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Built 2026-10-15 (15 October 2026)

Weather Records on 21 August 1915

21 weather records were set or tied worldwide on 21 August 1915. Highest significance: Putbus, DE.

Key Facts for 21 August 1915

  • On 21 August 1915, 21 weather records were set or tied at long-record stations worldwide.
  • 4 were record highs and 10 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 21 daily.
  • Putbus set a daily record precipitation of 39.1 mm (1.5 in) on 21 August 1915.
  • Across 165 earlier years (1800 to 2026) the same calendar date averaged 453 records.

Record Map

21 stations
Weather records on 21 August 1915 21 station records on 21 August 1915 are marked on the map, coloured by record type.
21 station records on 21 August 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 August 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
PutbusGermanyRecord daily precipitation39.1 mm (1.5 in)31 of 100 (Routine)
Greenville Dwtn APUnited StatesRecord low maximum temperature22.2 C (72.0 F)23 of 100 (Routine)
Morgantown 1United StatesRecord daily precipitation22.9 mm (0.9 in)20 of 100 (Routine)
Portland Rfc CityUnited StatesRecord high minimum temperature20.6 C (69.1 F)18 of 100 (Routine)
TbilisiGeorgiaRecord daily precipitation17.6 mm (0.7 in)17 of 100 (Routine)
Greenville Dwtn APUnited StatesRecord low minimum temperature14.4 C (57.9 F)16 of 100 (Routine)
Portland Rfc CityUnited StatesRecord high maximum temperature35.6 C (96.1 F)15 of 100 (Routine)
FreiburgGermanyRecord low maximum temperature14.4 C (57.9 F)14 of 100 (Routine)
Anticosti SW PointCanadaRecord low minimum temperature4.4 C (39.9 F)13 of 100 (Routine)
Leipzig-HolzhausenGermanyRecord low maximum temperature15.7 C (60.3 F)13 of 100 (Routine)
Greenville Dwtn APUnited StatesRecord daily precipitation24.6 mm (1.0 in)13 of 100 (Routine)
KarlsruheGermanyRecord low maximum temperature16.1 C (61.0 F)12 of 100 (Routine)
Ladismith (Tnk)South AfricaRecord daily precipitation3.8 mm (0.15 in)12 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord high minimum temperature14.4 C (57.9 F)12 of 100 (Routine)
Lexington Bluegrass APUnited StatesRecord low maximum temperature19.4 C (66.9 F)12 of 100 (Routine)
FreiburgGermanyRecord low minimum temperature6.9 C (44.4 F)11 of 100 (Routine)
Toledo BladeUnited StatesRecord low maximum temperature20.0 C (68.0 F)11 of 100 (Routine)
GorlitzGermanyRecord low maximum temperature15.1 C (59.2 F)8 of 100 (Routine)
Ilulissat (Jakobshavn)Greenland [Denmark]Record daily precipitation13.5 mm (0.5 in)6 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high minimum temperature24.0 C (75.2 F)5 of 100 (Routine)
ParisCanadaRecord daily precipitation20.3 mm (0.8 in)4 of 100 (Routine)

Counts by Type and Timescale

21 records
Records on 21 August 1915 by type Records set or tied on 21 August 1915 by type: Highest daily maximum 1, Lowest daily maximum 7, Highest daily minimum 3, Lowest daily minimum 3, Heaviest daily rainfall 7. 02468Highest daily maximum: 1Lowest daily maximum: 7Highest daily minimum: 3Lowest daily minimum: 3Heaviest daily rainfall: 7Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 August 1915 by type: Highest daily maximum 1, Lowest daily maximum 7, Highest daily minimum 3, Lowest daily minimum 3, Heaviest daily rainfall 7.
Records on 21 August 1915 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum7
Highest daily minimum3
Lowest daily minimum3
Heaviest daily rainfall7
Heaviest daily snowfall0
Deepest snow cover0
Records on 21 August 1915 by timescale Records on 21 August 1915 by timescale: all-time 0, monthly 0, daily 21. 0102030all-time: 0monthly: 0daily: 21all-timemonthlydaily
Records on 21 August 1915 by timescale: all-time 0, monthly 0, daily 21.
Records on 21 August 1915 by timescale
TimescaleRecords
all-time0
monthly0
daily21

How Much Records Were Beaten By

20 broken records
Histogram of margins by which records were beaten on 21 August 1915 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 20.6. Ties are not counted. 051015200 to 5: 165 to 10: 110 to 15: 115 to 20: 120 to 25: 10 to 55 to 1010 to 1515 to 2020 to 25
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 20.6. Ties are not counted.
Histogram of margins by which records were beaten on 21 August 1915
MarginRecords
0 to 516
5 to 101
10 to 151
15 to 201
20 to 251

Top 20 by Significance

21 August 1915
Top 20 records on 21 August 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 August 1915Putbus, DEdaily rain39.1 mm (1.5 in)15.5 mm (0.6 in)14 years31 of 100 (Routine)
21 August 1915Greenville Dwtn AP, USdaily low max22.2 C (72.0 F)3.9 C (7.0 F)28 years23 of 100 (Routine)
21 August 1915Morgantown 1, USdaily rain22.9 mm (0.9 in)20.6 mm (0.8 in)40 years20 of 100 (Routine)
21 August 1915Portland Rfc City, USdaily high min20.6 C (69.1 F)2.3 C (4.1 F)17 years18 of 100 (Routine)
21 August 1915Tbilisi, GEdaily rain17.6 mm (0.7 in)7.5 mm (0.30 in)12 years17 of 100 (Routine)
21 August 1915Greenville Dwtn AP, USdaily low min14.4 C (57.9 F)1.2 C (2.2 F)28 years16 of 100 (Routine)
21 August 1915Portland Rfc City, USdaily high max35.6 C (96.1 F)2.8 C (5.0 F)17 years15 of 100 (Routine)
21 August 1915Freiburg, DEdaily low max14.4 C (57.9 F)1.6 C (2.9 F)27 years14 of 100 (Routine)
21 August 1915Anticosti SW Point, CAdaily low min4.4 C (39.9 F)1.2 C (2.2 F)22 years13 of 100 (Routine)
21 August 1915Leipzig-Holzhausen, DEdaily low max15.7 C (60.3 F)1.0 C (1.8 F)20 years13 of 100 (Routine)
21 August 1915Greenville Dwtn AP, USdaily rain24.6 mm (1.0 in)10.1 mm (0.4 in)19 years13 of 100 (Routine)
21 August 1915Karlsruhe, DEdaily low max16.1 C (61.0 F)0.9 C (1.6 F)20 years12 of 100 (Routine)
21 August 1915Ladismith (Tnk), ZAdaily rain3.8 mm (0.15 in)0.8 mm (0.03 in)26 years12 of 100 (Routine)
21 August 1915Olympia Priest Pt Park, USdaily high min14.4 C (57.9 F)0.5 C (0.9 F)28 years12 of 100 (Routine)
21 August 1915Lexington Bluegrass AP, USdaily low max19.4 C (66.9 F)2.3 C (4.1 F)4 years12 of 100 (Routine)
21 August 1915Freiburg, DEdaily low min6.9 C (44.4 F)1.1 C (2.0 F)15 years11 of 100 (Routine)
21 August 1915Toledo Blade, USdaily low max20.0 C (68.0 F)0.6 C (1.1 F)20 years11 of 100 (Routine)
21 August 1915Gorlitz, DEdaily low max15.1 C (59.2 F)0.4 C (0.7 F)15 years8 of 100 (Routine)
21 August 1915Ilulissat (Jakobshavn), GLdaily rain13.5 mm (0.5 in)0.8 mm (0.03 in)5 years6 of 100 (Routine)
21 August 1915Oran-Hopital Militaire, DZdaily high min (Tie)24.0 C (75.2 F)tie48 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 1915
Records on 08-21 in each year Records set or tied on this calendar date in each year from 1800 to 1915. 1915 had 21 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 1915. 1915 had 21 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 1915-08-21: 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).