Weather Records on 1 April 1991

693 weather records were set or tied worldwide on 1 April 1991. Highest significance: Lincang, CN.

Key Facts for 1 April 1991

On 1 April 1991, 693 weather records were set or tied at long-record stations worldwide.
227 were record highs and 221 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 40 monthly and 653 daily.
Lincang set a monthly record daily precipitation of 54.1 mm (2.1 in) on 1 April 1991.
Across 160 earlier years (1803 to 2026) the same calendar date averaged 476 records.

Record Map

693 stations

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

Weather records on 1 April 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lincang	China	Record daily precipitation	54.1 mm (2.1 in)	57 of 100 (Notable)
Wasilla 3 S	United States	Record snow depth	43.2 cm (17.0 in)	55 of 100 (Notable)
Tengchong	China	Record daily precipitation	39.9 mm (1.6 in)	46 of 100 (Notable)
McKinney Muni AP	United States	Record low minimum temperature	-7.2 C (19.0 F)	45 of 100 (Notable)
Bjorheim I Ryfylke	Norway	Record daily precipitation	36.5 mm (1.4 in)	43 of 100 (Notable)
John Martin Dam	United States	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Bento Quirino	Brazil	Record daily precipitation	70.5 mm (2.8 in)	39 of 100 (Notable)
Usina Do Fojo	Brazil	Record daily precipitation	90.1 mm (3.5 in)	38 of 100 (Notable)
Benmore: Younger Botanic Garde	United Kingdom	Record daily precipitation	66.6 mm (2.6 in)	38 of 100 (Notable)
Mount Burr Forest Reserve	Australia	Record daily precipitation	28.6 mm (1.1 in)	37 of 100 (Notable)
Rinconada	Mexico	Record low maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Fairbanks Intl AP	United States	Record snow depth	124.5 cm (49.0 in)	37 of 100 (Notable)
Blackwater Post Office	Australia	Record daily precipitation	31.0 mm (1.2 in)	36 of 100 (Notable)
Recalque Abc	Brazil	Record daily precipitation	95.7 mm (3.8 in)	36 of 100 (Notable)
Polson	United States	Record high maximum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Cuyamaca	United States	Record daily snowfall	20.3 cm (8.0 in)	35 of 100 (Notable)
Culbertson	United States	Record high maximum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Grizedale	United Kingdom	Record daily precipitation	50.9 mm (2.0 in)	34 of 100 (Routine)
Ft Meade	United States	Record high maximum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
Headworks Portland Wtr B	United States	Record high minimum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Paisley	United Kingdom	Record daily precipitation	28.3 mm (1.1 in)	32 of 100 (Routine)
Santa Gertrudis	Mexico	Record low maximum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Aquismon	Mexico	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
College Obsy	United States	Record snow depth	124.5 cm (49.0 in)	31 of 100 (Routine)
Silvan	Australia	Record daily precipitation	25.0 mm (1.0 in)	30 of 100 (Routine)
San Diego de Alejandria	Mexico	Record low minimum temperature	0.6 C (33.1 F)	30 of 100 (Routine)
Stadlandet	Norway	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Valentine	United States	Record high maximum temperature	23.3 C (73.9 F)	30 of 100 (Routine)
Ochoco Rs	United States	Record high minimum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Bison	United States	Record high maximum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
Davenport	United States	Record high maximum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Nespelem 2 S	United States	Record high minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
McKinley Park	United States	Record snow depth	129.5 cm (51.0 in)	30 of 100 (Routine)
Weifang	China	Record low minimum temperature	-5.9 C (21.4 F)	29 of 100 (Routine)
Cut Bank AP	United States	Record high maximum temperature	18.9 C (66.0 F)	29 of 100 (Routine)
Bradshaw Homestead	Australia	Record daily precipitation	45.0 mm (1.8 in)	28 of 100 (Routine)
Zoh Laguna	Mexico	Record low maximum temperature	23.9 C (75.0 F)	28 of 100 (Routine)
El Pujal	Mexico	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Sihccajavri	Norway	Record low maximum temperature	-13.6 C (7.5 F)	28 of 100 (Routine)
Sviland	Norway	Record daily precipitation	27.5 mm (1.1 in)	28 of 100 (Routine)
Kunming	China	Record low maximum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
Kaiserslautern	Germany	Record low minimum temperature	-4.5 C (23.9 F)	27 of 100 (Routine)
Hundseid I Vikedal	Norway	Record daily precipitation	44.0 mm (1.7 in)	27 of 100 (Routine)
Florida	United States	Record low minimum temperature	-12.2 C (10.0 F)	27 of 100 (Routine)
Seneca	United States	Record high minimum temperature	1.1 C (34.0 F)	27 of 100 (Routine)
Simao	China	Record daily precipitation	37.8 mm (1.5 in)	26 of 100 (Routine)
General Cepeda	Mexico	Record low maximum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Brekke I Sogn	Norway	Record daily precipitation	52.5 mm (2.1 in)	26 of 100 (Routine)
Malham Tarn	United Kingdom	Record daily precipitation	36.3 mm (1.4 in)	26 of 100 (Routine)
Shamokin	United States	Record daily snowfall	8.4 cm (3.3 in)	26 of 100 (Routine)
Santa Juliana	Brazil	Record daily precipitation	50.0 mm (2.0 in)	25 of 100 (Routine)
Serrana	Brazil	Record daily precipitation	81.2 mm (3.2 in)	25 of 100 (Routine)
Mengzi	China	Record low maximum temperature	12.4 C (54.3 F)	25 of 100 (Routine)
Lampazos (Smn)	Mexico	Record low minimum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
Bodoe VI	Norway	Record low minimum temperature	-10.3 C (13.5 F)	25 of 100 (Routine)
Nakhon Ratchasima	Thailand	Record low maximum temperature	25.8 C (78.4 F)	25 of 100 (Routine)
Usina Parauna	Brazil	Record daily precipitation	39.6 mm (1.6 in)	24 of 100 (Routine)
Piracaia	Brazil	Record daily precipitation	48.5 mm (1.9 in)	24 of 100 (Routine)
San Luis San Pedro	Mexico	Record high maximum temperature	40.0 C (104.0 F)	24 of 100 (Routine)
Suphan Buri	Thailand	Record daily precipitation	40.9 mm (1.6 in)	24 of 100 (Routine)

Counts by Type and Timescale

693 records

Records set or tied on 1 April 1991 by type: Highest daily maximum 134, Lowest daily maximum 127, Highest daily minimum 93, Lowest daily minimum 94, Heaviest daily rainfall 228, Heaviest daily snowfall 10, Deepest snow cover 7.

Records on 1 April 1991 by type
Record type	Records
Highest daily maximum	134
Lowest daily maximum	127
Highest daily minimum	93
Lowest daily minimum	94
Heaviest daily rainfall	228
Heaviest daily snowfall	10
Deepest snow cover	7

Records on 1 April 1991 by timescale: all-time 0, monthly 40, daily 653.

How Much Records Were Beaten By

564 broken records

Margins by which the 564 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

1 April 1991

Top 20 records on 1 April 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 April 1991	Lincang, CN	monthly rain	54.1 mm (2.1 in)	21.0 mm (0.8 in)	13 years	57 of 100 (Notable)
1 April 1991	Wasilla 3 S, US	monthly snow depth	43.2 cm (17.0 in)	22.9 cm (9.0 in)	4 years	55 of 100 (Notable)
1 April 1991	Tengchong, CN	daily rain	39.9 mm (1.6 in)	26.9 mm (1.1 in)	8 years	46 of 100 (Notable)
1 April 1991	McKinney Muni AP, US	monthly low min	-7.2 C (19.0 F)	3.3 C (5.9 F)	70 years	45 of 100 (Notable)
1 April 1991	Bjorheim I Ryfylke, NO	daily rain	36.5 mm (1.4 in)	18.0 mm (0.7 in)	32 years	43 of 100 (Notable)
1 April 1991	John Martin Dam, US	daily rain	30.0 mm (1.2 in)	22.6 mm (0.9 in)	20 years	41 of 100 (Notable)
1 April 1991	Bento Quirino, BR	daily rain	70.5 mm (2.8 in)	39.0 mm (1.5 in)	24 years	39 of 100 (Notable)
1 April 1991	Usina Do Fojo, BR	monthly rain	90.1 mm (3.5 in)	19.4 mm (0.8 in)	25 years	38 of 100 (Notable)
1 April 1991	Benmore: Younger Botanic Garde, GB	monthly rain	66.6 mm (2.6 in)	13.8 mm (0.5 in)	29 years	38 of 100 (Notable)
1 April 1991	Mount Burr Forest Reserve, AU	daily rain	28.6 mm (1.1 in)	17.7 mm (0.7 in)	22 years	37 of 100 (Notable)
1 April 1991	Rinconada, MX	daily low max	12.8 C (55.0 F)	12.8 C (23.0 F)	12 years	37 of 100 (Notable)
1 April 1991	Fairbanks Intl AP, US	monthly snow depth	124.5 cm (49.0 in)	30.5 cm (12.0 in)	24 years	37 of 100 (Notable)
1 April 1991	Blackwater Post Office, AU	daily rain	31.0 mm (1.2 in)	6.9 mm (0.27 in)	81 years	36 of 100 (Notable)
1 April 1991	Recalque Abc, BR	monthly rain	95.7 mm (3.8 in)	14.3 mm (0.6 in)	34 years	36 of 100 (Notable)
1 April 1991	Polson, US	daily high max	20.6 C (69.1 F)	2.3 C (4.1 F)	81 years	36 of 100 (Notable)
1 April 1991	Cuyamaca, US	daily snowfall	20.3 cm (8.0 in)	7.6 cm (3.0 in)	50 years	35 of 100 (Notable)
1 April 1991	Culbertson, US	daily high max	22.8 C (73.0 F)	1.1 C (2.0 F)	84 years	35 of 100 (Notable)
1 April 1991	Grizedale, GB	daily rain	50.9 mm (2.0 in)	20.4 mm (0.8 in)	24 years	34 of 100 (Routine)
1 April 1991	Ft Meade, US	daily high max	24.4 C (75.9 F)	0.5 C (0.9 F)	84 years	34 of 100 (Routine)
1 April 1991	Headworks Portland Wtr B, US	daily high min	8.9 C (48.0 F)	0.6 C (1.1 F)	76 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

1803 to 1991

Records set or tied on this calendar date in each year from 1803 to 1991. 1991 had 693 records.

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

Records on 04-01 in each year
Year	Records
1803	1
1805	1
1808	1
1813	1
1815	3
1819	1
1830	2
1847	2
1848	1
1850	1
1855	3
1856	1
1861	2
1862	2
1865	1
1869	2
1872	1
1873	1
1874	2
1876	1
1878	3
1879	2
1881	1
1885	1
1887	2
1888	2
1889	2
1891	5
1892	1
1893	2
1896	4
1897	5
1898	3
1899	4
1900	4
1901	4
1902	4
1903	12
1904	29
1905	10
1906	7
1907	24
1908	5
1909	13
1910	26
1911	27
1912	31
1913	35
1914	37
1915	25
1916	35
1917	80
1918	51
1919	165
1920	65
1921	46
1922	98
1923	319
1924	257
1925	111
1926	234
1927	326
1928	194
1929	336
1930	153
1931	846
1932	292
1933	188
1934	153
1935	424
1936	1,248
1937	192
1938	461
1939	226
1940	840
1941	285
1942	209
1943	319
1944	266
1945	880
1946	1,172
1947	390
1948	590
1949	308
1950	455
1951	406
1952	419
1953	249
1954	493
1955	288
1956	744
1957	314
1958	535
1959	821
1960	295
1961	496
1962	652
1963	1,123
1964	951
1965	678
1966	689
1967	928
1968	377
1969	611
1970	894
1971	384
1972	510
1973	680
1974	894
1975	1,806
1976	767
1977	524
1978	1,013
1979	738
1980	797
1981	1,115
1982	884
1983	643
1984	662
1985	826
1986	982
1987	1,762
1988	1,259
1989	1,098
1990	952
1991	693
1992	981
1993	783
1994	739
1995	1,056
1996	996
1997	1,255
1998	1,703
1999	1,341
2000	690
2001	575
2002	985
2003	1,366
2004	926
2005	1,086
2006	929
2007	963
2008	1,457
2009	846
2010	1,022
2011	1,105
2012	1,327
2013	719
2014	657
2015	606
2016	842
2017	792
2018	870
2019	674
2020	719
2021	790
2022	853
2023	1,069
2024	788
2025	779
2026	1,042

Download the Data

Data for records on 1991-04-01: 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 50	556
50 to 100	2
100 to 150	1
150 to 200	0
200 to 250	3
250 to 300	0
300 to 350	2