Weather Records on 31 March 1991

634 weather records were set or tied worldwide on 31 March 1991. Highest significance: Palermo, IT.

Key Facts for 31 March 1991

On 31 March 1991, 634 weather records were set or tied at long-record stations worldwide.
115 were record highs and 238 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 11 monthly and 621 daily.
Palermo set a daily record precipitation of 29.8 mm (1.2 in) on 31 March 1991.
Across 155 earlier years (1808 to 2026) the same calendar date averaged 505 records.

Record Map

634 stations

634 station records on 31 March 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 March 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Palermo	Italy	Record daily precipitation	29.8 mm (1.2 in)	65 of 100 (Major)
Combolcha	Ethiopia	Record daily precipitation	192.0 mm (7.6 in)	63 of 100 (Major)
Pirassununga	Brazil	Record daily precipitation	87.0 mm (3.4 in)	56 of 100 (Notable)
Fazenda S.Joao Morro Vermelho	Brazil	Record daily precipitation	103.7 mm (4.1 in)	52 of 100 (Notable)
Corumbatai	Brazil	Record daily precipitation	84.1 mm (3.3 in)	50 of 100 (Notable)
Guaimbe	Brazil	Record daily precipitation	73.4 mm (2.9 in)	48 of 100 (Notable)
Delungra (Craigmore)	Australia	Record daily precipitation	29.6 mm (1.2 in)	46 of 100 (Notable)
Fazenda Monte Alegre	Brazil	Record daily precipitation	96.0 mm (3.8 in)	46 of 100 (Notable)
Lagoa Branca	Brazil	Record daily precipitation	57.3 mm (2.3 in)	45 of 100 (Notable)
El Progreso	Mexico	Record daily precipitation	46.0 mm (1.8 in)	45 of 100 (Notable)
Cuyamaca	United States	Record snow depth	35.6 cm (14.0 in)	44 of 100 (Notable)
Visconde de Rio Claro	Brazil	Record daily precipitation	77.3 mm (3.0 in)	43 of 100 (Notable)
Springer	United States	Record low maximum temperature	0.0 C (32.0 F)	43 of 100 (Notable)
San Luis San Pedro	Mexico	Record high maximum temperature	40.6 C (105.1 F)	42 of 100 (Notable)
Upper Bingara (Emohta)	Australia	Record daily precipitation	46.9 mm (1.8 in)	39 of 100 (Notable)
Cresciumal	Brazil	Record daily precipitation	65.5 mm (2.6 in)	39 of 100 (Notable)
Newport	United States	Record high maximum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Descalvado	Brazil	Record daily precipitation	78.3 mm (3.1 in)	38 of 100 (Notable)
Usina Chibarro (Cpfl)	Brazil	Record daily precipitation	58.5 mm (2.3 in)	38 of 100 (Notable)
Kantunilkin	Mexico	Record daily precipitation	61.0 mm (2.4 in)	37 of 100 (Notable)
Vardo	Norway	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Friona	United States	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Governador Fernando Costa	Brazil	Record daily precipitation	54.0 mm (2.1 in)	36 of 100 (Notable)
Irozaki	Japan	Record daily precipitation	96.0 mm (3.8 in)	36 of 100 (Notable)
Teocaltiche (Dge)	Mexico	Record low minimum temperature	-2.2 C (28.0 F)	36 of 100 (Notable)
Ixcatepec	Mexico	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)
Arcadia	United States	Record high minimum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Fazenda Ajudas	Brazil	Record daily precipitation	50.1 mm (2.0 in)	34 of 100 (Routine)
Santa Cruz Das Palmeiras	Brazil	Record daily precipitation	65.4 mm (2.6 in)	34 of 100 (Routine)
Pirassununga	Brazil	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Tres Brazos	Mexico	Record daily precipitation	42.2 mm (1.7 in)	33 of 100 (Routine)
Mt Wilson Cbs	United States	Record snow depth	58.4 cm (23.0 in)	33 of 100 (Routine)
Saint Maries	United States	Record high maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Mabel Downs	Australia	Record daily precipitation	28.0 mm (1.1 in)	32 of 100 (Routine)
Fazenda Chantebled	Brazil	Record daily precipitation	63.7 mm (2.5 in)	32 of 100 (Routine)
Sitio Sao Geraldo	Brazil	Record daily precipitation	62.1 mm (2.4 in)	32 of 100 (Routine)
Malpaso	Mexico	Record daily precipitation	35.8 mm (1.4 in)	32 of 100 (Routine)
Pearl	United States	Record low minimum temperature	-8.3 C (17.1 F)	32 of 100 (Routine)
Plainview	United States	Record low maximum temperature	2.2 C (36.0 F)	32 of 100 (Routine)
Iguatama	Brazil	Record daily precipitation	46.5 mm (1.8 in)	31 of 100 (Routine)
Buritizal	Brazil	Record daily precipitation	61.2 mm (2.4 in)	31 of 100 (Routine)
Sao Sebastiao da Grama	Brazil	Record daily precipitation	41.3 mm (1.6 in)	31 of 100 (Routine)
Aguas da Prata	Brazil	Record daily precipitation	64.3 mm (2.5 in)	31 of 100 (Routine)
Bueno de Andrada	Brazil	Record daily precipitation	54.2 mm (2.1 in)	31 of 100 (Routine)
Analandia	Brazil	Record daily precipitation	67.0 mm (2.6 in)	31 of 100 (Routine)
Huili	China	Record low maximum temperature	12.4 C (54.3 F)	31 of 100 (Routine)
Boca del Cerro	Mexico	Record daily precipitation	49.0 mm (1.9 in)	31 of 100 (Routine)
Loche	Mexico	Record daily precipitation	27.2 mm (1.1 in)	31 of 100 (Routine)
Stockton Fire STN 4	United States	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Portales	United States	Record low minimum temperature	-11.1 C (12.0 F)	31 of 100 (Routine)
Sao Jose da Bela Vista	Brazil	Record daily precipitation	61.8 mm (2.4 in)	30 of 100 (Routine)
Fairbanks Intl AP	United States	Record snow depth	129.5 cm (51.0 in)	30 of 100 (Routine)
Fazenda Cascata	Brazil	Record daily precipitation	32.1 mm (1.3 in)	29 of 100 (Routine)
Ibate	Brazil	Record daily precipitation	52.2 mm (2.1 in)	29 of 100 (Routine)
Peto (Dge)	Mexico	Record daily precipitation	37.8 mm (1.5 in)	29 of 100 (Routine)
Fazenda Barreirinho	Brazil	Record daily precipitation	44.7 mm (1.8 in)	28 of 100 (Routine)
Fazenda Belmonte	Brazil	Record daily precipitation	60.8 mm (2.4 in)	28 of 100 (Routine)
Santa Eudoxia	Brazil	Record daily precipitation	84.4 mm (3.3 in)	27 of 100 (Routine)
Nedstrand	Norway	Record daily precipitation	36.0 mm (1.4 in)	27 of 100 (Routine)
Orabah (Manilla (Warrabah))	Australia	Record daily precipitation	31.0 mm (1.2 in)	26 of 100 (Routine)

Counts by Type and Timescale

634 records

Records set or tied on 31 March 1991 by type: Highest daily maximum 56, Lowest daily maximum 134, Highest daily minimum 59, Lowest daily minimum 104, Heaviest daily rainfall 232, Heaviest daily snowfall 32, Deepest snow cover 17.

Records on 31 March 1991 by type
Record type	Records
Highest daily maximum	56
Lowest daily maximum	134
Highest daily minimum	59
Lowest daily minimum	104
Heaviest daily rainfall	232
Heaviest daily snowfall	32
Deepest snow cover	17

Records on 31 March 1991 by timescale: all-time 2, monthly 11, daily 621.

How Much Records Were Beaten By

499 broken records

Margins by which the 499 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 432.0. Ties are not counted.

Top 20 by Significance

31 March 1991

Top 20 records on 31 March 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 1991	Palermo, IT	daily rain	29.8 mm (1.2 in)	17.0 mm (0.7 in)	125 years	65 of 100 (Major)
31 March 1991	Combolcha, ET	all-time rain	192.0 mm (7.6 in)	81.0 mm (3.2 in)	1 year	63 of 100 (Major)
31 March 1991	Pirassununga, BR	daily rain	87.0 mm (3.4 in)	67.5 mm (2.7 in)	36 years	56 of 100 (Notable)
31 March 1991	Fazenda S.Joao Morro Vermelho, BR	daily rain	103.7 mm (4.1 in)	77.3 mm (3.0 in)	32 years	52 of 100 (Notable)
31 March 1991	Corumbatai, BR	daily rain	84.1 mm (3.3 in)	49.6 mm (2.0 in)	48 years	50 of 100 (Notable)
31 March 1991	Guaimbe, BR	daily rain	73.4 mm (2.9 in)	53.1 mm (2.1 in)	38 years	48 of 100 (Notable)
31 March 1991	Delungra (Craigmore), AU	daily rain	29.6 mm (1.2 in)	8.5 mm (0.33 in)	101 years	46 of 100 (Notable)
31 March 1991	Fazenda Monte Alegre, BR	daily rain	96.0 mm (3.8 in)	56.8 mm (2.2 in)	18 years	46 of 100 (Notable)
31 March 1991	Lagoa Branca, BR	daily rain	57.3 mm (2.3 in)	34.8 mm (1.4 in)	48 years	45 of 100 (Notable)
31 March 1991	El Progreso, MX	daily rain	46.0 mm (1.8 in)	40.2 mm (1.6 in)	21 years	45 of 100 (Notable)
31 March 1991	Cuyamaca, US	daily snow depth	35.6 cm (14.0 in)	22.9 cm (9.0 in)	64 years	44 of 100 (Notable)
31 March 1991	Visconde de Rio Claro, BR	daily rain	77.3 mm (3.0 in)	44.2 mm (1.7 in)	36 years	43 of 100 (Notable)
31 March 1991	Springer, US	daily low max	0.0 C (32.0 F)	4.4 C (7.9 F)	89 years	43 of 100 (Notable)
31 March 1991	San Luis San Pedro, MX	daily high max	40.6 C (105.1 F)	5.6 C (10.1 F)	22 years	42 of 100 (Notable)
31 March 1991	Upper Bingara (Emohta), AU	daily rain	46.9 mm (1.8 in)	28.6 mm (1.1 in)	40 years	39 of 100 (Notable)
31 March 1991	Cresciumal, BR	daily rain	65.5 mm (2.6 in)	37.1 mm (1.5 in)	34 years	39 of 100 (Notable)
31 March 1991	Newport, US	monthly high max	23.9 C (75.0 F)	1.7 C (3.1 F)	62 years	39 of 100 (Notable)
31 March 1991	Descalvado, BR	daily rain	78.3 mm (3.1 in)	38.3 mm (1.5 in)	22 years	38 of 100 (Notable)
31 March 1991	Usina Chibarro (Cpfl), BR	daily rain	58.5 mm (2.3 in)	40.8 mm (1.6 in)	17 years	38 of 100 (Notable)
31 March 1991	Kantunilkin, MX	daily rain	61.0 mm (2.4 in)	44.7 mm (1.8 in)	21 years	37 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

1808 to 1991

Records set or tied on this calendar date in each year from 1808 to 1991. 1991 had 634 records.

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

Records on 03-31 in each year
Year	Records
1808	2
1815	2
1843	1
1848	1
1850	1
1854	1
1855	3
1856	2
1859	3
1865	2
1869	1
1872	4
1873	1
1874	1
1876	1
1878	1
1880	2
1881	1
1883	1
1887	2
1889	1
1890	1
1891	1
1892	2
1893	3
1896	3
1897	2
1898	5
1899	3
1900	9
1901	7
1902	3
1903	14
1904	16
1905	29
1906	10
1907	11
1908	5
1909	4
1910	45
1911	24
1912	18
1913	62
1914	16
1915	57
1916	17
1917	52
1918	42
1919	86
1920	65
1921	238
1922	102
1923	459
1924	160
1925	110
1926	306
1927	198
1928	98
1929	323
1930	137
1931	365
1932	360
1933	311
1934	181
1935	310
1936	1,242
1937	258
1938	649
1939	197
1940	697
1941	250
1942	245
1943	794
1944	327
1945	778
1946	897
1947	658
1948	355
1949	452
1950	579
1951	490
1952	382
1953	302
1954	549
1955	286
1956	767
1957	373
1958	414
1959	622
1960	327
1961	525
1962	547
1963	987
1964	1,345
1965	457
1966	845
1967	1,025
1968	504
1969	1,126
1970	945
1971	516
1972	427
1973	755
1974	852
1975	1,032
1976	519
1977	1,021
1978	1,362
1979	722
1980	640
1981	1,060
1982	926
1983	564
1984	532
1985	1,471
1986	1,507
1987	2,256
1988	850
1989	1,335
1990	842
1991	634
1992	747
1993	668
1994	871
1995	940
1996	743
1997	962
1998	2,587
1999	1,100
2000	581
2001	686
2002	861
2003	1,722
2004	1,055
2005	861
2006	1,088
2007	1,150
2008	1,471
2009	927
2010	984
2011	1,020
2012	942
2013	753
2014	631
2015	861
2016	823
2017	1,423
2018	663
2019	544
2020	534
2021	949
2022	683
2023	1,128
2024	488
2025	942
2026	1,275

Download the Data

Data for records on 1991-03-31: 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 100	492
100 to 200	2
200 to 300	3
300 to 400	1
400 to 500	1