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Built 2026-10-19 (19 October 2026)

Weather Records on 17 May 1921

50 weather records were set or tied worldwide on 17 May 1921. Highest significance: Hillgrove (Hillview), AU.

Key Facts for 17 May 1921

  • On 17 May 1921, 50 weather records were set or tied at long-record stations worldwide.
  • 11 were record highs and 9 were record lows, counting maximum and minimum temperature.
  • By timescale, 1 were all-time records, 0 monthly and 49 daily.
  • Hillgrove (Hillview) set an all-time record daily precipitation of 172.7 mm (6.8 in) on 17 May 1921.
  • Across 167 earlier years (1802 to 2026) the same calendar date averaged 437 records.

Record Map

50 stations
Weather records on 17 May 1921 50 station records on 17 May 1921 are marked on the map, coloured by record type.
50 station records on 17 May 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 17 May 1921: highest significance records shown on the map
StationCountryTypeValueSignificance
Hillgrove (Hillview)AustraliaRecord daily precipitation172.7 mm (6.8 in)65 of 100 (Major)
ArhangelskRussiaRecord daily precipitation38.5 mm (1.5 in)50 of 100 (Notable)
Katoomba (Murri St)AustraliaRecord daily precipitation50.0 mm (2.0 in)22 of 100 (Routine)
Camden 3 WUnited StatesRecord daily precipitation14.7 mm (0.6 in)20 of 100 (Routine)
Burra (Poonunda)AustraliaRecord daily precipitation19.1 mm (0.8 in)20 of 100 (Routine)
WhiteheadCanadaRecord daily precipitation24.9 mm (1.0 in)20 of 100 (Routine)
BoorolongAustraliaRecord daily precipitation33.0 mm (1.3 in)20 of 100 (Routine)
Bungonia (Inverary Park)AustraliaRecord daily precipitation20.8 mm (0.8 in)19 of 100 (Routine)
Maitland WestAustraliaRecord daily precipitation19.1 mm (0.8 in)18 of 100 (Routine)
Newcastle Nobbys Signal StatioAustraliaRecord daily precipitation40.6 mm (1.6 in)17 of 100 (Routine)
Gloucester Post OfficeAustraliaRecord daily precipitation25.4 mm (1.0 in)16 of 100 (Routine)
Mount Victoria (Mt Victoria (SAustraliaRecord daily precipitation43.2 mm (1.7 in)16 of 100 (Routine)
Lithgow (Birdwood St)AustraliaRecord daily precipitation36.6 mm (1.4 in)16 of 100 (Routine)
Lithgow (Cooerwull)AustraliaRecord daily precipitation26.4 mm (1.0 in)16 of 100 (Routine)
Wyong (Wyong Golf Club)AustraliaRecord daily precipitation27.4 mm (1.1 in)15 of 100 (Routine)
Ebor (Kotupna)AustraliaRecord daily precipitation22.1 mm (0.9 in)14 of 100 (Routine)
Branxton (Dalwood Vineyard)AustraliaRecord daily precipitation15.7 mm (0.6 in)14 of 100 (Routine)
Singleton Post OfficeAustraliaRecord daily precipitation12.4 mm (0.5 in)14 of 100 (Routine)
Stroud Post OfficeAustraliaRecord daily precipitation16.3 mm (0.6 in)14 of 100 (Routine)
Bellbrook (East Street)AustraliaRecord daily precipitation20.3 mm (0.8 in)13 of 100 (Routine)
SandvigDenmarkRecord high minimum temperature10.5 C (50.9 F)13 of 100 (Routine)
TobolskRussiaRecord low minimum temperature-4.5 C (23.9 F)13 of 100 (Routine)
JonkopingSwedenRecord high minimum temperature8.0 C (46.4 F)13 of 100 (Routine)
Robe ComparisonAustraliaRecord high maximum temperature20.2 C (68.4 F)12 of 100 (Routine)
Gosford (Gertrude Place)AustraliaRecord daily precipitation24.6 mm (1.0 in)12 of 100 (Routine)
Burwood 1AustraliaRecord daily precipitation23.4 mm (0.9 in)12 of 100 (Routine)
Emu PlainsAustraliaRecord daily precipitation18.0 mm (0.7 in)12 of 100 (Routine)
Berry Masonic VillageAustraliaRecord daily precipitation70.1 mm (2.8 in)12 of 100 (Routine)
ColdwaterCanadaRecord low minimum temperature-5.0 C (23.0 F)12 of 100 (Routine)
PeterboroughCanadaRecord low minimum temperature-2.2 C (28.0 F)12 of 100 (Routine)
Adelaide West TerraceAustraliaRecord high minimum temperature16.8 C (62.2 F)11 of 100 (Routine)
Moss Vale (Hoskins Street)AustraliaRecord daily precipitation16.3 mm (0.6 in)11 of 100 (Routine)
Bogoroditskoye-FeninoRussiaRecord high minimum temperature16.0 C (60.8 F)11 of 100 (Routine)
Prospect ReservoirAustraliaRecord daily precipitation18.0 mm (0.7 in)10 of 100 (Routine)
SchwerinGermanyRecord high maximum temperature28.3 C (82.9 F)10 of 100 (Routine)
Jerrys Plains Post OfficeAustraliaRecord daily precipitation16.5 mm (0.6 in)9 of 100 (Routine)
Hornsby Junction (Thornleigh)AustraliaRecord daily precipitation32.0 mm (1.3 in)8 of 100 (Routine)
Haliburton ACanadaRecord low minimum temperature-3.9 C (25.0 F)8 of 100 (Routine)
WarenGermanyRecord high maximum temperature26.5 C (79.7 F)8 of 100 (Routine)
InnsbruckAustriaRecord high maximum temperature28.1 C (82.6 F)7 of 100 (Routine)
Troicko-PecherskoeRussiaRecord daily precipitation13.3 mm (0.5 in)7 of 100 (Routine)
Tempe DownsAustraliaRecord daily precipitation12.2 mm (0.5 in)6 of 100 (Routine)
Emerald Post OfficeAustraliaRecord high maximum temperature31.2 C (88.2 F)6 of 100 (Routine)
BatesvilleUnited StatesRecord low minimum temperature5.6 C (42.1 F)6 of 100 (Routine)
EnisejskRussiaRecord low minimum temperature-4.8 C (23.4 F)5 of 100 (Routine)
St John'sCanadaRecord high minimum temperature11.1 C (52.0 F)3 of 100 (Routine)
San Diego WboUnited StatesRecord low maximum temperature16.1 C (61.0 F)3 of 100 (Routine)
NorthfieldUnited StatesRecord low minimum temperature-1.7 C (28.9 F)3 of 100 (Routine)
Wagga Wagga (Kooringal)AustraliaRecord high minimum temperature12.8 C (55.0 F)2 of 100 (Routine)
Stoney CreekCanadaRecord low minimum temperature0.6 C (33.1 F)2 of 100 (Routine)

Counts by Type and Timescale

50 records
Records on 17 May 1921 by type Records set or tied on 17 May 1921 by type: Highest daily maximum 5, Lowest daily maximum 1, Highest daily minimum 6, Lowest daily minimum 8, Heaviest daily rainfall 30. 0102030Highest daily maximum: 5Lowest daily maximum: 1Highest daily minimum: 6Lowest daily minimum: 8Heaviest daily rainfall: 30Heaviest daily snowfall: 0Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 17 May 1921 by type: Highest daily maximum 5, Lowest daily maximum 1, Highest daily minimum 6, Lowest daily minimum 8, Heaviest daily rainfall 30.
Records on 17 May 1921 by type
Record typeRecords
Highest daily maximum5
Lowest daily maximum1
Highest daily minimum6
Lowest daily minimum8
Heaviest daily rainfall30
Heaviest daily snowfall0
Deepest snow cover0
Records on 17 May 1921 by timescale Records on 17 May 1921 by timescale: all-time 1, monthly 0, daily 49. 0204060all-time: 1monthly: 0daily: 49all-timemonthlydaily
Records on 17 May 1921 by timescale: all-time 1, monthly 0, daily 49.
Records on 17 May 1921 by timescale
TimescaleRecords
all-time1
monthly0
daily49

How Much Records Were Beaten By

45 broken records
Histogram of margins by which records were beaten on 17 May 1921 Margins by which the 45 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 33.1. Ties are not counted. 051015200 to 5: 205 to 10: 1710 to 15: 515 to 20: 020 to 25: 125 to 30: 130 to 35: 10 to 55 to 1010 to 1515 to 2020 to 2525 to 3030 to 35
Margins by which the 45 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 33.1. Ties are not counted.
Histogram of margins by which records were beaten on 17 May 1921
MarginRecords
0 to 520
5 to 1017
10 to 155
15 to 200
20 to 251
25 to 301
30 to 351

Top 20 by Significance

17 May 1921
Top 20 records on 17 May 1921 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
17 May 1921Hillgrove (Hillview), AUall-time rain172.7 mm (6.8 in)29.7 mm (1.2 in)28 years65 of 100 (Major)
17 May 1921Arhangelsk, RUdaily rain38.5 mm (1.5 in)33.1 mm (1.3 in)20 years50 of 100 (Notable)
17 May 1921Katoomba (Murri St), AUdaily rain50.0 mm (2.0 in)24.1 mm (0.9 in)20 years22 of 100 (Routine)
17 May 1921Camden 3 W, USdaily rain14.7 mm (0.6 in)7.8 mm (0.31 in)66 years20 of 100 (Routine)
17 May 1921Burra (Poonunda), AUdaily rain19.1 mm (0.8 in)12.5 mm (0.5 in)32 years20 of 100 (Routine)
17 May 1921Whitehead, CAdaily rain24.9 mm (1.0 in)13.0 mm (0.5 in)22 years20 of 100 (Routine)
17 May 1921Boorolong, AUdaily rain33.0 mm (1.3 in)7.6 mm (0.30 in)20 years20 of 100 (Routine)
17 May 1921Bungonia (Inverary Park), AUdaily rain20.8 mm (0.8 in)8.4 mm (0.33 in)20 years19 of 100 (Routine)
17 May 1921Maitland West, AUdaily rain19.1 mm (0.8 in)8.9 mm (0.35 in)20 years18 of 100 (Routine)
17 May 1921Newcastle Nobbys Signal Statio, AUdaily rain40.6 mm (1.6 in)11.4 mm (0.4 in)18 years17 of 100 (Routine)
17 May 1921Gloucester Post Office, AUdaily rain25.4 mm (1.0 in)13.2 mm (0.5 in)20 years16 of 100 (Routine)
17 May 1921Mount Victoria (Mt Victoria (S, AUdaily rain43.2 mm (1.7 in)9.7 mm (0.38 in)20 years16 of 100 (Routine)
17 May 1921Lithgow (Birdwood St), AUdaily rain36.6 mm (1.4 in)9.9 mm (0.39 in)20 years16 of 100 (Routine)
17 May 1921Lithgow (Cooerwull), AUdaily rain26.4 mm (1.0 in)5.6 mm (0.22 in)20 years16 of 100 (Routine)
17 May 1921Wyong (Wyong Golf Club), AUdaily rain27.4 mm (1.1 in)13.9 mm (0.5 in)20 years15 of 100 (Routine)
17 May 1921Ebor (Kotupna), AUdaily rain22.1 mm (0.9 in)5.8 mm (0.23 in)20 years14 of 100 (Routine)
17 May 1921Branxton (Dalwood Vineyard), AUdaily rain15.7 mm (0.6 in)4.5 mm (0.18 in)20 years14 of 100 (Routine)
17 May 1921Singleton Post Office, AUdaily rain12.4 mm (0.5 in)5.5 mm (0.22 in)20 years14 of 100 (Routine)
17 May 1921Stroud Post Office, AUdaily rain16.3 mm (0.6 in)8.7 mm (0.34 in)20 years14 of 100 (Routine)
17 May 1921Bellbrook (East Street), AUdaily rain20.3 mm (0.8 in)7.1 mm (0.28 in)20 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

1802 to 1921
Records on 05-17 in each year Records set or tied on this calendar date in each year from 1802 to 1921. 1921 had 50 records. 05001,0001,5002,0001802: 21803: 11808: 11816: 11834: 11837: 11839: 11847: 21848: 11851: 11853: 11855: 11858: 11859: 11861: 21862: 21863: 21864: 11871: 21872: 21873: 21874: 41877: 11878: 11879: 21880: 11881: 11882: 21883: 31885: 11887: 11888: 21889: 31891: 81892: 41893: 31895: 81896: 21897: 31898: 61899: 71900: 121901: 21902: 31903: 91904: 121905: 101906: 221907: 101908: 51909: 331910: 161911: 301912: 161913: 241914: 241915: 531916: 491917: 181918: 561919: 351920: 461921: 501922: 301923: 951924: 801925: 3261926: 1331927: 2641928: 1271929: 1681930: 4211931: 2011932: 2881933: 3651934: 3731935: 3411936: 2701937: 1831938: 3401939: 2851940: 3381941: 4081942: 5891943: 8551944: 5211945: 7991946: 5861947: 2491948: 4121949: 5441950: 3711951: 3731952: 7771953: 4411954: 2981955: 5701956: 1,1661957: 4691958: 3311959: 4881960: 4021961: 2911962: 1,3251963: 3681964: 4171965: 4621966: 4891967: 6441968: 5641969: 6381970: 7111971: 7231972: 6101973: 1,0161974: 1,3021975: 3651976: 4261977: 1,0781978: 8721979: 4591980: 7681981: 9401982: 4761983: 1,3261984: 9251985: 5611986: 9211987: 1,0541988: 1,0961989: 1,3071990: 1,1351991: 1,2371992: 1,0251993: 4951994: 8581995: 1,7341996: 1,7061997: 1,6191998: 1,0801999: 7952000: 8252001: 9602002: 9642003: 1,1272004: 7692005: 7842006: 1,5222007: 7422008: 1,3092009: 1,0502010: 8802011: 1,4832012: 7112013: 7392014: 1,0622015: 8242016: 7412017: 1,3022018: 7262019: 6862020: 4962021: 4432022: 4792023: 3852024: 5662025: 9282026: 7451802186418921910192719441961197819952012
Records set or tied on this calendar date in each year from 1802 to 1921. 1921 had 50 records.
Counts for years before the ledger starts come from the same station rules.
Records on 05-17 in each year
YearRecords
18022
18031
18081
18161
18341
18371
18391
18472
18481
18511
18531
18551
18581
18591
18612
18622
18632
18641
18712
18722
18732
18744
18771
18781
18792
18801
18811
18822
18833
18851
18871
18882
18893
18918
18924
18933
18958
18962
18973
18986
18997
190012
19012
19023
19039
190412
190510
190622
190710
19085
190933
191016
191130
191216
191324
191424
191553
191649
191718
191856
191935
192046
192150
192230
192395
192480
1925326
1926133
1927264
1928127
1929168
1930421
1931201
1932288
1933365
1934373
1935341
1936270
1937183
1938340
1939285
1940338
1941408
1942589
1943855
1944521
1945799
1946586
1947249
1948412
1949544
1950371
1951373
1952777
1953441
1954298
1955570
19561,166
1957469
1958331
1959488
1960402
1961291
19621,325
1963368
1964417
1965462
1966489
1967644
1968564
1969638
1970711
1971723
1972610
19731,016
19741,302
1975365
1976426
19771,078
1978872
1979459
1980768
1981940
1982476
19831,326
1984925
1985561
1986921
19871,054
19881,096
19891,307
19901,135
19911,237
19921,025
1993495
1994858
19951,734
19961,706
19971,619
19981,080
1999795
2000825
2001960
2002964
20031,127
2004769
2005784
20061,522
2007742
20081,309
20091,050
2010880
20111,483
2012711
2013739
20141,062
2015824
2016741
20171,302
2018726
2019686
2020496
2021443
2022479
2023385
2024566
2025928
2026745

Download the Data

  • Data for records on 1921-05-17: 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).