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Built 2026-10-19 (19 October 2026)

Weather Records on 17 April 1909

7 weather records were set or tied worldwide on 17 April 1909. Highest significance: Woodstock, CA.

Key Facts for 17 April 1909

  • On 17 April 1909, 7 weather records were set or tied at long-record stations worldwide.
  • 3 were record highs and 1 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 7 daily.
  • Woodstock set a daily record precipitation of 27.9 mm (1.1 in) on 17 April 1909.
  • Across 166 earlier years (1799 to 2026) the same calendar date averaged 455 records.

Record Map

7 stations
Weather records on 17 April 1909 7 station records on 17 April 1909 are marked on the map, coloured by record type.
7 station records on 17 April 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 April 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
WoodstockCanadaRecord daily precipitation27.9 mm (1.1 in)29 of 100 (Routine)
MilanItalyRecord high maximum temperature26.0 C (78.8 F)23 of 100 (Routine)
Olympia Priest Pt ParkUnited StatesRecord low minimum temperature-2.8 C (27.0 F)11 of 100 (Routine)
Augsburg (Sankt Stephan)GermanyRecord high maximum temperature21.0 C (69.8 F)7 of 100 (Routine)
BuffaloUnited StatesRecord daily precipitation7.9 mm (0.31 in)7 of 100 (Routine)
Oran-Hopital MilitaireAlgeriaRecord high maximum temperature23.0 C (73.4 F)1 of 100 (Routine)
Goderich LighthouseCanadaRecord daily precipitation12.7 mm (0.5 in)1 of 100 (Routine)

Counts by Type and Timescale

7 records
Records on 17 April 1909 by type Records set or tied on 17 April 1909 by type: Highest daily maximum 3, Lowest daily minimum 1, Heaviest daily rainfall 3. 0123Highest daily maximum: 3Lowest daily maximum: 0Highest daily minimum: 0Lowest daily minimum: 1Heaviest daily rainfall: 3Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 April 1909 by type: Highest daily maximum 3, Lowest daily minimum 1, Heaviest daily rainfall 3.
Records on 17 April 1909 by type
Record typeRecords
Highest daily maximum3
Lowest daily maximum0
Highest daily minimum0
Lowest daily minimum1
Heaviest daily rainfall3
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 April 1909 by timescale Records on 17 April 1909 by timescale: all-time 0, monthly 0, daily 7. 02468all-time: 0monthly: 0daily: 7all-timemonthlydaily
Records on 17 April 1909 by timescale: all-time 0, monthly 0, daily 7.
Records on 17 April 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily7

How Much Records Were Beaten By

5 broken records
Histogram of margins by which records were beaten on 17 April 1909 Margins by which the 5 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 14.9. Ties are not counted. 012340 to 2: 42 to 4: 04 to 6: 06 to 8: 08 to 10: 010 to 12: 012 to 14: 014 to 16: 10 to 22 to 44 to 66 to 88 to 1010 to 1212 to 1414 to 16
Margins by which the 5 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 14.9. Ties are not counted.
Histogram of margins by which records were beaten on 17 April 1909
MarginRecords
0 to 24
2 to 40
4 to 60
6 to 80
8 to 100
10 to 120
12 to 140
14 to 161

Top 20 by Significance

17 April 1909
Top 7 records on 17 April 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 April 1909Woodstock, CAdaily rain27.9 mm (1.1 in)14.9 mm (0.6 in)8 years29 of 100 (Routine)
17 April 1909Milan, ITdaily high max26.0 C (78.8 F)0.3 C (0.5 F)43 years23 of 100 (Routine)
17 April 1909Olympia Priest Pt Park, USdaily low min-2.8 C (27.0 F)1.7 C (3.1 F)12 years11 of 100 (Routine)
17 April 1909Augsburg (Sankt Stephan), DEdaily high max21.0 C (69.8 F)0.1 C (0.2 F)13 years7 of 100 (Routine)
17 April 1909Buffalo, USdaily rain7.9 mm (0.31 in)1.5 mm (0.06 in)8 years7 of 100 (Routine)
17 April 1909Oran-Hopital Militaire, DZdaily high max (Tie)23.0 C (73.4 F)tie7 years1 of 100 (Routine)
17 April 1909Goderich Lighthouse, CAdaily rain (Tie)12.7 mm (0.5 in)tie12 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

1799 to 1909
Records on 04-17 in each year Records set or tied on this calendar date in each year from 1799 to 1909. 1909 had 7 records. 01,0002,0003,0001799: 11807: 11808: 11815: 11817: 11818: 11819: 11823: 11825: 11830: 11835: 31837: 11845: 11847: 21851: 11852: 31853: 11854: 11855: 11857: 11858: 11862: 11865: 21868: 11873: 41874: 11875: 31877: 41878: 21880: 21889: 11890: 21891: 21892: 41894: 51895: 11896: 51897: 61898: 31899: 11900: 21901: 41902: 41903: 51904: 191905: 111906: 141907: 161908: 381909: 71910: 291911: 331912: 271913: 201914: 831915: 301916: 301917: 321918: 351919: 391920: 871921: 1481922: 961923: 711924: 741925: 1031926: 1401927: 2561928: 3081929: 1451930: 2381931: 2161932: 6151933: 2611934: 2341935: 3741936: 3081937: 4391938: 5641939: 6181940: 3371941: 4601942: 4151943: 2851944: 3341945: 4751946: 4921947: 4611948: 6221949: 4391950: 2931951: 4411952: 5291953: 8181954: 6501955: 3941956: 4861957: 2771958: 7021959: 4341960: 5531961: 6671962: 5971963: 7021964: 7661965: 4111966: 4091967: 9351968: 7451969: 7281970: 5471971: 9241972: 5461973: 5891974: 2441975: 6661976: 1,6301977: 9061978: 6201979: 8101980: 6751981: 6211982: 9651983: 1,3651984: 7201985: 9171986: 9971987: 9601988: 1,0821989: 6381990: 1,0651991: 6141992: 1,1051993: 8471994: 1,0471995: 1,2111996: 1,0441997: 8891998: 1,7951999: 1,7302000: 1,0822001: 1,0132002: 2,2842003: 1,0372004: 7612005: 5722006: 1,4302007: 8632008: 8422009: 7792010: 6062011: 9822012: 9202013: 1,7962014: 9132015: 8132016: 9772017: 4692018: 1,5852019: 4582020: 1,1652021: 7012022: 8312023: 6282024: 6902025: 1,0582026: 8381799185418941911192819451962197919962013
Records set or tied on this calendar date in each year from 1799 to 1909. 1909 had 7 records.
Counts for years before the ledger starts come from the same station rules.
Records on 04-17 in each year
YearRecords
17991
18071
18081
18151
18171
18181
18191
18231
18251
18301
18353
18371
18451
18472
18511
18523
18531
18541
18551
18571
18581
18621
18652
18681
18734
18741
18753
18774
18782
18802
18891
18902
18912
18924
18945
18951
18965
18976
18983
18991
19002
19014
19024
19035
190419
190511
190614
190716
190838
19097
191029
191133
191227
191320
191483
191530
191630
191732
191835
191939
192087
1921148
192296
192371
192474
1925103
1926140
1927256
1928308
1929145
1930238
1931216
1932615
1933261
1934234
1935374
1936308
1937439
1938564
1939618
1940337
1941460
1942415
1943285
1944334
1945475
1946492
1947461
1948622
1949439
1950293
1951441
1952529
1953818
1954650
1955394
1956486
1957277
1958702
1959434
1960553
1961667
1962597
1963702
1964766
1965411
1966409
1967935
1968745
1969728
1970547
1971924
1972546
1973589
1974244
1975666
19761,630
1977906
1978620
1979810
1980675
1981621
1982965
19831,365
1984720
1985917
1986997
1987960
19881,082
1989638
19901,065
1991614
19921,105
1993847
19941,047
19951,211
19961,044
1997889
19981,795
19991,730
20001,082
20011,013
20022,284
20031,037
2004761
2005572
20061,430
2007863
2008842
2009779
2010606
2011982
2012920
20131,796
2014913
2015813
2016977
2017469
20181,585
2019458
20201,165
2021701
2022831
2023628
2024690
20251,058
2026838

Download the Data

  • Data for records on 1909-04-17: 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).