Weather Records on 15 March 1918

81 weather records were set or tied worldwide on 15 March 1918. Highest significance: Philipstown (Tnk), ZA.

Key Facts for 15 March 1918

On 15 March 1918, 81 weather records were set or tied at long-record stations worldwide.
14 were record highs and 7 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 10 monthly and 67 daily.
Philipstown (Tnk) set an all-time record daily precipitation of 146.1 mm (5.8 in) on 15 March 1918.
Across 161 earlier years (1810 to 2026) the same calendar date averaged 488 records.

Record Map

81 stations

81 station records on 15 March 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 March 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Philipstown (Tnk)	South Africa	Record daily precipitation	146.1 mm (5.8 in)	65 of 100 (Major)
Port Alfred	South Africa	Record daily precipitation	88.9 mm (3.5 in)	53 of 100 (Notable)
Fir Glen	South Africa	Record daily precipitation	58.4 mm (2.3 in)	52 of 100 (Notable)
Wellwood	South Africa	Record daily precipitation	48.8 mm (1.9 in)	52 of 100 (Notable)
Sterling	South Africa	Record daily precipitation	52.8 mm (2.1 in)	52 of 100 (Notable)
Grahamstown	South Africa	Record daily precipitation	68.1 mm (2.7 in)	51 of 100 (Notable)
Sterkstroom (Pol)	South Africa	Record daily precipitation	92.7 mm (3.6 in)	50 of 100 (Notable)
Richmond C/K (Tnk)	South Africa	Record daily precipitation	53.6 mm (2.1 in)	48 of 100 (Notable)
Nieu-Bethesda (Pol)	South Africa	Record daily precipitation	72.1 mm (2.8 in)	47 of 100 (Notable)
Waverley	South Africa	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Steynsburg	South Africa	Record daily precipitation	94.0 mm (3.7 in)	40 of 100 (Notable)
Humansdorp (Pol)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	39 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	46.7 mm (1.8 in)	38 of 100 (Notable)
Roodebloem	South Africa	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Yardley Chase	South Africa	Record daily precipitation	61.7 mm (2.4 in)	36 of 100 (Notable)
Cathcart	South Africa	Record daily precipitation	62.0 mm (2.4 in)	32 of 100 (Routine)
Middleburg	South Africa	Record daily precipitation	80.0 mm (3.1 in)	31 of 100 (Routine)
Cullendale	South Africa	Record daily precipitation	63.0 mm (2.5 in)	29 of 100 (Routine)
Colesberg (Tnk)	South Africa	Record daily precipitation	77.5 mm (3.1 in)	29 of 100 (Routine)
Dohne (Sar)	South Africa	Record daily precipitation	45.7 mm (1.8 in)	27 of 100 (Routine)
Aliwal North	South Africa	Record daily precipitation	33.0 mm (1.3 in)	27 of 100 (Routine)
Somerset East	South Africa	Record daily precipitation	67.1 mm (2.6 in)	26 of 100 (Routine)
Hogsback (Bos)	South Africa	Record daily precipitation	82.6 mm (3.3 in)	26 of 100 (Routine)
Strathbogie North	Australia	Record daily precipitation	43.4 mm (1.7 in)	25 of 100 (Routine)
Isidinge (Bos)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	24 of 100 (Routine)
Lady Frere (Tnk)	South Africa	Record daily precipitation	33.8 mm (1.3 in)	24 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	57.2 mm (2.3 in)	24 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	8.5 C (47.3 F)	24 of 100 (Routine)
St John's	Canada	Record daily snowfall	20.3 cm (8.0 in)	23 of 100 (Routine)
Jamestown	South Africa	Record daily precipitation	52.8 mm (2.1 in)	23 of 100 (Routine)
Ellesmere	South Africa	Record daily precipitation	55.9 mm (2.2 in)	23 of 100 (Routine)
Eskdale	Australia	Record daily precipitation	33.0 mm (1.3 in)	21 of 100 (Routine)
Alexandria (Pol)	South Africa	Record daily precipitation	63.5 mm (2.5 in)	21 of 100 (Routine)
Graaff Reinet	South Africa	Record daily precipitation	40.6 mm (1.6 in)	21 of 100 (Routine)
Kazan	Russia	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Aberdeen (Tnk)	South Africa	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Gundaroo (Bairnsdale)	Australia	Record daily precipitation	11.7 mm (0.5 in)	19 of 100 (Routine)
Nicosia	Cyprus	Record daily precipitation	12.4 mm (0.5 in)	19 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	53.3 mm (2.1 in)	19 of 100 (Routine)
Britstown (Pol)	South Africa	Record daily precipitation	60.2 mm (2.4 in)	19 of 100 (Routine)
Chatham	Canada	Record daily snowfall	12.2 cm (4.8 in)	18 of 100 (Routine)
Kieskamahoek (Pol)	South Africa	Record daily precipitation	43.4 mm (1.7 in)	18 of 100 (Routine)
Montagu (Pol)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	17 of 100 (Routine)
Komga (Pol)	South Africa	Record daily precipitation	26.9 mm (1.1 in)	17 of 100 (Routine)
Katberg (Bos)	South Africa	Record daily precipitation	50.8 mm (2.0 in)	17 of 100 (Routine)
Tarkastad (Pol)	South Africa	Record daily precipitation	40.6 mm (1.6 in)	17 of 100 (Routine)
Pitea	Sweden	Record high minimum temperature	2.2 C (36.0 F)	17 of 100 (Routine)
Nymagee (Pyramid)	Australia	Record daily precipitation	2.5 mm (0.10 in)	16 of 100 (Routine)
Alicedale	South Africa	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Yalata	Australia	Record daily precipitation	1.5 mm (0.06 in)	14 of 100 (Routine)
Umea	Sweden	Record high maximum temperature	8.5 C (47.3 F)	14 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	-5.0 C (23.0 F)	14 of 100 (Routine)
Maccue	Canada	Record daily snowfall	17.8 cm (7.0 in)	13 of 100 (Routine)
Renfrew	Canada	Record low maximum temperature	-11.1 C (12.0 F)	13 of 100 (Routine)
Stonecliffe	Canada	Record low maximum temperature	-10.0 C (14.0 F)	12 of 100 (Routine)
Nicosia	Cyprus	Record high minimum temperature	11.1 C (52.0 F)	12 of 100 (Routine)
Harkerville (Bos)	South Africa	Record daily precipitation	26.7 mm (1.1 in)	12 of 100 (Routine)
Haparanda	Sweden	Record high minimum temperature	0.0 C (32.0 F)	12 of 100 (Routine)
Jokkmokk	Sweden	Record high minimum temperature	-0.5 C (31.1 F)	12 of 100 (Routine)
Maccue	Canada	Record daily precipitation	17.8 mm (0.7 in)	11 of 100 (Routine)

Counts by Type and Timescale

81 records

Records set or tied on 15 March 1918 by type: Highest daily maximum 6, Lowest daily maximum 5, Highest daily minimum 8, Lowest daily minimum 2, Heaviest daily rainfall 55, Heaviest daily snowfall 5.

Records on 15 March 1918 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	5
Highest daily minimum	8
Lowest daily minimum	2
Heaviest daily rainfall	55
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 15 March 1918 by timescale: all-time 4, monthly 10, daily 67.

How Much Records Were Beaten By

72 broken records

Margins by which the 72 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.0. Ties are not counted.

Top 20 by Significance

15 March 1918

Top 20 records on 15 March 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 March 1918	Philipstown (Tnk), ZA	all-time rain	146.1 mm (5.8 in)	43.5 mm (1.7 in)	16 years	65 of 100 (Major)
15 March 1918	Port Alfred, ZA	monthly rain	88.9 mm (3.5 in)	50.8 mm (2.0 in)	2 years	53 of 100 (Notable)
15 March 1918	Fir Glen, ZA	daily rain	58.4 mm (2.3 in)	39.9 mm (1.6 in)	30 years	52 of 100 (Notable)
15 March 1918	Wellwood, ZA	daily rain	48.8 mm (1.9 in)	41.7 mm (1.6 in)	26 years	52 of 100 (Notable)
15 March 1918	Sterling, ZA	daily rain	52.8 mm (2.1 in)	42.9 mm (1.7 in)	27 years	52 of 100 (Notable)
15 March 1918	Grahamstown, ZA	daily rain	68.1 mm (2.7 in)	44.7 mm (1.8 in)	32 years	51 of 100 (Notable)
15 March 1918	Sterkstroom (Pol), ZA	monthly rain	92.7 mm (3.6 in)	36.8 mm (1.4 in)	1 year	50 of 100 (Notable)
15 March 1918	Richmond C/K (Tnk), ZA	daily rain	53.6 mm (2.1 in)	41.4 mm (1.6 in)	26 years	48 of 100 (Notable)
15 March 1918	Nieu-Bethesda (Pol), ZA	monthly rain	72.1 mm (2.8 in)	24.9 mm (1.0 in)	27 years	47 of 100 (Notable)
15 March 1918	Waverley, ZA	daily rain	50.8 mm (2.0 in)	35.6 mm (1.4 in)	18 years	47 of 100 (Notable)
15 March 1918	Steynsburg, ZA	all-time rain	94.0 mm (3.7 in)	11.4 mm (0.4 in)	14 years	40 of 100 (Notable)
15 March 1918	Humansdorp (Pol), ZA	daily rain	49.5 mm (1.9 in)	32.5 mm (1.3 in)	18 years	39 of 100 (Notable)
15 March 1918	Qacu (Bos), ZA	daily rain	46.7 mm (1.8 in)	25.1 mm (1.0 in)	26 years	38 of 100 (Notable)
15 March 1918	Roodebloem, ZA	daily rain	35.6 mm (1.4 in)	25.4 mm (1.0 in)	18 years	36 of 100 (Notable)
15 March 1918	Yardley Chase, ZA	monthly rain	61.7 mm (2.4 in)	15.2 mm (0.6 in)	17 years	36 of 100 (Notable)
15 March 1918	Cathcart, ZA	daily rain	62.0 mm (2.4 in)	23.6 mm (0.9 in)	30 years	32 of 100 (Routine)
15 March 1918	Middleburg, ZA	all-time rain	80.0 mm (3.1 in)	7.6 mm (0.30 in)	0 years	31 of 100 (Routine)
15 March 1918	Cullendale, ZA	monthly rain	63.0 mm (2.5 in)	9.2 mm (0.36 in)	24 years	29 of 100 (Routine)
15 March 1918	Colesberg (Tnk), ZA	all-time rain	77.5 mm (3.1 in)	1.3 mm (0.05 in)	16 years	29 of 100 (Routine)
15 March 1918	Dohne (Sar), ZA	daily rain	45.7 mm (1.8 in)	18.0 mm (0.7 in)	32 years	27 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

1810 to 1918

Records set or tied on this calendar date in each year from 1810 to 1918. 1918 had 81 records.

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

Records on 03-15 in each year
Year	Records
1810	1
1813	1
1825	1
1826	1
1828	1
1835	1
1836	2
1839	1
1840	1
1845	3
1846	1
1850	1
1852	2
1854	1
1859	3
1863	1
1867	1
1869	1
1878	1
1882	3
1883	1
1884	3
1886	1
1887	1
1888	3
1889	3
1890	3
1891	5
1892	6
1893	5
1894	1
1895	4
1896	5
1898	3
1899	5
1900	12
1901	11
1902	14
1903	9
1904	6
1905	14
1906	36
1907	16
1908	43
1909	13
1910	23
1911	27
1912	51
1913	79
1914	32
1915	11
1916	34
1917	36
1918	81
1919	40
1920	43
1921	140
1922	39
1923	134
1924	145
1925	72
1926	169
1927	332
1928	193
1929	267
1930	240
1931	122
1932	610
1933	167
1934	298
1935	617
1936	298
1937	711
1938	505
1939	336
1940	340
1941	259
1942	399
1943	639
1944	622
1945	895
1946	915
1947	374
1948	198
1949	409
1950	249
1951	334
1952	358
1953	298
1954	340
1955	419
1956	534
1957	485
1958	431
1959	348
1960	972
1961	430
1962	585
1963	297
1964	411
1965	174
1966	893
1967	831
1968	545
1969	933
1970	541
1971	772
1972	814
1973	1,074
1974	439
1975	713
1976	220
1977	787
1978	566
1979	997
1980	503
1981	799
1982	997
1983	844
1984	638
1985	519
1986	771
1987	687
1988	1,599
1989	1,221
1990	2,255
1991	852
1992	1,131
1993	3,353
1994	1,405
1995	1,372
1996	706
1997	1,500
1998	847
1999	1,269
2000	458
2001	930
2002	1,317
2003	1,157
2004	1,046
2005	1,099
2006	688
2007	1,420
2008	903
2009	744
2010	675
2011	730
2012	2,297
2013	1,486
2014	397
2015	1,573
2016	948
2017	1,497
2018	538
2019	861
2020	1,128
2021	916
2022	491
2023	768
2024	1,401
2025	1,162
2026	877

Download the Data

Data for records on 1918-03-15: 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).

Histogram of margins by which records were beaten on 15 March 1918
Margin	Records
0 to 10	38
10 to 20	14
20 to 30	6
30 to 40	6
40 to 50	5
50 to 60	3