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Weather Records on 21 June 1909

19 weather records were set or tied worldwide on 21 June 1909. Highest significance: Dublin Phoenix Park, IE.

Key Facts for 21 June 1909

  • On 21 June 1909, 19 weather records were set or tied at long-record stations worldwide.
  • 12 were record highs and 3 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 19 daily.
  • Dublin Phoenix Park set a daily record precipitation of 15.0 mm (0.6 in) on 21 June 1909.
  • Across 164 earlier years (1802 to 2025) the same calendar date averaged 432 records.

Record Map

19 stations
Weather records on 21 June 1909 19 station records on 21 June 1909 are marked on the map, coloured by record type.
19 station records on 21 June 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 June 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Dublin Phoenix ParkIrelandRecord daily precipitation15.0 mm (0.6 in)20 of 100 (Routine)
Gronbaek-AllingskovgardDenmarkRecord daily precipitation21.2 mm (0.8 in)19 of 100 (Routine)
Fredericton UnbCanadaRecord high minimum temperature18.3 C (64.9 F)17 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord high minimum temperature21.1 C (70.0 F)17 of 100 (Routine)
VestervigDenmarkRecord daily precipitation8.1 mm (0.32 in)15 of 100 (Routine)
StratfordCanadaRecord high maximum temperature30.0 C (86.0 F)13 of 100 (Routine)
PortlandUnited StatesRecord high minimum temperature20.0 C (68.0 F)13 of 100 (Routine)
Ilulissat (Jakobshavn)Greenland [Denmark]Record high minimum temperature9.6 C (49.3 F)12 of 100 (Routine)
Owen SoundCanadaRecord high maximum temperature32.2 C (90.0 F)9 of 100 (Routine)
TorontoCanadaRecord high maximum temperature32.2 C (90.0 F)9 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord low minimum temperature4.4 C (39.9 F)9 of 100 (Routine)
ChathamCanadaRecord high minimum temperature17.8 C (64.0 F)8 of 100 (Routine)
ArmaghUnited KingdomRecord low maximum temperature13.1 C (55.6 F)8 of 100 (Routine)
Glenthompson (Brie Brie)AustraliaRecord daily precipitation10.9 mm (0.4 in)4 of 100 (Routine)
Winnipeg St Johns CollCanadaRecord high minimum temperature17.2 C (63.0 F)3 of 100 (Routine)
ConcordUnited StatesRecord high minimum temperature20.0 C (68.0 F)3 of 100 (Routine)
Alice Springs Post OfficeAustraliaRecord high maximum temperature29.4 C (84.9 F)2 of 100 (Routine)
StonecliffeCanadaRecord high minimum temperature17.2 C (63.0 F)2 of 100 (Routine)
San Diego WboUnited StatesRecord low maximum temperature17.8 C (64.0 F)1 of 100 (Routine)

Counts by Type and Timescale

19 records
Records on 21 June 1909 by type Records set or tied on 21 June 1909 by type: Highest daily maximum 4, Lowest daily maximum 2, Highest daily minimum 8, Lowest daily minimum 1, Heaviest daily rainfall 4. 02468Highest daily maximum: 4Lowest daily maximum: 2Highest daily minimum: 8Lowest daily minimum: 1Heaviest daily rainfall: 4Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 June 1909 by type: Highest daily maximum 4, Lowest daily maximum 2, Highest daily minimum 8, Lowest daily minimum 1, Heaviest daily rainfall 4.
Records on 21 June 1909 by type
Record typeRecords
Highest daily maximum4
Lowest daily maximum2
Highest daily minimum8
Lowest daily minimum1
Heaviest daily rainfall4
Heaviest daily snowfall0
Deepest snow cover0
Records on 21 June 1909 by timescale Records on 21 June 1909 by timescale: all-time 0, monthly 0, daily 19. 05101520all-time: 0monthly: 0daily: 19all-timemonthlydaily
Records on 21 June 1909 by timescale: all-time 0, monthly 0, daily 19.
Records on 21 June 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily19

How Much Records Were Beaten By

14 broken records
Histogram of margins by which records were beaten on 21 June 1909 Margins by which the 14 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 11.1. Ties are not counted. 0358100 to 2: 102 to 4: 24 to 6: 06 to 8: 18 to 10: 010 to 12: 10 to 22 to 44 to 66 to 88 to 1010 to 12
Margins by which the 14 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 11.1. Ties are not counted.
Histogram of margins by which records were beaten on 21 June 1909
MarginRecords
0 to 210
2 to 42
4 to 60
6 to 81
8 to 100
10 to 121

Top 20 by Significance

21 June 1909
Top 19 records on 21 June 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 June 1909Dublin Phoenix Park, IEdaily rain15.0 mm (0.6 in)6.1 mm (0.24 in)40 years20 of 100 (Routine)
21 June 1909Gronbaek-Allingskovgard, DKdaily rain21.2 mm (0.8 in)11.1 mm (0.4 in)19 years19 of 100 (Routine)
21 June 1909Fredericton Unb, CAdaily high min18.3 C (64.9 F)2.7 C (4.9 F)25 years17 of 100 (Routine)
21 June 1909La Crosse Wb City, USdaily high min21.1 C (70.0 F)1.7 C (3.1 F)34 years17 of 100 (Routine)
21 June 1909Vestervig, DKdaily rain8.1 mm (0.32 in)2.3 mm (0.09 in)29 years15 of 100 (Routine)
21 June 1909Stratford, CAdaily high max30.0 C (86.0 F)1.1 C (2.0 F)24 years13 of 100 (Routine)
21 June 1909Portland, USdaily high min20.0 C (68.0 F)1.1 C (2.0 F)24 years13 of 100 (Routine)
21 June 1909Ilulissat (Jakobshavn), GLdaily high min9.6 C (49.3 F)0.1 C (0.2 F)31 years12 of 100 (Routine)
21 June 1909Owen Sound, CAdaily high max32.2 C (90.0 F)0.5 C (0.9 F)20 years9 of 100 (Routine)
21 June 1909Toronto, CAdaily high max32.2 C (90.0 F)1.1 C (2.0 F)0 years9 of 100 (Routine)
21 June 1909Olympia Priest Pt Park, USdaily low min4.4 C (39.9 F)0.6 C (1.1 F)15 years9 of 100 (Routine)
21 June 1909Chatham, CAdaily high min17.8 C (64.0 F)0.6 C (1.1 F)14 years8 of 100 (Routine)
21 June 1909Armagh, GBdaily low max13.1 C (55.6 F)0.6 C (1.1 F)2 years8 of 100 (Routine)
21 June 1909Glenthompson (Brie Brie), AUdaily rain10.9 mm (0.4 in)0.7 mm (0.03 in)0 years4 of 100 (Routine)
21 June 1909Winnipeg St Johns Coll, CAdaily high min (Tie)17.2 C (63.0 F)tie34 years3 of 100 (Routine)
21 June 1909Concord, USdaily high min (Tie)20.0 C (68.0 F)tie36 years3 of 100 (Routine)
21 June 1909Alice Springs Post Office, AUdaily high max (Tie)29.4 C (84.9 F)tie25 years2 of 100 (Routine)
21 June 1909Stonecliffe, CAdaily high min (Tie)17.2 C (63.0 F)tie20 years2 of 100 (Routine)
21 June 1909San Diego Wbo, USdaily low max (Tie)17.8 C (64.0 F)tie14 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

1802 to 1909
Records on 06-21 in each year Records set or tied on this calendar date in each year from 1802 to 1909. 1909 had 19 records. 05001,0001,5002,0001802: 11803: 21805: 11814: 11821: 31828: 11831: 11839: 21846: 11853: 11855: 11861: 31865: 11868: 11869: 41870: 31871: 11873: 11874: 11875: 21879: 11880: 11881: 11882: 11883: 11884: 21885: 11886: 31887: 11888: 31889: 11891: 11892: 21893: 71895: 61896: 31897: 31898: 61899: 61900: 61901: 51902: 201903: 151904: 71905: 141906: 191907: 151908: 201909: 191910: 361911: 121912: 141913: 341914: 241915: 401916: 801917: 971918: 771919: 321920: 421921: 851922: 431923: 2291924: 1241925: 3331926: 1621927: 1461928: 1391929: 841930: 1771931: 3401932: 1801933: 6451934: 2231935: 2471936: 6421937: 4751938: 3961939: 2501940: 6741941: 4011942: 3401943: 4391944: 4261945: 7091946: 3861947: 6371948: 3921949: 3911950: 3291951: 3471952: 5021953: 7611954: 5011955: 2711956: 5341957: 9321958: 6271959: 3561960: 4711961: 9561962: 1761963: 6671964: 4581965: 4001966: 4671967: 7891968: 6541969: 6871970: 6141971: 3941972: 9341973: 6831974: 5981975: 9961976: 7461977: 4761978: 3681979: 8571980: 6771981: 8891982: 6581983: 7521984: 9131985: 5161986: 6011987: 9401988: 1,8341989: 8561990: 8471991: 1,0671992: 1,6791993: 9391994: 7771995: 9781996: 1,0751997: 1,0371998: 1,7461999: 9942000: 1,2122001: 6582002: 8282003: 1,0342004: 6972005: 1,0902006: 7742007: 1,0852008: 5802009: 1,0602010: 8522011: 1,3402012: 1,1512013: 5712014: 4342015: 7072016: 8772017: 9542018: 5732019: 9562020: 5162021: 1,1332022: 7712023: 9872024: 6792025: 1,5351802187318951912192919461963198019972014
Records set or tied on this calendar date in each year from 1802 to 1909. 1909 had 19 records.
Counts for years before the ledger starts come from the same station rules.
Records on 06-21 in each year
YearRecords
18021
18032
18051
18141
18213
18281
18311
18392
18461
18531
18551
18613
18651
18681
18694
18703
18711
18731
18741
18752
18791
18801
18811
18821
18831
18842
18851
18863
18871
18883
18891
18911
18922
18937
18956
18963
18973
18986
18996
19006
19015
190220
190315
19047
190514
190619
190715
190820
190919
191036
191112
191214
191334
191424
191540
191680
191797
191877
191932
192042
192185
192243
1923229
1924124
1925333
1926162
1927146
1928139
192984
1930177
1931340
1932180
1933645
1934223
1935247
1936642
1937475
1938396
1939250
1940674
1941401
1942340
1943439
1944426
1945709
1946386
1947637
1948392
1949391
1950329
1951347
1952502
1953761
1954501
1955271
1956534
1957932
1958627
1959356
1960471
1961956
1962176
1963667
1964458
1965400
1966467
1967789
1968654
1969687
1970614
1971394
1972934
1973683
1974598
1975996
1976746
1977476
1978368
1979857
1980677
1981889
1982658
1983752
1984913
1985516
1986601
1987940
19881,834
1989856
1990847
19911,067
19921,679
1993939
1994777
1995978
19961,075
19971,037
19981,746
1999994
20001,212
2001658
2002828
20031,034
2004697
20051,090
2006774
20071,085
2008580
20091,060
2010852
20111,340
20121,151
2013571
2014434
2015707
2016877
2017954
2018573
2019956
2020516
20211,133
2022771
2023987
2024679
20251,535

Download the Data

  • Data for records on 1909-06-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).