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Weather Records on 18 September 1889

6 weather records were set or tied worldwide on 18 September 1889. Highest significance: Bologna, IT.

Key Facts for 18 September 1889

  • On 18 September 1889, 6 weather records were set or tied at long-record stations worldwide.
  • 0 were record highs and 6 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 1 monthly and 5 daily.
  • Bologna set a daily record low minimum temperature of 9.3 C (48.7 F) on 18 September 1889.
  • Across 162 earlier years (1803 to 2025) the same calendar date averaged 421 records.

Record Map

6 stations
Weather records on 18 September 1889 6 station records on 18 September 1889 are marked on the map, coloured by record type.
6 station records on 18 September 1889 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 18 September 1889: highest significance records shown on the map
StationCountryTypeValueSignificance
BolognaItalyRecord low minimum temperature9.3 C (48.7 F)28 of 100 (Routine)
Praha-KlementinumCzech RepublicRecord low maximum temperature9.2 C (48.6 F)24 of 100 (Routine)
WienAustriaRecord low maximum temperature7.2 C (45.0 F)20 of 100 (Routine)
OxfordUnited KingdomRecord low minimum temperature1.6 C (34.9 F)19 of 100 (Routine)
Praha-KlementinumCzech RepublicRecord low minimum temperature4.4 C (39.9 F)13 of 100 (Routine)
Sydney (Observatory Hill)AustraliaRecord low maximum temperature13.2 C (55.8 F)11 of 100 (Routine)

Counts by Type and Timescale

6 records
Records on 18 September 1889 by type Records set or tied on 18 September 1889 by type: Lowest daily maximum 3, Lowest daily minimum 3. 0123Highest daily maximum: 0Lowest daily maximum: 3Highest daily minimum: 0Lowest daily minimum: 3Heaviest daily rainfall: 0Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 18 September 1889 by type: Lowest daily maximum 3, Lowest daily minimum 3.
Records on 18 September 1889 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum3
Highest daily minimum0
Lowest daily minimum3
Heaviest daily rainfall0
Heaviest daily snowfall0
Deepest snow cover0
Records on 18 September 1889 by timescale Records on 18 September 1889 by timescale: all-time 0, monthly 1, daily 5. 0246all-time: 0monthly: 1daily: 5all-timemonthlydaily
Records on 18 September 1889 by timescale: all-time 0, monthly 1, daily 5.
Records on 18 September 1889 by timescale
TimescaleRecords
all-time0
monthly1
daily5

How Much Records Were Beaten By

6 broken records
Histogram of margins by which records were beaten on 18 September 1889 Margins by which the 6 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 2.2. Ties are not counted. 011220.0 to 0.5: 10.5 to 1.0: 11.0 to 1.5: 21.5 to 2.0: 02.0 to 2.5: 20.0 to 0.50.5 to 1.01.0 to 1.51.5 to 2.02.0 to 2.5
Margins by which the 6 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 2.2. Ties are not counted.
Histogram of margins by which records were beaten on 18 September 1889
MarginRecords
0.0 to 0.51
0.5 to 1.01
1.0 to 1.52
1.5 to 2.00
2.0 to 2.52

Top 20 by Significance

18 September 1889
Top 6 records on 18 September 1889 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
18 September 1889Bologna, ITdaily low min9.3 C (48.7 F)1.1 C (2.0 F)60 years28 of 100 (Routine)
18 September 1889Praha-Klementinum, CZdaily low max9.2 C (48.6 F)2.1 C (3.8 F)30 years24 of 100 (Routine)
18 September 1889Wien, ATmonthly low max7.2 C (45.0 F)0.6 C (1.1 F)21 years20 of 100 (Routine)
18 September 1889Oxford, GBdaily low min1.6 C (34.9 F)0.2 C (0.4 F)40 years19 of 100 (Routine)
18 September 1889Praha-Klementinum, CZdaily low min4.4 C (39.9 F)1.0 C (1.8 F)3 years13 of 100 (Routine)
18 September 1889Sydney (Observatory Hill), AUdaily low max13.2 C (55.8 F)2.2 C (4.0 F)8 years11 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 1889
Records on 09-18 in each year Records set or tied on this calendar date in each year from 1803 to 1889. 1889 had 6 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: 1,1932019: 7612020: 6812021: 5822022: 6122023: 6392024: 6872025: 4701803187118971914193119481965198219992016
Records set or tied on this calendar date in each year from 1803 to 1889. 1889 had 6 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
20181,193
2019761
2020681
2021582
2022612
2023639
2024687
2025470

Download the Data

  • Data for records on 1889-09-18: 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 (2025-12-31).