	54 of 100 (Notable)
Trinity Mtn.	United States	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Embrun	France	Record daily precipitation	63.3 mm (2.5 in)	53 of 100 (Notable)
Long Flat	United States	Record daily precipitation	78.7 mm (3.1 in)	53 of 100 (Notable)
Oakland	United States	Record daily precipitation	64.8 mm (2.6 in)	52 of 100 (Notable)
Estacada 2 SE	United States	Record high minimum temperature	20.0 C (68.0 F)	51 of 100 (Notable)
Grasas_D	Sweden	Record daily precipitation	54.8 mm (2.2 in)	50 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high minimum temperature	20.6 C (69.1 F)	50 of 100 (Notable)
Cochetopa Creek	United States	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Beaconsfield 3N	United States	Record daily precipitation	66.5 mm (2.6 in)	48 of 100 (Notable)
Bedford 3 SE	United States	Record daily precipitation	37.3 mm (1.5 in)	48 of 100 (Notable)
Lakin	United States	Record daily precipitation	34.3 mm (1.4 in)	47 of 100 (Notable)
Dutch Harbor	United States	Record high minimum temperature	15.0 C (59.0 F)	47 of 100 (Notable)
Swede Peak	United States	Record daily precipitation	33.0 mm (1.3 in)	47 of 100 (Notable)
Crested Butte	United States	Record daily precipitation	28.4 mm (1.1 in)	46 of 100 (Notable)
Sanborn	United States	Record daily precipitation	47.0 mm (1.9 in)	46 of 100 (Notable)
Yemassee 1 N	United States	Record high minimum temperature	25.6 C (78.1 F)	46 of 100 (Notable)
Somsen Ranch	United States	Record daily precipitation	27.9 mm (1.1 in)	46 of 100 (Notable)
Chariton 1 E	United States	Record daily precipitation	65.8 mm (2.6 in)	45 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	65.0 mm (2.6 in)	45 of 100 (Notable)
Halfway	United States	Record high minimum temperature	22.2 C (72.0 F)	45 of 100 (Notable)
Hoosier Pass	United States	Record daily precipitation	30.5 mm (1.2 in)	45 of 100 (Notable)
Beito	Norway	Record daily precipitation	43.3 mm (1.7 in)	44 of 100 (Notable)
Sandviken	Sweden	Record daily precipitation	37.2 mm (1.5 in)	44 of 100 (Notable)
Decatur Wtp	United States	Record low maximum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Centerville	United States	Record daily precipitation	52.6 mm (2.1 in)	44 of 100 (Notable)
Ft Madison	United States	Record low maximum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	36.3 mm (1.4 in)	44 of 100 (Notable)
Alexandria	United States	Record low maximum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Oxford Spring	United States	Record daily precipitation	45.7 mm (1.8 in)	44 of 100 (Notable)
Vladivostok	Russia	Record high minimum temperature	24.0 C (75.2 F)	43 of 100 (Notable)
Selma	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Emmett 2 E	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Columbia	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Auburn	United States	Record low maximum temperature	19.4 C (66.9 F)	43 of 100 (Notable)
Charleville Aero	Australia	Record high maximum temperature	30.7 C (87.3 F)	42 of 100 (Notable)
Leaburg 1 SW	United States	Record high minimum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Cottonwood 2 E	United States	Record low maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Kellogg	United States	Record high maximum temperature	40.6 C (105.1 F)	41 of 100 (Notable)
McCall	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Blaine	United States	Record high maximum temperature	32.2 C (90.0 F)	41 of 100 (Notable)
Bratoljubovka	Russia	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Rosalia	United States	Record high maximum temperature	41.1 C (106.0 F)	40 of 100 (Notable)
Evanston 1 E	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Dillon 1 E	United States	Record daily precipitation	28.7 mm (1.1 in)	39 of 100 (Notable)
Memphis	United States	Record daily precipitation	42.2 mm (1.7 in)	39 of 100 (Notable)
Dunkirk 19NNE	United States	Record high minimum temperature	18.3 C (64.9 F)	39 of 100 (Notable)
Mt Adams Rs	United States	Record high minimum temperature	21.7 C (71.1 F)	39 of 100 (Notable)

Counts by Type and Timescale

1,020 records

Records set or tied on 31 July 2021 by type: Highest daily maximum 209, Lowest daily maximum 94, Highest daily minimum 448, Lowest daily minimum 55, Heaviest daily rainfall 214.

Records on 31 July 2021 by type
Record type	Records
Highest daily maximum	209
Lowest daily maximum	94
Highest daily minimum	448
Lowest daily minimum	55
Heaviest daily rainfall	214
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 2021 by timescale: all-time 24, monthly 71, daily 925.

How Much Records Were Beaten By

784 broken records

Margins by which the 784 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.5. Ties are not counted.

Top 20 by Significance

31 July 2021

Top 20 records on 31 July 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2021	Oldeholtpade, NL	all-time rain	94.5 mm (3.7 in)	18.3 mm (0.7 in)	60 years	72 of 100 (Major)
31 July 2021	Mtn Home AFB, US	monthly rain	32.0 mm (1.3 in)	20.1 mm (0.8 in)	51 years	72 of 100 (Major)
31 July 2021	Gold Center, US	monthly rain	35.6 mm (1.4 in)	15.3 mm (0.6 in)	39 years	65 of 100 (Major)
31 July 2021	Trinidad, US	monthly rain	78.7 mm (3.1 in)	12.4 mm (0.5 in)	99 years	64 of 100 (Major)
31 July 2021	Idaho Falls FAA AP, US	daily rain	32.5 mm (1.3 in)	23.6 mm (0.9 in)	55 years	63 of 100 (Major)
31 July 2021	Boise Lucky Peak Dam, US	monthly rain	42.2 mm (1.7 in)	14.0 mm (0.6 in)	60 years	62 of 100 (Major)
31 July 2021	Strawberry Divide, US	monthly rain	55.9 mm (2.2 in)	22.9 mm (0.9 in)	29 years	62 of 100 (Major)
31 July 2021	Knoxville, US	daily rain	73.4 mm (2.9 in)	34.5 mm (1.4 in)	102 years	61 of 100 (Major)
31 July 2021	Nashville Intl AP, US	daily rain	79.5 mm (3.1 in)	44.4 mm (1.7 in)	51 years	57 of 100 (Notable)
31 July 2021	Pueblo Mem AP, US	monthly rain	70.1 mm (2.8 in)	20.3 mm (0.8 in)	44 years	56 of 100 (Notable)
31 July 2021	Eagle Nest, US	monthly rain	82.8 mm (3.3 in)	20.1 mm (0.8 in)	10 years	55 of 100 (Notable)
31 July 2021	Soldier R.S., US	monthly rain	68.6 mm (2.7 in)	43.2 mm (1.7 in)	7 years	55 of 100 (Notable)
31 July 2021	Massena, US	daily rain	77.2 mm (3.0 in)	67.5 mm (2.7 in)	36 years	54 of 100 (Notable)
31 July 2021	Trinity Mtn., US	daily rain	50.8 mm (2.0 in)	45.7 mm (1.8 in)	34 years	54 of 100 (Notable)
31 July 2021	Embrun, FR	daily rain	63.3 mm (2.5 in)	29.5 mm (1.2 in)	31 years	53 of 100 (Notable)
31 July 2021	Long Flat, US	monthly rain	78.7 mm (3.1 in)	30.4 mm (1.2 in)	8 years	53 of 100 (Notable)
31 July 2021	Oakland, US	daily rain	64.8 mm (2.6 in)	39.7 mm (1.6 in)	52 years	52 of 100 (Notable)
31 July 2021	Estacada 2 SE, US	monthly high min	20.0 C (68.0 F)	1.1 C (2.0 F)	93 years	51 of 100 (Notable)
31 July 2021	Grasas_D, SE	daily rain	54.8 mm (2.2 in)	31.8 mm (1.3 in)	27 years	50 of 100 (Notable)
31 July 2021	Salem AP (McNary Field), US	daily high min	20.6 C (69.1 F)	2.8 C (5.0 F)	111 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

1804 to 2021

Records set or tied on this calendar date in each year from 1804 to 2021. 2021 had 1,020 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 2021-07-31: 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 2026-10-17 (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 10	713
10 to 20	46
20 to 30	15
30 to 40	5
40 to 50	3
50 to 60	1
60 to 70	1