Weather Records on 30 October 1943

255 weather records were set or tied worldwide on 30 October 1943. Highest significance: Rico, US.

Key Facts for 30 October 1943

On 30 October 1943, 255 weather records were set or tied at long-record stations worldwide.
71 were record highs and 16 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 252 daily.
Rico set a daily record precipitation of 41.9 mm (1.6 in) on 30 October 1943.
Across 153 earlier years (1799 to 2025) the same calendar date averaged 492 records.

Record Map

255 stations

255 station records on 30 October 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 October 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rico	United States	Record daily precipitation	41.9 mm (1.6 in)	50 of 100 (Notable)
Archer Point Lighthouse	Australia	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Cameron Downs	Australia	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Telluride 4WNW	United States	Record daily snowfall	26.7 cm (10.5 in)	39 of 100 (Notable)
Academy 2NE	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
Tanana AP	United States	Record low maximum temperature	-20.6 C (-5.1 F)	30 of 100 (Routine)
Alkmaar	South Africa	Record daily precipitation	33.5 mm (1.3 in)	29 of 100 (Routine)
Cumberland	South Africa	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Telluride 4WNW	United States	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Galway	Ireland	Record high minimum temperature	11.7 C (53.1 F)	28 of 100 (Routine)
Clifton Hill	United States	Record daily precipitation	39.6 mm (1.6 in)	28 of 100 (Routine)
Cyferfontein	South Africa	Record daily precipitation	28.2 mm (1.1 in)	26 of 100 (Routine)
Glenwood Spgs #2	United States	Record daily snowfall	13.2 cm (5.2 in)	26 of 100 (Routine)
Buskala Rch	United States	Record daily snowfall	20.3 cm (8.0 in)	26 of 100 (Routine)
Dumont 2 ENE	United States	Record daily snowfall	15.2 cm (6.0 in)	25 of 100 (Routine)
Oorschot	South Africa	Record daily precipitation	36.6 mm (1.4 in)	24 of 100 (Routine)
Umea	Sweden	Record high maximum temperature	11.6 C (52.9 F)	24 of 100 (Routine)
Tarnaby	Sweden	Record high minimum temperature	6.4 C (43.5 F)	24 of 100 (Routine)
Carmichael (Tnk)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	23 of 100 (Routine)
Spicer	United States	Record daily snowfall	15.2 cm (6.0 in)	23 of 100 (Routine)
Crested Butte	United States	Record daily snowfall	12.7 cm (5.0 in)	22 of 100 (Routine)
Umea	Sweden	Record high minimum temperature	5.8 C (42.4 F)	21 of 100 (Routine)
Harrison	United States	Record high minimum temperature	16.7 C (62.1 F)	21 of 100 (Routine)
Genoa 2 W	United States	Record daily precipitation	26.7 mm (1.1 in)	21 of 100 (Routine)
Orman Dam	United States	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
Busby	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Dumont 2 ENE	United States	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Maple Creek	Canada	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Yardley Chase	South Africa	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Dayton 1 WSW	United States	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Lewistown AP	United States	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Spicer	United States	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Flatwillow 4 ENE	United States	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Lovell	United States	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Glenwood Spgs #2	United States	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Kimball 2NE	United States	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Belle Fourche	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Havre Wb City	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Chinook	United States	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Marmarth	United States	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Moscow U of I	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Academy 2NE	United States	Record snow depth	7.6 cm (3.0 in)	20 of 100 (Routine)
Hay Springs	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Makaweli 965	United States	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Crested Butte	United States	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Columbia Falls 5 SW	United States	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Ardmore 1 NW	United States	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Vale	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Whiteriver 1 SW	United States	Record daily snowfall	2.0 cm (0.8 in)	20 of 100 (Routine)
Meeker	United States	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Spencer 1 N	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Glasgow #2	United States	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Fairfax	United States	Record daily snowfall	2.8 cm (1.1 in)	20 of 100 (Routine)
Hot Springs	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Huron Rgnl AP	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Tewantin Post Office	Australia	Record low maximum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Crested Butte	United States	Record high minimum temperature	-1.7 C (28.9 F)	20 of 100 (Routine)
Wood	United States	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Rosalia	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Bloomsbury Post Office	Australia	Record daily precipitation	14.5 mm (0.6 in)	19 of 100 (Routine)

Counts by Type and Timescale

255 records

Records set or tied on 30 October 1943 by type: Highest daily maximum 18, Lowest daily maximum 6, Highest daily minimum 53, Lowest daily minimum 10, Heaviest daily rainfall 144, Heaviest daily snowfall 21, Deepest snow cover 3.

Records on 30 October 1943 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	6
Highest daily minimum	53
Lowest daily minimum	10
Heaviest daily rainfall	144
Heaviest daily snowfall	21
Deepest snow cover	3

Records on 30 October 1943 by timescale: all-time 0, monthly 3, daily 252.

How Much Records Were Beaten By

209 broken records

Margins by which the 209 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.0. Ties are not counted.

Top 20 by Significance

30 October 1943

Top 20 records on 30 October 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 October 1943	Rico, US	daily rain	41.9 mm (1.6 in)	33.3 mm (1.3 in)	20 years	50 of 100 (Notable)
30 October 1943	Archer Point Lighthouse, AU	daily rain	50.8 mm (2.0 in)	42.9 mm (1.7 in)	8 years	43 of 100 (Notable)
30 October 1943	Cameron Downs, AU	daily rain	38.1 mm (1.5 in)	35.3 mm (1.4 in)	32 years	42 of 100 (Notable)
30 October 1943	Telluride 4WNW, US	daily snowfall	26.7 cm (10.5 in)	16.5 cm (6.5 in)	30 years	39 of 100 (Notable)
30 October 1943	Academy 2NE, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	44 years	32 of 100 (Routine)
30 October 1943	Tanana AP, US	monthly low max	-20.6 C (-5.1 F)	5.0 C (9.0 F)	26 years	30 of 100 (Routine)
30 October 1943	Alkmaar, ZA	daily rain	33.5 mm (1.3 in)	18.3 mm (0.7 in)	36 years	29 of 100 (Routine)
30 October 1943	Cumberland, ZA	daily rain	38.9 mm (1.5 in)	29.5 mm (1.2 in)	4 years	29 of 100 (Routine)
30 October 1943	Telluride 4WNW, US	daily rain	26.7 mm (1.1 in)	14.0 mm (0.6 in)	20 years	29 of 100 (Routine)
30 October 1943	Galway, IE	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	59 years	28 of 100 (Routine)
30 October 1943	Clifton Hill, US	daily rain	39.6 mm (1.6 in)	26.9 mm (1.1 in)	1 year	28 of 100 (Routine)
30 October 1943	Cyferfontein, ZA	daily rain	28.2 mm (1.1 in)	22.6 mm (0.9 in)	4 years	26 of 100 (Routine)
30 October 1943	Glenwood Spgs #2, US	daily snowfall	13.2 cm (5.2 in)	10.9 cm (4.3 in)	0 years	26 of 100 (Routine)
30 October 1943	Buskala Rch, US	daily snowfall	20.3 cm (8.0 in)	10.1 cm (4.0 in)	24 years	26 of 100 (Routine)
30 October 1943	Dumont 2 ENE, US	daily snowfall	15.2 cm (6.0 in)	11.9 cm (4.7 in)	12 years	25 of 100 (Routine)
30 October 1943	Oorschot, ZA	daily rain	36.6 mm (1.4 in)	22.9 mm (0.9 in)	0 years	24 of 100 (Routine)
30 October 1943	Umea, SE	daily high max	11.6 C (52.9 F)	2.1 C (3.8 F)	45 years	24 of 100 (Routine)
30 October 1943	Tarnaby, SE	daily high min	6.4 C (43.5 F)	3.4 C (6.1 F)	45 years	24 of 100 (Routine)
30 October 1943	Carmichael (Tnk), ZA	daily rain	38.1 mm (1.5 in)	22.9 mm (0.9 in)	0 years	23 of 100 (Routine)
30 October 1943	Spicer, US	daily snowfall	15.2 cm (6.0 in)	7.6 cm (3.0 in)	18 years	23 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

1799 to 1943

Records set or tied on this calendar date in each year from 1799 to 1943. 1943 had 255 records.

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

Records on 10-30 in each year
Year	Records
1799	1
1815	1
1837	1
1839	1
1841	1
1849	1
1856	1
1866	1
1867	1
1869	5
1870	1
1871	1
1873	2
1877	1
1881	4
1885	3
1886	2
1887	1
1888	1
1889	3
1890	4
1891	2
1892	3
1894	7
1896	4
1897	2
1898	2
1899	2
1900	3
1901	9
1902	6
1903	3
1904	1
1905	12
1906	25
1907	12
1908	14
1909	15
1910	22
1911	19
1912	28
1913	38
1914	22
1915	39
1916	23
1917	85
1918	189
1919	80
1920	73
1921	31
1922	108
1923	202
1924	246
1925	755
1926	131
1927	259
1928	195
1929	277
1930	228
1931	144
1932	181
1933	454
1934	198
1935	739
1936	253
1937	496
1938	245
1939	240
1940	251
1941	393
1942	877
1943	255
1944	497
1945	446
1946	826
1947	252
1948	326
1949	528
1950	1,186
1951	373
1952	635
1953	522
1954	276
1955	494
1956	716
1957	531
1958	366
1959	859
1960	258
1961	781
1962	382
1963	353
1964	488
1965	439
1966	490
1967	665
1968	555
1969	656
1970	636
1971	1,663
1972	902
1973	534
1974	1,039
1975	427
1976	760
1977	882
1978	359
1979	809
1980	885
1981	547
1982	534
1983	549
1984	1,270
1985	848
1986	422
1987	883
1988	972
1989	904
1990	685
1991	2,772
1992	1,228
1993	2,095
1994	777
1995	831
1996	1,299
1997	1,033
1998	771
1999	897
2000	1,659
2001	1,233
2002	1,564
2003	973
2004	1,188
2005	1,144
2006	886
2007	773
2008	1,310
2009	1,513
2010	619
2011	1,022
2012	1,413
2013	622
2014	297
2015	395
2016	981
2017	783
2018	507
2019	1,931
2020	683
2021	486
2022	762
2023	969
2024	1,393
2025	322

Download the Data

Data for records on 1943-10-30: 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 25	191
25 to 50	8
50 to 75	3
75 to 100	3
100 to 125	3
125 to 150	0
150 to 175	1