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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Weather Records on 15 April 1855

2 weather records were set or tied worldwide on 15 April 1855. Highest significance: Milan, IT.

Key Facts for 15 April 1855

  • On 15 April 1855, 2 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 0 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 2 daily.
  • Milan set a daily record high maximum temperature of 23.9 C (75.0 F) on 15 April 1855.
  • Across 158 earlier years (1801 to 2025) the same calendar date averaged 492 records.

Record Map

2 stations
Weather records on 15 April 1855 2 station records on 15 April 1855 are marked on the map, coloured by record type.
2 station records on 15 April 1855 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 15 April 1855: highest significance records shown on the map
StationCountryTypeValueSignificance
MilanItalyRecord high maximum temperature23.9 C (75.0 F)14 of 100 (Routine)
OxfordUnited KingdomRecord high maximum temperature18.9 C (66.0 F)11 of 100 (Routine)

Counts by Type and Timescale

2 records
Records on 15 April 1855 by type Records set or tied on 15 April 1855 by type: Highest daily maximum 2. 01122Highest daily maximum: 2Lowest daily maximum: 0Highest daily minimum: 0Lowest daily minimum: 0Heaviest daily rainfall: 0Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 15 April 1855 by type: Highest daily maximum 2.
Records on 15 April 1855 by type
Record typeRecords
Highest daily maximum2
Lowest daily maximum0
Highest daily minimum0
Lowest daily minimum0
Heaviest daily rainfall0
Heaviest daily snowfall0
Deepest snow cover0
Records on 15 April 1855 by timescale Records on 15 April 1855 by timescale: all-time 0, monthly 0, daily 2. 01122all-time: 0monthly: 0daily: 2all-timemonthlydaily
Records on 15 April 1855 by timescale: all-time 0, monthly 0, daily 2.
Records on 15 April 1855 by timescale
TimescaleRecords
all-time0
monthly0
daily2

How Much Records Were Beaten By

2 broken records
Histogram of margins by which records were beaten on 15 April 1855 Margins by which the 2 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1.7. Ties are not counted. 001110.0 to 0.3: 00.3 to 0.5: 00.5 to 0.8: 00.8 to 1.0: 11.0 to 1.3: 01.3 to 1.5: 01.5 to 1.8: 10.0 to 0.30.3 to 0.50.5 to 0.80.8 to 1.01.0 to 1.31.3 to 1.51.5 to 1.8
Margins by which the 2 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1.7. Ties are not counted.
Histogram of margins by which records were beaten on 15 April 1855
MarginRecords
0.0 to 0.30
0.3 to 0.50
0.5 to 0.80
0.8 to 1.01
1.0 to 1.30
1.3 to 1.50
1.5 to 1.81

Top 20 by Significance

15 April 1855
Top 2 records on 15 April 1855 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
15 April 1855Milan, ITdaily high max23.9 C (75.0 F)0.9 C (1.6 F)10 years14 of 100 (Routine)
15 April 1855Oxford, GBdaily high max18.9 C (66.0 F)1.7 C (3.1 F)10 years11 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

1801 to 1855
Records on 04-15 in each year Records set or tied on this calendar date in each year from 1801 to 1855. 1855 had 2 records. 05001,0001,5002,0001801: 11817: 11820: 11844: 11845: 11847: 11849: 11853: 21855: 21858: 11862: 31865: 31866: 11868: 11869: 21873: 11874: 11876: 11880: 11882: 11885: 31886: 11887: 31889: 21890: 31891: 21892: 81893: 21894: 11896: 21897: 11898: 21899: 41900: 91901: 21902: 41903: 81904: 391905: 111906: 201907: 181908: 151909: 181910: 161911: 201912: 241913: 391914: 171915: 131916: 151917: 351918: 401919: 221920: 501921: 591922: 941923: 1781924: 1721925: 1681926: 4531927: 3211928: 6311929: 911930: 2891931: 3881932: 1501933: 3001934: 3391935: 5151936: 4391937: 2771938: 5961939: 7891940: 5811941: 6281942: 5251943: 1,0371944: 3131945: 7831946: 2451947: 5321948: 3061949: 4191950: 5681951: 5041952: 3571953: 4751954: 8961955: 4841956: 7501957: 3781958: 4581959: 3141960: 3191961: 8771962: 7331963: 7141964: 3821965: 5041966: 4641967: 5991968: 4761969: 5551970: 8411971: 6401972: 8961973: 6671974: 3851975: 7801976: 1,5661977: 6491978: 4261979: 3701980: 1,0661981: 7241982: 9551983: 1,3431984: 6121985: 7881986: 1,1401987: 5791988: 8391989: 8361990: 8371991: 7691992: 7831993: 1,1561994: 8351995: 8051996: 1,1731997: 1,0311998: 1,7521999: 1,2492000: 1,1632001: 1,0432002: 1,8662003: 1,7602004: 7612005: 5832006: 1,6372007: 1,7762008: 1,1572009: 8532010: 8042011: 1,1622012: 1,0072013: 1,1462014: 1,7212015: 7392016: 6022017: 4742018: 1,9092019: 6052020: 1,0652021: 4932022: 1,1412023: 9092024: 1,0952025: 8591801187418991915193119471963197919952011
Records set or tied on this calendar date in each year from 1801 to 1855. 1855 had 2 records.
Counts for years before the ledger starts come from the same station rules.
Records on 04-15 in each year
YearRecords
18011
18171
18201
18441
18451
18471
18491
18532
18552
18581
18623
18653
18661
18681
18692
18731
18741
18761
18801
18821
18853
18861
18873
18892
18903
18912
18928
18932
18941
18962
18971
18982
18994
19009
19012
19024
19038
190439
190511
190620
190718
190815
190918
191016
191120
191224
191339
191417
191513
191615
191735
191840
191922
192050
192159
192294
1923178
1924172
1925168
1926453
1927321
1928631
192991
1930289
1931388
1932150
1933300
1934339
1935515
1936439
1937277
1938596
1939789
1940581
1941628
1942525
19431,037
1944313
1945783
1946245
1947532
1948306
1949419
1950568
1951504
1952357
1953475
1954896
1955484
1956750
1957378
1958458
1959314
1960319
1961877
1962733
1963714
1964382
1965504
1966464
1967599
1968476
1969555
1970841
1971640
1972896
1973667
1974385
1975780
19761,566
1977649
1978426
1979370
19801,066
1981724
1982955
19831,343
1984612
1985788
19861,140
1987579
1988839
1989836
1990837
1991769
1992783
19931,156
1994835
1995805
19961,173
19971,031
19981,752
19991,249
20001,163
20011,043
20021,866
20031,760
2004761
2005583
20061,637
20071,776
20081,157
2009853
2010804
20111,162
20121,007
20131,146
20141,721
2015739
2016602
2017474
20181,909
2019605
20201,065
2021493
20221,141
2023909
20241,095
2025859

Download the Data

  • Data for records on 1855-04-15: 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 2026-10-18 (18 October 2026). Records are computed by this site and are not official.

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