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Built 2026-10-15 (15 October 2026)

Weather Records on 21 May 1903

26 weather records were set or tied worldwide on 21 May 1903. Highest significance: Cape Northumberland, AU.

Key Facts for 21 May 1903

  • On 21 May 1903, 26 weather records were set or tied at long-record stations worldwide.
  • 9 were record highs and 0 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 26 daily.
  • Cape Northumberland set a daily record precipitation of 28.4 mm (1.1 in) on 21 May 1903.
  • Across 155 earlier years (1793 to 2025) the same calendar date averaged 464 records.

Record Map

26 stations
Weather records on 21 May 1903 26 station records on 21 May 1903 are marked on the map, coloured by record type.
26 station records on 21 May 1903 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 May 1903: highest significance records shown on the map
StationCountryTypeValueSignificance
Cape NorthumberlandAustraliaRecord daily precipitation28.4 mm (1.1 in)33 of 100 (Routine)
Ararat Post OfficeAustraliaRecord daily precipitation32.0 mm (1.3 in)31 of 100 (Routine)
Emmaville (Strathbogie)AustraliaRecord daily precipitation34.3 mm (1.4 in)21 of 100 (Routine)
TorontoCanadaRecord high maximum temperature28.3 C (82.9 F)21 of 100 (Routine)
Armidale (Radio Station 2Ad)AustraliaRecord daily precipitation22.9 mm (0.9 in)20 of 100 (Routine)
Wentworth Post OfficeAustraliaRecord daily precipitation15.0 mm (0.6 in)20 of 100 (Routine)
MarylandAustraliaRecord daily precipitation24.9 mm (1.0 in)19 of 100 (Routine)
World Trade CtrUnited StatesRecord high minimum temperature20.6 C (69.1 F)18 of 100 (Routine)
Bendigo PrisonAustraliaRecord daily precipitation14.2 mm (0.6 in)17 of 100 (Routine)
Bathurst GaolAustraliaRecord high minimum temperature10.3 C (50.5 F)16 of 100 (Routine)
Tenterfield (Federation Park)AustraliaRecord daily precipitation16.0 mm (0.6 in)14 of 100 (Routine)
Murrurundi Post OfficeAustraliaRecord daily precipitation14.2 mm (0.6 in)14 of 100 (Routine)
Baltimore Customs HouseUnited StatesRecord high minimum temperature21.1 C (70.0 F)11 of 100 (Routine)
Newark Liberty Intl APUnited StatesRecord high maximum temperature31.7 C (89.1 F)11 of 100 (Routine)
Muswellbrook (Lower Hill St)AustraliaRecord daily precipitation6.4 mm (0.25 in)10 of 100 (Routine)
StawellAustraliaRecord daily precipitation39.1 mm (1.5 in)10 of 100 (Routine)
Orange Post OfficeAustraliaRecord daily precipitation29.2 mm (1.1 in)9 of 100 (Routine)
Madison Wb CityUnited StatesRecord daily precipitation18.5 mm (0.7 in)9 of 100 (Routine)
Ny City Cntrl ParkUnited StatesRecord high minimum temperature19.4 C (66.9 F)9 of 100 (Routine)
Swan Hill (Murray Downs)AustraliaRecord daily precipitation4.6 mm (0.18 in)8 of 100 (Routine)
Port MorienCanadaRecord daily precipitation9.9 mm (0.39 in)8 of 100 (Routine)
DaylesfordAustraliaRecord daily precipitation18.8 mm (0.7 in)7 of 100 (Routine)
Kyneton Post OfficeAustraliaRecord daily precipitation15.7 mm (0.6 in)7 of 100 (Routine)
World Trade CtrUnited StatesRecord high maximum temperature30.0 C (86.0 F)6 of 100 (Routine)
Trenton 2United StatesRecord high maximum temperature31.1 C (88.0 F)2 of 100 (Routine)
HalifaxCanadaRecord high maximum temperature24.4 C (75.9 F)0 of 100 (Routine)

Counts by Type and Timescale

26 records
Records on 21 May 1903 by type Records set or tied on 21 May 1903 by type: Highest daily maximum 5, Highest daily minimum 4, Heaviest daily rainfall 17. 05101520Highest daily maximum: 5Lowest daily maximum: 0Highest daily minimum: 4Lowest daily minimum: 0Heaviest daily rainfall: 17Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 May 1903 by type: Highest daily maximum 5, Highest daily minimum 4, Heaviest daily rainfall 17.
Records on 21 May 1903 by type
Record typeRecords
Highest daily maximum5
Lowest daily maximum0
Highest daily minimum4
Lowest daily minimum0
Heaviest daily rainfall17
Heaviest daily snowfall0
Deepest snow cover0
Records on 21 May 1903 by timescale Records on 21 May 1903 by timescale: all-time 0, monthly 0, daily 26. 0102030all-time: 0monthly: 0daily: 26all-timemonthlydaily
Records on 21 May 1903 by timescale: all-time 0, monthly 0, daily 26.
Records on 21 May 1903 by timescale
TimescaleRecords
all-time0
monthly0
daily26

How Much Records Were Beaten By

24 broken records
Histogram of margins by which records were beaten on 21 May 1903 Margins by which the 24 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 24.1. Ties are not counted. 0510150 to 5: 145 to 10: 510 to 15: 315 to 20: 120 to 25: 10 to 55 to 1010 to 1515 to 2020 to 25
Margins by which the 24 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 24.1. Ties are not counted.
Histogram of margins by which records were beaten on 21 May 1903
MarginRecords
0 to 514
5 to 105
10 to 153
15 to 201
20 to 251

Top 20 by Significance

21 May 1903
Top 20 records on 21 May 1903 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 May 1903Cape Northumberland, AUdaily rain28.4 mm (1.1 in)14.4 mm (0.6 in)13 years33 of 100 (Routine)
21 May 1903Ararat Post Office, AUdaily rain32.0 mm (1.3 in)12.4 mm (0.5 in)23 years31 of 100 (Routine)
21 May 1903Emmaville (Strathbogie), AUdaily rain34.3 mm (1.4 in)24.1 mm (0.9 in)6 years21 of 100 (Routine)
21 May 1903Toronto, CAdaily high max28.3 C (82.9 F)2.2 C (4.0 F)38 years21 of 100 (Routine)
21 May 1903Armidale (Radio Station 2Ad), AUdaily rain22.9 mm (0.9 in)16.5 mm (0.6 in)39 years20 of 100 (Routine)
21 May 1903Wentworth Post Office, AUdaily rain15.0 mm (0.6 in)11.7 mm (0.5 in)6 years20 of 100 (Routine)
21 May 1903Maryland, AUdaily rain24.9 mm (1.0 in)7.6 mm (0.30 in)26 years19 of 100 (Routine)
21 May 1903World Trade Ctr, USdaily high min20.6 C (69.1 F)3.4 C (6.1 F)22 years18 of 100 (Routine)
21 May 1903Bendigo Prison, AUdaily rain14.2 mm (0.6 in)6.6 mm (0.26 in)13 years17 of 100 (Routine)
21 May 1903Bathurst Gaol, AUdaily high min10.3 C (50.5 F)2.0 C (3.6 F)23 years16 of 100 (Routine)
21 May 1903Tenterfield (Federation Park), AUdaily rain16.0 mm (0.6 in)8.9 mm (0.35 in)6 years14 of 100 (Routine)
21 May 1903Murrurundi Post Office, AUdaily rain14.2 mm (0.6 in)4.8 mm (0.19 in)23 years14 of 100 (Routine)
21 May 1903Baltimore Customs House, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)25 years11 of 100 (Routine)
21 May 1903Newark Liberty Intl AP, USdaily high max31.7 C (89.1 F)0.6 C (1.1 F)15 years11 of 100 (Routine)
21 May 1903Muswellbrook (Lower Hill St), AUdaily rain6.4 mm (0.25 in)3.4 mm (0.13 in)13 years10 of 100 (Routine)
21 May 1903Stawell, AUdaily rain39.1 mm (1.5 in)0.7 mm (0.03 in)23 years10 of 100 (Routine)
21 May 1903Orange Post Office, AUdaily rain29.2 mm (1.1 in)5.3 mm (0.21 in)6 years9 of 100 (Routine)
21 May 1903Madison Wb City, USdaily rain18.5 mm (0.7 in)6.1 mm (0.24 in)0 years9 of 100 (Routine)
21 May 1903Ny City Cntrl Park, USdaily high min19.4 C (66.9 F)1.1 C (2.0 F)15 years9 of 100 (Routine)
21 May 1903Swan Hill (Murray Downs), AUdaily rain4.6 mm (0.18 in)2.8 mm (0.11 in)3 years8 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 1903
Records on 05-21 in each year Records set or tied on this calendar date in each year from 1793 to 1903. 1903 had 26 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: 5212019: 1,6572020: 7032021: 1,1282022: 1,5042023: 7912024: 7532025: 7771793188519021918193419501966198219982014
Records set or tied on this calendar date in each year from 1793 to 1903. 1903 had 26 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
2018521
20191,657
2020703
20211,128
20221,504
2023791
2024753
2025777

Download the Data

  • Data for records on 1903-05-21: 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 (2025-12-31).