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Built 2026-10-19 (19 October 2026)

Weather Records on 20 September 1911

21 weather records were set or tied worldwide on 20 September 1911. Highest significance: Oran-Hopital Militaire, DZ.

Key Facts for 20 September 1911

  • On 20 September 1911, 21 weather records were set or tied at long-record stations worldwide.
  • 15 were record highs and 1 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 21 daily.
  • Oran-Hopital Militaire set a daily record high maximum temperature of 30.0 C (86.0 F) on 20 September 1911.
  • Across 156 earlier years (1812 to 2026) the same calendar date averaged 445 records.

Record Map

21 stations
Weather records on 20 September 1911 21 station records on 20 September 1911 are marked on the map, coloured by record type.
21 station records on 20 September 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 20 September 1911: highest significance records shown on the map
StationCountryTypeValueSignificance
Oran-Hopital MilitaireAlgeriaRecord high maximum temperature30.0 C (86.0 F)21 of 100 (Routine)
West TerschellingNetherlandsRecord daily precipitation19.8 mm (0.8 in)20 of 100 (Routine)
Barraba Post OfficeAustraliaRecord daily precipitation26.7 mm (1.1 in)19 of 100 (Routine)
Rokewood (the Meadows)AustraliaRecord daily precipitation14.0 mm (0.6 in)19 of 100 (Routine)
UccleBelgiumRecord daily precipitation14.9 mm (0.6 in)19 of 100 (Routine)
SydneyCanadaRecord high minimum temperature14.4 C (57.9 F)18 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high minimum temperature23.0 C (73.4 F)17 of 100 (Routine)
Fredericton UnbCanadaRecord high minimum temperature15.0 C (59.0 F)17 of 100 (Routine)
Saint JohnCanadaRecord high minimum temperature15.6 C (60.1 F)12 of 100 (Routine)
Berlin-DahlemGermanyRecord high maximum temperature23.4 C (74.1 F)12 of 100 (Routine)
ArnsbergGermanyRecord high maximum temperature25.0 C (77.0 F)12 of 100 (Routine)
SydneyCanadaRecord high maximum temperature23.3 C (73.9 F)11 of 100 (Routine)
MagdeburgGermanyRecord high maximum temperature24.9 C (76.8 F)8 of 100 (Routine)
FreiburgGermanyRecord high maximum temperature25.8 C (78.4 F)8 of 100 (Routine)
Winnemucca APUnited StatesRecord low minimum temperature-1.1 C (30.0 F)8 of 100 (Routine)
HalifaxCanadaRecord high minimum temperature16.1 C (61.0 F)7 of 100 (Routine)
PortlandAustraliaRecord daily precipitation26.2 mm (1.0 in)5 of 100 (Routine)
CharlottetownCanadaRecord high minimum temperature15.0 C (59.0 F)3 of 100 (Routine)
St John'sCanadaRecord high maximum temperature23.3 C (73.9 F)2 of 100 (Routine)
BambergGermanyRecord high maximum temperature23.8 C (74.8 F)1 of 100 (Routine)
Chattanooga Wb CityUnited StatesRecord high minimum temperature20.0 C (68.0 F)1 of 100 (Routine)

Counts by Type and Timescale

21 records
Records on 20 September 1911 by type Records set or tied on 20 September 1911 by type: Highest daily maximum 8, Highest daily minimum 7, Lowest daily minimum 1, Heaviest daily rainfall 5. 02468Highest daily maximum: 8Lowest daily maximum: 0Highest daily minimum: 7Lowest daily minimum: 1Heaviest daily rainfall: 5Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 20 September 1911 by type: Highest daily maximum 8, Highest daily minimum 7, Lowest daily minimum 1, Heaviest daily rainfall 5.
Records on 20 September 1911 by type
Record typeRecords
Highest daily maximum8
Lowest daily maximum0
Highest daily minimum7
Lowest daily minimum1
Heaviest daily rainfall5
Heaviest daily snowfall0
Deepest snow cover0
Records on 20 September 1911 by timescale Records on 20 September 1911 by timescale: all-time 0, monthly 0, daily 21. 0102030all-time: 0monthly: 0daily: 21all-timemonthlydaily
Records on 20 September 1911 by timescale: all-time 0, monthly 0, daily 21.
Records on 20 September 1911 by timescale
TimescaleRecords
all-time0
monthly0
daily21

How Much Records Were Beaten By

17 broken records
Histogram of margins by which records were beaten on 20 September 1911 Margins by which the 17 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 8.9. Ties are not counted. 0510150 to 2: 122 to 4: 24 to 6: 06 to 8: 18 to 10: 20 to 22 to 44 to 66 to 88 to 10
Margins by which the 17 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 8.9. Ties are not counted.
Histogram of margins by which records were beaten on 20 September 1911
MarginRecords
0 to 212
2 to 42
4 to 60
6 to 81
8 to 102

Top 20 by Significance

20 September 1911
Top 20 records on 20 September 1911 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
20 September 1911Oran-Hopital Militaire, DZdaily high max30.0 C (86.0 F)2.0 C (3.6 F)23 years21 of 100 (Routine)
20 September 1911West Terschelling, NLdaily rain19.8 mm (0.8 in)8.2 mm (0.32 in)30 years20 of 100 (Routine)
20 September 1911Barraba Post Office, AUdaily rain26.7 mm (1.1 in)8.9 mm (0.35 in)27 years19 of 100 (Routine)
20 September 1911Rokewood (the Meadows), AUdaily rain14.0 mm (0.6 in)3.6 mm (0.14 in)26 years19 of 100 (Routine)
20 September 1911Uccle, BEdaily rain14.9 mm (0.6 in)7.3 mm (0.29 in)18 years19 of 100 (Routine)
20 September 1911Sydney, CAdaily high min14.4 C (57.9 F)1.6 C (2.9 F)37 years18 of 100 (Routine)
20 September 1911Oran-Hopital Militaire, DZdaily high min23.0 C (73.4 F)1.0 C (1.8 F)23 years17 of 100 (Routine)
20 September 1911Fredericton Unb, CAdaily high min15.0 C (59.0 F)1.1 C (2.0 F)36 years17 of 100 (Routine)
20 September 1911Saint John, CAdaily high min15.6 C (60.1 F)1.2 C (2.2 F)16 years12 of 100 (Routine)
20 September 1911Berlin-Dahlem, DEdaily high max23.4 C (74.1 F)0.4 C (0.7 F)28 years12 of 100 (Routine)
20 September 1911Arnsberg, DEdaily high max25.0 C (77.0 F)1.6 C (2.9 F)18 years12 of 100 (Routine)
20 September 1911Sydney, CAdaily high max23.3 C (73.9 F)0.5 C (0.9 F)20 years11 of 100 (Routine)
20 September 1911Magdeburg, DEdaily high max24.9 C (76.8 F)0.4 C (0.7 F)18 years8 of 100 (Routine)
20 September 1911Freiburg, DEdaily high max25.8 C (78.4 F)0.3 C (0.5 F)19 years8 of 100 (Routine)
20 September 1911Winnemucca AP, USdaily low min-1.1 C (30.0 F)0.5 C (0.9 F)14 years8 of 100 (Routine)
20 September 1911Halifax, CAdaily high min16.1 C (61.0 F)1.1 C (2.0 F)5 years7 of 100 (Routine)
20 September 1911Portland, AUdaily rain26.2 mm (1.0 in)1.1 mm (0.04 in)1 year5 of 100 (Routine)
20 September 1911Charlottetown, CAdaily high min (Tie)15.0 C (59.0 F)tie36 years3 of 100 (Routine)
20 September 1911St John's, CAdaily high max (Tie)23.3 C (73.9 F)tie21 years2 of 100 (Routine)
20 September 1911Bamberg, DEdaily high max (Tie)23.8 C (74.8 F)tie9 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

1812 to 1911
Records on 09-20 in each year Records set or tied on this calendar date in each year from 1812 to 1911. 1911 had 21 records. 05001,0001,5002,0001812: 11837: 11840: 11844: 11848: 21851: 11852: 11854: 21855: 11856: 21859: 21860: 11862: 11870: 11871: 21882: 21883: 11884: 11886: 21887: 11888: 21889: 81891: 41893: 51894: 11895: 21896: 11897: 161898: 41899: 11900: 21901: 31902: 31903: 31904: 121905: 81906: 221907: 111908: 241909: 101910: 81911: 211912: 341913: 481914: 281915: 2391916: 281917: 1001918: 591919: 551920: 641921: 401922: 521923: 2491924: 3291925: 3301926: 1291927: 1691928: 1441929: 3731930: 1021931: 5641932: 2701933: 2231934: 3491935: 2011936: 1331937: 3851938: 5061939: 3121940: 5911941: 5821942: 4361943: 4191944: 4661945: 4061946: 7661947: 4601948: 4541949: 2681950: 4351951: 2671952: 4341953: 4791954: 6281955: 6251956: 9851957: 5141958: 4101959: 4891960: 3521961: 3841962: 7071963: 2901964: 4821965: 1,1801966: 4141967: 4491968: 6171969: 6041970: 5911971: 8841972: 5821973: 5691974: 7711975: 5271976: 3751977: 7761978: 1,2161979: 7671980: 5671981: 9791982: 9111983: 1,9581984: 8951985: 7301986: 7431987: 8561988: 6981989: 9681990: 7431991: 1,8351992: 7181993: 1,0311994: 7881995: 1,3741996: 1,0771997: 1,2821998: 1,1571999: 9232000: 9082001: 8212002: 8452003: 9102004: 1,1562005: 9602006: 7322007: 6452008: 6482009: 7152010: 1,4972011: 6502012: 5492013: 5952014: 5772015: 4392016: 7782017: 9202018: 1,0202019: 8352020: 6302021: 5652022: 7862023: 4822024: 5962025: 8772026: 6821812188319021918193419501966198219982014
Records set or tied on this calendar date in each year from 1812 to 1911. 1911 had 21 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-20 in each year
YearRecords
18121
18371
18401
18441
18482
18511
18521
18542
18551
18562
18592
18601
18621
18701
18712
18822
18831
18841
18862
18871
18882
18898
18914
18935
18941
18952
18961
189716
18984
18991
19002
19013
19023
19033
190412
19058
190622
190711
190824
190910
19108
191121
191234
191348
191428
1915239
191628
1917100
191859
191955
192064
192140
192252
1923249
1924329
1925330
1926129
1927169
1928144
1929373
1930102
1931564
1932270
1933223
1934349
1935201
1936133
1937385
1938506
1939312
1940591
1941582
1942436
1943419
1944466
1945406
1946766
1947460
1948454
1949268
1950435
1951267
1952434
1953479
1954628
1955625
1956985
1957514
1958410
1959489
1960352
1961384
1962707
1963290
1964482
19651,180
1966414
1967449
1968617
1969604
1970591
1971884
1972582
1973569
1974771
1975527
1976375
1977776
19781,216
1979767
1980567
1981979
1982911
19831,958
1984895
1985730
1986743
1987856
1988698
1989968
1990743
19911,835
1992718
19931,031
1994788
19951,374
19961,077
19971,282
19981,157
1999923
2000908
2001821
2002845
2003910
20041,156
2005960
2006732
2007645
2008648
2009715
20101,497
2011650
2012549
2013595
2014577
2015439
2016778
2017920
20181,020
2019835
2020630
2021565
2022786
2023482
2024596
2025877
2026682

Download the Data

  • Data for records on 1911-09-20: 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).