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Built 2026-10-19 (19 October 2026)

Weather Records on 20 August 1915

14 weather records were set or tied worldwide on 20 August 1915. Highest significance: Malvern, US.

Key Facts for 20 August 1915

  • On 20 August 1915, 14 weather records were set or tied at long-record stations worldwide.
  • 4 were record highs and 4 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 14 daily.
  • Malvern set a daily record precipitation of 47.5 mm (1.9 in) on 20 August 1915.
  • Across 163 earlier years (1797 to 2026) the same calendar date averaged 457 records.

Record Map

14 stations
Weather records on 20 August 1915 14 station records on 20 August 1915 are marked on the map, coloured by record type.
14 station records on 20 August 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 20 August 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
MalvernUnited StatesRecord daily precipitation47.5 mm (1.9 in)29 of 100 (Routine)
Portland Rfc CityUnited StatesRecord high maximum temperature32.8 C (91.0 F)19 of 100 (Routine)
Anticosti SW PointCanadaRecord low minimum temperature3.9 C (39.0 F)18 of 100 (Routine)
IrkutskRussiaRecord daily precipitation22.3 mm (0.9 in)15 of 100 (Routine)
AstrakanRussiaRecord daily precipitation4.4 mm (0.17 in)13 of 100 (Routine)
CullendaleSouth AfricaRecord daily precipitation7.4 mm (0.29 in)13 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord high maximum temperature31.7 C (89.1 F)12 of 100 (Routine)
WienAustriaRecord low maximum temperature17.1 C (62.8 F)10 of 100 (Routine)
KargopolRussiaRecord daily precipitation16.7 mm (0.7 in)9 of 100 (Routine)
George AirportSouth AfricaRecord daily precipitation8.1 mm (0.32 in)7 of 100 (Routine)
Visby_FlygplatsSwedenRecord low maximum temperature14.6 C (58.3 F)5 of 100 (Routine)
Prince AlbertCanadaRecord high minimum temperature14.4 C (57.9 F)1 of 100 (Routine)
HohenpeissenbergGermanyRecord low maximum temperature13.0 C (55.4 F)1 of 100 (Routine)
Winnemucca APUnited StatesRecord high maximum temperature35.6 C (96.1 F)1 of 100 (Routine)

Counts by Type and Timescale

14 records
Records on 20 August 1915 by type Records set or tied on 20 August 1915 by type: Highest daily maximum 3, Lowest daily maximum 3, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 6. 0246Highest daily maximum: 3Lowest daily maximum: 3Highest daily minimum: 1Lowest daily minimum: 1Heaviest daily rainfall: 6Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 20 August 1915 by type: Highest daily maximum 3, Lowest daily maximum 3, Highest daily minimum 1, Lowest daily minimum 1, Heaviest daily rainfall 6.
Records on 20 August 1915 by type
Record typeRecords
Highest daily maximum3
Lowest daily maximum3
Highest daily minimum1
Lowest daily minimum1
Heaviest daily rainfall6
Heaviest daily snowfall0
Deepest snow cover0
Records on 20 August 1915 by timescale Records on 20 August 1915 by timescale: all-time 0, monthly 0, daily 14. 051015all-time: 0monthly: 0daily: 14all-timemonthlydaily
Records on 20 August 1915 by timescale: all-time 0, monthly 0, daily 14.
Records on 20 August 1915 by timescale
TimescaleRecords
all-time0
monthly0
daily14

How Much Records Were Beaten By

11 broken records
Histogram of margins by which records were beaten on 20 August 1915 Margins by which the 11 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 31.8. Ties are not counted. 0358100 to 5: 105 to 10: 010 to 15: 015 to 20: 020 to 25: 025 to 30: 030 to 35: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 3030 to 35
Margins by which the 11 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 31.8. Ties are not counted.
Histogram of margins by which records were beaten on 20 August 1915
MarginRecords
0 to 510
5 to 100
10 to 150
15 to 200
20 to 250
25 to 300
30 to 351

Top 20 by Significance

20 August 1915
Top 14 records on 20 August 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
20 August 1915Malvern, USdaily rain47.5 mm (1.9 in)31.8 mm (1.3 in)18 years29 of 100 (Routine)
20 August 1915Portland Rfc City, USdaily high max32.8 C (91.0 F)1.7 C (3.1 F)39 years19 of 100 (Routine)
20 August 1915Anticosti SW Point, CAdaily low min3.9 C (39.0 F)1.7 C (3.1 F)32 years18 of 100 (Routine)
20 August 1915Irkutsk, RUdaily rain22.3 mm (0.9 in)2.3 mm (0.09 in)32 years15 of 100 (Routine)
20 August 1915Astrakan, RUdaily rain4.4 mm (0.17 in)0.4 mm (0.02 in)33 years13 of 100 (Routine)
20 August 1915Cullendale, ZAdaily rain7.4 mm (0.29 in)3.3 mm (0.13 in)21 years13 of 100 (Routine)
20 August 1915Olympia Priest Pt Park, USdaily high max31.7 C (89.1 F)1.7 C (3.1 F)17 years12 of 100 (Routine)
20 August 1915Wien, ATdaily low max17.1 C (62.8 F)0.7 C (1.3 F)12 years10 of 100 (Routine)
20 August 1915Kargopol, RUdaily rain16.7 mm (0.7 in)0.1 mm (0.00 in)21 years9 of 100 (Routine)
20 August 1915George Airport, ZAdaily rain8.1 mm (0.32 in)1.0 mm (0.04 in)14 years7 of 100 (Routine)
20 August 1915Visby_Flygplats, SEdaily low max14.6 C (58.3 F)0.4 C (0.7 F)4 years5 of 100 (Routine)
20 August 1915Prince Albert, CAdaily high min (Tie)14.4 C (57.9 F)tie12 years1 of 100 (Routine)
20 August 1915Hohenpeissenberg, DEdaily low max (Tie)13.0 C (55.4 F)tie12 years1 of 100 (Routine)
20 August 1915Winnemucca AP, USdaily high max (Tie)35.6 C (96.1 F)tie5 years1 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

1797 to 1915
Records on 08-20 in each year Records set or tied on this calendar date in each year from 1797 to 1915. 1915 had 14 records. 05001,0001,5002,0001797: 11807: 11809: 21816: 11830: 11832: 11838: 11840: 11842: 11846: 11849: 11850: 11852: 11858: 31863: 51867: 41870: 31871: 11873: 11875: 21877: 11883: 21884: 21885: 61886: 11888: 11889: 21890: 21891: 21892: 61893: 11894: 11895: 11896: 51897: 61898: 11899: 51900: 71901: 121902: 31903: 71904: 301905: 71906: 261907: 151908: 211909: 691910: 71911: 181912: 251913: 231914: 151915: 141916: 741917: 511918: 691919: 251920: 471921: 231922: 521923: 831924: 1321925: 1931926: 1871927: 3381928: 1011929: 2131930: 3181931: 2141932: 2991933: 3241934: 3761935: 3391936: 5431937: 5371938: 2501939: 4481940: 6951941: 2301942: 4291943: 4361944: 3551945: 3981946: 3491947: 9881948: 4031949: 4311950: 1,3411951: 8241952: 4251953: 4411954: 4761955: 8481956: 6781957: 3421958: 2811959: 7641960: 4651961: 5201962: 6841963: 5771964: 6291965: 4701966: 1,0941967: 6571968: 8621969: 6081970: 4141971: 5851972: 5221973: 4901974: 5651975: 4111976: 8941977: 8601978: 5631979: 1,0091980: 9911981: 8561982: 6201983: 1,4651984: 6961985: 6661986: 8191987: 5641988: 9911989: 6031990: 1,2621991: 8041992: 1,1681993: 7591994: 7191995: 1,1131996: 9001997: 1,2141998: 8021999: 8102000: 9892001: 9092002: 1,2082003: 1,0312004: 1,3332005: 1,1122006: 8512007: 1,9552008: 1,1702009: 1,4142010: 1,0282011: 9872012: 1,0862013: 5452014: 5822015: 1,0752016: 8722017: 3242018: 6572019: 6982020: 1,0512021: 1,0282022: 1,0382023: 1,4792024: 5892025: 1,1342026: 9851797187118971914193119481965198219992016
Records set or tied on this calendar date in each year from 1797 to 1915. 1915 had 14 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-20 in each year
YearRecords
17971
18071
18092
18161
18301
18321
18381
18401
18421
18461
18491
18501
18521
18583
18635
18674
18703
18711
18731
18752
18771
18832
18842
18856
18861
18881
18892
18902
18912
18926
18931
18941
18951
18965
18976
18981
18995
19007
190112
19023
19037
190430
19057
190626
190715
190821
190969
19107
191118
191225
191323
191415
191514
191674
191751
191869
191925
192047
192123
192252
192383
1924132
1925193
1926187
1927338
1928101
1929213
1930318
1931214
1932299
1933324
1934376
1935339
1936543
1937537
1938250
1939448
1940695
1941230
1942429
1943436
1944355
1945398
1946349
1947988
1948403
1949431
19501,341
1951824
1952425
1953441
1954476
1955848
1956678
1957342
1958281
1959764
1960465
1961520
1962684
1963577
1964629
1965470
19661,094
1967657
1968862
1969608
1970414
1971585
1972522
1973490
1974565
1975411
1976894
1977860
1978563
19791,009
1980991
1981856
1982620
19831,465
1984696
1985666
1986819
1987564
1988991
1989603
19901,262
1991804
19921,168
1993759
1994719
19951,113
1996900
19971,214
1998802
1999810
2000989
2001909
20021,208
20031,031
20041,333
20051,112
2006851
20071,955
20081,170
20091,414
20101,028
2011987
20121,086
2013545
2014582
20151,075
2016872
2017324
2018657
2019698
20201,051
20211,028
20221,038
20231,479
2024589
20251,134
2026985

Download the Data

  • Data for records on 1915-08-20: 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 . Last revised (2026-10-15).