Weather Records on 18 May 1925

220 weather records were set or tied worldwide on 18 May 1925. Highest significance: Tobolsk, RU.

Key Facts for 18 May 1925

On 18 May 1925, 220 weather records were set or tied at long-record stations worldwide.
64 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 216 daily.
Tobolsk set a daily record precipitation of 37.6 mm (1.5 in) on 18 May 1925.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 444 records.

Record Map

220 stations

220 station records on 18 May 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tobolsk	Russia	Record daily precipitation	37.6 mm (1.5 in)	52 of 100 (Notable)
Bega (Newtown Road)	Australia	Record daily precipitation	86.4 mm (3.4 in)	40 of 100 (Notable)
Bemboka Post Office	Australia	Record daily precipitation	105.9 mm (4.2 in)	40 of 100 (Notable)
Hallettsville 2 N	United States	Record high maximum temperature	38.9 C (102.0 F)	29 of 100 (Routine)
Euabalong (Booberoi)	Australia	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Stratford	Canada	Record low minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Bisbee	United States	Record high maximum temperature	37.8 C (100.0 F)	26 of 100 (Routine)
Euabolong (Brotherony)	Australia	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
New Westminster	Canada	Record high maximum temperature	24.4 C (75.9 F)	23 of 100 (Routine)
Pendleton Dwtn	United States	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Moruya Heads Pilot Station	Australia	Record daily precipitation	54.9 mm (2.2 in)	22 of 100 (Routine)
Haliburton A	Canada	Record low minimum temperature	-6.1 C (21.0 F)	22 of 100 (Routine)
Ukiah	United States	Record daily precipitation	33.0 mm (1.3 in)	22 of 100 (Routine)
Tottenham (Burdenda)	Australia	Record daily precipitation	42.7 mm (1.7 in)	21 of 100 (Routine)
Edmonton	Canada	Record high maximum temperature	30.6 C (87.1 F)	21 of 100 (Routine)
Beatrice	Canada	Record low minimum temperature	-4.4 C (24.1 F)	21 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	27.2 C (81.0 F)	21 of 100 (Routine)
S Bend AP	United States	Record low minimum temperature	-1.1 C (30.0 F)	21 of 100 (Routine)
Melrose Plains	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Rosewin (Boona Tank)	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
San Jose	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
The Dalles	United States	Record daily precipitation	7.1 mm (0.28 in)	20 of 100 (Routine)
Goulburn	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Scotland Neck	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Goodna Ampol	Australia	Record daily precipitation	32.5 mm (1.3 in)	20 of 100 (Routine)
Condobolin Retirement Village	Australia	Record daily precipitation	25.9 mm (1.0 in)	19 of 100 (Routine)
Sveg	Sweden	Record high maximum temperature	25.0 C (77.0 F)	19 of 100 (Routine)
Paris Stp	United States	Record low minimum temperature	0.6 C (33.1 F)	19 of 100 (Routine)
Mexico	United States	Record low maximum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Agassiz Cda	Canada	Record high minimum temperature	13.3 C (55.9 F)	18 of 100 (Routine)
Biser	Russia	Record daily precipitation	13.2 mm (0.5 in)	18 of 100 (Routine)
Houston	United States	Record low maximum temperature	11.1 C (52.0 F)	18 of 100 (Routine)
Salisbury	United States	Record low maximum temperature	16.7 C (62.1 F)	18 of 100 (Routine)
Tarboro 1 S	United States	Record low maximum temperature	17.8 C (64.0 F)	18 of 100 (Routine)
Olympia Priest Pt Park	United States	Record high minimum temperature	10.6 C (51.1 F)	18 of 100 (Routine)
Cairns Post Office	Australia	Record high maximum temperature	31.0 C (87.8 F)	17 of 100 (Routine)
Casino Airport	Australia	Record daily precipitation	22.4 mm (0.9 in)	17 of 100 (Routine)
Dundullimal	Australia	Record daily precipitation	27.7 mm (1.1 in)	17 of 100 (Routine)
Tallong	Australia	Record daily precipitation	16.5 mm (0.6 in)	17 of 100 (Routine)
Ottawa	Canada	Record low minimum temperature	0.0 C (32.0 F)	17 of 100 (Routine)
Ottawa Cda	Canada	Record low minimum temperature	-1.1 C (30.0 F)	17 of 100 (Routine)
Brantford	Canada	Record low minimum temperature	-2.2 C (28.0 F)	17 of 100 (Routine)
Federal Pt	United States	Record high minimum temperature	22.2 C (72.0 F)	17 of 100 (Routine)
Ottawa 4SW	United States	Record low minimum temperature	0.0 C (32.0 F)	17 of 100 (Routine)
Ogdensburg 4 NE	United States	Record low minimum temperature	1.1 C (34.0 F)	17 of 100 (Routine)
Warra Post Office	Australia	Record daily precipitation	3.6 mm (0.14 in)	16 of 100 (Routine)
Condobolin (Borambil Park)	Australia	Record daily precipitation	19.6 mm (0.8 in)	16 of 100 (Routine)
Tottenham (Moira Vale)	Australia	Record daily precipitation	35.8 mm (1.4 in)	16 of 100 (Routine)
Battleford	Canada	Record high maximum temperature	30.0 C (86.0 F)	16 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record high minimum temperature	3.3 C (37.9 F)	16 of 100 (Routine)
Pitea	Sweden	Record high maximum temperature	23.5 C (74.3 F)	16 of 100 (Routine)
Hollister 1 SW	United States	Record high minimum temperature	14.4 C (57.9 F)	16 of 100 (Routine)
Los Gatos	United States	Record high minimum temperature	13.3 C (55.9 F)	16 of 100 (Routine)
Kissimmee	United States	Record daily precipitation	24.1 mm (0.9 in)	16 of 100 (Routine)
Moncure 3 SE	United States	Record daily precipitation	22.9 mm (0.9 in)	16 of 100 (Routine)
Sandgate Post Office	Australia	Record daily precipitation	36.1 mm (1.4 in)	15 of 100 (Routine)
Merungle	Australia	Record daily precipitation	15.2 mm (0.6 in)	15 of 100 (Routine)
Woolgoolga (Clear Place)	Australia	Record daily precipitation	35.6 mm (1.4 in)	15 of 100 (Routine)
Eden (Caravan Park)	Australia	Record daily precipitation	64.0 mm (2.5 in)	15 of 100 (Routine)

Counts by Type and Timescale

220 records

Records set or tied on 18 May 1925 by type: Highest daily maximum 37, Lowest daily maximum 17, Highest daily minimum 27, Lowest daily minimum 78, Heaviest daily rainfall 61.

Records on 18 May 1925 by type
Record type	Records
Highest daily maximum	37
Lowest daily maximum	17
Highest daily minimum	27
Lowest daily minimum	78
Heaviest daily rainfall	61
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 May 1925 by timescale: all-time 0, monthly 4, daily 216.

How Much Records Were Beaten By

176 broken records

Margins by which the 176 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.0. Ties are not counted.

Top 20 by Significance

18 May 1925

Top 20 records on 18 May 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1925	Tobolsk, RU	daily rain	37.6 mm (1.5 in)	19.6 mm (0.8 in)	29 years	52 of 100 (Notable)
18 May 1925	Bega (Newtown Road), AU	daily rain	86.4 mm (3.4 in)	61.0 mm (2.4 in)	34 years	40 of 100 (Notable)
18 May 1925	Bemboka Post Office, AU	daily rain	105.9 mm (4.2 in)	48.2 mm (1.9 in)	24 years	40 of 100 (Notable)
18 May 1925	Hallettsville 2 N, US	monthly high max	38.9 C (102.0 F)	2.2 C (4.0 F)	31 years	29 of 100 (Routine)
18 May 1925	Euabalong (Booberoi), AU	daily rain	26.7 mm (1.1 in)	14.0 mm (0.6 in)	15 years	27 of 100 (Routine)
18 May 1925	Stratford, CA	daily low min	-2.8 C (27.0 F)	2.2 C (4.0 F)	53 years	26 of 100 (Routine)
18 May 1925	Bisbee, US	monthly high max	37.8 C (100.0 F)	2.2 C (4.0 F)	28 years	26 of 100 (Routine)
18 May 1925	Euabolong (Brotherony), AU	daily rain	27.4 mm (1.1 in)	13.7 mm (0.5 in)	8 years	25 of 100 (Routine)
18 May 1925	Portland Rfc City, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	40 years	25 of 100 (Routine)
18 May 1925	New Westminster, CA	daily high max	24.4 C (75.9 F)	2.2 C (4.0 F)	43 years	23 of 100 (Routine)
18 May 1925	Pendleton Dwtn, US	monthly high min	16.7 C (62.1 F)	1.1 C (2.0 F)	23 years	23 of 100 (Routine)
18 May 1925	Moruya Heads Pilot Station, AU	daily rain	54.9 mm (2.2 in)	17.3 mm (0.7 in)	24 years	22 of 100 (Routine)
18 May 1925	Haliburton A, CA	daily low min	-6.1 C (21.0 F)	5.0 C (9.0 F)	34 years	22 of 100 (Routine)
18 May 1925	Ukiah, US	monthly rain	33.0 mm (1.3 in)	1.8 mm (0.07 in)	25 years	22 of 100 (Routine)
18 May 1925	Tottenham (Burdenda), AU	daily rain	42.7 mm (1.7 in)	14.8 mm (0.6 in)	11 years	21 of 100 (Routine)
18 May 1925	Edmonton, CA	daily high max	30.6 C (87.1 F)	5.6 C (10.1 F)	27 years	21 of 100 (Routine)
18 May 1925	Beatrice, CA	daily low min	-4.4 C (24.1 F)	2.7 C (4.9 F)	42 years	21 of 100 (Routine)
18 May 1925	Santa Fe, US	daily high max	27.2 C (81.0 F)	1.1 C (2.0 F)	49 years	21 of 100 (Routine)
18 May 1925	S Bend AP, US	daily low min	-1.1 C (30.0 F)	5.0 C (9.0 F)	30 years	21 of 100 (Routine)
18 May 1925	Melrose Plains, AU	daily rain	22.4 mm (0.9 in)	8.7 mm (0.34 in)	38 years	20 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

1796 to 1925

Records set or tied on this calendar date in each year from 1796 to 1925. 1925 had 220 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1925-05-18: 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 2026-10-16 (16 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 10	165
10 to 20	9
20 to 30	0
30 to 40	0
40 to 50	1
50 to 60	0
60 to 70	1