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Built 2026-10-19 (19 October 2026)

Weather Records on 17 August 1920

110 weather records were set or tied worldwide on 17 August 1920. Highest significance: Penshurst (Post Office), AU.

Key Facts for 17 August 1920

  • On 17 August 1920, 110 weather records were set or tied at long-record stations worldwide.
  • 16 were record highs and 8 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 109 daily.
  • Penshurst (Post Office) set a daily record precipitation of 26.2 mm (1.0 in) on 17 August 1920.
  • Across 162 earlier years (1797 to 2026) the same calendar date averaged 476 records.

Record Map

110 stations
Weather records on 17 August 1920 110 station records on 17 August 1920 are marked on the map, coloured by record type.
110 station records on 17 August 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 August 1920: highest significance records shown on the map
StationCountryTypeValueSignificance
Penshurst (Post Office)AustraliaRecord daily precipitation26.2 mm (1.0 in)38 of 100 (Notable)
OxfordUnited KingdomRecord low maximum temperature15.9 C (60.6 F)36 of 100 (Notable)
Malin HeadIrelandRecord daily precipitation45.9 mm (1.8 in)30 of 100 (Routine)
Bourke Post OfficeAustraliaRecord low maximum temperature15.6 C (60.1 F)21 of 100 (Routine)
Saint JohnCanadaRecord high maximum temperature25.6 C (78.1 F)21 of 100 (Routine)
TrawallaAustraliaRecord daily precipitation16.5 mm (0.6 in)20 of 100 (Routine)
DunkeldAustraliaRecord daily precipitation19.6 mm (0.8 in)20 of 100 (Routine)
MortlakeAustraliaRecord daily precipitation18.8 mm (0.7 in)20 of 100 (Routine)
Macarthur (Glenhuntly)AustraliaRecord daily precipitation20.6 mm (0.8 in)20 of 100 (Routine)
Buangor 1AustraliaRecord daily precipitation20.6 mm (0.8 in)20 of 100 (Routine)
WoolsthorpeAustraliaRecord daily precipitation19.1 mm (0.8 in)20 of 100 (Routine)
BarnawarthaAustraliaRecord daily precipitation10.9 mm (0.4 in)20 of 100 (Routine)
Murrumbeena Leeds GroveAustraliaRecord daily precipitation13.2 mm (0.5 in)20 of 100 (Routine)
Newlyn ReservoirAustraliaRecord daily precipitation12.4 mm (0.5 in)20 of 100 (Routine)
Tarcutta Post OfficeAustraliaRecord daily precipitation16.3 mm (0.6 in)20 of 100 (Routine)
ConcordUnited StatesRecord high minimum temperature21.1 C (70.0 F)20 of 100 (Routine)
DaylesfordAustraliaRecord daily precipitation23.1 mm (0.9 in)19 of 100 (Routine)
Colac Botanical GardensAustraliaRecord daily precipitation14.2 mm (0.6 in)19 of 100 (Routine)
Warroo (Geeron)AustraliaRecord daily precipitation5.1 mm (0.20 in)18 of 100 (Routine)
Adelong Post OfficeAustraliaRecord daily precipitation16.5 mm (0.6 in)18 of 100 (Routine)
KewAustraliaRecord daily precipitation9.7 mm (0.38 in)18 of 100 (Routine)
TurkestanKazakhstanRecord daily precipitation4.0 mm (0.16 in)18 of 100 (Routine)
AlburyAustraliaRecord daily precipitation15.2 mm (0.6 in)17 of 100 (Routine)
Tumut (Wattle Cres)AustraliaRecord daily precipitation15.5 mm (0.6 in)17 of 100 (Routine)
TarcuttaAustraliaRecord daily precipitation14.0 mm (0.6 in)17 of 100 (Routine)
Urana (Cocketgedong)AustraliaRecord daily precipitation8.6 mm (0.34 in)17 of 100 (Routine)
Jerilderie (Yanko Station)AustraliaRecord daily precipitation8.4 mm (0.33 in)17 of 100 (Routine)
Springfield 3AustraliaRecord daily precipitation10.7 mm (0.4 in)17 of 100 (Routine)
YeaAustraliaRecord daily precipitation14.2 mm (0.6 in)17 of 100 (Routine)
Glenthompson (Brie Brie)AustraliaRecord daily precipitation19.8 mm (0.8 in)17 of 100 (Routine)
Batlow Post OfficeAustraliaRecord daily precipitation22.4 mm (0.9 in)16 of 100 (Routine)
Jindera (Wadilock)AustraliaRecord daily precipitation11.9 mm (0.5 in)16 of 100 (Routine)
YarmouthCanadaRecord high minimum temperature15.0 C (59.0 F)16 of 100 (Routine)
Gunnedah PoolAustraliaRecord low maximum temperature12.8 C (55.0 F)15 of 100 (Routine)
Arthurville (Cramond)AustraliaRecord daily precipitation3.6 mm (0.14 in)15 of 100 (Routine)
WhrooAustraliaRecord daily precipitation9.7 mm (0.38 in)15 of 100 (Routine)
Gravesend Post OfficeAustraliaRecord daily precipitation7.1 mm (0.28 in)14 of 100 (Routine)
YellowinAustraliaRecord daily precipitation18.3 mm (0.7 in)14 of 100 (Routine)
Grenfell (Quondong Rd)AustraliaRecord daily precipitation6.4 mm (0.25 in)14 of 100 (Routine)
Grong Grong (Berembed)AustraliaRecord daily precipitation7.4 mm (0.29 in)14 of 100 (Routine)
BulgandraAustraliaRecord daily precipitation10.7 mm (0.4 in)14 of 100 (Routine)
Tatura Post OfficeAustraliaRecord daily precipitation7.6 mm (0.30 in)14 of 100 (Routine)
Coleraine (Tulse Hill)AustraliaRecord daily precipitation10.9 mm (0.4 in)14 of 100 (Routine)
Swift CurrentCanadaRecord high maximum temperature36.7 C (98.1 F)14 of 100 (Routine)
PlymouthUnited StatesRecord high minimum temperature18.3 C (64.9 F)14 of 100 (Routine)
Brungle (Rosemount)AustraliaRecord daily precipitation15.2 mm (0.6 in)13 of 100 (Routine)
The Rock (Bullenbong)AustraliaRecord daily precipitation7.9 mm (0.31 in)13 of 100 (Routine)
Kergunyah SouthAustraliaRecord daily precipitation18.5 mm (0.7 in)13 of 100 (Routine)
Cowra Post OfficeAustraliaRecord daily precipitation7.6 mm (0.30 in)12 of 100 (Routine)
WantabadgeryAustraliaRecord daily precipitation11.2 mm (0.4 in)12 of 100 (Routine)
TungamahAustraliaRecord daily precipitation11.7 mm (0.5 in)12 of 100 (Routine)
Caulfield (Racecourse)AustraliaRecord daily precipitation13.5 mm (0.5 in)12 of 100 (Routine)
Brighton MiddleAustraliaRecord daily precipitation11.4 mm (0.4 in)12 of 100 (Routine)
LancefieldAustraliaRecord daily precipitation6.6 mm (0.26 in)12 of 100 (Routine)
Marrar (Centenary Drive)AustraliaRecord daily precipitation7.1 mm (0.28 in)11 of 100 (Routine)
WarwillahAustraliaRecord daily precipitation4.1 mm (0.16 in)11 of 100 (Routine)
Rutherglen Netherby WineAustraliaRecord daily precipitation10.4 mm (0.4 in)11 of 100 (Routine)
LilydaleAustraliaRecord daily precipitation10.4 mm (0.4 in)11 of 100 (Routine)
Miles Post OfficeAustraliaRecord daily precipitation1.3 mm (0.05 in)10 of 100 (Routine)
Lithgow (Birdwood St)AustraliaRecord daily precipitation4.1 mm (0.16 in)10 of 100 (Routine)

Counts by Type and Timescale

110 records
Records on 17 August 1920 by type Records set or tied on 17 August 1920 by type: Highest daily maximum 7, Lowest daily maximum 5, Highest daily minimum 9, Lowest daily minimum 3, Heaviest daily rainfall 86. 0255075100Highest daily maximum: 7Lowest daily maximum: 5Highest daily minimum: 9Lowest daily minimum: 3Heaviest daily rainfall: 86Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 August 1920 by type: Highest daily maximum 7, Lowest daily maximum 5, Highest daily minimum 9, Lowest daily minimum 3, Heaviest daily rainfall 86.
Records on 17 August 1920 by type
Record typeRecords
Highest daily maximum7
Lowest daily maximum5
Highest daily minimum9
Lowest daily minimum3
Heaviest daily rainfall86
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 August 1920 by timescale Records on 17 August 1920 by timescale: all-time 0, monthly 1, daily 109. 050100150all-time: 0monthly: 1daily: 109all-timemonthlydaily
Records on 17 August 1920 by timescale: all-time 0, monthly 1, daily 109.
Records on 17 August 1920 by timescale
TimescaleRecords
all-time0
monthly1
daily109

How Much Records Were Beaten By

90 broken records
Histogram of margins by which records were beaten on 17 August 1920 Margins by which the 90 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 12.7. Ties are not counted. 02040600 to 2: 472 to 4: 184 to 6: 116 to 8: 78 to 10: 310 to 12: 312 to 14: 10 to 22 to 44 to 66 to 88 to 1010 to 1212 to 14
Margins by which the 90 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 12.7. Ties are not counted.
Histogram of margins by which records were beaten on 17 August 1920
MarginRecords
0 to 247
2 to 418
4 to 611
6 to 87
8 to 103
10 to 123
12 to 141

Top 20 by Significance

17 August 1920
Top 20 records on 17 August 1920 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 August 1920Penshurst (Post Office), AUdaily rain26.2 mm (1.0 in)12.7 mm (0.5 in)31 years38 of 100 (Notable)
17 August 1920Oxford, GBdaily low max15.9 C (60.6 F)0.2 C (0.4 F)89 years36 of 100 (Notable)
17 August 1920Malin Head, IEmonthly rain45.9 mm (1.8 in)7.3 mm (0.29 in)11 years30 of 100 (Routine)
17 August 1920Bourke Post Office, AUdaily low max15.6 C (60.1 F)1.1 C (2.0 F)47 years21 of 100 (Routine)
17 August 1920Saint John, CAdaily high max25.6 C (78.1 F)0.6 C (1.1 F)46 years21 of 100 (Routine)
17 August 1920Trawalla, AUdaily rain16.5 mm (0.6 in)10.1 mm (0.4 in)29 years20 of 100 (Routine)
17 August 1920Dunkeld, AUdaily rain19.6 mm (0.8 in)9.9 mm (0.39 in)22 years20 of 100 (Routine)
17 August 1920Mortlake, AUdaily rain18.8 mm (0.7 in)8.4 mm (0.33 in)33 years20 of 100 (Routine)
17 August 1920Macarthur (Glenhuntly), AUdaily rain20.6 mm (0.8 in)10.4 mm (0.4 in)20 years20 of 100 (Routine)
17 August 1920Buangor 1, AUdaily rain20.6 mm (0.8 in)11.2 mm (0.4 in)19 years20 of 100 (Routine)
17 August 1920Woolsthorpe, AUdaily rain19.1 mm (0.8 in)8.4 mm (0.33 in)22 years20 of 100 (Routine)
17 August 1920Barnawartha, AUdaily rain10.9 mm (0.4 in)6.8 mm (0.27 in)31 years20 of 100 (Routine)
17 August 1920Murrumbeena Leeds Grove, AUdaily rain13.2 mm (0.5 in)7.9 mm (0.31 in)15 years20 of 100 (Routine)
17 August 1920Newlyn Reservoir, AUdaily rain12.4 mm (0.5 in)6.3 mm (0.25 in)37 years20 of 100 (Routine)
17 August 1920Tarcutta Post Office, AUdaily rain16.3 mm (0.6 in)3.1 mm (0.12 in)41 years20 of 100 (Routine)
17 August 1920Concord, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)47 years20 of 100 (Routine)
17 August 1920Daylesford, AUdaily rain23.1 mm (0.9 in)0.2 mm (0.01 in)46 years19 of 100 (Routine)
17 August 1920Colac Botanical Gardens, AUdaily rain14.2 mm (0.6 in)6.1 mm (0.24 in)12 years19 of 100 (Routine)
17 August 1920Warroo (Geeron), AUdaily rain5.1 mm (0.20 in)5.1 mm (0.20 in)30 years18 of 100 (Routine)
17 August 1920Adelong Post Office, AUdaily rain16.5 mm (0.6 in)6.8 mm (0.27 in)20 years18 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 1920
Records on 08-17 in each year Records set or tied on this calendar date in each year from 1797 to 1920. 1920 had 110 records. 05001,0001,5002,0001797: 21802: 21820: 21837: 11838: 21841: 21842: 11845: 21853: 11854: 11856: 11857: 11861: 31862: 11867: 11868: 31869: 11872: 11875: 21876: 51879: 11881: 11882: 11883: 21885: 31886: 11888: 51891: 11892: 31893: 21894: 31895: 21896: 31897: 11898: 51899: 81900: 31901: 141902: 71903: 61904: 21905: 111906: 281907: 91908: 261909: 241910: 171911: 181912: 311913: 791914: 411915: 281916: 331917: 351918: 1121919: 371920: 1101921: 371922: 1691923: 1611924: 1711925: 1301926: 1821927: 2281928: 1311929: 2431930: 1381931: 3021932: 3601933: 2601934: 3771935: 4371936: 6701937: 7261938: 4661939: 3641940: 3411941: 3781942: 4611943: 7431944: 5311945: 3871946: 4331947: 6821948: 4751949: 3711950: 5221951: 4131952: 4701953: 3451954: 6851955: 4651956: 4071957: 5041958: 5191959: 5431960: 5331961: 9981962: 4451963: 6501964: 4101965: 6411966: 4961967: 6791968: 9531969: 5931970: 4671971: 4471972: 1,0441973: 7501974: 5821975: 6121976: 7971977: 1,2161978: 8141979: 1,4641980: 8951981: 1,1121982: 5541983: 1,5741984: 7261985: 9481986: 9161987: 1,1501988: 1,6081989: 6871990: 9491991: 5601992: 1,8131993: 8031994: 1,0381995: 1,7241996: 7521997: 1,5441998: 1,0031999: 6972000: 9942001: 1,1012002: 1,2662003: 9482004: 1,0462005: 7222006: 8142007: 1,6462008: 1,3012009: 9222010: 1,1052011: 9562012: 1,2152013: 8022014: 9972015: 8902016: 7482017: 5442018: 5182019: 4672020: 1,5292021: 8002022: 1,4282023: 1,0322024: 7402025: 5382026: 5351797187218981915193219491966198320002017
Records set or tied on this calendar date in each year from 1797 to 1920. 1920 had 110 records.
Counts for years before the ledger starts come from the same station rules.
Records on 08-17 in each year
YearRecords
17972
18022
18202
18371
18382
18412
18421
18452
18531
18541
18561
18571
18613
18621
18671
18683
18691
18721
18752
18765
18791
18811
18821
18832
18853
18861
18885
18911
18923
18932
18943
18952
18963
18971
18985
18998
19003
190114
19027
19036
19042
190511
190628
19079
190826
190924
191017
191118
191231
191379
191441
191528
191633
191735
1918112
191937
1920110
192137
1922169
1923161
1924171
1925130
1926182
1927228
1928131
1929243
1930138
1931302
1932360
1933260
1934377
1935437
1936670
1937726
1938466
1939364
1940341
1941378
1942461
1943743
1944531
1945387
1946433
1947682
1948475
1949371
1950522
1951413
1952470
1953345
1954685
1955465
1956407
1957504
1958519
1959543
1960533
1961998
1962445
1963650
1964410
1965641
1966496
1967679
1968953
1969593
1970467
1971447
19721,044
1973750
1974582
1975612
1976797
19771,216
1978814
19791,464
1980895
19811,112
1982554
19831,574
1984726
1985948
1986916
19871,150
19881,608
1989687
1990949
1991560
19921,813
1993803
19941,038
19951,724
1996752
19971,544
19981,003
1999697
2000994
20011,101
20021,266
2003948
20041,046
2005722
2006814
20071,646
20081,301
2009922
20101,105
2011956
20121,215
2013802
2014997
2015890
2016748
2017544
2018518
2019467
20201,529
2021800
20221,428
20231,032
2024740
2025538
2026535

Download the Data

  • Data for records on 1920-08-17: 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).