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Built 2026-10-19 (19 October 2026)

Weather Records on 18 September 1915

41 weather records were set or tied worldwide on 18 September 1915. Highest significance: Bimbowrie, AU.

Key Facts for 18 September 1915

  • On 18 September 1915, 41 weather records were set or tied at long-record stations worldwide.
  • 10 were record highs and 11 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 40 daily.
  • Bimbowrie set a daily record precipitation of 27.4 mm (1.1 in) on 18 September 1915.
  • Across 163 earlier years (1803 to 2026) the same calendar date averaged 424 records.

Record Map

41 stations
Weather records on 18 September 1915 41 station records on 18 September 1915 are marked on the map, coloured by record type.
41 station records on 18 September 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 18 September 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
BimbowrieAustraliaRecord daily precipitation27.4 mm (1.1 in)43 of 100 (Notable)
PoolamaccaAustraliaRecord daily precipitation29.5 mm (1.2 in)40 of 100 (Notable)
Yanco Glen (Corona Homestead)AustraliaRecord daily precipitation33.5 mm (1.3 in)30 of 100 (Routine)
Dublin Phoenix ParkIrelandRecord high maximum temperature22.8 C (73.0 F)29 of 100 (Routine)
Anna CreekAustraliaRecord daily precipitation14.7 mm (0.6 in)20 of 100 (Routine)
Belton (Shadow Vale)AustraliaRecord daily precipitation21.1 mm (0.8 in)20 of 100 (Routine)
Salisbury DownsAustraliaRecord daily precipitation24.1 mm (0.9 in)20 of 100 (Routine)
Wentworth (Cuthero)AustraliaRecord daily precipitation15.2 mm (0.6 in)19 of 100 (Routine)
Alice Springs Post OfficeAustraliaRecord daily precipitation1.5 mm (0.06 in)17 of 100 (Routine)
ArumpoAustraliaRecord daily precipitation11.4 mm (0.4 in)17 of 100 (Routine)
Anticosti SW PointCanadaRecord low minimum temperature0.0 C (32.0 F)17 of 100 (Routine)
Baltimore Customs HouseUnited StatesRecord daily precipitation19.8 mm (0.8 in)16 of 100 (Routine)
Burra (Poonunda)AustraliaRecord daily precipitation27.4 mm (1.1 in)15 of 100 (Routine)
GalwayIrelandRecord high maximum temperature22.2 C (72.0 F)14 of 100 (Routine)
KarlsruheGermanyRecord high minimum temperature16.2 C (61.2 F)14 of 100 (Routine)
PanbanAustraliaRecord daily precipitation10.7 mm (0.4 in)13 of 100 (Routine)
St. PetersburgRussiaRecord daily precipitation11.9 mm (0.5 in)13 of 100 (Routine)
Munchen-NymphenburgGermanyRecord high minimum temperature13.2 C (55.8 F)12 of 100 (Routine)
Port Germein (Telowie)AustraliaRecord daily precipitation15.5 mm (0.6 in)11 of 100 (Routine)
WinbarAustraliaRecord daily precipitation9.1 mm (0.36 in)10 of 100 (Routine)
NovorossijskRussiaRecord daily precipitation10.3 mm (0.4 in)10 of 100 (Routine)
HarnosandSwedenRecord low maximum temperature7.5 C (45.5 F)10 of 100 (Routine)
Vasteras-HassloSwedenRecord low maximum temperature8.0 C (46.4 F)10 of 100 (Routine)
GavleSwedenRecord low maximum temperature7.0 C (44.6 F)10 of 100 (Routine)
BjurakerSwedenRecord low maximum temperature6.5 C (43.7 F)10 of 100 (Routine)
StockholmSwedenRecord low minimum temperature3.5 C (38.3 F)10 of 100 (Routine)
Port ArthurCanadaRecord daily precipitation12.7 mm (0.5 in)9 of 100 (Routine)
Berlin-DahlemGermanyRecord daily precipitation10.6 mm (0.4 in)9 of 100 (Routine)
UmeaSwedenRecord low maximum temperature6.0 C (42.8 F)9 of 100 (Routine)
GorlitzGermanyRecord daily precipitation7.9 mm (0.31 in)8 of 100 (Routine)
WellandCanadaRecord high minimum temperature18.3 C (64.9 F)7 of 100 (Routine)
OrebroSwedenRecord low maximum temperature9.0 C (48.2 F)7 of 100 (Routine)
Linkoeping-MalmslaettSwedenRecord low maximum temperature9.2 C (48.6 F)6 of 100 (Routine)
StockholmSwedenRecord low maximum temperature8.5 C (47.3 F)6 of 100 (Routine)
SvegSwedenRecord low maximum temperature6.1 C (43.0 F)5 of 100 (Routine)
Atlantic City MarinaUnited StatesRecord high minimum temperature20.6 C (69.1 F)4 of 100 (Routine)
Middletown 4 WUnited StatesRecord high maximum temperature30.0 C (86.0 F)2 of 100 (Routine)
Blue Hill CoopUnited StatesRecord high minimum temperature15.6 C (60.1 F)2 of 100 (Routine)
WashingtonUnited StatesRecord high minimum temperature21.1 C (70.0 F)2 of 100 (Routine)
Glenthompson (Brie Brie)AustraliaRecord daily precipitation17.0 mm (0.7 in)1 of 100 (Routine)
Baltimore Customs HouseUnited StatesRecord high minimum temperature21.1 C (70.0 F)1 of 100 (Routine)

Counts by Type and Timescale

41 records
Records on 18 September 1915 by type Records set or tied on 18 September 1915 by type: Highest daily maximum 3, Lowest daily maximum 9, Highest daily minimum 7, Lowest daily minimum 2, Heaviest daily rainfall 20. 05101520Highest daily maximum: 3Lowest daily maximum: 9Highest daily minimum: 7Lowest daily minimum: 2Heaviest daily rainfall: 20Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 18 September 1915 by type: Highest daily maximum 3, Lowest daily maximum 9, Highest daily minimum 7, Lowest daily minimum 2, Heaviest daily rainfall 20.
Records on 18 September 1915 by type
Record typeRecords
Highest daily maximum3
Lowest daily maximum9
Highest daily minimum7
Lowest daily minimum2
Heaviest daily rainfall20
Heaviest daily snowfall0
Deepest snow cover0
Records on 18 September 1915 by timescale Records on 18 September 1915 by timescale: all-time 0, monthly 1, daily 40. 010203040all-time: 0monthly: 1daily: 40all-timemonthlydaily
Records on 18 September 1915 by timescale: all-time 0, monthly 1, daily 40.
Records on 18 September 1915 by timescale
TimescaleRecords
all-time0
monthly1
daily40

How Much Records Were Beaten By

35 broken records
Histogram of margins by which records were beaten on 18 September 1915 Margins by which the 35 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.3. Ties are not counted. 01020300 to 5: 245 to 10: 610 to 15: 215 to 20: 020 to 25: 30 to 55 to 1010 to 1515 to 2020 to 25
Margins by which the 35 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.3. Ties are not counted.
Histogram of margins by which records were beaten on 18 September 1915
MarginRecords
0 to 524
5 to 106
10 to 152
15 to 200
20 to 253

Top 20 by Significance

18 September 1915
Top 20 records on 18 September 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
18 September 1915Bimbowrie, AUdaily rain27.4 mm (1.1 in)23.3 mm (0.9 in)1 year43 of 100 (Notable)
18 September 1915Poolamacca, AUdaily rain29.5 mm (1.2 in)21.6 mm (0.9 in)25 years40 of 100 (Notable)
18 September 1915Yanco Glen (Corona Homestead), AUdaily rain33.5 mm (1.3 in)21.3 mm (0.8 in)12 years30 of 100 (Routine)
18 September 1915Dublin Phoenix Park, IEdaily high max22.8 C (73.0 F)3.4 C (6.1 F)44 years29 of 100 (Routine)
18 September 1915Anna Creek, AUdaily rain14.7 mm (0.6 in)13.4 mm (0.5 in)19 years20 of 100 (Routine)
18 September 1915Belton (Shadow Vale), AUdaily rain21.1 mm (0.8 in)12.7 mm (0.5 in)29 years20 of 100 (Routine)
18 September 1915Salisbury Downs, AUmonthly rain24.1 mm (0.9 in)0.7 mm (0.03 in)24 years20 of 100 (Routine)
18 September 1915Wentworth (Cuthero), AUdaily rain15.2 mm (0.6 in)6.1 mm (0.24 in)29 years19 of 100 (Routine)
18 September 1915Alice Springs Post Office, AUdaily rain1.5 mm (0.06 in)1.5 mm (0.06 in)41 years17 of 100 (Routine)
18 September 1915Arumpo, AUdaily rain11.4 mm (0.4 in)7.3 mm (0.29 in)18 years17 of 100 (Routine)
18 September 1915Anticosti SW Point, CAdaily low min0.0 C (32.0 F)1.7 C (3.1 F)30 years17 of 100 (Routine)
18 September 1915Baltimore Customs House, USdaily rain19.8 mm (0.8 in)9.6 mm (0.38 in)25 years16 of 100 (Routine)
18 September 1915Burra (Poonunda), AUdaily rain27.4 mm (1.1 in)8.1 mm (0.32 in)1 year15 of 100 (Routine)
18 September 1915Galway, IEdaily high max22.2 C (72.0 F)1.1 C (2.0 F)16 years14 of 100 (Routine)
18 September 1915Karlsruhe, DEdaily high min16.2 C (61.2 F)0.2 C (0.4 F)35 years14 of 100 (Routine)
18 September 1915Panban, AUdaily rain10.7 mm (0.4 in)5.9 mm (0.23 in)1 year13 of 100 (Routine)
18 September 1915St. Petersburg, RUdaily rain11.9 mm (0.5 in)1.4 mm (0.06 in)29 years13 of 100 (Routine)
18 September 1915Munchen-Nymphenburg, DEdaily high min13.2 C (55.8 F)0.2 C (0.4 F)31 years12 of 100 (Routine)
18 September 1915Port Germein (Telowie), AUdaily rain15.5 mm (0.6 in)7.1 mm (0.28 in)1 year11 of 100 (Routine)
18 September 1915Winbar, AUdaily rain9.1 mm (0.36 in)3.0 mm (0.12 in)12 years10 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

1803 to 1915
Records on 09-18 in each year Records set or tied on this calendar date in each year from 1803 to 1915. 1915 had 41 records. 05001,0001,5002,0001803: 11811: 11814: 11819: 11829: 11832: 11834: 11835: 11837: 21847: 21848: 11849: 11851: 41859: 11861: 11865: 11869: 11871: 11875: 11876: 21877: 11879: 11880: 11881: 11882: 11885: 11886: 41889: 61890: 11891: 11893: 41894: 21895: 21896: 41897: 31898: 51899: 31900: 21901: 101902: 81903: 581904: 61905: 221906: 161907: 41908: 111909: 171910: 51911: 81912: 431913: 441914: 561915: 411916: 581917: 991918: 571919: 481920: 561921: 2131922: 451923: 1141924: 621925: 2691926: 2051927: 1891928: 1141929: 3091930: 1241931: 4291932: 2261933: 3701934: 1881935: 2811936: 1551937: 4221938: 3731939: 1901940: 4021941: 3181942: 1,0011943: 6241944: 5031945: 7321946: 5761947: 9271948: 4271949: 3561950: 3701951: 3201952: 3401953: 2451954: 4461955: 6721956: 5871957: 4291958: 4911959: 8291960: 3511961: 4781962: 3601963: 4531964: 2821965: 1,1721966: 4981967: 3571968: 7631969: 4241970: 3771971: 1,2451972: 6911973: 5931974: 5591975: 9761976: 6151977: 6191978: 1,1621979: 7091980: 6521981: 1,6711982: 6031983: 9361984: 9511985: 6361986: 7301987: 1,2441988: 9971989: 7781990: 9041991: 1,3771992: 8211993: 7471994: 8521995: 9351996: 1,2371997: 9351998: 1,0381999: 5832000: 1,1462001: 9932002: 8282003: 8152004: 1,0272005: 7812006: 1,3092007: 6702008: 6972009: 6922010: 1,0402011: 1,0502012: 9222013: 6662014: 6822015: 9342016: 8932017: 5182018: 1,2002019: 7682020: 6822021: 5822022: 6132023: 6392024: 6872025: 4712026: 8641803187118971914193119481965198219992016
Records set or tied on this calendar date in each year from 1803 to 1915. 1915 had 41 records.
Counts for years before the ledger starts come from the same station rules.
Records on 09-18 in each year
YearRecords
18031
18111
18141
18191
18291
18321
18341
18351
18372
18472
18481
18491
18514
18591
18611
18651
18691
18711
18751
18762
18771
18791
18801
18811
18821
18851
18864
18896
18901
18911
18934
18942
18952
18964
18973
18985
18993
19002
190110
19028
190358
19046
190522
190616
19074
190811
190917
19105
19118
191243
191344
191456
191541
191658
191799
191857
191948
192056
1921213
192245
1923114
192462
1925269
1926205
1927189
1928114
1929309
1930124
1931429
1932226
1933370
1934188
1935281
1936155
1937422
1938373
1939190
1940402
1941318
19421,001
1943624
1944503
1945732
1946576
1947927
1948427
1949356
1950370
1951320
1952340
1953245
1954446
1955672
1956587
1957429
1958491
1959829
1960351
1961478
1962360
1963453
1964282
19651,172
1966498
1967357
1968763
1969424
1970377
19711,245
1972691
1973593
1974559
1975976
1976615
1977619
19781,162
1979709
1980652
19811,671
1982603
1983936
1984951
1985636
1986730
19871,244
1988997
1989778
1990904
19911,377
1992821
1993747
1994852
1995935
19961,237
1997935
19981,038
1999583
20001,146
2001993
2002828
2003815
20041,027
2005781
20061,309
2007670
2008697
2009692
20101,040
20111,050
2012922
2013666
2014682
2015934
2016893
2017518
20181,200
2019768
2020682
2021582
2022613
2023639
2024687
2025471
2026864

Download the Data

  • Data for records on 1915-09-18: 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).