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Weather Records on 21 May 1915

24 weather records were set or tied worldwide on 21 May 1915. Highest significance: Bathurst Gaol, AU.

Key Facts for 21 May 1915

  • On 21 May 1915, 24 weather records were set or tied at long-record stations worldwide.
  • 3 were record highs and 7 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 24 daily.
  • Bathurst Gaol set a daily record low maximum temperature of 8.1 C (46.6 F) on 21 May 1915.
  • Across 156 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

24 stations
Weather records on 21 May 1915 24 station records on 21 May 1915 are marked on the map, coloured by record type.
24 station records on 21 May 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 May 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
Bathurst GaolAustraliaRecord low maximum temperature8.1 C (46.6 F)26 of 100 (Routine)
Sydney (Observatory Hill)AustraliaRecord low minimum temperature6.7 C (44.1 F)23 of 100 (Routine)
GalwayIrelandRecord daily precipitation20.4 mm (0.8 in)20 of 100 (Routine)
PalermoItalyRecord daily precipitation14.9 mm (0.6 in)20 of 100 (Routine)
OrilliaCanadaRecord daily precipitation14.5 mm (0.6 in)19 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low maximum temperature10.6 C (51.1 F)17 of 100 (Routine)
PoplitahAustraliaRecord daily precipitation2.3 mm (0.09 in)16 of 100 (Routine)
Dordrecht - Tnk 14South AfricaRecord daily precipitation9.4 mm (0.37 in)16 of 100 (Routine)
Chattanooga Wb CityUnited StatesRecord high minimum temperature20.0 C (68.0 F)15 of 100 (Routine)
State CollegeUnited StatesRecord daily precipitation26.4 mm (1.0 in)14 of 100 (Routine)
Walgett Council DepotAustraliaRecord low minimum temperature1.4 C (34.5 F)13 of 100 (Routine)
Sydney (Observatory Hill)AustraliaRecord low maximum temperature13.3 C (55.9 F)13 of 100 (Routine)
Gunnedah PoolAustraliaRecord low maximum temperature14.4 C (57.9 F)12 of 100 (Routine)
WiartonCanadaRecord daily precipitation8.1 mm (0.32 in)12 of 100 (Routine)
Zagreb-GricCroatiaRecord daily precipitation23.2 mm (0.9 in)12 of 100 (Routine)
Carrieton (Pamatta)AustraliaRecord daily precipitation3.3 mm (0.13 in)10 of 100 (Routine)
GravenhurstCanadaRecord daily precipitation11.9 mm (0.5 in)10 of 100 (Routine)
Fredericton UnbCanadaRecord low minimum temperature-1.1 C (30.0 F)7 of 100 (Routine)
Quorn (Olive Grove)AustraliaRecord daily precipitation11.4 mm (0.4 in)5 of 100 (Routine)
Haliburton ACanadaRecord daily precipitation15.2 mm (0.6 in)4 of 100 (Routine)
VenterstadSouth AfricaRecord daily precipitation3.3 mm (0.13 in)4 of 100 (Routine)
Prince AlbertCanadaRecord high maximum temperature25.6 C (78.1 F)2 of 100 (Routine)
WestminsterCanadaRecord daily precipitation4.3 mm (0.17 in)1 of 100 (Routine)
DurhamUnited KingdomRecord high minimum temperature10.0 C (50.0 F)1 of 100 (Routine)

Counts by Type and Timescale

24 records
Records on 21 May 1915 by type Records set or tied on 21 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 4, Highest daily minimum 2, Lowest daily minimum 3, Heaviest daily rainfall 14. 051015Highest daily maximum: 1Lowest daily maximum: 4Highest daily minimum: 2Lowest daily minimum: 3Heaviest daily rainfall: 14Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 4, Highest daily minimum 2, Lowest daily minimum 3, Heaviest daily rainfall 14.
Records on 21 May 1915 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum4
Highest daily minimum2
Lowest daily minimum3
Heaviest daily rainfall14
Heaviest daily snowfall0
Deepest snow cover0
Records on 21 May 1915 by timescale Records on 21 May 1915 by timescale: all-time 0, monthly 0, daily 24. 0102030all-time: 0monthly: 0daily: 24all-timemonthlydaily
Records on 21 May 1915 by timescale: all-time 0, monthly 0, daily 24.
Records on 21 May 1915 by timescale
TimescaleRecords
all-time0
monthly0
daily24

How Much Records Were Beaten By

21 broken records
Histogram of margins by which records were beaten on 21 May 1915 Margins by which the 21 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 14.0. Ties are not counted. 0510150 to 2: 132 to 4: 54 to 6: 26 to 8: 08 to 10: 010 to 12: 012 to 14: 10 to 22 to 44 to 66 to 88 to 1010 to 1212 to 14
Margins by which the 21 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 14.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 May 1915
MarginRecords
0 to 213
2 to 45
4 to 62
6 to 80
8 to 100
10 to 120
12 to 141

Top 20 by Significance

21 May 1915
Top 20 records on 21 May 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 May 1915Bathurst Gaol, AUdaily low max8.1 C (46.6 F)1.9 C (3.4 F)55 years26 of 100 (Routine)
21 May 1915Sydney (Observatory Hill), AUdaily low min6.7 C (44.1 F)0.5 C (0.9 F)55 years23 of 100 (Routine)
21 May 1915Galway, IEdaily rain20.4 mm (0.8 in)14.0 mm (0.6 in)15 years20 of 100 (Routine)
21 May 1915Palermo, ITdaily rain14.9 mm (0.6 in)5.1 mm (0.20 in)20 years20 of 100 (Routine)
21 May 1915Orillia, CAdaily rain14.5 mm (0.6 in)2.3 mm (0.09 in)42 years19 of 100 (Routine)
21 May 1915La Crosse Wb City, USdaily low max10.6 C (51.1 F)2.7 C (4.9 F)31 years17 of 100 (Routine)
21 May 1915Poplitah, AUdaily rain2.3 mm (0.09 in)2.3 mm (0.09 in)36 years16 of 100 (Routine)
21 May 1915Dordrecht - Tnk 14, ZAdaily rain9.4 mm (0.37 in)3.3 mm (0.13 in)32 years16 of 100 (Routine)
21 May 1915Chattanooga Wb City, USdaily high min20.0 C (68.0 F)1.1 C (2.0 F)34 years15 of 100 (Routine)
21 May 1915State College, USdaily rain26.4 mm (1.0 in)4.3 mm (0.17 in)23 years14 of 100 (Routine)
21 May 1915Walgett Council Depot, AUdaily low min1.4 C (34.5 F)0.8 C (1.4 F)29 years13 of 100 (Routine)
21 May 1915Sydney (Observatory Hill), AUdaily low max13.3 C (55.9 F)0.8 C (1.4 F)19 years13 of 100 (Routine)
21 May 1915Gunnedah Pool, AUdaily low max14.4 C (57.9 F)1.2 C (2.2 F)17 years12 of 100 (Routine)
21 May 1915Wiarton, CAdaily rain8.1 mm (0.32 in)2.0 mm (0.08 in)25 years12 of 100 (Routine)
21 May 1915Zagreb-Gric, HRdaily rain23.2 mm (0.9 in)0.1 mm (0.00 in)24 years12 of 100 (Routine)
21 May 1915Carrieton (Pamatta), AUdaily rain3.3 mm (0.13 in)0.5 mm (0.02 in)24 years10 of 100 (Routine)
21 May 1915Gravenhurst, CAdaily rain11.9 mm (0.5 in)0.5 mm (0.02 in)20 years10 of 100 (Routine)
21 May 1915Fredericton Unb, CAdaily low min-1.1 C (30.0 F)0.5 C (0.9 F)8 years7 of 100 (Routine)
21 May 1915Quorn (Olive Grove), AUdaily rain11.4 mm (0.4 in)1.2 mm (0.05 in)8 years5 of 100 (Routine)
21 May 1915Haliburton A, CAdaily rain15.2 mm (0.6 in)1.5 mm (0.06 in)1 year4 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

1793 to 1915
Records on 05-21 in each year Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 24 records. 01,0002,0003,0001793: 11795: 11811: 11837: 21842: 11847: 21854: 11857: 11858: 11865: 11866: 11870: 21875: 11876: 11880: 21882: 11885: 11886: 21887: 31889: 51890: 31891: 61892: 11893: 11894: 41895: 41896: 51897: 21898: 11899: 51900: 11901: 31902: 41903: 261904: 81905: 71906: 121907: 361908: 131909: 131910: 141911: 871912: 241913: 131914: 261915: 241916: 131917: 761918: 511919: 1701920: 391921: 1581922: 391923: 1251924: 1481925: 2501926: 2211927: 2071928: 1731929: 2471930: 1331931: 4881932: 3431933: 2901934: 5901935: 1901936: 3281937: 2271938: 3481939: 3551940: 4561941: 5251942: 4821943: 4631944: 3101945: 5151946: 3241947: 4851948: 3121949: 5931950: 4031951: 2711952: 3851953: 5011954: 9611955: 5071956: 4091957: 7091958: 5111959: 6841960: 6151961: 3061962: 5531963: 5981964: 7881965: 2381966: 2961967: 1,0221968: 5491969: 8321970: 4491971: 5361972: 5571973: 4931974: 8471975: 1,1601976: 3931977: 7561978: 5751979: 7871980: 8571981: 1,5501982: 5991983: 1,1061984: 9501985: 6101986: 9081987: 1,2421988: 8191989: 6711990: 9471991: 1,0651992: 1,1431993: 1,1971994: 6561995: 7491996: 1,4611997: 9531998: 1,2001999: 5442000: 8972001: 1,1872002: 2,0482003: 8072004: 8982005: 1,0202006: 8102007: 8942008: 7402009: 1,3152010: 9622011: 9592012: 8482013: 8842014: 5222015: 9562016: 5672017: 7802018: 5252019: 1,6682020: 7072021: 1,1312022: 1,5122023: 7942024: 7512025: 7762026: 3561793188519021918193419501966198219982014
Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 24 records.
Counts for years before the ledger starts come from the same station rules.
Records on 05-21 in each year
YearRecords
17931
17951
18111
18372
18421
18472
18541
18571
18581
18651
18661
18702
18751
18761
18802
18821
18851
18862
18873
18895
18903
18916
18921
18931
18944
18954
18965
18972
18981
18995
19001
19013
19024
190326
19048
19057
190612
190736
190813
190913
191014
191187
191224
191313
191426
191524
191613
191776
191851
1919170
192039
1921158
192239
1923125
1924148
1925250
1926221
1927207
1928173
1929247
1930133
1931488
1932343
1933290
1934590
1935190
1936328
1937227
1938348
1939355
1940456
1941525
1942482
1943463
1944310
1945515
1946324
1947485
1948312
1949593
1950403
1951271
1952385
1953501
1954961
1955507
1956409
1957709
1958511
1959684
1960615
1961306
1962553
1963598
1964788
1965238
1966296
19671,022
1968549
1969832
1970449
1971536
1972557
1973493
1974847
19751,160
1976393
1977756
1978575
1979787
1980857
19811,550
1982599
19831,106
1984950
1985610
1986908
19871,242
1988819
1989671
1990947
19911,065
19921,143
19931,197
1994656
1995749
19961,461
1997953
19981,200
1999544
2000897
20011,187
20022,048
2003807
2004898
20051,020
2006810
2007894
2008740
20091,315
2010962
2011959
2012848
2013884
2014522
2015956
2016567
2017780
2018525
20191,668
2020707
20211,131
20221,512
2023794
2024751
2025776
2026356

Download the Data

  • Data for records on 1915-05-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).