Weather Records on 1 April 1999

1,341 weather records were set or tied worldwide on 1 April 1999. Highest significance: Grafton, US.

Key Facts for 1 April 1999

On 1 April 1999, 1,341 weather records were set or tied at long-record stations worldwide.
488 were record highs and 326 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 93 monthly and 1,244 daily.
Grafton set a daily record precipitation of 37.8 mm (1.5 in) on 1 April 1999.
Across 160 earlier years (1803 to 2026) the same calendar date averaged 472 records.

Record Map

1,341 stations

1,341 station records on 1 April 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 April 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Grafton	United States	Record daily precipitation	37.8 mm (1.5 in)	64 of 100 (Major)
Medina	United States	Record daily precipitation	36.1 mm (1.4 in)	61 of 100 (Major)
New England	United States	Record daily snowfall	25.4 cm (10.0 in)	60 of 100 (Major)
Utah Lake Lehi	United States	Record daily snowfall	15.2 cm (6.0 in)	59 of 100 (Notable)
Leeds	United States	Record daily precipitation	48.3 mm (1.9 in)	58 of 100 (Notable)
Leeds	United States	Record daily snowfall	24.1 cm (9.5 in)	58 of 100 (Notable)
Bismarck	United States	Record daily snowfall	22.9 cm (9.0 in)	58 of 100 (Notable)
Cold Bay AP	United States	Record snow depth	68.6 cm (27.0 in)	58 of 100 (Notable)
Highlands	United States	Record daily precipitation	98.6 mm (3.9 in)	56 of 100 (Notable)
Lakeview 2 NNW	United States	Record daily snowfall	20.3 cm (8.0 in)	56 of 100 (Notable)
Reeder 13 N	United States	Record daily snowfall	16.5 cm (6.5 in)	55 of 100 (Notable)
Farson 2NNE	United States	Record daily snowfall	15.2 cm (6.0 in)	55 of 100 (Notable)
Tucson Intl AP	United States	Record daily precipitation	29.7 mm (1.2 in)	55 of 100 (Notable)
Velva	United States	Record daily snowfall	30.5 cm (12.0 in)	54 of 100 (Notable)
Valdez WSO	United States	Record daily snowfall	69.3 cm (27.3 in)	54 of 100 (Notable)
Ogden Pioneer Ph	United States	Record daily snowfall	20.3 cm (8.0 in)	53 of 100 (Notable)
Farson 2NNE	United States	Record snow depth	15.2 cm (6.0 in)	53 of 100 (Notable)
Bowman	United States	Record daily snowfall	20.3 cm (8.0 in)	52 of 100 (Notable)
Mc Intosh 6 SE	United States	Record daily snowfall	17.8 cm (7.0 in)	52 of 100 (Notable)
Echeta 2 NW	United States	Record daily snowfall	30.5 cm (12.0 in)	52 of 100 (Notable)
Green Rvr	United States	Record snow depth	10.2 cm (4.0 in)	52 of 100 (Notable)
Dickinson Theodore Roosevelt R	United States	Record daily snowfall	21.3 cm (8.4 in)	52 of 100 (Notable)
Happy Jack Rs	United States	Record daily snowfall	38.1 cm (15.0 in)	51 of 100 (Notable)
Leola	United States	Record daily precipitation	35.8 mm (1.4 in)	51 of 100 (Notable)
Ludlow 3 SSE	United States	Record daily precipitation	31.5 mm (1.2 in)	51 of 100 (Notable)
Vigra	Norway	Record daily precipitation	43.7 mm (1.7 in)	50 of 100 (Notable)
Idaho City	United States	Record low maximum temperature	1.7 C (35.1 F)	50 of 100 (Notable)
Plevna	United States	Record daily snowfall	11.7 cm (4.6 in)	50 of 100 (Notable)
Gackle	United States	Record daily precipitation	33.0 mm (1.3 in)	50 of 100 (Notable)
Grafton	United States	Record daily snowfall	15.2 cm (6.0 in)	50 of 100 (Notable)
Green Rvr	United States	Record daily snowfall	14.0 cm (5.5 in)	50 of 100 (Notable)
Moorcroft 3S	United States	Record daily snowfall	17.8 cm (7.0 in)	50 of 100 (Notable)
Ralph 1 N	United States	Record daily snowfall	24.4 cm (9.6 in)	49 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	17.4 C (63.3 F)	48 of 100 (Notable)
Wibaux 2 E	United States	Record daily snowfall	5.1 cm (2.0 in)	48 of 100 (Notable)
Alpine	United States	Record daily snowfall	21.6 cm (8.5 in)	48 of 100 (Notable)
Oracle 2 SE	United States	Record daily snowfall	14.0 cm (5.5 in)	47 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	22.8 C (73.0 F)	47 of 100 (Notable)
Superior	United States	Record high minimum temperature	12.8 C (55.0 F)	47 of 100 (Notable)
Reeder	United States	Record daily snowfall	22.9 cm (9.0 in)	47 of 100 (Notable)
Clemson UNIV	United States	Record daily precipitation	53.8 mm (2.1 in)	47 of 100 (Notable)
Belle Fourche	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Tremonton	United States	Record daily snowfall	7.1 cm (2.8 in)	47 of 100 (Notable)
Emmett 2 E	United States	Record low maximum temperature	3.3 C (37.9 F)	46 of 100 (Notable)
Muddy Gap	United States	Record daily precipitation	26.7 mm (1.1 in)	46 of 100 (Notable)
Vestervig	Denmark	Record high maximum temperature	17.8 C (64.0 F)	45 of 100 (Notable)
Bison	United States	Record daily snowfall	20.3 cm (8.0 in)	45 of 100 (Notable)
Tensleep 4NE	United States	Record daily snowfall	17.8 cm (7.0 in)	45 of 100 (Notable)
Escanaba	United States	Record high minimum temperature	6.1 C (43.0 F)	45 of 100 (Notable)
Warrumbungle (Cheddington)	Australia	Record daily precipitation	39.0 mm (1.5 in)	44 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	19.0 C (66.2 F)	44 of 100 (Notable)
Winnebago	United States	Record high minimum temperature	9.4 C (48.9 F)	44 of 100 (Notable)
Knobs 4 SW	United States	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Harvey 4NE	United States	Record daily snowfall	22.9 cm (9.0 in)	44 of 100 (Notable)
Pretty Rock	United States	Record daily precipitation	25.9 mm (1.0 in)	44 of 100 (Notable)
Redig 11 NE	United States	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Mullaley (Garrawilla)	Australia	Record daily precipitation	51.0 mm (2.0 in)	43 of 100 (Notable)
Carrington 4 N	United States	Record daily precipitation	40.4 mm (1.6 in)	43 of 100 (Notable)
Pleasant Grove	United States	Record daily snowfall	35.6 cm (14.0 in)	43 of 100 (Notable)
Muddy Gap	United States	Record snow depth	55.9 cm (22.0 in)	43 of 100 (Notable)

Counts by Type and Timescale

1,341 records

Records set or tied on 1 April 1999 by type: Highest daily maximum 187, Lowest daily maximum 208, Highest daily minimum 301, Lowest daily minimum 118, Heaviest daily rainfall 280, Heaviest daily snowfall 173, Deepest snow cover 74.

Records on 1 April 1999 by type
Record type	Records
Highest daily maximum	187
Lowest daily maximum	208
Highest daily minimum	301
Lowest daily minimum	118
Heaviest daily rainfall	280
Heaviest daily snowfall	173
Deepest snow cover	74

Records on 1 April 1999 by timescale: all-time 4, monthly 93, daily 1,244.

How Much Records Were Beaten By

1,093 broken records

Margins by which the 1,093 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

1 April 1999

Top 20 records on 1 April 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 April 1999	Grafton, US	daily rain	37.8 mm (1.5 in)	28.1 mm (1.1 in)	64 years	64 of 100 (Major)
1 April 1999	Medina, US	daily rain	36.1 mm (1.4 in)	31.0 mm (1.2 in)	40 years	61 of 100 (Major)
1 April 1999	New England, US	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	90 years	60 of 100 (Major)
1 April 1999	Utah Lake Lehi, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	60 years	59 of 100 (Notable)
1 April 1999	Leeds, US	daily rain	48.3 mm (1.9 in)	30.0 mm (1.2 in)	40 years	58 of 100 (Notable)
1 April 1999	Leeds, US	daily snowfall	24.1 cm (9.5 in)	21.6 cm (8.5 in)	53 years	58 of 100 (Notable)
1 April 1999	Bismarck, US	daily snowfall	22.9 cm (9.0 in)	21.6 cm (8.5 in)	44 years	58 of 100 (Notable)
1 April 1999	Cold Bay AP, US	monthly snow depth	68.6 cm (27.0 in)	43.2 cm (17.0 in)	10 years	58 of 100 (Notable)
1 April 1999	Highlands, US	daily rain	98.6 mm (3.9 in)	55.2 mm (2.2 in)	62 years	56 of 100 (Notable)
1 April 1999	Lakeview 2 NNW, US	daily snowfall	20.3 cm (8.0 in)	10.1 cm (4.0 in)	72 years	56 of 100 (Notable)
1 April 1999	Reeder 13 N, US	daily snowfall	16.5 cm (6.5 in)	16.5 cm (6.5 in)	48 years	55 of 100 (Notable)
1 April 1999	Farson 2NNE, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	72 years	55 of 100 (Notable)
1 April 1999	Tucson Intl AP, US	monthly rain	29.7 mm (1.2 in)	10.9 mm (0.4 in)	46 years	55 of 100 (Notable)
1 April 1999	Velva, US	daily snowfall	30.5 cm (12.0 in)	25.4 cm (10.0 in)	58 years	54 of 100 (Notable)
1 April 1999	Valdez WSO, US	daily snowfall	69.3 cm (27.3 in)	41.1 cm (16.2 in)	21 years	54 of 100 (Notable)
1 April 1999	Ogden Pioneer Ph, US	monthly snowfall	20.3 cm (8.0 in)	3.8 cm (1.5 in)	92 years	53 of 100 (Notable)
1 April 1999	Farson 2NNE, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	49 years	53 of 100 (Notable)
1 April 1999	Bowman, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	53 years	52 of 100 (Notable)
1 April 1999	Mc Intosh 6 SE, US	daily snowfall	17.8 cm (7.0 in)	14.0 cm (5.5 in)	41 years	52 of 100 (Notable)
1 April 1999	Echeta 2 NW, US	daily snowfall	30.5 cm (12.0 in)	25.4 cm (10.0 in)	24 years	52 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

1803 to 1999

Records set or tied on this calendar date in each year from 1803 to 1999. 1999 had 1,341 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 1999-04-01: 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).

Histogram of margins by which records were beaten on 1 April 1999
Margin	Records
0 to 100	1,029
100 to 200	51
200 to 300	10
300 to 400	1
400 to 500	2