Weather Records on 4 August 1951

680 weather records were set or tied worldwide on 4 August 1951. Highest significance: Bozeman Montana State UNIV, US.

Key Facts for 4 August 1951

On 4 August 1951, 680 weather records were set or tied at long-record stations worldwide.
160 were record highs and 204 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 665 daily.
Bozeman Montana State UNIV set a daily record precipitation of 25.1 mm (1.0 in) on 4 August 1951.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 440 records.

Record Map

680 stations

680 station records on 4 August 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bozeman Montana State UNIV	United States	Record daily precipitation	25.1 mm (1.0 in)	57 of 100 (Notable)
Logan Utah St UNIV	United States	Record daily precipitation	30.2 mm (1.2 in)	53 of 100 (Notable)
Sable Island	Canada	Record daily precipitation	107.2 mm (4.2 in)	51 of 100 (Notable)
Ft Collins	United States	Record daily precipitation	76.5 mm (3.0 in)	51 of 100 (Notable)
Cody	United States	Record daily precipitation	34.5 mm (1.4 in)	51 of 100 (Notable)
Mehgaon	India	Record daily precipitation	112.5 mm (4.4 in)	49 of 100 (Notable)
Ashton 1N	United States	Record daily precipitation	27.7 mm (1.1 in)	49 of 100 (Notable)
Hebgen Dam	United States	Record daily precipitation	45.5 mm (1.8 in)	48 of 100 (Notable)
Blackwater Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	45 of 100 (Notable)
Espanola	United States	Record daily precipitation	52.6 mm (2.1 in)	44 of 100 (Notable)
Riverdale	United States	Record daily precipitation	62.0 mm (2.4 in)	44 of 100 (Notable)
Machilpur	India	Record daily precipitation	107.2 mm (4.2 in)	43 of 100 (Notable)
Itchapuram	India	Record daily precipitation	86.4 mm (3.4 in)	41 of 100 (Notable)
Lake Yellowstone	United States	Record daily precipitation	28.4 mm (1.1 in)	39 of 100 (Notable)
Bhadrachalam	India	Record daily precipitation	87.1 mm (3.4 in)	37 of 100 (Notable)
Rimini 2 SSW	United States	Record daily precipitation	72.4 mm (2.9 in)	37 of 100 (Notable)
Bhandar	India	Record daily precipitation	116.8 mm (4.6 in)	35 of 100 (Notable)
Mummidivaram	India	Record daily precipitation	90.2 mm (3.6 in)	34 of 100 (Routine)
Escanaba	United States	Record low minimum temperature	5.6 C (42.1 F)	34 of 100 (Routine)
North Bay	Canada	Record low minimum temperature	1.7 C (35.1 F)	33 of 100 (Routine)
Havre Wb City	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Burindi	Australia	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Naracoopa	Australia	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Parry Sound	Canada	Record low minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Buckeye	United States	Record low maximum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Tyler Pounds Fld	United States	Record high minimum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Green Bay	United States	Record low minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Barrie	Canada	Record low minimum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Dillon U of Montana Western	United States	Record low maximum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Lima	United States	Record low maximum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Gunning Rural Supplies	Australia	Record daily precipitation	37.1 mm (1.5 in)	30 of 100 (Routine)
Sable Island	Canada	Record high maximum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Macharla	India	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Mariahu	India	Record daily precipitation	129.5 mm (5.1 in)	30 of 100 (Routine)
McGill	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Pelee Island	Canada	Record low minimum temperature	12.2 C (54.0 F)	29 of 100 (Routine)
College STN 6 SW	United States	Record high minimum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Brisbane Regional Office	Australia	Record high minimum temperature	15.4 C (59.7 F)	28 of 100 (Routine)
Morden	Canada	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Hamburg Bergedorf	Germany	Record daily precipitation	25.9 mm (1.0 in)	28 of 100 (Routine)
Chintalapudi	India	Record daily precipitation	48.3 mm (1.9 in)	28 of 100 (Routine)
Gila Bend 2SE	United States	Record low maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
Sugar City	United States	Record daily precipitation	26.2 mm (1.0 in)	28 of 100 (Routine)
Donaldsonville 4 SW	United States	Record low minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Virginia City	United States	Record low maximum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
Richmond	United States	Record daily precipitation	30.7 mm (1.2 in)	28 of 100 (Routine)
New Orleans Audubon	United States	Record high minimum temperature	27.2 C (81.0 F)	28 of 100 (Routine)
Innsbruck	Austria	Record high minimum temperature	19.8 C (67.6 F)	27 of 100 (Routine)
Kaithal	India	Record daily precipitation	82.0 mm (3.2 in)	27 of 100 (Routine)
Marengo	United States	Record low minimum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Elberta	United States	Record low maximum temperature	23.9 C (75.0 F)	27 of 100 (Routine)
Hiawatha	United States	Record daily precipitation	27.4 mm (1.1 in)	27 of 100 (Routine)
Kohala Mis 175.1	United States	Record low minimum temperature	18.3 C (64.9 F)	27 of 100 (Routine)
Granite Reef Dam	United States	Record low maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)
Lifton Pumping STN	United States	Record low maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Midvale	United States	Record low maximum temperature	24.4 C (75.9 F)	26 of 100 (Routine)
Houston Wb City	United States	Record high maximum temperature	38.9 C (102.0 F)	26 of 100 (Routine)
Orillia	Canada	Record low minimum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Eufaula	United States	Record high maximum temperature	38.3 C (100.9 F)	25 of 100 (Routine)
Cottbus	Germany	Record high minimum temperature	16.7 C (62.1 F)	24 of 100 (Routine)

Counts by Type and Timescale

680 records

Records set or tied on 4 August 1951 by type: Highest daily maximum 58, Lowest daily maximum 95, Highest daily minimum 102, Lowest daily minimum 109, Heaviest daily rainfall 316.

Records on 4 August 1951 by type
Record type	Records
Highest daily maximum	58
Lowest daily maximum	95
Highest daily minimum	102
Lowest daily minimum	109
Heaviest daily rainfall	316
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 1951 by timescale: all-time 1, monthly 14, daily 665.

How Much Records Were Beaten By

554 broken records

Margins by which the 554 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.4. Ties are not counted.

Top 20 by Significance

4 August 1951

Top 20 records on 4 August 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 1951	Bozeman Montana State UNIV, US	daily rain	25.1 mm (1.0 in)	15.4 mm (0.6 in)	56 years	57 of 100 (Notable)
4 August 1951	Logan Utah St UNIV, US	daily rain	30.2 mm (1.2 in)	20.5 mm (0.8 in)	51 years	53 of 100 (Notable)
4 August 1951	Sable Island, CA	daily rain	107.2 mm (4.2 in)	70.1 mm (2.8 in)	17 years	51 of 100 (Notable)
4 August 1951	Ft Collins, US	daily rain	76.5 mm (3.0 in)	59.2 mm (2.3 in)	20 years	51 of 100 (Notable)
4 August 1951	Cody, US	daily rain	34.5 mm (1.4 in)	29.2 mm (1.1 in)	28 years	51 of 100 (Notable)
4 August 1951	Mehgaon, IN	daily rain	112.5 mm (4.4 in)	74.4 mm (2.9 in)	33 years	49 of 100 (Notable)
4 August 1951	Ashton 1N, US	daily rain	27.7 mm (1.1 in)	22.1 mm (0.9 in)	14 years	49 of 100 (Notable)
4 August 1951	Hebgen Dam, US	monthly rain	45.5 mm (1.8 in)	13.5 mm (0.5 in)	20 years	48 of 100 (Notable)
4 August 1951	Blackwater Post Office, AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	55 years	45 of 100 (Notable)
4 August 1951	Espanola, US	monthly rain	52.6 mm (2.1 in)	15.8 mm (0.6 in)	25 years	44 of 100 (Notable)
4 August 1951	Riverdale, US	daily rain	62.0 mm (2.4 in)	55.9 mm (2.2 in)	4 years	44 of 100 (Notable)
4 August 1951	Machilpur, IN	daily rain	107.2 mm (4.2 in)	55.1 mm (2.2 in)	48 years	43 of 100 (Notable)
4 August 1951	Itchapuram, IN	daily rain	86.4 mm (3.4 in)	39.9 mm (1.6 in)	48 years	41 of 100 (Notable)
4 August 1951	Lake Yellowstone, US	daily rain	28.4 mm (1.1 in)	16.5 mm (0.6 in)	4 years	39 of 100 (Notable)
4 August 1951	Bhadrachalam, IN	daily rain	87.1 mm (3.4 in)	40.6 mm (1.6 in)	42 years	37 of 100 (Notable)
4 August 1951	Rimini 2 SSW, US	daily rain	72.4 mm (2.9 in)	37.1 mm (1.5 in)	36 years	37 of 100 (Notable)
4 August 1951	Bhandar, IN	daily rain	116.8 mm (4.6 in)	53.3 mm (2.1 in)	36 years	35 of 100 (Notable)
4 August 1951	Mummidivaram, IN	daily rain	90.2 mm (3.6 in)	62.0 mm (2.4 in)	4 years	34 of 100 (Routine)
4 August 1951	Escanaba, US	daily low min	5.6 C (42.1 F)	1.6 C (2.9 F)	76 years	34 of 100 (Routine)
4 August 1951	North Bay, CA	daily low min	1.7 C (35.1 F)	3.9 C (7.0 F)	62 years	33 of 100 (Routine)

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

1815 to 1951

Records set or tied on this calendar date in each year from 1815 to 1951. 1951 had 680 records.

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

Records on 08-04 in each year
Year	Records
1815	1
1827	1
1830	2
1833	1
1835	1
1843	1
1846	1
1847	1
1848	1
1857	1
1859	2
1860	2
1863	1
1865	3
1867	1
1868	1
1870	1
1871	1
1872	2
1874	3
1875	1
1878	3
1879	1
1881	2
1882	1
1883	1
1885	3
1886	1
1887	3
1888	4
1889	2
1890	1
1891	2
1893	2
1894	1
1895	3
1896	4
1897	3
1898	1
1899	7
1900	6
1902	4
1903	18
1904	11
1905	19
1906	14
1907	20
1908	31
1909	27
1910	17
1911	23
1912	51
1913	15
1914	33
1915	85
1916	97
1917	29
1918	95
1919	34
1920	79
1921	67
1922	68
1923	146
1924	132
1925	77
1926	334
1927	136
1928	352
1929	224
1930	698
1931	371
1932	258
1933	347
1934	521
1935	367
1936	719
1937	258
1938	489
1939	433
1940	236
1941	383
1942	303
1943	468
1944	662
1945	355
1946	265
1947	845
1948	558
1949	421
1950	666
1951	680
1952	465
1953	1,017
1954	426
1955	624
1956	437
1957	343
1958	533
1959	303
1960	331
1961	745
1962	470
1963	438
1964	885
1965	409
1966	552
1967	428
1968	280
1969	638
1970	415
1971	813
1972	773
1973	748
1974	1,040
1975	772
1976	801
1977	599
1978	1,051
1979	510
1980	998
1981	636
1982	703
1983	920
1984	722
1985	634
1986	905
1987	892
1988	1,204
1989	738
1990	1,013
1991	769
1992	754
1993	1,046
1994	1,265
1995	1,117
1996	1,143
1997	891
1998	1,423
1999	762
2000	840
2001	1,087
2002	928
2003	1,309
2004	968
2005	1,246
2006	1,131
2007	685
2008	883
2009	681
2010	1,665
2011	1,536
2012	738
2013	452
2014	980
2015	505
2016	732
2017	1,134
2018	760
2019	499
2020	778
2021	691
2022	1,185
2023	1,150
2024	809
2025	840
2026	1,044

Download the Data

Data for records on 1951-08-04: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	491
10 to 20	44
20 to 30	8
30 to 40	3
40 to 50	1
50 to 60	4
60 to 70	1
70 to 80	2