Weather Records on 9 April 1991

1,545 weather records were set or tied worldwide on 9 April 1991. Highest significance: E Tawas, US.

Key Facts for 9 April 1991

On 9 April 1991, 1,545 weather records were set or tied at long-record stations worldwide.
1,136 were record highs and 80 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 54 monthly and 1,490 daily.
E Tawas set a monthly record daily precipitation of 89.4 mm (3.5 in) on 9 April 1991.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,545 stations

1,545 station records on 9 April 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 April 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
E Tawas	United States	Record daily precipitation	89.4 mm (3.5 in)	76 of 100 (Major)
Standish 4NE	United States	Record daily precipitation	71.1 mm (2.8 in)	60 of 100 (Major)
Alma	United States	Record daily precipitation	38.4 mm (1.5 in)	52 of 100 (Notable)
Eldora	United States	Record daily precipitation	60.5 mm (2.4 in)	49 of 100 (Notable)
Newark Ag Farm	United States	Record high minimum temperature	19.4 C (66.9 F)	48 of 100 (Notable)
Caro Wwtp	United States	Record daily precipitation	61.0 mm (2.4 in)	48 of 100 (Notable)
Manistique Wwtp	United States	Record daily snowfall	20.3 cm (8.0 in)	48 of 100 (Notable)
S Haven	United States	Record daily precipitation	40.6 mm (1.6 in)	48 of 100 (Notable)
Byhalia	United States	Record daily precipitation	198.1 mm (7.8 in)	48 of 100 (Notable)
Griffiss AFB	United States	Record high minimum temperature	16.7 C (62.1 F)	48 of 100 (Notable)
Ny City Cntrl Park	United States	Record high minimum temperature	20.0 C (68.0 F)	48 of 100 (Notable)
San Luis San Pedro	Mexico	Record high maximum temperature	40.6 C (105.1 F)	44 of 100 (Notable)
Owosso Wwtp	United States	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Moorestown 4 E	United States	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Auburn	United States	Record high minimum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Valentia Observatory	Ireland	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Monroe	United States	Record high minimum temperature	15.0 C (59.0 F)	43 of 100 (Notable)
W Branch 3SE	United States	Record daily precipitation	51.3 mm (2.0 in)	43 of 100 (Notable)
Lexington	United States	Record high minimum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Blue Hill Coop	United States	Record high maximum temperature	30.6 C (87.1 F)	42 of 100 (Notable)
Ny City Cntrl Park	United States	Record high maximum temperature	30.0 C (86.0 F)	42 of 100 (Notable)
Shahristanskij Perev	Tajikistan	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Fayette	United States	Record daily precipitation	69.3 mm (2.7 in)	41 of 100 (Notable)
Elkader 6 SSW	United States	Record daily precipitation	39.4 mm (1.6 in)	41 of 100 (Notable)
Cheboygan	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Millington 3 SE	United States	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Westfield 2 SSE	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
W Pt	United States	Record high minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Fond du Lac Wwtp	United States	Record daily precipitation	28.7 mm (1.1 in)	40 of 100 (Notable)
Martinsburg E W Virginia Rgnl	United States	Record high minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Philadelphia City	United States	Record high minimum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low maximum temperature	27.8 C (82.0 F)	39 of 100 (Notable)
Taunton	United States	Record high minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Lake Placid 2 S	United States	Record high minimum temperature	12.2 C (54.0 F)	39 of 100 (Notable)
Setauket Strong	United States	Record high minimum temperature	14.4 C (57.9 F)	39 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	39.1 mm (1.5 in)	38 of 100 (Notable)
Lowell	United States	Record high maximum temperature	31.7 C (89.1 F)	38 of 100 (Notable)
Madison 3NNW	United States	Record high minimum temperature	12.2 C (54.0 F)	38 of 100 (Notable)
Beaver Dam Wwtp	United States	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Kalispell Glacier AP	United States	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Bethlehem	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Cortland	United States	Record high minimum temperature	11.1 C (52.0 F)	37 of 100 (Notable)
Lowville	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Mohonk Lake	United States	Record high minimum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Scarsdale	United States	Record high minimum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
W Pt	United States	Record high maximum temperature	28.3 C (82.9 F)	37 of 100 (Notable)
Montpelier	United States	Record high minimum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Purcellville	United States	Record high minimum temperature	18.3 C (64.9 F)	37 of 100 (Notable)
Bayard	United States	Record high maximum temperature	31.1 C (88.0 F)	37 of 100 (Notable)
Rochester	United States	Record high minimum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Winamac 2SSE	United States	Record high minimum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Frederick Police Brks	United States	Record high minimum temperature	18.9 C (66.0 F)	36 of 100 (Notable)
Plymouth-Kingston	United States	Record high maximum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Cape May 2 NW	United States	Record high minimum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Plainfield	United States	Record high minimum temperature	15.6 C (60.1 F)	36 of 100 (Notable)
Norwich	United States	Record high minimum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Montrose	United States	Record high minimum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Wellsboro 4 SW	United States	Record high minimum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Logan	United States	Record high minimum temperature	15.6 C (60.1 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,545 records

Records set or tied on 9 April 1991 by type: Highest daily maximum 405, Lowest daily maximum 39, Highest daily minimum 731, Lowest daily minimum 41, Heaviest daily rainfall 289, Heaviest daily snowfall 31, Deepest snow cover 9.

Records on 9 April 1991 by type
Record type	Records
Highest daily maximum	405
Lowest daily maximum	39
Highest daily minimum	731
Lowest daily minimum	41
Heaviest daily rainfall	289
Heaviest daily snowfall	31
Deepest snow cover	9

Records on 9 April 1991 by timescale: all-time 1, monthly 54, daily 1,490.

How Much Records Were Beaten By

1,263 broken records

Margins by which the 1,263 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 355.0. Ties are not counted.

Top 20 by Significance

9 April 1991

Top 20 records on 9 April 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 April 1991	E Tawas, US	monthly rain	89.4 mm (3.5 in)	24.6 mm (1.0 in)	85 years	76 of 100 (Major)
9 April 1991	Standish 4NE, US	monthly rain	71.1 mm (2.8 in)	27.7 mm (1.1 in)	9 years	60 of 100 (Major)
9 April 1991	Alma, US	daily rain	38.4 mm (1.5 in)	8.9 mm (0.35 in)	100 years	52 of 100 (Notable)
9 April 1991	Eldora, US	daily rain	60.5 mm (2.4 in)	44.8 mm (1.8 in)	17 years	49 of 100 (Notable)
9 April 1991	Newark Ag Farm, US	monthly high min	19.4 C (66.9 F)	0.5 C (0.9 F)	94 years	48 of 100 (Notable)
9 April 1991	Caro Wwtp, US	daily rain	61.0 mm (2.4 in)	37.1 mm (1.5 in)	9 years	48 of 100 (Notable)
9 April 1991	Manistique Wwtp, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	12 years	48 of 100 (Notable)
9 April 1991	S Haven, US	daily rain	40.6 mm (1.6 in)	15.2 mm (0.6 in)	76 years	48 of 100 (Notable)
9 April 1991	Byhalia, US	all-time rain	198.1 mm (7.8 in)	30.5 mm (1.2 in)	22 years	48 of 100 (Notable)
9 April 1991	Griffiss AFB, US	monthly high min	16.7 C (62.1 F)	1.1 C (2.0 F)	91 years	48 of 100 (Notable)
9 April 1991	Ny City Cntrl Park, US	daily high min	20.0 C (68.0 F)	3.3 C (5.9 F)	119 years	48 of 100 (Notable)
9 April 1991	San Luis San Pedro, MX	daily high max	40.6 C (105.1 F)	6.2 C (11.2 F)	16 years	44 of 100 (Notable)
9 April 1991	Owosso Wwtp, US	daily rain	27.2 mm (1.1 in)	9.9 mm (0.39 in)	77 years	44 of 100 (Notable)
9 April 1991	Moorestown 4 E, US	monthly high min	19.4 C (66.9 F)	1.1 C (2.0 F)	75 years	44 of 100 (Notable)
9 April 1991	Auburn, US	daily high min	13.9 C (57.0 F)	3.9 C (7.0 F)	86 years	44 of 100 (Notable)
9 April 1991	Valentia Observatory, IE	daily rain	36.6 mm (1.4 in)	18.2 mm (0.7 in)	18 years	43 of 100 (Notable)
9 April 1991	Monroe, US	daily high min	15.0 C (59.0 F)	7.8 C (14.0 F)	68 years	43 of 100 (Notable)
9 April 1991	W Branch 3SE, US	monthly rain	51.3 mm (2.0 in)	0.5 mm (0.02 in)	81 years	43 of 100 (Notable)
9 April 1991	Lexington, US	daily high min	15.6 C (60.1 F)	2.3 C (4.1 F)	97 years	43 of 100 (Notable)
9 April 1991	Blue Hill Coop, US	daily high max	30.6 C (87.1 F)	7.3 C (13.1 F)	69 years	42 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

1793 to 1991

Records set or tied on this calendar date in each year from 1793 to 1991. 1991 had 1,545 records.

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

Records on 04-09 in each year
Year	Records
1793	2
1798	1
1800	1
1805	1
1809	2
1812	2
1815	1
1818	1
1839	1
1842	2
1844	1
1846	1
1847	1
1849	1
1854	1
1856	1
1859	1
1862	1
1863	1
1864	1
1865	2
1866	2
1869	1
1871	2
1873	1
1877	1
1883	1
1884	1
1885	3
1886	1
1887	1
1888	3
1889	1
1890	7
1892	1
1893	1
1894	2
1895	4
1896	1
1897	3
1898	3
1899	9
1900	3
1901	8
1902	8
1903	12
1904	15
1905	21
1906	20
1907	21
1908	28
1909	25
1910	19
1911	21
1912	51
1913	16
1914	41
1915	89
1916	85
1917	105
1918	29
1919	67
1920	56
1921	114
1922	140
1923	79
1924	353
1925	129
1926	83
1927	260
1928	395
1929	402
1930	430
1931	193
1932	119
1933	320
1934	310
1935	398
1936	151
1937	172
1938	378
1939	282
1940	214
1941	297
1942	432
1943	752
1944	564
1945	1,055
1946	335
1947	174
1948	365
1949	179
1950	750
1951	304
1952	578
1953	638
1954	239
1955	484
1956	371
1957	502
1958	294
1959	634
1960	623
1961	879
1962	344
1963	390
1964	645
1965	651
1966	466
1967	743
1968	669
1969	898
1970	489
1971	576
1972	1,200
1973	1,695
1974	972
1975	968
1976	347
1977	1,693
1978	921
1979	855
1980	911
1981	785
1982	1,923
1983	1,170
1984	904
1985	1,424
1986	620
1987	604
1988	737
1989	1,402
1990	888
1991	1,545
1992	641
1993	687
1994	511
1995	1,296
1996	1,547
1997	2,686
1998	1,018
1999	1,848
2000	997
2001	1,947
2002	590
2003	1,781
2004	572
2005	998
2006	603
2007	1,412
2008	1,029
2009	802
2010	652
2011	1,480
2012	640
2013	1,245
2014	592
2015	664
2016	974
2017	759
2018	1,306
2019	716
2020	916
2021	642
2022	574
2023	512
2024	1,093
2025	530
2026	517

Download the Data

Data for records on 1991-04-09: 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 50	1,250
50 to 100	6
100 to 150	5
150 to 200	1
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1