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

Weather Records on 9 January 1858

2 weather records were set or tied worldwide on 9 January 1858. Highest significance: Bologna, IT.

Key Facts for 9 January 1858

  • On 9 January 1858, 2 weather records were set or tied at long-record stations worldwide.
  • 0 were record highs and 2 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 2 daily.
  • Bologna set a daily record low minimum temperature of -8.9 C (16.0 F) on 9 January 1858.
  • Across 166 earlier years (1799 to 2025) the same calendar date averaged 507 records.

Record Map

2 stations
Weather records on 9 January 1858 2 station records on 9 January 1858 are marked on the map, coloured by record type.
2 station records on 9 January 1858 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 9 January 1858: highest significance records shown on the map
StationCountryTypeValueSignificance
BolognaItalyRecord low minimum temperature-8.9 C (16.0 F)23 of 100 (Routine)
MilanItalyRecord low minimum temperature-14.0 C (6.8 F)22 of 100 (Routine)

Counts by Type and Timescale

2 records
Records on 9 January 1858 by type Records set or tied on 9 January 1858 by type: Lowest daily minimum 2. 01122Highest daily maximum: 0Lowest daily maximum: 0Highest daily minimum: 0Lowest daily minimum: 2Heaviest daily rainfall: 0Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 9 January 1858 by type: Lowest daily minimum 2.
Records on 9 January 1858 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum0
Highest daily minimum0
Lowest daily minimum2
Heaviest daily rainfall0
Heaviest daily snowfall0
Deepest snow cover0
Records on 9 January 1858 by timescale Records on 9 January 1858 by timescale: all-time 0, monthly 0, daily 2. 01122all-time: 0monthly: 0daily: 2all-timemonthlydaily
Records on 9 January 1858 by timescale: all-time 0, monthly 0, daily 2.
Records on 9 January 1858 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 9 January 1858 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 3.4. Ties are not counted. 001110.0 to 0.5: 00.5 to 1.0: 01.0 to 1.5: 01.5 to 2.0: 02.0 to 2.5: 02.5 to 3.0: 13.0 to 3.5: 10.0 to 0.50.5 to 1.01.0 to 1.51.5 to 2.02.0 to 2.52.5 to 3.03.0 to 3.5
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 3.4. Ties are not counted.
Histogram of margins by which records were beaten on 9 January 1858
MarginRecords
0.0 to 0.50
0.5 to 1.00
1.0 to 1.50
1.5 to 2.00
2.0 to 2.50
2.5 to 3.01
3.0 to 3.51

Top 20 by Significance

9 January 1858
Top 2 records on 9 January 1858 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
9 January 1858Bologna, ITdaily low min-8.9 C (16.0 F)2.6 C (4.7 F)39 years23 of 100 (Routine)
9 January 1858Milan, ITdaily low min-14.0 C (6.8 F)3.4 C (6.1 F)16 years22 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

1799 to 1858
Records on 01-09 in each year Records set or tied on this calendar date in each year from 1799 to 1858. 1858 had 2 records. 05001,0001,5002,0001799: 21806: 11830: 11842: 11849: 11851: 11853: 21855: 11857: 21858: 21861: 21862: 21866: 11867: 21869: 11870: 31871: 11872: 11873: 31874: 11875: 11876: 41877: 31879: 21881: 31882: 11884: 41886: 21887: 41888: 31889: 11890: 41891: 21892: 11893: 21894: 11895: 101896: 11897: 61898: 31899: 31900: 41901: 41902: 51903: 71904: 111905: 121906: 131907: 101908: 131909: 91910: 141911: 161912: 641913: 81914: 301915: 291916: 561917: 511918: 761919: 361920: 661921: 711922: 921923: 831924: 1611925: 841926: 1441927: 1201928: 3871929: 2081930: 9191931: 661932: 2051933: 2871934: 4461935: 7831936: 5771937: 1,6371938: 2501939: 1,0911940: 6231941: 4311942: 9481943: 3421944: 4421945: 5431946: 6231947: 1781948: 2781949: 1,0351950: 4071951: 2611952: 3101953: 1,1481954: 2981955: 2061956: 4161957: 1,4391958: 6611959: 3551960: 5751961: 1401962: 1,3341963: 6901964: 8571965: 6731966: 2891967: 4091968: 1,4611969: 5691970: 1,8331971: 6591972: 6171973: 1,3801974: 1,3921975: 1,0551976: 7921977: 1,6311978: 1,4941979: 8911980: 7941981: 6351982: 1,1621983: 7591984: 5381985: 1,5411986: 6851987: 1,2431988: 1,2471989: 1,4601990: 1,3351991: 1,0481992: 1,3681993: 1,5241994: 8521995: 1,0991996: 1,6321997: 1,4401998: 1,7351999: 9472000: 6772001: 8292002: 1,8892003: 1,1862004: 7172005: 1,1352006: 8722007: 1,6072008: 1,3352009: 8252010: 1,9412011: 8022012: 6042013: 6412014: 6942015: 8682016: 6162017: 9432018: 7412019: 3212020: 4712021: 4052022: 3522023: 5192024: 1,5332025: 7451799187218931910192719441961197819952012
Records set or tied on this calendar date in each year from 1799 to 1858. 1858 had 2 records.
Counts for years before the ledger starts come from the same station rules.
Records on 01-09 in each year
YearRecords
17992
18061
18301
18421
18491
18511
18532
18551
18572
18582
18612
18622
18661
18672
18691
18703
18711
18721
18733
18741
18751
18764
18773
18792
18813
18821
18844
18862
18874
18883
18891
18904
18912
18921
18932
18941
189510
18961
18976
18983
18993
19004
19014
19025
19037
190411
190512
190613
190710
190813
19099
191014
191116
191264
19138
191430
191529
191656
191751
191876
191936
192066
192171
192292
192383
1924161
192584
1926144
1927120
1928387
1929208
1930919
193166
1932205
1933287
1934446
1935783
1936577
19371,637
1938250
19391,091
1940623
1941431
1942948
1943342
1944442
1945543
1946623
1947178
1948278
19491,035
1950407
1951261
1952310
19531,148
1954298
1955206
1956416
19571,439
1958661
1959355
1960575
1961140
19621,334
1963690
1964857
1965673
1966289
1967409
19681,461
1969569
19701,833
1971659
1972617
19731,380
19741,392
19751,055
1976792
19771,631
19781,494
1979891
1980794
1981635
19821,162
1983759
1984538
19851,541
1986685
19871,243
19881,247
19891,460
19901,335
19911,048
19921,368
19931,524
1994852
19951,099
19961,632
19971,440
19981,735
1999947
2000677
2001829
20021,889
20031,186
2004717
20051,135
2006872
20071,607
20081,335
2009825
20101,941
2011802
2012604
2013641
2014694
2015868
2016616
2017943
2018741
2019321
2020471
2021405
2022352
2023519
20241,533
2025745

Download the Data

  • Data for records on 1858-01-09: 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).