Daily records
Page built 2026-10-19
Data as of 2026-10-15
Search
Built 2026-10-19 (19 October 2026)

Weather Records on 30 June 1911

12 weather records were set or tied worldwide on 30 June 1911. Highest significance: Yarmouth, CA.

Key Facts for 30 June 1911

  • On 30 June 1911, 12 weather records were set or tied at long-record stations worldwide.
  • 8 were record highs and 3 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 4 monthly and 8 daily.
  • Yarmouth set a monthly record high minimum temperature of 17.8 C (64.0 F) on 30 June 1911.
  • Across 160 earlier years (1826 to 2026) the same calendar date averaged 452 records.

Record Map

12 stations
Weather records on 30 June 1911 12 station records on 30 June 1911 are marked on the map, coloured by record type.
12 station records on 30 June 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 30 June 1911: highest significance records shown on the map
StationCountryTypeValueSignificance
YarmouthCanadaRecord high minimum temperature17.8 C (64.0 F)27 of 100 (Routine)
La Crosse Wb CityUnited StatesRecord high minimum temperature22.8 C (73.0 F)17 of 100 (Routine)
Huron Rgnl APUnited StatesRecord high maximum temperature37.8 C (100.0 F)17 of 100 (Routine)
TruroCanadaRecord high minimum temperature20.0 C (68.0 F)15 of 100 (Routine)
Grafton City CouncilAustraliaRecord daily precipitation7.6 mm (0.30 in)14 of 100 (Routine)
Huron Rgnl APUnited StatesRecord high minimum temperature23.3 C (73.9 F)14 of 100 (Routine)
Portland Rfc CityUnited StatesRecord low maximum temperature16.7 C (62.1 F)12 of 100 (Routine)
EdmontonCanadaRecord low maximum temperature14.4 C (57.9 F)8 of 100 (Routine)
YarmouthCanadaRecord high maximum temperature26.1 C (79.0 F)5 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord low maximum temperature23.0 C (73.4 F)3 of 100 (Routine)
HalifaxCanadaRecord high minimum temperature16.1 C (61.0 F)3 of 100 (Routine)
ChathamCanadaRecord high minimum temperature18.3 C (64.9 F)1 of 100 (Routine)

Counts by Type and Timescale

12 records
Records on 30 June 1911 by type Records set or tied on 30 June 1911 by type: Highest daily maximum 2, Lowest daily maximum 3, Highest daily minimum 6, Heaviest daily rainfall 1. 0246Highest daily maximum: 2Lowest daily maximum: 3Highest daily minimum: 6Lowest daily minimum: 0Heaviest daily rainfall: 1Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 30 June 1911 by type: Highest daily maximum 2, Lowest daily maximum 3, Highest daily minimum 6, Heaviest daily rainfall 1.
Records on 30 June 1911 by type
Record typeRecords
Highest daily maximum2
Lowest daily maximum3
Highest daily minimum6
Lowest daily minimum0
Heaviest daily rainfall1
Heaviest daily snowfall0
Deepest snow cover0
Records on 30 June 1911 by timescale Records on 30 June 1911 by timescale: all-time 0, monthly 4, daily 8. 02468all-time: 0monthly: 4daily: 8all-timemonthlydaily
Records on 30 June 1911 by timescale: all-time 0, monthly 4, daily 8.
Records on 30 June 1911 by timescale
TimescaleRecords
all-time0
monthly4
daily8

How Much Records Were Beaten By

8 broken records
Histogram of margins by which records were beaten on 30 June 1911 Margins by which the 8 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 4.6. Ties are not counted. 012340 to 1: 11 to 2: 42 to 3: 23 to 4: 04 to 5: 10 to 11 to 22 to 33 to 44 to 5
Margins by which the 8 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 4.6. Ties are not counted.
Histogram of margins by which records were beaten on 30 June 1911
MarginRecords
0 to 11
1 to 24
2 to 32
3 to 40
4 to 51

Top 20 by Significance

30 June 1911
Top 12 records on 30 June 1911 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
30 June 1911Yarmouth, CAmonthly high min17.8 C (64.0 F)1.7 C (3.1 F)25 years27 of 100 (Routine)
30 June 1911La Crosse Wb City, USdaily high min22.8 C (73.0 F)1.7 C (3.1 F)32 years17 of 100 (Routine)
30 June 1911Huron Rgnl AP, USmonthly high max37.8 C (100.0 F)0.6 C (1.1 F)13 years17 of 100 (Routine)
30 June 1911Truro, CAmonthly high min20.0 C (68.0 F)1.1 C (2.0 F)0 years15 of 100 (Routine)
30 June 1911Grafton City Council, AUdaily rain7.6 mm (0.30 in)4.6 mm (0.18 in)28 years14 of 100 (Routine)
30 June 1911Huron Rgnl AP, USdaily high min23.3 C (73.9 F)2.2 C (4.0 F)22 years14 of 100 (Routine)
30 June 1911Portland Rfc City, USdaily low max16.7 C (62.1 F)2.2 C (4.0 F)18 years12 of 100 (Routine)
30 June 1911Edmonton, CAdaily low max14.4 C (57.9 F)1.7 C (3.1 F)9 years8 of 100 (Routine)
30 June 1911Yarmouth, CAmonthly high max (Tie)26.1 C (79.0 F)tie25 years5 of 100 (Routine)
30 June 1911Oran-Hopital Militaire, DZdaily low max (Tie)23.0 C (73.4 F)tie21 years3 of 100 (Routine)
30 June 1911Halifax, CAdaily high min (Tie)16.1 C (61.0 F)tie32 years3 of 100 (Routine)
30 June 1911Chatham, CAdaily high min (Tie)18.3 C (64.9 F)tie9 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

1826 to 1911
Records on 06-30 in each year Records set or tied on this calendar date in each year from 1826 to 1911. 1911 had 12 records. 05001,0001,5002,0001826: 11832: 11835: 21843: 21846: 11848: 21849: 11853: 11855: 11857: 11860: 11863: 11865: 11869: 11871: 11873: 11876: 11879: 21882: 21883: 31885: 41886: 11887: 21888: 21889: 11890: 31891: 21892: 11894: 11895: 11896: 21897: 61898: 31899: 41900: 51901: 91902: 101903: 81904: 201905: 231906: 201907: 121908: 171909: 391910: 571911: 121912: 321913: 991914: 971915: 401916: 661917: 391918: 541919: 721920: 3191921: 1211922: 1331923: 3091924: 1941925: 1131926: 651927: 2401928: 1371929: 2131930: 1681931: 7741932: 1541933: 5711934: 3311935: 3471936: 6201937: 4581938: 3301939: 4381940: 3461941: 3411942: 4081943: 7901944: 2721945: 6711946: 6311947: 4871948: 3401949: 4031950: 4941951: 5171952: 5331953: 4041954: 4261955: 4321956: 4091957: 5921958: 4231959: 9481960: 2701961: 3511962: 3751963: 5601964: 4341965: 2401966: 3791967: 4141968: 7521969: 4591970: 7301971: 4591972: 5581973: 6231974: 6431975: 4141976: 6071977: 6621978: 7211979: 6011980: 9351981: 8381982: 1,2301983: 7521984: 7221985: 8291986: 7451987: 1,0441988: 1,2161989: 9531990: 1,1911991: 1,1291992: 1,6701993: 7111994: 9511995: 1,3541996: 8891997: 9381998: 1,7141999: 9102000: 8612001: 7782002: 9042003: 8962004: 9982005: 1,5262006: 7232007: 7362008: 8522009: 1,0522010: 1,0692011: 1,0572012: 1,4162013: 9632014: 4962015: 1,0182016: 3712017: 6422018: 6252019: 1,0422020: 1,1512021: 1,4422022: 7092023: 5312024: 1,0042025: 8582026: 9991826187919001917193419511968198520022019
Records set or tied on this calendar date in each year from 1826 to 1911. 1911 had 12 records.
Counts for years before the ledger starts come from the same station rules.
Records on 06-30 in each year
YearRecords
18261
18321
18352
18432
18461
18482
18491
18531
18551
18571
18601
18631
18651
18691
18711
18731
18761
18792
18822
18833
18854
18861
18872
18882
18891
18903
18912
18921
18941
18951
18962
18976
18983
18994
19005
19019
190210
19038
190420
190523
190620
190712
190817
190939
191057
191112
191232
191399
191497
191540
191666
191739
191854
191972
1920319
1921121
1922133
1923309
1924194
1925113
192665
1927240
1928137
1929213
1930168
1931774
1932154
1933571
1934331
1935347
1936620
1937458
1938330
1939438
1940346
1941341
1942408
1943790
1944272
1945671
1946631
1947487
1948340
1949403
1950494
1951517
1952533
1953404
1954426
1955432
1956409
1957592
1958423
1959948
1960270
1961351
1962375
1963560
1964434
1965240
1966379
1967414
1968752
1969459
1970730
1971459
1972558
1973623
1974643
1975414
1976607
1977662
1978721
1979601
1980935
1981838
19821,230
1983752
1984722
1985829
1986745
19871,044
19881,216
1989953
19901,191
19911,129
19921,670
1993711
1994951
19951,354
1996889
1997938
19981,714
1999910
2000861
2001778
2002904
2003896
2004998
20051,526
2006723
2007736
2008852
20091,052
20101,069
20111,057
20121,416
2013963
2014496
20151,018
2016371
2017642
2018625
20191,042
20201,151
20211,442
2022709
2023531
20241,004
2025858
2026999

Download the Data

  • Data for records on 1911-06-30: 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).