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Built 2026-10-19 (19 October 2026)

Weather Records on 20 June 1909

9 weather records were set or tied worldwide on 20 June 1909. Highest significance: Montgomery Wb City, US.

Key Facts for 20 June 1909

  • On 20 June 1909, 9 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 3 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 9 daily.
  • Montgomery Wb City set a daily record precipitation of 33.8 mm (1.3 in) on 20 June 1909.
  • Across 158 earlier years (1800 to 2026) the same calendar date averaged 461 records.

Record Map

9 stations
Weather records on 20 June 1909 9 station records on 20 June 1909 are marked on the map, coloured by record type.
9 station records on 20 June 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 20 June 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Montgomery Wb CityUnited StatesRecord daily precipitation33.8 mm (1.3 in)31 of 100 (Routine)
Port ArthurCanadaRecord high minimum temperature16.1 C (61.0 F)19 of 100 (Routine)
Narre Warren North (Narre WarrAustraliaRecord daily precipitation30.0 mm (1.2 in)18 of 100 (Routine)
Montgomery Wb CityUnited StatesRecord low maximum temperature24.4 C (75.9 F)10 of 100 (Routine)
Mundarlo (Yabtree)AustraliaRecord daily precipitation17.3 mm (0.7 in)9 of 100 (Routine)
HamiltonAustraliaRecord daily precipitation13.7 mm (0.5 in)8 of 100 (Routine)
Cape Otway LighthouseAustraliaRecord high minimum temperature10.0 C (50.0 F)4 of 100 (Routine)
San Diego WboUnited StatesRecord low minimum temperature11.7 C (53.1 F)2 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord low minimum temperature3.3 C (37.9 F)1 of 100 (Routine)

Counts by Type and Timescale

9 records
Records on 20 June 1909 by type Records set or tied on 20 June 1909 by type: Lowest daily maximum 1, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 4. 01234Highest daily maximum: 0Lowest daily maximum: 1Highest daily minimum: 2Lowest daily minimum: 2Heaviest daily rainfall: 4Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 20 June 1909 by type: Lowest daily maximum 1, Highest daily minimum 2, Lowest daily minimum 2, Heaviest daily rainfall 4.
Records on 20 June 1909 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum1
Highest daily minimum2
Lowest daily minimum2
Heaviest daily rainfall4
Heaviest daily snowfall0
Deepest snow cover0
Records on 20 June 1909 by timescale Records on 20 June 1909 by timescale: all-time 0, monthly 0, daily 9. 035810all-time: 0monthly: 0daily: 9all-timemonthlydaily
Records on 20 June 1909 by timescale: all-time 0, monthly 0, daily 9.
Records on 20 June 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily9

How Much Records Were Beaten By

6 broken records
Histogram of margins by which records were beaten on 20 June 1909 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 28.2. Ties are not counted. 012340 to 5: 45 to 10: 110 to 15: 015 to 20: 020 to 25: 025 to 30: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 30
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 28.2. Ties are not counted.
Histogram of margins by which records were beaten on 20 June 1909
MarginRecords
0 to 54
5 to 101
10 to 150
15 to 200
20 to 250
25 to 301

Top 20 by Significance

20 June 1909
Top 9 records on 20 June 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
20 June 1909Montgomery Wb City, USdaily rain33.8 mm (1.3 in)28.2 mm (1.1 in)26 years31 of 100 (Routine)
20 June 1909Port Arthur, CAdaily high min16.1 C (61.0 F)2.8 C (5.0 F)28 years19 of 100 (Routine)
20 June 1909Narre Warren North (Narre Warr, AUdaily rain30.0 mm (1.2 in)6.1 mm (0.24 in)20 years18 of 100 (Routine)
20 June 1909Montgomery Wb City, USdaily low max24.4 C (75.9 F)1.7 C (3.1 F)8 years10 of 100 (Routine)
20 June 1909Mundarlo (Yabtree), AUdaily rain17.3 mm (0.7 in)4.1 mm (0.16 in)0 years9 of 100 (Routine)
20 June 1909Hamilton, AUdaily rain13.7 mm (0.5 in)1.0 mm (0.04 in)13 years8 of 100 (Routine)
20 June 1909Cape Otway Lighthouse, AUdaily high min (Tie)10.0 C (50.0 F)tie40 years4 of 100 (Routine)
20 June 1909San Diego Wbo, USdaily low min (Tie)11.7 C (53.1 F)tie27 years2 of 100 (Routine)
20 June 1909Olympia Priest Pt Park, USdaily low min (Tie)3.3 C (37.9 F)tie15 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

1800 to 1909
Records on 06-20 in each year Records set or tied on this calendar date in each year from 1800 to 1909. 1909 had 9 records. 05001,0001,5002,0001800: 11803: 11813: 11821: 21838: 11839: 11841: 11844: 11846: 21847: 11850: 11855: 21857: 11861: 11865: 21867: 11869: 21872: 11873: 11877: 21879: 11884: 11886: 21887: 21891: 21892: 21893: 21895: 41896: 31897: 61898: 31899: 61900: 41901: 51902: 71903: 221904: 131905: 141906: 181907: 101908: 301909: 91910: 271911: 271912: 171913: 301914: 531915: 751916: 831917: 961918: 541919: 671920: 401921: 421922: 611923: 2631924: 2041925: 4831926: 2281927: 1931928: 1991929: 1371930: 1431931: 5361932: 1821933: 6761934: 3011935: 3371936: 5291937: 4121938: 3261939: 2701940: 4691941: 2001942: 7571943: 4471944: 3151945: 7691946: 8491947: 3871948: 5541949: 3141950: 3281951: 2891952: 3181953: 9981954: 4141955: 2911956: 4841957: 5981958: 6031959: 5041960: 4511961: 8361962: 1731963: 3791964: 7291965: 4631966: 4411967: 6871968: 5591969: 9821970: 4821971: 3951972: 6601973: 5531974: 7431975: 9841976: 8991977: 4531978: 4801979: 7271980: 9221981: 9871982: 8011983: 7241984: 6861985: 8111986: 7321987: 9601988: 1,2221989: 9181990: 8991991: 1,0851992: 1,0491993: 9641994: 9251995: 1,2601996: 1,1231997: 7381998: 1,6271999: 9062000: 1,3282001: 7712002: 9552003: 8432004: 1,0712005: 1,0552006: 8202007: 1,2082008: 6692009: 1,0602010: 8652011: 1,3592012: 1,0452013: 8792014: 3812015: 6372016: 1,3522017: 1,0862018: 6352019: 6932020: 5902021: 1,1612022: 9722023: 1,2652024: 7832025: 9442026: 7571800186919001916193219481964198019962012
Records set or tied on this calendar date in each year from 1800 to 1909. 1909 had 9 records.
Counts for years before the ledger starts come from the same station rules.
Records on 06-20 in each year
YearRecords
18001
18031
18131
18212
18381
18391
18411
18441
18462
18471
18501
18552
18571
18611
18652
18671
18692
18721
18731
18772
18791
18841
18862
18872
18912
18922
18932
18954
18963
18976
18983
18996
19004
19015
19027
190322
190413
190514
190618
190710
190830
19099
191027
191127
191217
191330
191453
191575
191683
191796
191854
191967
192040
192142
192261
1923263
1924204
1925483
1926228
1927193
1928199
1929137
1930143
1931536
1932182
1933676
1934301
1935337
1936529
1937412
1938326
1939270
1940469
1941200
1942757
1943447
1944315
1945769
1946849
1947387
1948554
1949314
1950328
1951289
1952318
1953998
1954414
1955291
1956484
1957598
1958603
1959504
1960451
1961836
1962173
1963379
1964729
1965463
1966441
1967687
1968559
1969982
1970482
1971395
1972660
1973553
1974743
1975984
1976899
1977453
1978480
1979727
1980922
1981987
1982801
1983724
1984686
1985811
1986732
1987960
19881,222
1989918
1990899
19911,085
19921,049
1993964
1994925
19951,260
19961,123
1997738
19981,627
1999906
20001,328
2001771
2002955
2003843
20041,071
20051,055
2006820
20071,208
2008669
20091,060
2010865
20111,359
20121,045
2013879
2014381
2015637
20161,352
20171,086
2018635
2019693
2020590
20211,161
2022972
20231,265
2024783
2025944
2026757

Download the Data

  • Data for records on 1909-06-20: 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).