Weather Records on 30 October 2018

507 weather records were set or tied worldwide on 30 October 2018. Highest significance: Mahaulepu 941.1, US.

Key Facts for 30 October 2018

On 30 October 2018, 507 weather records were set or tied at long-record stations worldwide.
257 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 21 monthly and 486 daily.
Mahaulepu 941.1 set a daily record precipitation of 116.3 mm (4.6 in) on 30 October 2018.
Across 153 earlier years (1799 to 2025) the same calendar date averaged 490 records.

Record Map

507 stations

507 station records on 30 October 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 October 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mahaulepu 941.1	United States	Record daily precipitation	116.3 mm (4.6 in)	70 of 100 (Major)
Koloa 936	United States	Record daily precipitation	87.9 mm (3.5 in)	68 of 100 (Major)
UNIV of Hawaii 713	United States	Record daily precipitation	96.3 mm (3.8 in)	57 of 100 (Notable)
Puhi 1013	United States	Record daily precipitation	104.6 mm (4.1 in)	53 of 100 (Notable)
Waimea Valley 892.2	United States	Record daily precipitation	58.9 mm (2.3 in)	48 of 100 (Notable)
Biskra	Algeria	Record low minimum temperature	6.6 C (43.9 F)	47 of 100 (Notable)
Szczecin	Poland	Record high maximum temperature	22.2 C (72.0 F)	47 of 100 (Notable)
Pahala Mauka 21.3	United States	Record daily precipitation	180.3 mm (7.1 in)	47 of 100 (Notable)
Bugt	China	Record daily precipitation	39.9 mm (1.6 in)	46 of 100 (Notable)
Beretania Pump STN 705	United States	Record daily precipitation	65.8 mm (2.6 in)	46 of 100 (Notable)
Copeland Lake	United States	Record daily precipitation	35.6 mm (1.4 in)	46 of 100 (Notable)
Newport	United States	Record daily precipitation	37.6 mm (1.5 in)	45 of 100 (Notable)
Gorlitz	Germany	Record high maximum temperature	19.8 C (67.6 F)	44 of 100 (Notable)
Valhalla	Australia	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Warroo Station	Australia	Record daily precipitation	32.2 mm (1.3 in)	42 of 100 (Notable)
Verhojansk	Russia	Record high maximum temperature	3.1 C (37.6 F)	42 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	15.4 C (59.7 F)	42 of 100 (Notable)
Greifswald	Germany	Record high maximum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Cottbus	Germany	Record high maximum temperature	21.2 C (70.2 F)	41 of 100 (Notable)
Makaweli 965	United States	Record daily precipitation	59.7 mm (2.4 in)	41 of 100 (Notable)
Richmond Post Office	Australia	Record high maximum temperature	42.9 C (109.2 F)	40 of 100 (Notable)
Valley	United Kingdom	Record low minimum temperature	-1.7 C (28.9 F)	40 of 100 (Notable)
Budapest	Hungary	Record high maximum temperature	22.1 C (71.8 F)	39 of 100 (Notable)
Cluj Napoca	Romania	Record high maximum temperature	24.6 C (76.3 F)	39 of 100 (Notable)
Viljujsk	Russia	Record high minimum temperature	-4.1 C (24.6 F)	39 of 100 (Notable)
Falun	Sweden	Record daily precipitation	32.2 mm (1.3 in)	39 of 100 (Notable)
Waipahu 750	United States	Record daily precipitation	40.1 mm (1.6 in)	39 of 100 (Notable)
Berlin-Dahlem	Germany	Record high maximum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Angermunde	Germany	Record high maximum temperature	21.3 C (70.3 F)	37 of 100 (Notable)
Ueckermunde	Germany	Record high maximum temperature	21.4 C (70.5 F)	37 of 100 (Notable)
Makaweli 965	United States	Record low maximum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Lindenberg	Germany	Record high maximum temperature	20.7 C (69.3 F)	36 of 100 (Notable)
Hiddensee-Vitte	Germany	Record high maximum temperature	18.4 C (65.1 F)	36 of 100 (Notable)
Kerman	Iran	Record low maximum temperature	12.5 C (54.5 F)	36 of 100 (Notable)
Cluj Napoca	Romania	Record high minimum temperature	13.7 C (56.7 F)	36 of 100 (Notable)
Bavertrask	Sweden	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Princeville Rch 1117	United States	Record daily precipitation	56.4 mm (2.2 in)	36 of 100 (Notable)
Waiahole 837	United States	Record daily precipitation	68.6 mm (2.7 in)	36 of 100 (Notable)
Berlin-Tegel	Germany	Record high maximum temperature	21.3 C (70.3 F)	35 of 100 (Notable)
Stratford	United States	Record high minimum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	21.5 C (70.7 F)	34 of 100 (Routine)
Quelimane	Mozambique	Record low minimum temperature	9.5 C (49.1 F)	34 of 100 (Routine)
Zhigansk	Russia	Record high maximum temperature	0.0 C (32.0 F)	34 of 100 (Routine)
Njurba	Russia	Record high maximum temperature	4.2 C (39.6 F)	34 of 100 (Routine)
Sangary	Russia	Record high minimum temperature	-7.3 C (18.9 F)	34 of 100 (Routine)
Potsdam	Germany	Record high maximum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Ostrov Kotelnyj	Russia	Record high maximum temperature	-1.6 C (29.1 F)	33 of 100 (Routine)
Aldan	Russia	Record high maximum temperature	5.7 C (42.3 F)	33 of 100 (Routine)
Hallands_Vadero	Sweden	Record high maximum temperature	15.7 C (60.3 F)	33 of 100 (Routine)
Wahiawa 930	United States	Record daily precipitation	46.7 mm (1.8 in)	33 of 100 (Routine)
Waikiki 717.2	United States	Record daily precipitation	45.5 mm (1.8 in)	33 of 100 (Routine)
Duaringa Post Office	Australia	Record daily precipitation	65.2 mm (2.6 in)	32 of 100 (Routine)
Fairleigh	Australia	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)
Christchurch Intl	New Zealand	Record daily precipitation	29.0 mm (1.1 in)	32 of 100 (Routine)
Jubilejnaja	Russia	Record high maximum temperature	0.0 C (32.0 F)	32 of 100 (Routine)
Nianfors	Sweden	Record daily precipitation	43.0 mm (1.7 in)	32 of 100 (Routine)
Kaena Pt 841.3	United States	Record daily precipitation	57.7 mm (2.3 in)	32 of 100 (Routine)
Kapalama 773	United States	Record daily precipitation	53.3 mm (2.1 in)	32 of 100 (Routine)
Moanalua 770	United States	Record daily precipitation	54.4 mm (2.1 in)	32 of 100 (Routine)
Hurbanovo	Slovakia	Record high maximum temperature	21.8 C (71.2 F)	31 of 100 (Routine)

Counts by Type and Timescale

507 records

Records set or tied on 30 October 2018 by type: Highest daily maximum 160, Lowest daily maximum 55, Highest daily minimum 97, Lowest daily minimum 40, Heaviest daily rainfall 153, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 30 October 2018 by type
Record type	Records
Highest daily maximum	160
Lowest daily maximum	55
Highest daily minimum	97
Lowest daily minimum	40
Heaviest daily rainfall	153
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 30 October 2018 by timescale: all-time 0, monthly 21, daily 486.

How Much Records Were Beaten By

458 broken records

Margins by which the 458 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.6. Ties are not counted.

Top 20 by Significance

30 October 2018

Top 20 records on 30 October 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 October 2018	Mahaulepu 941.1, US	daily rain	116.3 mm (4.6 in)	89.6 mm (3.5 in)	67 years	70 of 100 (Major)
30 October 2018	Koloa 936, US	daily rain	87.9 mm (3.5 in)	60.2 mm (2.4 in)	63 years	68 of 100 (Major)
30 October 2018	UNIV of Hawaii 713, US	daily rain	96.3 mm (3.8 in)	35.1 mm (1.4 in)	76 years	57 of 100 (Notable)
30 October 2018	Puhi 1013, US	daily rain	104.6 mm (4.1 in)	44.7 mm (1.8 in)	36 years	53 of 100 (Notable)
30 October 2018	Waimea Valley 892.2, US	daily rain	58.9 mm (2.3 in)	29.9 mm (1.2 in)	28 years	48 of 100 (Notable)
30 October 2018	Biskra, DZ	daily low min	6.6 C (43.9 F)	2.4 C (4.3 F)	130 years	47 of 100 (Notable)
30 October 2018	Szczecin, PL	daily high max	22.2 C (72.0 F)	6.1 C (11.0 F)	80 years	47 of 100 (Notable)
30 October 2018	Pahala Mauka 21.3, US	monthly rain	180.3 mm (7.1 in)	49.2 mm (1.9 in)	29 years	47 of 100 (Notable)
30 October 2018	Bugt, CN	daily rain	39.9 mm (1.6 in)	30.0 mm (1.2 in)	1 year	46 of 100 (Notable)
30 October 2018	Beretania Pump STN 705, US	daily rain	65.8 mm (2.6 in)	31.8 mm (1.3 in)	36 years	46 of 100 (Notable)
30 October 2018	Copeland Lake, US	daily rain	35.6 mm (1.4 in)	20.4 mm (0.8 in)	36 years	46 of 100 (Notable)
30 October 2018	Newport, US	daily rain	37.6 mm (1.5 in)	10.2 mm (0.4 in)	68 years	45 of 100 (Notable)
30 October 2018	Gorlitz, DE	daily high max	19.8 C (67.6 F)	1.8 C (3.2 F)	104 years	44 of 100 (Notable)
30 October 2018	Valhalla, AU	daily rain	35.6 mm (1.4 in)	23.4 mm (0.9 in)	56 years	43 of 100 (Notable)
30 October 2018	Warroo Station, AU	daily rain	32.2 mm (1.3 in)	16.7 mm (0.7 in)	55 years	42 of 100 (Notable)
30 October 2018	Verhojansk, RU	daily high max	3.1 C (37.6 F)	4.9 C (8.8 F)	92 years	42 of 100 (Notable)
30 October 2018	Halmstad, SE	daily high max	15.4 C (59.7 F)	0.9 C (1.6 F)	119 years	42 of 100 (Notable)
30 October 2018	Greifswald, DE	daily high max	20.6 C (69.1 F)	3.4 C (6.1 F)	76 years	41 of 100 (Notable)
30 October 2018	Cottbus, DE	daily high max	21.2 C (70.2 F)	0.8 C (1.4 F)	104 years	41 of 100 (Notable)
30 October 2018	Makaweli 965, US	daily rain	59.7 mm (2.4 in)	30.5 mm (1.2 in)	36 years	41 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 2018

Records set or tied on this calendar date in each year from 1799 to 2018. 2018 had 507 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 2018-10-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	440
20 to 40	13
40 to 60	3
60 to 80	1
80 to 100	1