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Weather Records on 23 April 1917

37 weather records were set or tied worldwide on 23 April 1917. Highest significance: Praha-Klementinum, CZ.

Key Facts for 23 April 1917

  • On 23 April 1917, 37 weather records were set or tied at long-record stations worldwide.
  • 2 were record highs and 16 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 37 daily.
  • Praha-Klementinum set a daily record low maximum temperature of 4.7 C (40.5 F) on 23 April 1917.
  • Across 167 earlier years (1800 to 2026) the same calendar date averaged 447 records.

Record Map

37 stations
Weather records on 23 April 1917 37 station records on 23 April 1917 are marked on the map, coloured by record type.
37 station records on 23 April 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 23 April 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
Praha-KlementinumCzech RepublicRecord low maximum temperature4.7 C (40.5 F)28 of 100 (Routine)
ChaplinCanadaRecord daily snowfall5.1 cm (2.0 in)27 of 100 (Routine)
Swift CurrentCanadaRecord daily snowfall7.6 cm (3.0 in)25 of 100 (Routine)
Katoomba (Murri St)AustraliaRecord daily precipitation64.5 mm (2.5 in)21 of 100 (Routine)
Clanwilliam (Pol)South AfricaRecord daily precipitation24.1 mm (0.9 in)20 of 100 (Routine)
Qu'appelleCanadaRecord daily snowfall5.1 cm (2.0 in)20 of 100 (Routine)
Zagreb-GricCroatiaRecord low maximum temperature6.7 C (44.1 F)20 of 100 (Routine)
Port Macquarie (Bellevue GardeAustraliaRecord daily precipitation46.0 mm (1.8 in)18 of 100 (Routine)
InnsbruckAustriaRecord low maximum temperature6.4 C (43.5 F)17 of 100 (Routine)
Gosford (Gertrude Place)AustraliaRecord daily precipitation70.4 mm (2.8 in)16 of 100 (Routine)
KremsmuensterAustriaRecord low maximum temperature3.8 C (38.8 F)16 of 100 (Routine)
Botany No.1 DamAustraliaRecord daily precipitation81.5 mm (3.2 in)15 of 100 (Routine)
SalzburgAustriaRecord low maximum temperature4.0 C (39.2 F)15 of 100 (Routine)
HohenpeissenbergGermanyRecord low maximum temperature1.0 C (33.8 F)15 of 100 (Routine)
FreiburgGermanyRecord low minimum temperature0.2 C (32.4 F)14 of 100 (Routine)
Medicine Hat ACanadaRecord daily precipitation10.2 mm (0.4 in)13 of 100 (Routine)
Medicine Hat ACanadaRecord daily snowfall10.2 cm (4.0 in)13 of 100 (Routine)
St AlbansCanadaRecord daily snowfall0.5 cm (0.2 in)13 of 100 (Routine)
Aberdeen Rd (Sar)South AfricaRecord daily precipitation10.2 mm (0.4 in)13 of 100 (Routine)
Nieu-Bethesda (Pol)South AfricaRecord daily precipitation15.7 mm (0.6 in)13 of 100 (Routine)
Campbelltown 1AustraliaRecord daily precipitation20.3 mm (0.8 in)12 of 100 (Routine)
WillowmoreSouth AfricaRecord daily precipitation14.7 mm (0.6 in)12 of 100 (Routine)
SonnblickAustriaRecord low maximum temperature-14.4 C (6.1 F)11 of 100 (Routine)
Epping Chester StreetAustraliaRecord daily precipitation57.2 mm (2.3 in)10 of 100 (Routine)
Singleton Post OfficeAustraliaRecord daily precipitation29.0 mm (1.1 in)9 of 100 (Routine)
Munchen-NymphenburgGermanyRecord low maximum temperature4.0 C (39.2 F)9 of 100 (Routine)
SaentisSwitzerlandRecord low minimum temperature-13.6 C (7.5 F)9 of 100 (Routine)
ArnsbergGermanyRecord low minimum temperature-2.1 C (28.2 F)8 of 100 (Routine)
Zagreb-GricCroatiaRecord low minimum temperature3.6 C (38.5 F)7 of 100 (Routine)
Richmond C/K (Tnk)South AfricaRecord daily precipitation27.9 mm (1.1 in)7 of 100 (Routine)
NurnbergGermanyRecord low maximum temperature5.9 C (42.6 F)6 of 100 (Routine)
Blue Hill CoopUnited StatesRecord high minimum temperature9.4 C (48.9 F)6 of 100 (Routine)
BambergGermanyRecord low maximum temperature7.1 C (44.8 F)3 of 100 (Routine)
HvarCroatiaRecord low maximum temperature14.0 C (57.2 F)2 of 100 (Routine)
Atlantic City MarinaUnited StatesRecord high minimum temperature11.1 C (52.0 F)2 of 100 (Routine)
AltonCanadaRecord daily snowfall1.3 cm (0.5 in)1 of 100 (Routine)
Algiers-Ville/UniversiteAlgeriaRecord low maximum temperature16.0 C (60.8 F)0 of 100 (Routine)

Counts by Type and Timescale

37 records
Records on 23 April 1917 by type Records set or tied on 23 April 1917 by type: Lowest daily maximum 12, Highest daily minimum 2, Lowest daily minimum 4, Heaviest daily rainfall 13, Heaviest daily snowfall 6. 051015Highest daily maximum: 0Lowest daily maximum: 12Highest daily minimum: 2Lowest daily minimum: 4Heaviest daily rainfall: 13Heaviest daily snowfall: 6Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 23 April 1917 by type: Lowest daily maximum 12, Highest daily minimum 2, Lowest daily minimum 4, Heaviest daily rainfall 13, Heaviest daily snowfall 6.
Records on 23 April 1917 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum12
Highest daily minimum2
Lowest daily minimum4
Heaviest daily rainfall13
Heaviest daily snowfall6
Deepest snow cover0
Records on 23 April 1917 by timescale Records on 23 April 1917 by timescale: all-time 0, monthly 0, daily 37. 010203040all-time: 0monthly: 0daily: 37all-timemonthlydaily
Records on 23 April 1917 by timescale: all-time 0, monthly 0, daily 37.
Records on 23 April 1917 by timescale
TimescaleRecords
all-time0
monthly0
daily37

How Much Records Were Beaten By

33 broken records
Histogram of margins by which records were beaten on 23 April 1917 Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.0. Ties are not counted. 01020300 to 10: 2410 to 20: 420 to 30: 130 to 40: 140 to 50: 050 to 60: 30 to 1010 to 2020 to 3030 to 4040 to 5050 to 60
Margins by which the 33 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 56.0. Ties are not counted.
Histogram of margins by which records were beaten on 23 April 1917
MarginRecords
0 to 1024
10 to 204
20 to 301
30 to 401
40 to 500
50 to 603

Top 20 by Significance

23 April 1917
Top 20 records on 23 April 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
23 April 1917Praha-Klementinum, CZdaily low max4.7 C (40.5 F)0.1 C (0.2 F)61 years28 of 100 (Routine)
23 April 1917Chaplin, CAdaily snowfall5.1 cm (2.0 in)5.1 cm (2.0 in)32 years27 of 100 (Routine)
23 April 1917Swift Current, CAdaily snowfall7.6 cm (3.0 in)5.6 cm (2.2 in)12 years25 of 100 (Routine)
23 April 1917Katoomba (Murri St), AUdaily rain64.5 mm (2.5 in)31.5 mm (1.2 in)19 years21 of 100 (Routine)
23 April 1917Clanwilliam (Pol), ZAdaily rain24.1 mm (0.9 in)10.4 mm (0.4 in)8 years20 of 100 (Routine)
23 April 1917Qu'appelle, CAdaily snowfall5.1 cm (2.0 in)5.1 cm (2.0 in)32 years20 of 100 (Routine)
23 April 1917Zagreb-Gric, HRdaily low max6.7 C (44.1 F)5.1 C (9.2 F)20 years20 of 100 (Routine)
23 April 1917Port Macquarie (Bellevue Garde, AUdaily rain46.0 mm (1.8 in)22.4 mm (0.9 in)4 years18 of 100 (Routine)
23 April 1917Innsbruck, ATdaily low max6.4 C (43.5 F)1.6 C (2.9 F)35 years17 of 100 (Routine)
23 April 1917Gosford (Gertrude Place), AUdaily rain70.4 mm (2.8 in)16.0 mm (0.6 in)19 years16 of 100 (Routine)
23 April 1917Kremsmuenster, ATdaily low max3.8 C (38.8 F)1.5 C (2.7 F)35 years16 of 100 (Routine)
23 April 1917Botany No.1 Dam, AUdaily rain81.5 mm (3.2 in)11.6 mm (0.5 in)19 years15 of 100 (Routine)
23 April 1917Salzburg, ATdaily low max4.0 C (39.2 F)1.0 C (1.8 F)35 years15 of 100 (Routine)
23 April 1917Hohenpeissenberg, DEdaily low max1.0 C (33.8 F)1.4 C (2.5 F)35 years15 of 100 (Routine)
23 April 1917Freiburg, DEdaily low min0.2 C (32.4 F)0.6 C (1.1 F)33 years14 of 100 (Routine)
23 April 1917Medicine Hat A, CAdaily rain10.2 mm (0.4 in)1.3 mm (0.05 in)23 years13 of 100 (Routine)
23 April 1917Medicine Hat A, CAdaily snowfall10.2 cm (4.0 in)1.3 cm (0.5 in)23 years13 of 100 (Routine)
23 April 1917St Albans, CAdaily snowfall0.5 cm (0.2 in)0.5 cm (0.2 in)31 years13 of 100 (Routine)
23 April 1917Aberdeen Rd (Sar), ZAdaily rain10.2 mm (0.4 in)6.1 mm (0.24 in)10 years13 of 100 (Routine)
23 April 1917Nieu-Bethesda (Pol), ZAdaily rain15.7 mm (0.6 in)1.5 mm (0.06 in)27 years13 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

1800 to 1917
Records on 04-23 in each year Records set or tied on this calendar date in each year from 1800 to 1917. 1917 had 37 records. 05001,0001,5002,0001800: 11809: 11812: 11817: 31838: 11840: 11842: 11851: 11852: 21854: 11855: 51857: 21859: 11861: 11865: 11868: 21870: 11872: 11873: 41874: 41875: 11877: 11878: 11879: 11881: 21882: 11883: 21884: 31885: 41886: 41888: 11889: 11890: 41891: 21892: 11893: 21895: 31896: 41897: 21898: 11899: 61900: 41901: 91902: 121903: 201904: 81905: 71906: 231907: 121908: 141909: 281910: 351911: 211912: 291913: 401914: 711915: 411916: 351917: 371918: 921919: 661920: 751921: 811922: 451923: 1321924: 1111925: 5061926: 1241927: 5621928: 3021929: 1031930: 4871931: 5061932: 2311933: 3611934: 2721935: 1521936: 3421937: 3211938: 1771939: 3391940: 3191941: 2771942: 4731943: 8191944: 6781945: 3641946: 6491947: 2421948: 4011949: 4011950: 5771951: 4261952: 5001953: 3001954: 5481955: 6541956: 5811957: 6231958: 6491959: 4421960: 1,6481961: 8841962: 3891963: 8011964: 9581965: 6601966: 3861967: 1,1831968: 8161969: 7051970: 1,2091971: 5081972: 3321973: 5181974: 4861975: 4111976: 3861977: 9791978: 5231979: 5541980: 1,4601981: 1,1241982: 1,1911983: 1,0311984: 9711985: 1,0111986: 1,5411987: 6761988: 1,0511989: 1,4691990: 1,0771991: 6381992: 5921993: 1,2561994: 6661995: 1,4641996: 1,5201997: 1,0241998: 1,4461999: 1,1982000: 1,0032001: 1,4352002: 9712003: 5572004: 6102005: 9402006: 8392007: 8472008: 7752009: 9202010: 1,0402011: 1,1902012: 1,7962013: 1,6552014: 3622015: 5112016: 5422017: 4742018: 6842019: 6682020: 5642021: 5622022: 6922023: 9802024: 5832025: 4102026: 5031800187218921910192719441961197819952012
Records set or tied on this calendar date in each year from 1800 to 1917. 1917 had 37 records.
Counts for years before the ledger starts come from the same station rules.
Records on 04-23 in each year
YearRecords
18001
18091
18121
18173
18381
18401
18421
18511
18522
18541
18555
18572
18591
18611
18651
18682
18701
18721
18734
18744
18751
18771
18781
18791
18812
18821
18832
18843
18854
18864
18881
18891
18904
18912
18921
18932
18953
18964
18972
18981
18996
19004
19019
190212
190320
19048
19057
190623
190712
190814
190928
191035
191121
191229
191340
191471
191541
191635
191737
191892
191966
192075
192181
192245
1923132
1924111
1925506
1926124
1927562
1928302
1929103
1930487
1931506
1932231
1933361
1934272
1935152
1936342
1937321
1938177
1939339
1940319
1941277
1942473
1943819
1944678
1945364
1946649
1947242
1948401
1949401
1950577
1951426
1952500
1953300
1954548
1955654
1956581
1957623
1958649
1959442
19601,648
1961884
1962389
1963801
1964958
1965660
1966386
19671,183
1968816
1969705
19701,209
1971508
1972332
1973518
1974486
1975411
1976386
1977979
1978523
1979554
19801,460
19811,124
19821,191
19831,031
1984971
19851,011
19861,541
1987676
19881,051
19891,469
19901,077
1991638
1992592
19931,256
1994666
19951,464
19961,520
19971,024
19981,446
19991,198
20001,003
20011,435
2002971
2003557
2004610
2005940
2006839
2007847
2008775
2009920
20101,040
20111,190
20121,796
20131,655
2014362
2015511
2016542
2017474
2018684
2019668
2020564
2021562
2022692
2023980
2024583
2025410
2026503

Download the Data

  • Data for records on 1917-04-23: 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).