Weather Records on 17 April 1991

614 weather records were set or tied worldwide on 17 April 1991. Highest significance: Gibson 2 NE, US.

Key Facts for 17 April 1991

On 17 April 1991, 614 weather records were set or tied at long-record stations worldwide.
325 were record highs and 109 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 14 monthly and 594 daily.
Gibson 2 NE set a daily record snow depth of 35.6 cm (14.0 in) on 17 April 1991.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 452 records.

Record Map

614 stations

614 station records on 17 April 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gibson 2 NE	United States	Record snow depth	35.6 cm (14.0 in)	52 of 100 (Notable)
Shijiazhuang	China	Record daily precipitation	37.6 mm (1.5 in)	50 of 100 (Notable)
Live Oak	United States	Record daily precipitation	39.9 mm (1.6 in)	48 of 100 (Notable)
Toledo Blade	United States	Record daily precipitation	44.5 mm (1.8 in)	48 of 100 (Notable)
Mokpo	Korea, South	Record daily precipitation	88.0 mm (3.5 in)	47 of 100 (Notable)
Amity 4 NE	United States	Record daily precipitation	78.7 mm (3.1 in)	47 of 100 (Notable)
Mystic Lake	United States	Record snow depth	139.7 cm (55.0 in)	46 of 100 (Notable)
Riversul	Brazil	Record daily precipitation	58.5 mm (2.3 in)	44 of 100 (Notable)
Milan	Italy	Record low minimum temperature	0.4 C (32.7 F)	43 of 100 (Notable)
Adak AP	United States	Record daily precipitation	41.1 mm (1.6 in)	43 of 100 (Notable)
Ponca City Muni AP	United States	Record daily precipitation	43.7 mm (1.7 in)	42 of 100 (Notable)
Instituto Biologico	Brazil	Record daily precipitation	84.5 mm (3.3 in)	41 of 100 (Notable)
Ozone	United States	Record daily precipitation	99.1 mm (3.9 in)	41 of 100 (Notable)
Deland 1 SSE	United States	Record daily precipitation	38.1 mm (1.5 in)	41 of 100 (Notable)
Shreveport	United States	Record daily precipitation	94.0 mm (3.7 in)	41 of 100 (Notable)
Lakeland Linder Rgnl AP	United States	Record daily precipitation	37.3 mm (1.5 in)	40 of 100 (Notable)
Cangucu	Brazil	Record daily precipitation	117.0 mm (4.6 in)	39 of 100 (Notable)
Newington	United States	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Conception	United States	Record daily precipitation	48.8 mm (1.9 in)	38 of 100 (Notable)
Red Lodge	United States	Record snow depth	162.6 cm (64.0 in)	38 of 100 (Notable)
San Simon	United States	Record low minimum temperature	-1.7 C (28.9 F)	37 of 100 (Notable)
Tianjin	China	Record daily precipitation	26.6 mm (1.0 in)	36 of 100 (Notable)
Saentis	Switzerland	Record low minimum temperature	-15.3 C (4.5 F)	36 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record low minimum temperature	-1.6 C (29.1 F)	35 of 100 (Notable)
Hampton 1S	United States	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Poronajsk	Russia	Record high minimum temperature	3.4 C (38.1 F)	34 of 100 (Routine)
Darlington	United States	Record high minimum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Barao de Antonina	Brazil	Record daily precipitation	40.1 mm (1.6 in)	33 of 100 (Routine)
Gritador	Brazil	Record daily precipitation	32.6 mm (1.3 in)	32 of 100 (Routine)
Minatitlan	Mexico	Record high maximum temperature	40.0 C (104.0 F)	32 of 100 (Routine)
Kirov	Russia	Record high minimum temperature	6.6 C (43.9 F)	32 of 100 (Routine)
Titusville	United States	Record daily precipitation	27.7 mm (1.1 in)	32 of 100 (Routine)
Midville	United States	Record daily precipitation	47.0 mm (1.9 in)	31 of 100 (Routine)
Cody	United States	Record snow depth	15.2 cm (6.0 in)	31 of 100 (Routine)
Ternej	Russia	Record high maximum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Katy City	United States	Record daily precipitation	116.1 mm (4.6 in)	30 of 100 (Routine)
Concordia	Brazil	Record daily precipitation	60.2 mm (2.4 in)	29 of 100 (Routine)
Pogranichnyj	Russia	Record high maximum temperature	24.1 C (75.4 F)	29 of 100 (Routine)
Orono	United States	Record low maximum temperature	2.2 C (36.0 F)	29 of 100 (Routine)
Sao Paulo (Aeroport	Brazil	Record daily precipitation	42.8 mm (1.7 in)	28 of 100 (Routine)
Gibson Dam	United States	Record daily snowfall	20.3 cm (8.0 in)	28 of 100 (Routine)
Ponta Grossa-Vila Velha	Brazil	Record daily precipitation	32.2 mm (1.3 in)	27 of 100 (Routine)
Tromso	Norway	Record low maximum temperature	-2.9 C (26.8 F)	27 of 100 (Routine)
Ft Green 12 WSW	United States	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Coleman	United States	Record high minimum temperature	20.6 C (69.1 F)	27 of 100 (Routine)
Joplin Rgnl AP	United States	Record daily precipitation	40.1 mm (1.6 in)	27 of 100 (Routine)
Huoshan	China	Record daily precipitation	70.1 mm (2.8 in)	26 of 100 (Routine)
Escuintla (Dge)	Mexico	Record low maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)
Sunndalsora III	Norway	Record snow depth	15.0 cm (5.9 in)	26 of 100 (Routine)
Mae Hong Son	Thailand	Record high maximum temperature	43.0 C (109.4 F)	26 of 100 (Routine)
Yongan	China	Record high minimum temperature	24.0 C (75.2 F)	25 of 100 (Routine)
Stephenville Clark Fld	United States	Record daily precipitation	42.9 mm (1.7 in)	25 of 100 (Routine)
Shemya USAF Base	United States	Record high maximum temperature	6.1 C (43.0 F)	25 of 100 (Routine)
Taiyuan	China	Record daily precipitation	32.2 mm (1.3 in)	24 of 100 (Routine)
Wuhan	China	Record daily precipitation	94.0 mm (3.7 in)	24 of 100 (Routine)
Uttaradit	Thailand	Record high minimum temperature	28.2 C (82.8 F)	24 of 100 (Routine)
Sedgwick	United States	Record daily precipitation	51.1 mm (2.0 in)	24 of 100 (Routine)
Clover Valley	United States	Record low maximum temperature	5.0 C (41.0 F)	24 of 100 (Routine)
Barra Do Capinzal	Brazil	Record daily precipitation	62.5 mm (2.5 in)	23 of 100 (Routine)
Knin	Croatia	Record daily precipitation	35.8 mm (1.4 in)	23 of 100 (Routine)

Counts by Type and Timescale

614 records

Records set or tied on 17 April 1991 by type: Highest daily maximum 129, Lowest daily maximum 54, Highest daily minimum 196, Lowest daily minimum 55, Heaviest daily rainfall 148, Heaviest daily snowfall 6, Deepest snow cover 26.

Records on 17 April 1991 by type
Record type	Records
Highest daily maximum	129
Lowest daily maximum	54
Highest daily minimum	196
Lowest daily minimum	55
Heaviest daily rainfall	148
Heaviest daily snowfall	6
Deepest snow cover	26

Records on 17 April 1991 by timescale: all-time 6, monthly 14, daily 594.

How Much Records Were Beaten By

452 broken records

Margins by which the 452 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 660.0. Ties are not counted.

Top 20 by Significance

17 April 1991

Top 20 records on 17 April 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1991	Gibson 2 NE, US	daily snow depth	35.6 cm (14.0 in)	35.6 cm (14.0 in)	38 years	52 of 100 (Notable)
17 April 1991	Shijiazhuang, CN	daily rain	37.6 mm (1.5 in)	37.1 mm (1.5 in)	25 years	50 of 100 (Notable)
17 April 1991	Live Oak, US	daily rain	39.9 mm (1.6 in)	32.3 mm (1.3 in)	82 years	48 of 100 (Notable)
17 April 1991	Toledo Blade, US	daily rain	44.5 mm (1.8 in)	15.3 mm (0.6 in)	69 years	48 of 100 (Notable)
17 April 1991	Mokpo, KR	daily rain	88.0 mm (3.5 in)	50.0 mm (2.0 in)	20 years	47 of 100 (Notable)
17 April 1991	Amity 4 NE, US	daily rain	78.7 mm (3.1 in)	44.4 mm (1.7 in)	14 years	47 of 100 (Notable)
17 April 1991	Mystic Lake, US	daily snow depth	139.7 cm (55.0 in)	66.0 cm (26.0 in)	16 years	46 of 100 (Notable)
17 April 1991	Riversul, BR	daily rain	58.5 mm (2.3 in)	49.4 mm (1.9 in)	14 years	44 of 100 (Notable)
17 April 1991	Milan, IT	daily low min	0.4 C (32.7 F)	0.9 C (1.6 F)	113 years	43 of 100 (Notable)
17 April 1991	Adak AP, US	daily rain	41.1 mm (1.6 in)	26.6 mm (1.0 in)	13 years	43 of 100 (Notable)
17 April 1991	Ponca City Muni AP, US	daily rain	43.7 mm (1.7 in)	33.3 mm (1.3 in)	32 years	42 of 100 (Notable)
17 April 1991	Instituto Biologico, BR	monthly rain	84.5 mm (3.3 in)	19.4 mm (0.8 in)	34 years	41 of 100 (Notable)
17 April 1991	Ozone, US	daily rain	99.1 mm (3.9 in)	53.4 mm (2.1 in)	0 years	41 of 100 (Notable)
17 April 1991	Deland 1 SSE, US	daily rain	38.1 mm (1.5 in)	25.4 mm (1.0 in)	56 years	41 of 100 (Notable)
17 April 1991	Shreveport, US	daily rain	94.0 mm (3.7 in)	41.7 mm (1.6 in)	48 years	41 of 100 (Notable)
17 April 1991	Lakeland Linder Rgnl AP, US	daily rain	37.3 mm (1.5 in)	36.8 mm (1.4 in)	36 years	40 of 100 (Notable)
17 April 1991	Cangucu, BR	monthly rain	117.0 mm (4.6 in)	27.0 mm (1.1 in)	32 years	39 of 100 (Notable)
17 April 1991	Newington, US	daily rain	45.0 mm (1.8 in)	44.5 mm (1.8 in)	21 years	39 of 100 (Notable)
17 April 1991	Conception, US	daily rain	48.8 mm (1.9 in)	14.3 mm (0.6 in)	50 years	38 of 100 (Notable)
17 April 1991	Red Lodge, US	all-time snow depth	162.6 cm (64.0 in)	7.7 cm (3.0 in)	23 years	38 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

1799 to 1991

Records set or tied on this calendar date in each year from 1799 to 1991. 1991 had 614 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 1991-04-17: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	445
100 to 200	4
200 to 300	1
300 to 400	1
400 to 500	0
500 to 600	0
600 to 700	1