Weather Records on 4 May 2018

972 weather records were set or tied worldwide on 4 May 2018. Highest significance: New Hampton, US.

Key Facts for 4 May 2018

On 4 May 2018, 972 weather records were set or tied at long-record stations worldwide.
635 were record highs and 37 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 957 daily.
New Hampton set a daily record precipitation of 81.3 mm (3.2 in) on 4 May 2018.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 427 records.

Record Map

972 stations

972 station records on 4 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
New Hampton	United States	Record daily precipitation	81.3 mm (3.2 in)	77 of 100 (Major)
Osage	United States	Record daily precipitation	76.2 mm (3.0 in)	74 of 100 (Major)
Fond du Lac Wwtp	United States	Record daily precipitation	69.9 mm (2.8 in)	71 of 100 (Major)
Letalisce Edvarda Rusjana Mari	Slovenia	Record daily precipitation	133.3 mm (5.2 in)	68 of 100 (Major)
Cresco 1 NE	United States	Record daily precipitation	59.2 mm (2.3 in)	65 of 100 (Major)
Waihee Vly 482	United States	Record daily precipitation	69.9 mm (2.8 in)	62 of 100 (Major)
Snowtown (Banyula)	Australia	Record daily precipitation	32.2 mm (1.3 in)	59 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record high minimum temperature	26.1 C (79.0 F)	59 of 100 (Notable)
Decorah	United States	Record daily precipitation	95.3 mm (3.8 in)	59 of 100 (Notable)
Charlevoix	United States	Record daily precipitation	50.3 mm (2.0 in)	57 of 100 (Notable)
Chilton	United States	Record daily precipitation	87.1 mm (3.4 in)	55 of 100 (Notable)
Oshkosh	United States	Record daily precipitation	71.1 mm (2.8 in)	55 of 100 (Notable)
Portage Wwtp	United States	Record daily precipitation	64.0 mm (2.5 in)	55 of 100 (Notable)
Beaver Dam Wwtp	United States	Record daily precipitation	45.7 mm (1.8 in)	54 of 100 (Notable)
Viroqua	United States	Record daily precipitation	65.8 mm (2.6 in)	54 of 100 (Notable)
Cooper Lake	United States	Record daily precipitation	33.0 mm (1.3 in)	54 of 100 (Notable)
Rio Verde S.L.P.	Mexico	Record daily precipitation	50.8 mm (2.0 in)	53 of 100 (Notable)
E Jordan	United States	Record daily precipitation	50.0 mm (2.0 in)	53 of 100 (Notable)
Brownwood 2NE	United States	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Manitowoc	United States	Record daily precipitation	38.9 mm (1.5 in)	53 of 100 (Notable)
Penola Post Office	Australia	Record daily precipitation	38.8 mm (1.5 in)	52 of 100 (Notable)
Drik Drik	Australia	Record daily precipitation	30.4 mm (1.2 in)	52 of 100 (Notable)
Tyumen Amsg	Russia	Record daily precipitation	31.1 mm (1.2 in)	52 of 100 (Notable)
Rocksprings	United States	Record daily precipitation	52.1 mm (2.1 in)	52 of 100 (Notable)
Mauston 1 SE	United States	Record daily precipitation	65.3 mm (2.6 in)	52 of 100 (Notable)
Eleele 927	United States	Record daily precipitation	26.9 mm (1.1 in)	52 of 100 (Notable)
Wahiawa 930	United States	Record daily precipitation	32.0 mm (1.3 in)	51 of 100 (Notable)
Reedsburg Wwtp	United States	Record daily precipitation	68.8 mm (2.7 in)	50 of 100 (Notable)
Avenue (Downer)	Australia	Record daily precipitation	34.2 mm (1.3 in)	49 of 100 (Notable)
Coonawarra	Australia	Record daily precipitation	29.0 mm (1.1 in)	49 of 100 (Notable)
Cape Bridgewater	Australia	Record daily precipitation	29.6 mm (1.2 in)	49 of 100 (Notable)
Arlington	United States	Record daily precipitation	57.2 mm (2.3 in)	49 of 100 (Notable)
Lynxville Dam 9	United States	Record daily precipitation	57.9 mm (2.3 in)	49 of 100 (Notable)
Wisconsin Dells Wwtp	United States	Record daily precipitation	63.0 mm (2.5 in)	49 of 100 (Notable)
Charles City	United States	Record daily precipitation	66.3 mm (2.6 in)	48 of 100 (Notable)
Indianola 1SW	United States	Record daily precipitation	46.2 mm (1.8 in)	48 of 100 (Notable)
Genoa Dam 8	United States	Record daily precipitation	62.0 mm (2.4 in)	48 of 100 (Notable)
Salt Creek (Pitlochry Homestea	Australia	Record daily precipitation	25.0 mm (1.0 in)	47 of 100 (Notable)
Liberty 1 NE	United States	Record high minimum temperature	15.6 C (60.1 F)	47 of 100 (Notable)
W Pt	United States	Record high minimum temperature	18.9 C (66.0 F)	47 of 100 (Notable)
Circleville	United States	Record high minimum temperature	21.7 C (71.1 F)	47 of 100 (Notable)
Lehigh 4 SW	United States	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
Baraboo Wwtp	United States	Record daily precipitation	55.1 mm (2.2 in)	47 of 100 (Notable)
Mather 3 NW	United States	Record daily precipitation	35.3 mm (1.4 in)	47 of 100 (Notable)
Trempealeau Dam 6	United States	Record daily precipitation	39.9 mm (1.6 in)	47 of 100 (Notable)
Hale Loud Dam	United States	Record daily precipitation	32.3 mm (1.3 in)	46 of 100 (Notable)
Bute	Australia	Record daily precipitation	28.2 mm (1.1 in)	45 of 100 (Notable)
Middleboro	United States	Record high maximum temperature	30.0 C (86.0 F)	45 of 100 (Notable)
Kewaunee	United States	Record daily precipitation	68.6 mm (2.7 in)	45 of 100 (Notable)
Cadillac	United States	Record daily precipitation	40.6 mm (1.6 in)	45 of 100 (Notable)
Pellston Rgnl AP	United States	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Storrs	United States	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Mason City	United States	Record daily precipitation	67.3 mm (2.6 in)	44 of 100 (Notable)
Hopkinsville	United States	Record high minimum temperature	20.0 C (68.0 F)	44 of 100 (Notable)
Petoskey	United States	Record daily precipitation	45.7 mm (1.8 in)	44 of 100 (Notable)
Pocahontas	United States	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
Standish 4NE	United States	Record daily precipitation	26.7 mm (1.1 in)	43 of 100 (Notable)
Grand Meadow	United States	Record daily precipitation	36.3 mm (1.4 in)	43 of 100 (Notable)
Cape May 2 NW	United States	Record high minimum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Waverly	United States	Record high minimum temperature	18.9 C (66.0 F)	43 of 100 (Notable)

Counts by Type and Timescale

972 records

Records set or tied on 4 May 2018 by type: Highest daily maximum 218, Lowest daily maximum 8, Highest daily minimum 417, Lowest daily minimum 29, Heaviest daily rainfall 298, Deepest snow cover 2.

Records on 4 May 2018 by type
Record type	Records
Highest daily maximum	218
Lowest daily maximum	8
Highest daily minimum	417
Lowest daily minimum	29
Heaviest daily rainfall	298
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 4 May 2018 by timescale: all-time 1, monthly 14, daily 957.

How Much Records Were Beaten By

818 broken records

Margins by which the 818 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.2. Ties are not counted.

Top 20 by Significance

4 May 2018

Top 20 records on 4 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 2018	New Hampton, US	daily rain	81.3 mm (3.2 in)	45.2 mm (1.8 in)	116 years	77 of 100 (Major)
4 May 2018	Osage, US	daily rain	76.2 mm (3.0 in)	41.9 mm (1.6 in)	104 years	74 of 100 (Major)
4 May 2018	Fond du Lac Wwtp, US	daily rain	69.9 mm (2.8 in)	53.6 mm (2.1 in)	72 years	71 of 100 (Major)
4 May 2018	Letalisce Edvarda Rusjana Mari, SI	all-time rain	133.3 mm (5.2 in)	31.3 mm (1.2 in)	37 years	68 of 100 (Major)
4 May 2018	Cresco 1 NE, US	daily rain	59.2 mm (2.3 in)	26.7 mm (1.1 in)	122 years	65 of 100 (Major)
4 May 2018	Waihee Vly 482, US	daily rain	69.9 mm (2.8 in)	42.5 mm (1.7 in)	65 years	62 of 100 (Major)
4 May 2018	Snowtown (Banyula), AU	daily rain	32.2 mm (1.3 in)	22.5 mm (0.9 in)	47 years	59 of 100 (Notable)
4 May 2018	Isabela Substn, PR	daily high min	26.1 C (79.0 F)	2.8 C (5.0 F)	104 years	59 of 100 (Notable)
4 May 2018	Decorah, US	monthly rain	95.3 mm (3.8 in)	10.2 mm (0.4 in)	115 years	59 of 100 (Notable)
4 May 2018	Charlevoix, US	daily rain	50.3 mm (2.0 in)	30.0 mm (1.2 in)	43 years	57 of 100 (Notable)
4 May 2018	Chilton, US	daily rain	87.1 mm (3.4 in)	60.2 mm (2.4 in)	16 years	55 of 100 (Notable)
4 May 2018	Oshkosh, US	daily rain	71.1 mm (2.8 in)	43.7 mm (1.7 in)	16 years	55 of 100 (Notable)
4 May 2018	Portage Wwtp, US	daily rain	64.0 mm (2.5 in)	43.4 mm (1.7 in)	16 years	55 of 100 (Notable)
4 May 2018	Beaver Dam Wwtp, US	daily rain	45.7 mm (1.8 in)	25.4 mm (1.0 in)	68 years	54 of 100 (Notable)
4 May 2018	Viroqua, US	daily rain	65.8 mm (2.6 in)	16.3 mm (0.6 in)	104 years	54 of 100 (Notable)
4 May 2018	Cooper Lake, US	monthly rain	33.0 mm (1.3 in)	10.1 mm (0.4 in)	26 years	54 of 100 (Notable)
4 May 2018	Rio Verde S.L.P., MX	daily rain	50.8 mm (2.0 in)	46.7 mm (1.8 in)	37 years	53 of 100 (Notable)
4 May 2018	E Jordan, US	daily rain	50.0 mm (2.0 in)	32.7 mm (1.3 in)	16 years	53 of 100 (Notable)
4 May 2018	Brownwood 2NE, US	daily rain	71.1 mm (2.8 in)	21.6 mm (0.9 in)	104 years	53 of 100 (Notable)
4 May 2018	Manitowoc, US	daily rain	38.9 mm (1.5 in)	21.6 mm (0.9 in)	72 years	53 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

1795 to 2018

Records set or tied on this calendar date in each year from 1795 to 2018. 2018 had 972 records.

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

Records on 05-04 in each year
Year	Records
1795	1
1796	1
1820	1
1836	2
1840	1
1847	1
1850	2
1851	2
1852	1
1856	3
1858	1
1859	1
1861	2
1862	1
1864	3
1865	2
1868	3
1869	1
1870	2
1875	1
1877	2
1878	1
1879	1
1880	1
1882	1
1885	1
1886	1
1888	1
1889	4
1890	1
1892	4
1893	3
1894	6
1895	3
1896	3
1897	2
1898	2
1899	2
1900	2
1902	5
1903	8
1904	8
1905	19
1906	5
1907	37
1908	18
1909	13
1910	14
1911	37
1912	12
1913	63
1914	21
1915	75
1916	57
1917	60
1918	30
1919	69
1920	43
1921	62
1922	283
1923	82
1924	88
1925	80
1926	230
1927	112
1928	205
1929	177
1930	269
1931	169
1932	104
1933	274
1934	456
1935	518
1936	313
1937	230
1938	445
1939	295
1940	602
1941	436
1942	820
1943	358
1944	872
1945	654
1946	463
1947	649
1948	578
1949	1,130
1950	953
1951	292
1952	698
1953	389
1954	1,045
1955	471
1956	433
1957	433
1958	414
1959	613
1960	443
1961	466
1962	265
1963	313
1964	570
1965	433
1966	1,113
1967	928
1968	304
1969	377
1970	454
1971	810
1972	364
1973	313
1974	367
1975	683
1976	554
1977	736
1978	1,016
1979	1,529
1980	511
1981	667
1982	591
1983	539
1984	885
1985	821
1986	1,128
1987	1,004
1988	591
1989	743
1990	1,461
1991	1,088
1992	933
1993	791
1994	821
1995	974
1996	1,298
1997	962
1998	898
1999	1,167
2000	1,398
2001	1,345
2002	1,343
2003	1,158
2004	1,341
2005	1,152
2006	650
2007	699
2008	624
2009	727
2010	999
2011	1,023
2012	1,343
2013	1,447
2014	602
2015	622
2016	463
2017	669
2018	972
2019	574
2020	504
2021	616
2022	470
2023	681
2024	885
2025	456
2026	554

Download the Data

Data for records on 2018-05-04: 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 10	711
10 to 20	57
20 to 30	23
30 to 40	13
40 to 50	11
50 to 60	2
60 to 70	1