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Built 2026-10-16 (16 October 2026)

Weather Records on 21 August 1921

34 weather records were set or tied worldwide on 21 August 1921. Highest significance: Cape Borda Comparison, AU.

Key Facts for 21 August 1921

  • On 21 August 1921, 34 weather records were set or tied at long-record stations worldwide.
  • 12 were record highs and 14 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 33 daily.
  • Cape Borda Comparison set a daily record precipitation of 48.8 mm (1.9 in) on 21 August 1921.
  • Across 165 earlier years (1800 to 2026) the same calendar date averaged 452 records.

Record Map

34 stations
Weather records on 21 August 1921 34 station records on 21 August 1921 are marked on the map, coloured by record type.
34 station records on 21 August 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 August 1921: highest significance records shown on the map
StationCountryTypeValueSignificance
Cape Borda ComparisonAustraliaRecord daily precipitation48.8 mm (1.9 in)48 of 100 (Notable)
NeedlesUnited StatesRecord daily precipitation48.8 mm (1.9 in)30 of 100 (Routine)
NovorossijskRussiaRecord daily precipitation29.0 mm (1.1 in)24 of 100 (Routine)
BeatriceCanadaRecord low minimum temperature1.7 C (35.1 F)17 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low minimum temperature7.8 C (46.0 F)17 of 100 (Routine)
Chatillon-Sur-SeineFranceRecord daily precipitation23.0 mm (0.9 in)16 of 100 (Routine)
Kirchdorf/PoelGermanyRecord high maximum temperature28.5 C (83.3 F)16 of 100 (Routine)
Sidi-Bel-AbbesAlgeriaRecord low maximum temperature28.0 C (82.4 F)15 of 100 (Routine)
Inskip Point LighthouseAustraliaRecord daily precipitation16.5 mm (0.6 in)15 of 100 (Routine)
EkaterinburgRussiaRecord high maximum temperature29.8 C (85.6 F)13 of 100 (Routine)
StokesAustraliaRecord daily precipitation15.2 mm (0.6 in)12 of 100 (Routine)
Woody IslandAustraliaRecord daily precipitation6.1 mm (0.24 in)10 of 100 (Routine)
Cape Otway LighthouseAustraliaRecord high minimum temperature13.3 C (55.9 F)10 of 100 (Routine)
Cleveland 2717 EuclidUnited StatesRecord low maximum temperature17.8 C (64.0 F)10 of 100 (Routine)
BancroftCanadaRecord low minimum temperature1.7 C (35.1 F)9 of 100 (Routine)
JakutskRussiaRecord low minimum temperature0.5 C (32.9 F)9 of 100 (Routine)
BatesvilleUnited StatesRecord high maximum temperature37.2 C (99.0 F)9 of 100 (Routine)
WeldonUnited StatesRecord high maximum temperature37.2 C (99.0 F)9 of 100 (Routine)
Adelaide West TerraceAustraliaRecord high maximum temperature24.3 C (75.7 F)6 of 100 (Routine)
GospicCroatiaRecord daily precipitation11.9 mm (0.5 in)5 of 100 (Routine)
BiskraAlgeriaRecord high minimum temperature32.0 C (89.6 F)3 of 100 (Routine)
Stoney CreekCanadaRecord low maximum temperature20.0 C (68.0 F)3 of 100 (Routine)
GavleSwedenRecord high maximum temperature24.0 C (75.2 F)3 of 100 (Routine)
ConstantineAlgeriaRecord high maximum temperature39.0 C (102.2 F)2 of 100 (Routine)
Nemours (Ghazaouet)AlgeriaRecord low maximum temperature26.0 C (78.8 F)2 of 100 (Routine)
Nemours (Ghazaouet)AlgeriaRecord low minimum temperature16.0 C (60.8 F)2 of 100 (Routine)
Haliburton ACanadaRecord low minimum temperature1.7 C (35.1 F)2 of 100 (Routine)
Clausthal-ZellerfeldGermanyRecord high minimum temperature15.2 C (59.4 F)2 of 100 (Routine)
HaparandaSwedenRecord high minimum temperature13.0 C (55.4 F)2 of 100 (Routine)
LucknowCanadaRecord low minimum temperature3.9 C (39.0 F)1 of 100 (Routine)
Stoney CreekCanadaRecord low minimum temperature7.8 C (46.0 F)1 of 100 (Routine)
Anticosti SW PointCanadaRecord low maximum temperature11.1 C (52.0 F)1 of 100 (Routine)
Toledo BladeUnited StatesRecord low maximum temperature20.0 C (68.0 F)1 of 100 (Routine)
TunisTunisiaRecord high minimum temperature25.0 C (77.0 F)0 of 100 (Routine)

Counts by Type and Timescale

34 records
Records on 21 August 1921 by type Records set or tied on 21 August 1921 by type: Highest daily maximum 7, Lowest daily maximum 6, Highest daily minimum 5, Lowest daily minimum 8, Heaviest daily rainfall 8. 02468Highest daily maximum: 7Lowest daily maximum: 6Highest daily minimum: 5Lowest daily minimum: 8Heaviest daily rainfall: 8Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 August 1921 by type: Highest daily maximum 7, Lowest daily maximum 6, Highest daily minimum 5, Lowest daily minimum 8, Heaviest daily rainfall 8.
Records on 21 August 1921 by type
Record typeRecords
Highest daily maximum7
Lowest daily maximum6
Highest daily minimum5
Lowest daily minimum8
Heaviest daily rainfall8
Heaviest daily snowfall0
Deepest snow cover0
Records on 21 August 1921 by timescale Records on 21 August 1921 by timescale: all-time 0, monthly 1, daily 33. 010203040all-time: 0monthly: 1daily: 33all-timemonthlydaily
Records on 21 August 1921 by timescale: all-time 0, monthly 1, daily 33.
Records on 21 August 1921 by timescale
TimescaleRecords
all-time0
monthly1
daily33

How Much Records Were Beaten By

20 broken records
Histogram of margins by which records were beaten on 21 August 1921 Margins by which the 20 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 42.4. Ties are not counted. 051015200 to 10: 1710 to 20: 220 to 30: 030 to 40: 040 to 50: 10 to 1010 to 2020 to 3030 to 4040 to 50
Margins by which the 20 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 42.4. Ties are not counted.
Histogram of margins by which records were beaten on 21 August 1921
MarginRecords
0 to 1017
10 to 202
20 to 300
30 to 400
40 to 501

Top 20 by Significance

21 August 1921
Top 20 records on 21 August 1921 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 August 1921Cape Borda Comparison, AUdaily rain48.8 mm (1.9 in)19.8 mm (0.8 in)28 years48 of 100 (Notable)
21 August 1921Needles, USdaily rain48.8 mm (1.9 in)42.4 mm (1.7 in)15 years30 of 100 (Routine)
21 August 1921Novorossijsk, RUdaily rain29.0 mm (1.1 in)15.2 mm (0.6 in)11 years24 of 100 (Routine)
21 August 1921Beatrice, CAdaily low min1.7 C (35.1 F)1.6 C (2.9 F)33 years17 of 100 (Routine)
21 August 1921La Crosse Wb City, USdaily low min7.8 C (46.0 F)2.2 C (4.0 F)25 years17 of 100 (Routine)
21 August 1921Chatillon-Sur-Seine, FRdaily rain23.0 mm (0.9 in)5.5 mm (0.22 in)16 years16 of 100 (Routine)
21 August 1921Kirchdorf/Poel, DEdaily high max28.5 C (83.3 F)1.5 C (2.7 F)27 years16 of 100 (Routine)
21 August 1921Sidi-Bel-Abbes, DZdaily low max28.0 C (82.4 F)2.0 C (3.6 F)21 years15 of 100 (Routine)
21 August 1921Inskip Point Lighthouse, AUdaily rain16.5 mm (0.6 in)6.1 mm (0.24 in)26 years15 of 100 (Routine)
21 August 1921Ekaterinburg, RUdaily high max29.8 C (85.6 F)2.1 C (3.8 F)21 years13 of 100 (Routine)
21 August 1921Stokes, AUdaily rain15.2 mm (0.6 in)4.3 mm (0.17 in)4 years12 of 100 (Routine)
21 August 1921Woody Island, AUdaily rain6.1 mm (0.24 in)0.5 mm (0.02 in)23 years10 of 100 (Routine)
21 August 1921Cape Otway Lighthouse, AUdaily high min13.3 C (55.9 F)0.8 C (1.4 F)8 years10 of 100 (Routine)
21 August 1921Cleveland 2717 Euclid, USdaily low max17.8 C (64.0 F)0.5 C (0.9 F)14 years10 of 100 (Routine)
21 August 1921Bancroft, CAdaily low min1.7 C (35.1 F)1.1 C (2.0 F)12 years9 of 100 (Routine)
21 August 1921Jakutsk, RUdaily low min0.5 C (32.9 F)1.7 C (3.1 F)8 years9 of 100 (Routine)
21 August 1921Batesville, USdaily high max37.2 C (99.0 F)0.5 C (0.9 F)19 years9 of 100 (Routine)
21 August 1921Weldon, USdaily high max37.2 C (99.0 F)1.6 C (2.9 F)7 years9 of 100 (Routine)
21 August 1921Adelaide West Terrace, AUdaily high max24.3 C (75.7 F)0.4 C (0.7 F)7 years6 of 100 (Routine)
21 August 1921Gospic, HRdaily rain11.9 mm (0.5 in)1.3 mm (0.05 in)0 years5 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

1800 to 1921
Records on 08-21 in each year Records set or tied on this calendar date in each year from 1800 to 1921. 1921 had 34 records. 05001,0001,5002,0001800: 11802: 11804: 11807: 11816: 11818: 11832: 11834: 11839: 31843: 11847: 11849: 31850: 11851: 21863: 11866: 11867: 21870: 31871: 21872: 11873: 11876: 11877: 21879: 21884: 21885: 51886: 11887: 51888: 21889: 31890: 41891: 21893: 41894: 81895: 31896: 21897: 41898: 41899: 71900: 41901: 91902: 81903: 61904: 81905: 41906: 221907: 201908: 131909: 171910: 331911: 191912: 501913: 371914: 241915: 211916: 1061917: 1011918: 2021919: 191920: 591921: 341922: 581923: 1111924: 1351925: 2201926: 2271927: 2281928: 1101929: 2341930: 2971931: 2771932: 2641933: 3281934: 3201935: 3181936: 8071937: 7621938: 2391939: 6301940: 6831941: 1801942: 4151943: 4381944: 3461945: 5441946: 3901947: 9541948: 3051949: 5081950: 9581951: 6991952: 3681953: 3311954: 4971955: 8851956: 7011957: 4901958: 3891959: 7041960: 4901961: 6441962: 4691963: 3381964: 7941965: 4551966: 6611967: 5411968: 1,0141969: 6501970: 3731971: 6601972: 4411973: 4381974: 5641975: 5451976: 7561977: 7641978: 4451979: 7781980: 9041981: 1,0151982: 7691983: 1,4071984: 9751985: 6231986: 1,1661987: 7401988: 8891989: 8281990: 9101991: 8281992: 9571993: 6981994: 9681995: 9621996: 9501997: 1,2911998: 9481999: 7172000: 8612001: 7972002: 9652003: 1,2412004: 1,5852005: 1,0712006: 7972007: 1,8292008: 1,0122009: 1,3192010: 1,1552011: 1,0222012: 9902013: 5132014: 6242015: 6512016: 8902017: 3472018: 8162019: 6312020: 1,1472021: 7672022: 9172023: 1,8262024: 7772025: 1,2302026: 1,2891800187018951912192919461963198019972014
Records set or tied on this calendar date in each year from 1800 to 1921. 1921 had 34 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-21 in each year
YearRecords
18001
18021
18041
18071
18161
18181
18321
18341
18393
18431
18471
18493
18501
18512
18631
18661
18672
18703
18712
18721
18731
18761
18772
18792
18842
18855
18861
18875
18882
18893
18904
18912
18934
18948
18953
18962
18974
18984
18997
19004
19019
19028
19036
19048
19054
190622
190720
190813
190917
191033
191119
191250
191337
191424
191521
1916106
1917101
1918202
191919
192059
192134
192258
1923111
1924135
1925220
1926227
1927228
1928110
1929234
1930297
1931277
1932264
1933328
1934320
1935318
1936807
1937762
1938239
1939630
1940683
1941180
1942415
1943438
1944346
1945544
1946390
1947954
1948305
1949508
1950958
1951699
1952368
1953331
1954497
1955885
1956701
1957490
1958389
1959704
1960490
1961644
1962469
1963338
1964794
1965455
1966661
1967541
19681,014
1969650
1970373
1971660
1972441
1973438
1974564
1975545
1976756
1977764
1978445
1979778
1980904
19811,015
1982769
19831,407
1984975
1985623
19861,166
1987740
1988889
1989828
1990910
1991828
1992957
1993698
1994968
1995962
1996950
19971,291
1998948
1999717
2000861
2001797
2002965
20031,241
20041,585
20051,071
2006797
20071,829
20081,012
20091,319
20101,155
20111,022
2012990
2013513
2014624
2015651
2016890
2017347
2018816
2019631
20201,147
2021767
2022917
20231,826
2024777
20251,230
20261,289

Download the Data

  • Data for records on 1921-08-21: 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).