Weather Records on 17 August 1928

131 weather records were set or tied worldwide on 17 August 1928. Highest significance: Belvidere, US.

Key Facts for 17 August 1928

On 17 August 1928, 131 weather records were set or tied at long-record stations worldwide.
54 were record highs and 18 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 1 monthly and 129 daily.
Belvidere set a daily record precipitation of 103.6 mm (4.1 in) on 17 August 1928.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 476 records.

Record Map

131 stations

131 station records on 17 August 1928 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1928: highest significance records shown on the map
Station	Country	Type	Value	Significance
Belvidere	United States	Record daily precipitation	103.6 mm (4.1 in)	45 of 100 (Notable)
Charlotteburg Rsvr	United States	Record daily precipitation	59.7 mm (2.4 in)	45 of 100 (Notable)
Coatesville 1 SW	United States	Record daily precipitation	134.1 mm (5.3 in)	40 of 100 (Notable)
Wilmington City Hall	United States	Record daily precipitation	77.7 mm (3.1 in)	39 of 100 (Notable)
Philadelphia Shawmont	United States	Record daily precipitation	63.5 mm (2.5 in)	39 of 100 (Notable)
Quakertown	United States	Record daily precipitation	49.8 mm (2.0 in)	39 of 100 (Notable)
W Chester 2 NW	United States	Record daily precipitation	69.9 mm (2.8 in)	39 of 100 (Notable)
Darlington	United States	Record daily precipitation	72.9 mm (2.9 in)	36 of 100 (Notable)
Carroll	United States	Record daily precipitation	122.4 mm (4.8 in)	33 of 100 (Routine)
Chatham	Canada	Record daily precipitation	37.1 mm (1.5 in)	31 of 100 (Routine)
Baltimore Customs House	United States	Record daily precipitation	67.1 mm (2.6 in)	30 of 100 (Routine)
Milford 2 SE	United States	Record daily precipitation	68.6 mm (2.7 in)	29 of 100 (Routine)
Flemington 5 NNW	United States	Record daily precipitation	42.2 mm (1.7 in)	28 of 100 (Routine)
Jim Thorpe	United States	Record daily precipitation	52.3 mm (2.1 in)	28 of 100 (Routine)
Philadelphia City	United States	Record daily precipitation	70.1 mm (2.8 in)	28 of 100 (Routine)
Laurel 3 W	United States	Record daily precipitation	69.1 mm (2.7 in)	26 of 100 (Routine)
Vilnius	Lithuania	Record daily precipitation	33.2 mm (1.3 in)	25 of 100 (Routine)
Trenton 2	United States	Record daily precipitation	50.5 mm (2.0 in)	25 of 100 (Routine)
Mohonk Lake	United States	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)
Hohenwald	United States	Record daily precipitation	46.2 mm (1.8 in)	23 of 100 (Routine)
Orono	United States	Record high minimum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Fairmont	United States	Record daily precipitation	32.8 mm (1.3 in)	22 of 100 (Routine)
Stevens Pt	United States	Record daily precipitation	38.9 mm (1.5 in)	22 of 100 (Routine)
Viroqua	United States	Record daily precipitation	31.2 mm (1.2 in)	22 of 100 (Routine)
Caruthersville	United States	Record daily precipitation	50.8 mm (2.0 in)	21 of 100 (Routine)
Sussex 1 NW	United States	Record daily precipitation	52.1 mm (2.1 in)	21 of 100 (Routine)
Mt Airy 2 W	United States	Record daily precipitation	43.2 mm (1.7 in)	21 of 100 (Routine)
Wilmington Wb City	United States	Record daily precipitation	51.3 mm (2.0 in)	21 of 100 (Routine)
Baku	Azerbaijan	Record daily precipitation	10.8 mm (0.4 in)	20 of 100 (Routine)
Agricultural College	United States	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Darwin Post Office	Australia	Record high minimum temperature	25.2 C (77.4 F)	20 of 100 (Routine)
Windsor Kings College	Canada	Record high maximum temperature	35.0 C (95.0 F)	20 of 100 (Routine)
La Crosse River	United States	Record daily precipitation	28.4 mm (1.1 in)	20 of 100 (Routine)
Cobar Post Office	Australia	Record high maximum temperature	27.2 C (81.0 F)	19 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record high maximum temperature	22.8 C (73.0 F)	19 of 100 (Routine)
Fallston	United States	Record daily precipitation	92.2 mm (3.6 in)	19 of 100 (Routine)
New Braunfels	United States	Record high minimum temperature	25.6 C (78.1 F)	18 of 100 (Routine)
Fort National	Algeria	Record daily precipitation	5.0 mm (0.20 in)	17 of 100 (Routine)
Birch Tree	United States	Record daily precipitation	40.6 mm (1.6 in)	17 of 100 (Routine)
Lambertville River	United States	Record daily precipitation	36.1 mm (1.4 in)	17 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	25.0 C (77.0 F)	16 of 100 (Routine)
Oskaloosa	United States	Record daily precipitation	37.1 mm (1.5 in)	16 of 100 (Routine)
College Park	United States	Record daily precipitation	53.8 mm (2.1 in)	16 of 100 (Routine)
Bethlehem	United States	Record high minimum temperature	18.9 C (66.0 F)	16 of 100 (Routine)
Olin	United States	Record daily precipitation	33.8 mm (1.3 in)	15 of 100 (Routine)
Salem AP (McNary Field)	United States	Record low minimum temperature	6.1 C (43.0 F)	15 of 100 (Routine)
Morrison	United States	Record daily precipitation	34.8 mm (1.4 in)	14 of 100 (Routine)
Ft Scott	United States	Record low maximum temperature	25.6 C (78.1 F)	14 of 100 (Routine)
Addison	United States	Record low minimum temperature	5.0 C (41.0 F)	14 of 100 (Routine)
Kingfisher	United States	Record high minimum temperature	24.4 C (75.9 F)	14 of 100 (Routine)
Murfreesboro 5 N	United States	Record low minimum temperature	12.2 C (54.0 F)	14 of 100 (Routine)
Mildura Post Office	Australia	Record high minimum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Charlottetown	Canada	Record high maximum temperature	30.0 C (86.0 F)	13 of 100 (Routine)
Bridgeville 1 NW	United States	Record daily precipitation	52.8 mm (2.1 in)	13 of 100 (Routine)
Bloomington Normal	United States	Record daily precipitation	28.2 mm (1.1 in)	13 of 100 (Routine)
Easton	United States	Record daily precipitation	45.7 mm (1.8 in)	13 of 100 (Routine)
Medford	United States	Record daily precipitation	26.7 mm (1.1 in)	13 of 100 (Routine)
Boston City WSO	United States	Record high minimum temperature	21.7 C (71.1 F)	13 of 100 (Routine)
Charleville Post Office	Australia	Record high maximum temperature	29.7 C (85.5 F)	12 of 100 (Routine)
Chatham	Canada	Record high maximum temperature	31.7 C (89.1 F)	12 of 100 (Routine)

Counts by Type and Timescale

131 records

Records set or tied on 17 August 1928 by type: Highest daily maximum 26, Lowest daily maximum 10, Highest daily minimum 28, Lowest daily minimum 8, Heaviest daily rainfall 59.

Records on 17 August 1928 by type
Record type	Records
Highest daily maximum	26
Lowest daily maximum	10
Highest daily minimum	28
Lowest daily minimum	8
Heaviest daily rainfall	59
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1928 by timescale: all-time 1, monthly 1, daily 129.

How Much Records Were Beaten By

98 broken records

Margins by which the 98 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 80.2. Ties are not counted.

Top 20 by Significance

17 August 1928

Top 20 records on 17 August 1928 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1928	Belvidere, US	daily rain	103.6 mm (4.1 in)	80.2 mm (3.2 in)	8 years	45 of 100 (Notable)
17 August 1928	Charlotteburg Rsvr, US	daily rain	59.7 mm (2.4 in)	54.6 mm (2.1 in)	20 years	45 of 100 (Notable)
17 August 1928	Coatesville 1 SW, US	all-time rain	134.1 mm (5.3 in)	9.9 mm (0.39 in)	34 years	40 of 100 (Notable)
17 August 1928	Wilmington City Hall, US	daily rain	77.7 mm (3.1 in)	53.6 mm (2.1 in)	18 years	39 of 100 (Notable)
17 August 1928	Philadelphia Shawmont, US	daily rain	63.5 mm (2.5 in)	52.1 mm (2.1 in)	29 years	39 of 100 (Notable)
17 August 1928	Quakertown, US	daily rain	49.8 mm (2.0 in)	38.1 mm (1.5 in)	34 years	39 of 100 (Notable)
17 August 1928	W Chester 2 NW, US	daily rain	69.9 mm (2.8 in)	50.6 mm (2.0 in)	9 years	39 of 100 (Notable)
17 August 1928	Darlington, US	daily rain	72.9 mm (2.9 in)	54.9 mm (2.2 in)	9 years	36 of 100 (Notable)
17 August 1928	Carroll, US	monthly rain	122.4 mm (4.8 in)	28.4 mm (1.1 in)	7 years	33 of 100 (Routine)
17 August 1928	Chatham, CA	daily rain	37.1 mm (1.5 in)	13.5 mm (0.5 in)	45 years	31 of 100 (Routine)
17 August 1928	Baltimore Customs House, US	daily rain	67.1 mm (2.6 in)	15.5 mm (0.6 in)	48 years	30 of 100 (Routine)
17 August 1928	Milford 2 SE, US	daily rain	68.6 mm (2.7 in)	43.2 mm (1.7 in)	2 years	29 of 100 (Routine)
17 August 1928	Flemington 5 NNW, US	daily rain	42.2 mm (1.7 in)	29.8 mm (1.2 in)	19 years	28 of 100 (Routine)
17 August 1928	Jim Thorpe, US	daily rain	52.3 mm (2.1 in)	26.4 mm (1.0 in)	20 years	28 of 100 (Routine)
17 August 1928	Philadelphia City, US	daily rain	70.1 mm (2.8 in)	15.2 mm (0.6 in)	48 years	28 of 100 (Routine)
17 August 1928	Laurel 3 W, US	daily rain	69.1 mm (2.7 in)	31.0 mm (1.2 in)	11 years	26 of 100 (Routine)
17 August 1928	Vilnius, LT	daily rain	33.2 mm (1.3 in)	10.0 mm (0.4 in)	30 years	25 of 100 (Routine)
17 August 1928	Trenton 2, US	daily rain	50.5 mm (2.0 in)	22.6 mm (0.9 in)	29 years	25 of 100 (Routine)
17 August 1928	Mohonk Lake, US	daily rain	41.9 mm (1.6 in)	22.8 mm (0.9 in)	21 years	24 of 100 (Routine)
17 August 1928	Hohenwald, US	daily rain	46.2 mm (1.8 in)	25.4 mm (1.0 in)	13 years	23 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

1797 to 1928

Records set or tied on this calendar date in each year from 1797 to 1928. 1928 had 131 records.

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

Records on 08-17 in each year
Year	Records
1797	2
1802	2
1820	2
1837	1
1838	2
1841	2
1842	1
1845	2
1853	1
1854	1
1856	1
1857	1
1861	3
1862	1
1867	1
1868	3
1869	1
1872	1
1875	2
1876	5
1879	1
1881	1
1882	1
1883	2
1885	3
1886	1
1888	5
1891	1
1892	3
1893	2
1894	3
1895	2
1896	3
1897	1
1898	5
1899	8
1900	3
1901	14
1902	7
1903	6
1904	2
1905	11
1906	28
1907	9
1908	26
1909	24
1910	17
1911	18
1912	31
1913	79
1914	41
1915	28
1916	33
1917	35
1918	112
1919	37
1920	110
1921	37
1922	169
1923	161
1924	171
1925	130
1926	182
1927	228
1928	131
1929	243
1930	138
1931	302
1932	360
1933	260
1934	377
1935	437
1936	670
1937	726
1938	466
1939	364
1940	341
1941	378
1942	461
1943	743
1944	531
1945	387
1946	433
1947	682
1948	475
1949	371
1950	522
1951	413
1952	470
1953	345
1954	685
1955	465
1956	407
1957	504
1958	519
1959	543
1960	533
1961	998
1962	445
1963	650
1964	410
1965	641
1966	496
1967	679
1968	953
1969	593
1970	467
1971	447
1972	1,044
1973	750
1974	582
1975	612
1976	797
1977	1,216
1978	814
1979	1,464
1980	895
1981	1,112
1982	554
1983	1,574
1984	726
1985	948
1986	916
1987	1,150
1988	1,608
1989	687
1990	949
1991	560
1992	1,813
1993	803
1994	1,038
1995	1,724
1996	752
1997	1,544
1998	1,003
1999	697
2000	994
2001	1,101
2002	1,266
2003	948
2004	1,046
2005	722
2006	814
2007	1,646
2008	1,301
2009	922
2010	1,105
2011	956
2012	1,215
2013	802
2014	997
2015	890
2016	748
2017	544
2018	518
2019	467
2020	1,529
2021	800
2022	1,428
2023	1,032
2024	740
2025	538
2026	535

Download the Data

Data for records on 1928-08-17: 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 20	80
20 to 40	11
40 to 60	6
60 to 80	0
80 to 100	1