Weather Records on 4 May 1950

953 weather records were set or tied worldwide on 4 May 1950. Highest significance: Poortjie, ZA.

Key Facts for 4 May 1950

On 4 May 1950, 953 weather records were set or tied at long-record stations worldwide.
300 were record highs and 448 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 54 monthly and 899 daily.
Poortjie set a monthly record daily precipitation of 76.2 mm (3.0 in) on 4 May 1950.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 427 records.

Record Map

953 stations

953 station records on 4 May 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
Poortjie	South Africa	Record daily precipitation	76.2 mm (3.0 in)	61 of 100 (Major)
Camp Crook	United States	Record daily snowfall	25.4 cm (10.0 in)	61 of 100 (Major)
Bothaville (Mun)	South Africa	Record daily precipitation	33.8 mm (1.3 in)	50 of 100 (Notable)
Doornbult	South Africa	Record daily precipitation	44.5 mm (1.8 in)	48 of 100 (Notable)
Tweespruit	South Africa	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Nelsdrift	South Africa	Record daily precipitation	33.5 mm (1.3 in)	45 of 100 (Notable)
Green Rvr	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Bowman	United States	Record daily snowfall	21.6 cm (8.5 in)	42 of 100 (Notable)
Bowman	United States	Record snow depth	22.9 cm (9.0 in)	40 of 100 (Notable)
Duchesne	United States	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Makwassie	South Africa	Record daily precipitation	51.1 mm (2.0 in)	37 of 100 (Notable)
Douglas 1 SE	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Yellow Grass	Canada	Record daily snowfall	9.7 cm (3.8 in)	34 of 100 (Routine)
Durango	United States	Record daily snowfall	12.7 cm (5.0 in)	34 of 100 (Routine)
Westminter Estate	South Africa	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Dickinson Exp STN	United States	Record daily snowfall	17.8 cm (7.0 in)	33 of 100 (Routine)
Joseph	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Redig 11 NE	United States	Record daily snowfall	10.2 cm (4.0 in)	33 of 100 (Routine)
Colony	United States	Record daily snowfall	10.2 cm (4.0 in)	33 of 100 (Routine)
Big Creek	Canada	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
Ignace	Canada	Record daily precipitation	42.2 mm (1.7 in)	32 of 100 (Routine)
Kangayam	India	Record daily precipitation	59.7 mm (2.4 in)	32 of 100 (Routine)
Alpine	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
Collbran	United States	Record daily snowfall	6.4 cm (2.5 in)	32 of 100 (Routine)
Norwich	United States	Record high minimum temperature	21.1 C (70.0 F)	32 of 100 (Routine)
Mandan Exp STN	United States	Record daily snowfall	14.0 cm (5.5 in)	32 of 100 (Routine)
Marmarth	United States	Record daily snowfall	12.7 cm (5.0 in)	32 of 100 (Routine)
Orman Dam	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
Zoetveld	South Africa	Record daily precipitation	35.6 mm (1.4 in)	31 of 100 (Routine)
Pembina	United States	Record daily precipitation	35.8 mm (1.4 in)	31 of 100 (Routine)
Rooipoort	South Africa	Record daily precipitation	51.3 mm (2.0 in)	30 of 100 (Routine)
Redding Fire STN 2	United States	Record low minimum temperature	0.0 C (32.0 F)	30 of 100 (Routine)
Valley Falls	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Cuyamaca	United States	Record low minimum temperature	-3.9 C (25.0 F)	29 of 100 (Routine)
Mine Centre	Canada	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Montgomery Wb City	United States	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
McGill	United States	Record low minimum temperature	-7.8 C (18.0 F)	28 of 100 (Routine)
Dickinson Exp STN	United States	Record snow depth	15.2 cm (6.0 in)	28 of 100 (Routine)
Laurier	United States	Record low minimum temperature	-5.6 C (21.9 F)	28 of 100 (Routine)
Snoqualmie Falls	United States	Record low maximum temperature	8.3 C (46.9 F)	28 of 100 (Routine)
Buffalo Bill Dam	United States	Record low maximum temperature	1.1 C (34.0 F)	28 of 100 (Routine)
Calgary Int'l A	Canada	Record low minimum temperature	-6.1 C (21.0 F)	27 of 100 (Routine)
Harnosand	Sweden	Record high maximum temperature	19.0 C (66.2 F)	27 of 100 (Routine)
Cedarville	United States	Record low maximum temperature	6.1 C (43.0 F)	27 of 100 (Routine)
Cottonwood Falls	United States	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Lakeview 2 NNW	United States	Record snow depth	10.2 cm (4.0 in)	27 of 100 (Routine)
Ashland Exp Farm	United States	Record low maximum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Morden	Canada	Record low maximum temperature	-0.6 C (30.9 F)	26 of 100 (Routine)
Owen Sound	Canada	Record daily snowfall	6.1 cm (2.4 in)	26 of 100 (Routine)
Jaggiayapet	India	Record daily precipitation	36.8 mm (1.4 in)	26 of 100 (Routine)
Spicer	United States	Record daily snowfall	25.4 cm (10.0 in)	26 of 100 (Routine)
Dulce	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Durant	United States	Record high minimum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Weston 2 SE	United States	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)
Belle Fourche	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Ibapah	United States	Record low minimum temperature	-12.2 C (10.0 F)	26 of 100 (Routine)
Evanston 1 E	United States	Record daily snowfall	7.6 cm (3.0 in)	26 of 100 (Routine)
Riverton	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Alturas	United States	Record low maximum temperature	2.2 C (36.0 F)	25 of 100 (Routine)
Imlay	United States	Record low maximum temperature	6.1 C (43.0 F)	25 of 100 (Routine)

Counts by Type and Timescale

953 records

Records set or tied on 4 May 1950 by type: Highest daily maximum 60, Lowest daily maximum 300, Highest daily minimum 240, Lowest daily minimum 148, Heaviest daily rainfall 134, Heaviest daily snowfall 62, Deepest snow cover 9.

Records on 4 May 1950 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	300
Highest daily minimum	240
Lowest daily minimum	148
Heaviest daily rainfall	134
Heaviest daily snowfall	62
Deepest snow cover	9

Records on 4 May 1950 by timescale: all-time 0, monthly 54, daily 899.

How Much Records Were Beaten By

726 broken records

Margins by which the 726 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

4 May 1950

Top 20 records on 4 May 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1950	Poortjie, ZA	monthly rain	76.2 mm (3.0 in)	47.8 mm (1.9 in)	25 years	61 of 100 (Major)
4 May 1950	Camp Crook, US	daily snowfall	25.4 cm (10.0 in)	25.4 cm (10.0 in)	53 years	61 of 100 (Major)
4 May 1950	Bothaville (Mun), ZA	daily rain	33.8 mm (1.3 in)	29.2 mm (1.1 in)	20 years	50 of 100 (Notable)
4 May 1950	Doornbult, ZA	daily rain	44.5 mm (1.8 in)	35.1 mm (1.4 in)	24 years	48 of 100 (Notable)
4 May 1950	Tweespruit, ZA	daily rain	50.8 mm (2.0 in)	31.7 mm (1.2 in)	9 years	45 of 100 (Notable)
4 May 1950	Nelsdrift, ZA	daily rain	33.5 mm (1.3 in)	27.7 mm (1.1 in)	24 years	45 of 100 (Notable)
4 May 1950	Green Rvr, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	37 years	45 of 100 (Notable)
4 May 1950	Bowman, US	monthly snowfall	21.6 cm (8.5 in)	14.0 cm (5.5 in)	4 years	42 of 100 (Notable)
4 May 1950	Bowman, US	monthly snow depth	22.9 cm (9.0 in)	17.8 cm (7.0 in)	33 years	40 of 100 (Notable)
4 May 1950	Duchesne, US	daily snowfall	12.7 cm (5.0 in)	12.2 cm (4.8 in)	37 years	39 of 100 (Notable)
4 May 1950	Makwassie, ZA	monthly rain	51.1 mm (2.0 in)	16.3 mm (0.6 in)	6 years	37 of 100 (Notable)
4 May 1950	Douglas 1 SE, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	36 years	35 of 100 (Notable)
4 May 1950	Yellow Grass, CA	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	37 years	34 of 100 (Routine)
4 May 1950	Durango, US	monthly snowfall	12.7 cm (5.0 in)	2.5 cm (1.0 in)	49 years	34 of 100 (Routine)
4 May 1950	Westminter Estate, ZA	daily rain	36.8 mm (1.4 in)	15.0 mm (0.6 in)	43 years	33 of 100 (Routine)
4 May 1950	Dickinson Exp STN, US	daily snowfall	17.8 cm (7.0 in)	7.6 cm (3.0 in)	44 years	33 of 100 (Routine)
4 May 1950	Joseph, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	53 years	33 of 100 (Routine)
4 May 1950	Redig 11 NE, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	35 years	33 of 100 (Routine)
4 May 1950	Colony, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	35 years	33 of 100 (Routine)
4 May 1950	Big Creek, CA	daily snowfall	7.6 cm (3.0 in)	6.6 cm (2.6 in)	40 years	32 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

1795 to 1950

Records set or tied on this calendar date in each year from 1795 to 1950. 1950 had 953 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 1950-05-04: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 50	692
50 to 100	24
100 to 150	7
150 to 200	2
200 to 250	0
250 to 300	1