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Weather Records on 15 May 1911

27 weather records were set or tied worldwide on 15 May 1911. Highest significance: Port Dover, CA.

Key Facts for 15 May 1911

  • On 15 May 1911, 27 weather records were set or tied at long-record stations worldwide.
  • 14 were record highs and 1 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 3 monthly and 24 daily.
  • Port Dover set a monthly record high minimum temperature of 18.9 C (66.0 F) on 15 May 1911.
  • Across 162 earlier years (1820 to 2026) the same calendar date averaged 433 records.

Record Map

27 stations
Weather records on 15 May 1911 27 station records on 15 May 1911 are marked on the map, coloured by record type.
27 station records on 15 May 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 15 May 1911: highest significance records shown on the map
StationCountryTypeValueSignificance
Port DoverCanadaRecord high minimum temperature18.9 C (66.0 F)23 of 100 (Routine)
KarlshamnSwedenRecord daily precipitation14.5 mm (0.6 in)20 of 100 (Routine)
Kalmar_DSwedenRecord daily precipitation18.7 mm (0.7 in)20 of 100 (Routine)
Koebenhavn - Meteorologisk InsDenmarkRecord daily precipitation20.2 mm (0.8 in)20 of 100 (Routine)
LjungbySwedenRecord daily precipitation17.9 mm (0.7 in)20 of 100 (Routine)
VaexjoeSwedenRecord daily precipitation22.8 mm (0.9 in)19 of 100 (Routine)
JonkopingSwedenRecord daily precipitation9.5 mm (0.37 in)19 of 100 (Routine)
Algiers-Ville/UniversiteAlgeriaRecord daily precipitation14.7 mm (0.6 in)17 of 100 (Routine)
VestervigDenmarkRecord daily precipitation9.1 mm (0.36 in)14 of 100 (Routine)
GorlitzGermanyRecord high minimum temperature16.0 C (60.8 F)14 of 100 (Routine)
DurhamUnited KingdomRecord high minimum temperature9.4 C (48.9 F)14 of 100 (Routine)
Forbes (Camp Street)AustraliaRecord high maximum temperature25.0 C (77.0 F)13 of 100 (Routine)
BrantfordCanadaRecord high minimum temperature13.9 C (57.0 F)13 of 100 (Routine)
Velikie LukiRussiaRecord daily precipitation8.2 mm (0.32 in)13 of 100 (Routine)
TranebjergDenmarkRecord high minimum temperature13.3 C (55.9 F)12 of 100 (Routine)
DalhousieCanadaRecord high minimum temperature10.6 C (51.1 F)10 of 100 (Routine)
Dubuque RiverUnited StatesRecord high minimum temperature19.4 C (66.9 F)9 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord low maximum temperature14.4 C (57.9 F)9 of 100 (Routine)
VestervigDenmarkRecord high minimum temperature13.5 C (56.3 F)7 of 100 (Routine)
Nordby (Fano)DenmarkRecord high minimum temperature13.8 C (56.8 F)7 of 100 (Routine)
KarlsruheGermanyRecord high minimum temperature13.8 C (56.8 F)7 of 100 (Routine)
Heinersreuth-VollhofGermanyRecord high minimum temperature12.3 C (54.1 F)7 of 100 (Routine)
Huron Rgnl APUnited StatesRecord high minimum temperature18.3 C (64.9 F)5 of 100 (Routine)
Koebenhavn: Landbohojskolen-1DenmarkRecord daily precipitation24.0 mm (0.9 in)4 of 100 (Routine)
VarbergSwedenRecord daily precipitation5.0 mm (0.20 in)3 of 100 (Routine)
Parry SoundCanadaRecord daily precipitation16.0 mm (0.6 in)2 of 100 (Routine)
NurnbergGermanyRecord high minimum temperature13.2 C (55.8 F)2 of 100 (Routine)

Counts by Type and Timescale

27 records
Records on 15 May 1911 by type Records set or tied on 15 May 1911 by type: Highest daily maximum 1, Lowest daily maximum 1, Highest daily minimum 13, Heaviest daily rainfall 12. 051015Highest daily maximum: 1Lowest daily maximum: 1Highest daily minimum: 13Lowest daily minimum: 0Heaviest daily rainfall: 12Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 15 May 1911 by type: Highest daily maximum 1, Lowest daily maximum 1, Highest daily minimum 13, Heaviest daily rainfall 12.
Records on 15 May 1911 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum1
Highest daily minimum13
Lowest daily minimum0
Heaviest daily rainfall12
Heaviest daily snowfall0
Deepest snow cover0
Records on 15 May 1911 by timescale Records on 15 May 1911 by timescale: all-time 0, monthly 3, daily 24. 0102030all-time: 0monthly: 3daily: 24all-timemonthlydaily
Records on 15 May 1911 by timescale: all-time 0, monthly 3, daily 24.
Records on 15 May 1911 by timescale
TimescaleRecords
all-time0
monthly3
daily24

How Much Records Were Beaten By

23 broken records
Histogram of margins by which records were beaten on 15 May 1911 Margins by which the 23 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 11.9. Ties are not counted. 0510150 to 2: 142 to 4: 34 to 6: 16 to 8: 38 to 10: 110 to 12: 10 to 22 to 44 to 66 to 88 to 1010 to 12
Margins by which the 23 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 11.9. Ties are not counted.
Histogram of margins by which records were beaten on 15 May 1911
MarginRecords
0 to 214
2 to 43
4 to 61
6 to 83
8 to 101
10 to 121

Top 20 by Significance

15 May 1911
Top 20 records on 15 May 1911 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
15 May 1911Port Dover, CAmonthly high min18.9 C (66.0 F)0.6 C (1.1 F)30 years23 of 100 (Routine)
15 May 1911Karlshamn, SEdaily rain14.5 mm (0.6 in)6.0 mm (0.24 in)34 years20 of 100 (Routine)
15 May 1911Kalmar_D, SEdaily rain18.7 mm (0.7 in)11.9 mm (0.5 in)4 years20 of 100 (Routine)
15 May 1911Koebenhavn - Meteorologisk Ins, DKdaily rain20.2 mm (0.8 in)7.8 mm (0.31 in)12 years20 of 100 (Routine)
15 May 1911Ljungby, SEdaily rain17.9 mm (0.7 in)9.4 mm (0.37 in)15 years20 of 100 (Routine)
15 May 1911Vaexjoe, SEdaily rain22.8 mm (0.9 in)4.5 mm (0.18 in)16 years19 of 100 (Routine)
15 May 1911Jonkoping, SEdaily rain9.5 mm (0.37 in)2.6 mm (0.10 in)30 years19 of 100 (Routine)
15 May 1911Algiers-Ville/Universite, DZdaily rain14.7 mm (0.6 in)6.5 mm (0.26 in)22 years17 of 100 (Routine)
15 May 1911Vestervig, DKdaily rain9.1 mm (0.36 in)1.2 mm (0.05 in)29 years14 of 100 (Routine)
15 May 1911Gorlitz, DEdaily high min16.0 C (60.8 F)1.9 C (3.4 F)21 years14 of 100 (Routine)
15 May 1911Durham, GBdaily high min9.4 C (48.9 F)1.4 C (2.5 F)23 years14 of 100 (Routine)
15 May 1911Forbes (Camp Street), AUdaily high max25.0 C (77.0 F)0.6 C (1.1 F)30 years13 of 100 (Routine)
15 May 1911Brantford, CAdaily high min13.9 C (57.0 F)1.1 C (2.0 F)29 years13 of 100 (Routine)
15 May 1911Velikie Luki, RUdaily rain8.2 mm (0.32 in)1.1 mm (0.04 in)28 years13 of 100 (Routine)
15 May 1911Tranebjerg, DKdaily high min13.3 C (55.9 F)2.4 C (4.3 F)0 years12 of 100 (Routine)
15 May 1911Dalhousie, CAdaily high min10.6 C (51.1 F)2.3 C (4.1 F)5 years10 of 100 (Routine)
15 May 1911Dubuque River, USdaily high min19.4 C (66.9 F)0.5 C (0.9 F)16 years9 of 100 (Routine)
15 May 1911Sacramento 5 ESE, USdaily low max14.4 C (57.9 F)0.6 C (1.1 F)16 years9 of 100 (Routine)
15 May 1911Vestervig, DKdaily high min13.5 C (56.3 F)1.3 C (2.3 F)0 years7 of 100 (Routine)
15 May 1911Nordby (Fano), DKdaily high min13.8 C (56.8 F)1.4 C (2.5 F)0 years7 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

1820 to 1911
Records on 05-15 in each year Records set or tied on this calendar date in each year from 1820 to 1911. 1911 had 27 records. 05001,0001,5002,0001820: 11825: 11831: 11832: 11837: 21845: 11847: 21848: 11855: 21857: 21859: 11862: 11863: 11865: 11866: 21867: 11868: 21870: 11871: 31874: 21876: 41878: 11879: 21881: 11883: 11885: 11886: 21888: 31891: 31893: 51894: 21895: 41896: 21897: 41898: 31899: 91900: 91901: 21902: 91903: 41904: 131905: 161906: 101907: 271908: 251909: 891910: 271911: 271912: 261913: 601914: 161915: 2361916: 271917: 801918: 1331919: 251920: 581921: 921922: 301923: 1251924: 1741925: 1001926: 1611927: 1911928: 1441929: 1611930: 1361931: 4591932: 3681933: 4391934: 2271935: 2881936: 3721937: 3731938: 3931939: 3511940: 1791941: 4541942: 7011943: 5681944: 6301945: 5881946: 2381947: 3341948: 2641949: 3631950: 2601951: 7361952: 4761953: 4261954: 3551955: 5381956: 4661957: 5211958: 6051959: 7641960: 2911961: 5081962: 1,1281963: 7821964: 3471965: 3201966: 3891967: 6091968: 1,0191969: 7901970: 5121971: 3511972: 4841973: 8181974: 1,2301975: 3721976: 8031977: 1,1861978: 9221979: 4041980: 6251981: 5861982: 5001983: 1,2151984: 1,0591985: 6491986: 6791987: 1,0731988: 6431989: 5521990: 7761991: 1,1791992: 9441993: 7841994: 9101995: 1,7501996: 1,4521997: 1,1751998: 1,6411999: 8102000: 8502001: 1,2802002: 8012003: 1,0232004: 1,0462005: 7672006: 9552007: 9492008: 9952009: 6752010: 1,0882011: 1,2982012: 7512013: 1,0812014: 1,4112015: 7172016: 8902017: 4352018: 1,0742019: 6272020: 4722021: 4122022: 8472023: 5662024: 5962025: 8012026: 4811820187018981915193219491966198320002017
Records set or tied on this calendar date in each year from 1820 to 1911. 1911 had 27 records.
Counts for years before the ledger starts come from the same station rules.
Records on 05-15 in each year
YearRecords
18201
18251
18311
18321
18372
18451
18472
18481
18552
18572
18591
18621
18631
18651
18662
18671
18682
18701
18713
18742
18764
18781
18792
18811
18831
18851
18862
18883
18913
18935
18942
18954
18962
18974
18983
18999
19009
19012
19029
19034
190413
190516
190610
190727
190825
190989
191027
191127
191226
191360
191416
1915236
191627
191780
1918133
191925
192058
192192
192230
1923125
1924174
1925100
1926161
1927191
1928144
1929161
1930136
1931459
1932368
1933439
1934227
1935288
1936372
1937373
1938393
1939351
1940179
1941454
1942701
1943568
1944630
1945588
1946238
1947334
1948264
1949363
1950260
1951736
1952476
1953426
1954355
1955538
1956466
1957521
1958605
1959764
1960291
1961508
19621,128
1963782
1964347
1965320
1966389
1967609
19681,019
1969790
1970512
1971351
1972484
1973818
19741,230
1975372
1976803
19771,186
1978922
1979404
1980625
1981586
1982500
19831,215
19841,059
1985649
1986679
19871,073
1988643
1989552
1990776
19911,179
1992944
1993784
1994910
19951,750
19961,452
19971,175
19981,641
1999810
2000850
20011,280
2002801
20031,023
20041,046
2005767
2006955
2007949
2008995
2009675
20101,088
20111,298
2012751
20131,081
20141,411
2015717
2016890
2017435
20181,074
2019627
2020472
2021412
2022847
2023566
2024596
2025801
2026481

Download the Data

  • Data for records on 1911-05-15: 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).