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Weather Records on 12 October 1909

30 weather records were set or tied worldwide on 12 October 1909. Highest significance: Port Dover, CA.

Key Facts for 12 October 1909

  • On 12 October 1909, 30 weather records were set or tied at long-record stations worldwide.
  • 9 were record highs and 13 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 2 monthly and 28 daily.
  • Port Dover set a monthly record daily snowfall of 19.8 cm (7.8 in) on 12 October 1909.
  • Across 163 earlier years (1805 to 2026) the same calendar date averaged 454 records.

Record Map

30 stations
Weather records on 12 October 1909 30 station records on 12 October 1909 are marked on the map, coloured by record type.
30 station records on 12 October 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 12 October 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Port DoverCanadaRecord daily snowfall19.8 cm (7.8 in)46 of 100 (Notable)
Madison Wb CityUnited StatesRecord low maximum temperature-0.6 C (30.9 F)23 of 100 (Routine)
Milwaukee Wb CityUnited StatesRecord low maximum temperature1.1 C (34.0 F)21 of 100 (Routine)
Little Rock St CapitolUnited StatesRecord low maximum temperature11.1 C (52.0 F)20 of 100 (Routine)
StonecliffeCanadaRecord daily precipitation19.6 mm (0.8 in)19 of 100 (Routine)
StratfordCanadaRecord daily snowfall0.8 cm (0.3 in)19 of 100 (Routine)
LakefieldCanadaRecord daily precipitation35.6 mm (1.4 in)19 of 100 (Routine)
Goderich LighthouseCanadaRecord daily snowfall2.5 cm (1.0 in)18 of 100 (Routine)
HalifaxCanadaRecord high minimum temperature13.9 C (57.0 F)18 of 100 (Routine)
TruroCanadaRecord high minimum temperature13.9 C (57.0 F)17 of 100 (Routine)
Madison Wb CityUnited StatesRecord low minimum temperature-2.2 C (28.0 F)17 of 100 (Routine)
Port DoverCanadaRecord low maximum temperature3.3 C (37.9 F)16 of 100 (Routine)
Toledo BladeUnited StatesRecord low maximum temperature5.0 C (41.0 F)14 of 100 (Routine)
East Toorale (Toorale Station)AustraliaRecord daily precipitation1.0 mm (0.04 in)13 of 100 (Routine)
Owen SoundCanadaRecord daily snowfall1.0 cm (0.4 in)13 of 100 (Routine)
StratfordCanadaRecord low maximum temperature5.0 C (41.0 F)13 of 100 (Routine)
DalhousieCanadaRecord high minimum temperature12.2 C (54.0 F)12 of 100 (Routine)
Saint JohnCanadaRecord high minimum temperature13.3 C (55.9 F)11 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low maximum temperature0.6 C (33.1 F)11 of 100 (Routine)
Fredericton UnbCanadaRecord high minimum temperature12.8 C (55.0 F)9 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord low minimum temperature-3.3 C (26.1 F)9 of 100 (Routine)
SydneyCanadaRecord high minimum temperature13.3 C (55.9 F)8 of 100 (Routine)
Port ArthurCanadaRecord low maximum temperature3.3 C (37.9 F)6 of 100 (Routine)
CharlottetownCanadaRecord high minimum temperature13.3 C (55.9 F)6 of 100 (Routine)
SouthamptonCanadaRecord daily precipitation12.4 mm (0.5 in)5 of 100 (Routine)
Dubuque RiverUnited StatesRecord low maximum temperature1.1 C (34.0 F)5 of 100 (Routine)
Cleveland 2717 EuclidUnited StatesRecord low maximum temperature5.6 C (42.1 F)3 of 100 (Routine)
Milwaukee Wb CityUnited StatesRecord low minimum temperature-2.2 C (28.0 F)3 of 100 (Routine)
ChathamCanadaRecord high minimum temperature12.8 C (55.0 F)1 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord high minimum temperature13.9 C (57.0 F)1 of 100 (Routine)

Counts by Type and Timescale

30 records
Records on 12 October 1909 by type Records set or tied on 12 October 1909 by type: Lowest daily maximum 10, Highest daily minimum 9, Lowest daily minimum 3, Heaviest daily rainfall 4, Heaviest daily snowfall 4. 035810Highest daily maximum: 0Lowest daily maximum: 10Highest daily minimum: 9Lowest daily minimum: 3Heaviest daily rainfall: 4Heaviest daily snowfall: 4Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 12 October 1909 by type: Lowest daily maximum 10, Highest daily minimum 9, Lowest daily minimum 3, Heaviest daily rainfall 4, Heaviest daily snowfall 4.
Records on 12 October 1909 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum10
Highest daily minimum9
Lowest daily minimum3
Heaviest daily rainfall4
Heaviest daily snowfall4
Deepest snow cover0
Records on 12 October 1909 by timescale Records on 12 October 1909 by timescale: all-time 0, monthly 2, daily 28. 0102030all-time: 0monthly: 2daily: 28all-timemonthlydaily
Records on 12 October 1909 by timescale: all-time 0, monthly 2, daily 28.
Records on 12 October 1909 by timescale
TimescaleRecords
all-time0
monthly2
daily28

How Much Records Were Beaten By

25 broken records
Histogram of margins by which records were beaten on 12 October 1909 Margins by which the 25 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 145.0. Ties are not counted. 01020300 to 20: 2320 to 40: 140 to 60: 060 to 80: 080 to 100: 0100 to 120: 0120 to 140: 0140 to 160: 10 to 2020 to 4040 to 6060 to 8080 to 100100 to 120120 to 140140 to 160
Margins by which the 25 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 145.0. Ties are not counted.
Histogram of margins by which records were beaten on 12 October 1909
MarginRecords
0 to 2023
20 to 401
40 to 600
60 to 800
80 to 1000
100 to 1200
120 to 1400
140 to 1601

Top 20 by Significance

12 October 1909
Top 20 records on 12 October 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 1909Port Dover, CAmonthly snowfall19.8 cm (7.8 in)14.5 cm (5.7 in)13 years46 of 100 (Notable)
12 October 1909Madison Wb City, USdaily low max-0.6 C (30.9 F)5.6 C (10.1 F)34 years23 of 100 (Routine)
12 October 1909Milwaukee Wb City, USdaily low max1.1 C (34.0 F)5.0 C (9.0 F)34 years21 of 100 (Routine)
12 October 1909Little Rock St Capitol, USdaily low max11.1 C (52.0 F)5.6 C (10.1 F)21 years20 of 100 (Routine)
12 October 1909Stonecliffe, CAdaily rain19.6 mm (0.8 in)7.7 mm (0.30 in)22 years19 of 100 (Routine)
12 October 1909Stratford, CAdaily snowfall0.8 cm (0.3 in)0.8 cm (0.3 in)43 years19 of 100 (Routine)
12 October 1909Lakefield, CAdaily rain35.6 mm (1.4 in)9.9 mm (0.39 in)11 years19 of 100 (Routine)
12 October 1909Goderich Lighthouse, CAdaily snowfall2.5 cm (1.0 in)2.5 cm (1.0 in)33 years18 of 100 (Routine)
12 October 1909Halifax, CAdaily high min13.9 C (57.0 F)1.7 C (3.1 F)37 years18 of 100 (Routine)
12 October 1909Truro, CAdaily high min13.9 C (57.0 F)2.2 C (4.0 F)35 years17 of 100 (Routine)
12 October 1909Madison Wb City, USdaily low min-2.2 C (28.0 F)1.6 C (2.9 F)33 years17 of 100 (Routine)
12 October 1909Port Dover, CAdaily low max3.3 C (37.9 F)1.7 C (3.1 F)33 years16 of 100 (Routine)
12 October 1909Toledo Blade, USdaily low max5.0 C (41.0 F)0.6 C (1.1 F)33 years14 of 100 (Routine)
12 October 1909East Toorale (Toorale Station), AUdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)30 years13 of 100 (Routine)
12 October 1909Owen Sound, CAdaily snowfall1.0 cm (0.4 in)1.0 cm (0.4 in)29 years13 of 100 (Routine)
12 October 1909Stratford, CAdaily low max5.0 C (41.0 F)2.2 C (4.0 F)21 years13 of 100 (Routine)
12 October 1909Dalhousie, CAdaily high min12.2 C (54.0 F)2.8 C (5.0 F)11 years12 of 100 (Routine)
12 October 1909Saint John, CAdaily high min13.3 C (55.9 F)2.7 C (4.9 F)8 years11 of 100 (Routine)
12 October 1909La Crosse Wb City, USdaily low max0.6 C (33.1 F)5.0 C (9.0 F)2 years11 of 100 (Routine)
12 October 1909Fredericton Unb, CAdaily high min12.8 C (55.0 F)1.7 C (3.1 F)10 years9 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

1805 to 1909
Records on 10-12 in each year Records set or tied on this calendar date in each year from 1805 to 1909. 1909 had 30 records. 01,0002,0003,0001805: 21809: 11810: 11814: 31822: 11839: 11841: 11843: 11850: 11852: 11854: 11859: 11860: 21861: 11867: 11871: 31873: 21875: 21876: 51879: 21881: 21884: 11885: 21886: 11887: 21888: 11889: 11890: 31891: 11892: 11893: 21894: 21895: 21896: 31897: 31898: 21899: 31900: 21901: 61902: 141903: 161904: 301905: 131906: 161907: 101908: 131909: 301910: 131911: 101912: 301913: 331914: 171915: 341916: 291917: 531918: 291919: 531920: 791921: 1021922: 211923: 2001924: 1291925: 1071926: 2011927: 1951928: 7141929: 1651930: 6061931: 2831932: 3981933: 1551934: 4771935: 2091936: 3011937: 1851938: 4701939: 1981940: 2351941: 2261942: 5401943: 4181944: 2741945: 3211946: 5541947: 3581948: 3111949: 7251950: 5941951: 3911952: 3521953: 2521954: 9111955: 3831956: 8991957: 4731958: 4481959: 5011960: 4491961: 4361962: 9711963: 4591964: 6361965: 1571966: 4231967: 6231968: 4431969: 1,8281970: 7631971: 3821972: 4121973: 6731974: 3691975: 8301976: 5821977: 8321978: 5251979: 8981980: 7411981: 1,2011982: 7771983: 9921984: 6361985: 8721986: 1,5101987: 1,5301988: 1,0151989: 5431990: 1,3251991: 9481992: 8651993: 1,1451994: 9341995: 1,2381996: 8161997: 1,8511998: 7411999: 6412000: 1,0952001: 1,1942002: 1,1392003: 1,0432004: 7502005: 8722006: 1,3572007: 5662008: 1,6692009: 2,3002010: 7972011: 9062012: 9212013: 5582014: 5142015: 9642016: 3742017: 1,0682018: 1,1952019: 1,3212020: 6552021: 1,2942022: 4392023: 9042024: 9582025: 6242026: 7101805187518971914193119481965198219992016
Records set or tied on this calendar date in each year from 1805 to 1909. 1909 had 30 records.
Counts for years before the ledger starts come from the same station rules.
Records on 10-12 in each year
YearRecords
18052
18091
18101
18143
18221
18391
18411
18431
18501
18521
18541
18591
18602
18611
18671
18713
18732
18752
18765
18792
18812
18841
18852
18861
18872
18881
18891
18903
18911
18921
18932
18942
18952
18963
18973
18982
18993
19002
19016
190214
190316
190430
190513
190616
190710
190813
190930
191013
191110
191230
191333
191417
191534
191629
191753
191829
191953
192079
1921102
192221
1923200
1924129
1925107
1926201
1927195
1928714
1929165
1930606
1931283
1932398
1933155
1934477
1935209
1936301
1937185
1938470
1939198
1940235
1941226
1942540
1943418
1944274
1945321
1946554
1947358
1948311
1949725
1950594
1951391
1952352
1953252
1954911
1955383
1956899
1957473
1958448
1959501
1960449
1961436
1962971
1963459
1964636
1965157
1966423
1967623
1968443
19691,828
1970763
1971382
1972412
1973673
1974369
1975830
1976582
1977832
1978525
1979898
1980741
19811,201
1982777
1983992
1984636
1985872
19861,510
19871,530
19881,015
1989543
19901,325
1991948
1992865
19931,145
1994934
19951,238
1996816
19971,851
1998741
1999641
20001,095
20011,194
20021,139
20031,043
2004750
2005872
20061,357
2007566
20081,669
20092,300
2010797
2011906
2012921
2013558
2014514
2015964
2016374
20171,068
20181,195
20191,321
2020655
20211,294
2022439
2023904
2024958
2025624
2026710

Download the Data

  • Data for records on 1909-10-12: 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).