Weather Records on 1 September 2019

800 weather records were set or tied worldwide on 1 September 2019. Highest significance: Pittsburgh ASOS, US.

Key Facts for 1 September 2019

On 1 September 2019, 800 weather records were set or tied at long-record stations worldwide.
684 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 137 monthly and 661 daily.
Pittsburgh ASOS set a daily record precipitation of 85.9 mm (3.4 in) on 1 September 2019.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 439 records.

Record Map

800 stations

800 station records on 1 September 2019 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 September 2019: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pittsburgh ASOS	United States	Record daily precipitation	85.9 mm (3.4 in)	63 of 100 (Major)
Bloomfield	United States	Record daily precipitation	42.9 mm (1.7 in)	52 of 100 (Notable)
Kahuku 912	United States	Record high minimum temperature	25.6 C (78.1 F)	51 of 100 (Notable)
Langshyttan_D	Sweden	Record daily precipitation	47.1 mm (1.9 in)	45 of 100 (Notable)
Kahuku 912	United States	Record high maximum temperature	31.7 C (89.1 F)	45 of 100 (Notable)
Monroe City	United States	Record low maximum temperature	21.7 C (71.1 F)	44 of 100 (Notable)
Iliamna AP	United States	Record high minimum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Aktobe	Kazakhstan	Record low maximum temperature	14.1 C (57.4 F)	41 of 100 (Notable)
Visby_Flygplats	Sweden	Record daily precipitation	33.6 mm (1.3 in)	41 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record high maximum temperature	26.1 C (79.0 F)	41 of 100 (Notable)
McGill	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Black Rock	United States	Record high maximum temperature	37.8 C (100.0 F)	41 of 100 (Notable)
Nome AP	United States	Record high minimum temperature	10.6 C (51.1 F)	41 of 100 (Notable)
Turgaj	Kazakhstan	Record low maximum temperature	14.8 C (58.6 F)	40 of 100 (Notable)
Sihccajavri	Norway	Record high minimum temperature	12.5 C (54.5 F)	40 of 100 (Notable)
Drain	United States	Record high minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Buffalo Bill Dam	United States	Record high maximum temperature	33.3 C (91.9 F)	40 of 100 (Notable)
Karlshamn	Sweden	Record high minimum temperature	19.2 C (66.6 F)	39 of 100 (Notable)
Hemse	Sweden	Record daily precipitation	25.3 mm (1.0 in)	39 of 100 (Notable)
Morgan	United States	Record high maximum temperature	35.6 C (96.1 F)	39 of 100 (Notable)
Ronneby-Bredakra	Sweden	Record high minimum temperature	18.8 C (65.8 F)	38 of 100 (Notable)
Brackettville	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Lindenberg	Germany	Record high minimum temperature	18.5 C (65.3 F)	37 of 100 (Notable)
Veselaja Gorka	Russia	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Hartington	United States	Record daily precipitation	32.0 mm (1.3 in)	37 of 100 (Notable)
Graz	Austria	Record high minimum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Vaasa Vaasan Lentoasema	Finland	Record high maximum temperature	25.1 C (77.2 F)	36 of 100 (Notable)
Visby_Flygplats	Sweden	Record high maximum temperature	28.1 C (82.6 F)	36 of 100 (Notable)
Sala	Sweden	Record daily precipitation	34.6 mm (1.4 in)	36 of 100 (Notable)
Halls Creek Airport	Australia	Record low minimum temperature	8.2 C (46.8 F)	35 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record high minimum temperature	17.7 C (63.9 F)	35 of 100 (Notable)
Caballo Dam	United States	Record high minimum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Zagreb-Gric	Croatia	Record high minimum temperature	21.3 C (70.3 F)	34 of 100 (Routine)
Farmington Ag Sci Cnt	United States	Record high minimum temperature	23.9 C (75.0 F)	34 of 100 (Routine)
El Campo	United States	Record low minimum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Fillmore	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Bad Muskau	Germany	Record high minimum temperature	18.2 C (64.8 F)	33 of 100 (Routine)
Riddle	United States	Record high minimum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Battle Ground	United States	Record high minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Balagansk	Russia	Record high minimum temperature	14.7 C (58.5 F)	32 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record daily precipitation	31.7 mm (1.2 in)	32 of 100 (Routine)
Shoshone	United States	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)
Olton	United States	Record daily precipitation	43.7 mm (1.7 in)	32 of 100 (Routine)
Pavillion	United States	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)
Santo Domingo	Dominican Republic	Record high minimum temperature	27.8 C (82.0 F)	31 of 100 (Routine)
Inari Ivalo Lentoasema	Finland	Record high minimum temperature	13.4 C (56.1 F)	31 of 100 (Routine)
Rijeka	Croatia	Record high minimum temperature	22.6 C (72.7 F)	31 of 100 (Routine)
Hofors	Sweden	Record daily precipitation	40.3 mm (1.6 in)	31 of 100 (Routine)
Northdale	United States	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
King Salmon	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Turany	Czech Republic	Record high minimum temperature	20.5 C (68.9 F)	30 of 100 (Routine)
Mustasaari Valassaaret	Finland	Record high maximum temperature	24.5 C (76.1 F)	30 of 100 (Routine)
Thule Op Site	Greenland [Denmark]	Record high maximum temperature	15.3 C (59.5 F)	30 of 100 (Routine)
Angermunde	Germany	Record high minimum temperature	16.6 C (61.9 F)	30 of 100 (Routine)
Oberviechtach	Germany	Record high minimum temperature	16.2 C (61.2 F)	30 of 100 (Routine)
Bodoe VI	Norway	Record high maximum temperature	23.4 C (74.1 F)	30 of 100 (Routine)
Kautokeino	Norway	Record high minimum temperature	11.3 C (52.3 F)	30 of 100 (Routine)
Teriberka	Russia	Record high minimum temperature	13.3 C (55.9 F)	30 of 100 (Routine)
Sodertalje	Sweden	Record high maximum temperature	26.3 C (79.3 F)	30 of 100 (Routine)
Boulder	United States	Record high maximum temperature	36.7 C (98.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

800 records

Records set or tied on 1 September 2019 by type: Highest daily maximum 366, Lowest daily maximum 40, Highest daily minimum 318, Lowest daily minimum 25, Heaviest daily rainfall 51.

Records on 1 September 2019 by type
Record type	Records
Highest daily maximum	366
Lowest daily maximum	40
Highest daily minimum	318
Lowest daily minimum	25
Heaviest daily rainfall	51
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 September 2019 by timescale: all-time 2, monthly 137, daily 661.

How Much Records Were Beaten By

597 broken records

Margins by which the 597 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 63.5. Ties are not counted.

Top 20 by Significance

1 September 2019

Top 20 records on 1 September 2019 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 2019	Pittsburgh ASOS, US	daily rain	85.9 mm (3.4 in)	63.5 mm (2.5 in)	53 years	63 of 100 (Major)
1 September 2019	Bloomfield, US	daily rain	42.9 mm (1.7 in)	21.6 mm (0.9 in)	85 years	52 of 100 (Notable)
1 September 2019	Kahuku 912, US	daily high min	25.6 C (78.1 F)	1.7 C (3.1 F)	105 years	51 of 100 (Notable)
1 September 2019	Langshyttan_D, SE	monthly rain	47.1 mm (1.9 in)	17.1 mm (0.7 in)	8 years	45 of 100 (Notable)
1 September 2019	Kahuku 912, US	daily high max	31.7 C (89.1 F)	0.6 C (1.1 F)	100 years	45 of 100 (Notable)
1 September 2019	Monroe City, US	daily low max	21.7 C (71.1 F)	2.2 C (4.0 F)	116 years	44 of 100 (Notable)
1 September 2019	Iliamna AP, US	monthly high min	13.9 C (57.0 F)	0.6 C (1.1 F)	76 years	44 of 100 (Notable)
1 September 2019	Aktobe, KZ	daily low max	14.1 C (57.4 F)	0.9 C (1.6 F)	112 years	41 of 100 (Notable)
1 September 2019	Visby_Flygplats, SE	daily rain	33.6 mm (1.3 in)	12.9 mm (0.5 in)	26 years	41 of 100 (Notable)
1 September 2019	Vasteras-Hasslo, SE	daily high max	26.1 C (79.0 F)	0.6 C (1.1 F)	112 years	41 of 100 (Notable)
1 September 2019	McGill, US	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	101 years	41 of 100 (Notable)
1 September 2019	Black Rock, US	monthly high max	37.8 C (100.0 F)	1.1 C (2.0 F)	63 years	41 of 100 (Notable)
1 September 2019	Nome AP, US	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	108 years	41 of 100 (Notable)
1 September 2019	Turgaj, KZ	daily low max	14.8 C (58.6 F)	0.5 C (0.9 F)	112 years	40 of 100 (Notable)
1 September 2019	Sihccajavri, NO	daily high min	12.5 C (54.5 F)	2.3 C (4.1 F)	84 years	40 of 100 (Notable)
1 September 2019	Drain, US	daily high min	17.2 C (63.0 F)	1.1 C (2.0 F)	92 years	40 of 100 (Notable)
1 September 2019	Buffalo Bill Dam, US	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	108 years	40 of 100 (Notable)
1 September 2019	Karlshamn, SE	monthly high min	19.2 C (66.6 F)	0.2 C (0.4 F)	63 years	39 of 100 (Notable)
1 September 2019	Hemse, SE	daily rain	25.3 mm (1.0 in)	5.8 mm (0.23 in)	69 years	39 of 100 (Notable)
1 September 2019	Morgan, US	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	94 years	39 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

1797 to 2019

Records set or tied on this calendar date in each year from 1797 to 2019. 2019 had 800 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 2019-09-01: 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	584
10 to 20	10
20 to 30	2
30 to 40	0
40 to 50	0
50 to 60	0
60 to 70	1