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Weather Records on 21 March 1917

43 weather records were set or tied worldwide on 21 March 1917. Highest significance: New Westminster, CA.

Key Facts for 21 March 1917

  • On 21 March 1917, 43 weather records were set or tied at long-record stations worldwide.
  • 5 were record highs and 23 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 43 daily.
  • New Westminster set a daily record snowfall of 7.6 cm (3.0 in) on 21 March 1917.
  • Across 157 earlier years (1797 to 2026) the same calendar date averaged 485 records.

Record Map

43 stations
Weather records on 21 March 1917 43 station records on 21 March 1917 are marked on the map, coloured by record type.
43 station records on 21 March 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 March 1917: highest significance records shown on the map
StationCountryTypeValueSignificance
New WestminsterCanadaRecord daily snowfall7.6 cm (3.0 in)27 of 100 (Routine)
Uppsala_AutSwedenRecord low minimum temperature-22.7 C (-8.9 F)27 of 100 (Routine)
ParnuEstoniaRecord low minimum temperature-26.9 C (-16.4 F)26 of 100 (Routine)
Visby_FlygplatsSwedenRecord low minimum temperature-13.0 C (8.6 F)23 of 100 (Routine)
Linkoeping-MalmslaettSwedenRecord low minimum temperature-17.8 C (0.0 F)22 of 100 (Routine)
JonkopingSwedenRecord low minimum temperature-18.0 C (-0.4 F)22 of 100 (Routine)
TartuEstoniaRecord low minimum temperature-23.8 C (-10.8 F)20 of 100 (Routine)
St. PetersburgRussiaRecord low minimum temperature-26.7 C (-16.1 F)20 of 100 (Routine)
Vasteras-HassloSwedenRecord low minimum temperature-20.5 C (-4.9 F)19 of 100 (Routine)
Hawker (Warcowie)AustraliaRecord daily precipitation2.5 mm (0.10 in)18 of 100 (Routine)
Zagreb-GricCroatiaRecord daily precipitation10.5 mm (0.4 in)18 of 100 (Routine)
Bird RocksCanadaRecord low minimum temperature-16.7 C (1.9 F)17 of 100 (Routine)
ColinroobieAustraliaRecord daily precipitation4.6 mm (0.18 in)16 of 100 (Routine)
KristianstadSwedenRecord low minimum temperature-15.5 C (4.1 F)16 of 100 (Routine)
VastervikSwedenRecord low minimum temperature-16.0 C (3.2 F)16 of 100 (Routine)
VanersborgSwedenRecord low minimum temperature-17.0 C (1.4 F)16 of 100 (Routine)
StockholmSwedenRecord low minimum temperature-17.0 C (1.4 F)14 of 100 (Routine)
YudnapinnaAustraliaRecord daily precipitation0.5 mm (0.02 in)12 of 100 (Routine)
BorasSwedenRecord low minimum temperature-18.0 C (-0.4 F)12 of 100 (Routine)
Darwin Post OfficeAustraliaRecord high minimum temperature27.7 C (81.9 F)11 of 100 (Routine)
Nicola LakeCanadaRecord daily snowfall1.3 cm (0.5 in)11 of 100 (Routine)
Swift CurrentCanadaRecord daily snowfall25.9 cm (10.2 in)11 of 100 (Routine)
OrebroSwedenRecord low minimum temperature-16.0 C (3.2 F)11 of 100 (Routine)
Swift CurrentCanadaRecord daily precipitation25.9 mm (1.0 in)10 of 100 (Routine)
St. PetersburgRussiaRecord low maximum temperature-11.0 C (12.2 F)10 of 100 (Routine)
GavleSwedenRecord low minimum temperature-19.0 C (-2.2 F)10 of 100 (Routine)
Cobar Post OfficeAustraliaRecord high minimum temperature22.8 C (73.0 F)9 of 100 (Routine)
Adelaide West TerraceAustraliaRecord low maximum temperature18.1 C (64.6 F)8 of 100 (Routine)
HaldenNorwayRecord snow depth20.0 cm (7.9 in)8 of 100 (Routine)
PermRussiaRecord daily precipitation6.5 mm (0.26 in)8 of 100 (Routine)
HaparandaSwedenRecord low minimum temperature-28.0 C (-18.4 F)7 of 100 (Routine)
AltastenbergGermanyRecord daily precipitation6.6 mm (0.26 in)5 of 100 (Routine)
Chattanooga Wb CityUnited StatesRecord daily precipitation26.7 mm (1.1 in)5 of 100 (Routine)
MalvernUnited StatesRecord daily precipitation48.3 mm (1.9 in)4 of 100 (Routine)
Ft BidwellUnited StatesRecord daily precipitation5.1 mm (0.20 in)4 of 100 (Routine)
Bourke Post OfficeAustraliaRecord high minimum temperature23.3 C (73.9 F)3 of 100 (Routine)
KarlshamnSwedenRecord low minimum temperature-12.0 C (10.4 F)3 of 100 (Routine)
Walgett Council DepotAustraliaRecord high minimum temperature22.8 C (73.0 F)2 of 100 (Routine)
KristianstadSwedenRecord low maximum temperature-3.5 C (25.7 F)2 of 100 (Routine)
JonkopingSwedenRecord low maximum temperature-5.0 C (23.0 F)2 of 100 (Routine)
UmeaSwedenRecord low minimum temperature-24.0 C (-11.2 F)2 of 100 (Routine)
Alice Springs Post OfficeAustraliaRecord high minimum temperature23.3 C (73.9 F)1 of 100 (Routine)
SarnaSwedenRecord daily precipitation1.4 mm (0.06 in)1 of 100 (Routine)

Counts by Type and Timescale

43 records
Records on 21 March 1917 by type Records set or tied on 21 March 1917 by type: Lowest daily maximum 4, Highest daily minimum 5, Lowest daily minimum 19, Heaviest daily rainfall 11, Heaviest daily snowfall 3, Deepest snow cover 1. 05101520Highest daily maximum: 0Lowest daily maximum: 4Highest daily minimum: 5Lowest daily minimum: 19Heaviest daily rainfall: 11Heaviest daily snowfall: 3Deepest snow cover: 1Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 March 1917 by type: Lowest daily maximum 4, Highest daily minimum 5, Lowest daily minimum 19, Heaviest daily rainfall 11, Heaviest daily snowfall 3, Deepest snow cover 1.
Records on 21 March 1917 by type
Record typeRecords
Highest daily maximum0
Lowest daily maximum4
Highest daily minimum5
Lowest daily minimum19
Heaviest daily rainfall11
Heaviest daily snowfall3
Deepest snow cover1
Records on 21 March 1917 by timescale Records on 21 March 1917 by timescale: all-time 0, monthly 0, daily 43. 0204060all-time: 0monthly: 0daily: 43all-timemonthlydaily
Records on 21 March 1917 by timescale: all-time 0, monthly 0, daily 43.
Records on 21 March 1917 by timescale
TimescaleRecords
all-time0
monthly0
daily43

How Much Records Were Beaten By

34 broken records
Histogram of margins by which records were beaten on 21 March 1917 Margins by which the 34 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted. 0102030400 to 10: 3110 to 20: 020 to 30: 030 to 40: 240 to 50: 050 to 60: 060 to 70: 070 to 80: 10 to 1010 to 2020 to 3030 to 4040 to 5050 to 6060 to 7070 to 80
Margins by which the 34 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 March 1917
MarginRecords
0 to 1031
10 to 200
20 to 300
30 to 402
40 to 500
50 to 600
60 to 700
70 to 801

Top 20 by Significance

21 March 1917
Top 20 records on 21 March 1917 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 March 1917New Westminster, CAdaily snowfall7.6 cm (3.0 in)7.6 cm (3.0 in)41 years27 of 100 (Routine)
21 March 1917Uppsala_Aut, SEdaily low min-22.7 C (-8.9 F)2.8 C (5.0 F)54 years27 of 100 (Routine)
21 March 1917Parnu, EEdaily low min-26.9 C (-16.4 F)7.7 C (13.9 F)35 years26 of 100 (Routine)
21 March 1917Visby_Flygplats, SEdaily low min-13.0 C (8.6 F)3.5 C (6.3 F)33 years23 of 100 (Routine)
21 March 1917Linkoeping-Malmslaett, SEdaily low min-17.8 C (0.0 F)4.8 C (8.6 F)33 years22 of 100 (Routine)
21 March 1917Jonkoping, SEdaily low min-18.0 C (-0.4 F)4.5 C (8.1 F)33 years22 of 100 (Routine)
21 March 1917Tartu, EEdaily low min-23.8 C (-10.8 F)9.8 C (17.6 F)6 years20 of 100 (Routine)
21 March 1917St. Petersburg, RUdaily low min-26.7 C (-16.1 F)4.6 C (8.3 F)35 years20 of 100 (Routine)
21 March 1917Vasteras-Hasslo, SEdaily low min-20.5 C (-4.9 F)6.5 C (11.7 F)17 years19 of 100 (Routine)
21 March 1917Hawker (Warcowie), AUdaily rain2.5 mm (0.10 in)2.5 mm (0.10 in)44 years18 of 100 (Routine)
21 March 1917Zagreb-Gric, HRdaily rain10.5 mm (0.4 in)0.1 mm (0.00 in)43 years18 of 100 (Routine)
21 March 1917Bird Rocks, CAdaily low min-16.7 C (1.9 F)2.8 C (5.0 F)31 years17 of 100 (Routine)
21 March 1917Colinroobie, AUdaily rain4.6 mm (0.18 in)4.6 mm (0.18 in)31 years16 of 100 (Routine)
21 March 1917Kristianstad, SEdaily low min-15.5 C (4.1 F)3.5 C (6.3 F)17 years16 of 100 (Routine)
21 March 1917Vastervik, SEdaily low min-16.0 C (3.2 F)4.0 C (7.2 F)17 years16 of 100 (Routine)
21 March 1917Vanersborg, SEdaily low min-17.0 C (1.4 F)3.0 C (5.4 F)24 years16 of 100 (Routine)
21 March 1917Stockholm, SEdaily low min-17.0 C (1.4 F)3.0 C (5.4 F)17 years14 of 100 (Routine)
21 March 1917Yudnapinna, AUdaily rain0.5 mm (0.02 in)0.5 mm (0.02 in)31 years12 of 100 (Routine)
21 March 1917Boras, SEdaily low min-18.0 C (-0.4 F)2.5 C (4.5 F)17 years12 of 100 (Routine)
21 March 1917Darwin Post Office, AUdaily high min27.7 C (81.9 F)1.0 C (1.8 F)6 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

1797 to 1917
Records on 03-21 in each year Records set or tied on this calendar date in each year from 1797 to 1917. 1917 had 43 records. 01,0002,0003,0001797: 21805: 11806: 11822: 11830: 11836: 11837: 11845: 11846: 11850: 11852: 21857: 11865: 71874: 11877: 11880: 11881: 11883: 21884: 11885: 51886: 21888: 11890: 31892: 11893: 11894: 11895: 11896: 21897: 21898: 31899: 41900: 41901: 91902: 181903: 231904: 171905: 61906: 31907: 141908: 31909: 111910: 101911: 101912: 361913: 971914: 711915: 271916: 441917: 431918: 431919: 291920: 901921: 961922: 501923: 721924: 961925: 1411926: 2821927: 1791928: 2931929: 1041930: 991931: 6381932: 3051933: 2351934: 1141935: 6751936: 2251937: 1721938: 7831939: 2801940: 3661941: 3111942: 3301943: 2171944: 5561945: 2941946: 5701947: 1921948: 9481949: 3301950: 3981951: 7791952: 6891953: 3421954: 2111955: 1,1241956: 6861957: 3731958: 6191959: 2301960: 8921961: 2681962: 5481963: 2981964: 3331965: 1,9611966: 4641967: 4871968: 7981969: 2191970: 6121971: 3581972: 5191973: 3851974: 1,0971975: 7511976: 7101977: 3761978: 8381979: 6561980: 7751981: 6761982: 8501983: 1,6731984: 8351985: 5031986: 1,1701987: 9481988: 1,1551989: 1,3961990: 1,3801991: 1,4461992: 8771993: 6871994: 6841995: 1,1411996: 1,1191997: 1,6701998: 9351999: 1,0442000: 8022001: 1,3422002: 1,5932003: 1,0732004: 1,5112005: 6492006: 1,4172007: 1,2202008: 7342009: 5582010: 1,1342011: 1,4512012: 2,8542013: 7272014: 6392015: 5682016: 5532017: 1,1172018: 8092019: 6492020: 4452021: 4892022: 6152023: 8152024: 4322025: 8452026: 2,6141797188119011917193319491965198119972013
Records set or tied on this calendar date in each year from 1797 to 1917. 1917 had 43 records.
Counts for years before the ledger starts come from the same station rules.
Records on 03-21 in each year
YearRecords
17972
18051
18061
18221
18301
18361
18371
18451
18461
18501
18522
18571
18657
18741
18771
18801
18811
18832
18841
18855
18862
18881
18903
18921
18931
18941
18951
18962
18972
18983
18994
19004
19019
190218
190323
190417
19056
19063
190714
19083
190911
191010
191110
191236
191397
191471
191527
191644
191743
191843
191929
192090
192196
192250
192372
192496
1925141
1926282
1927179
1928293
1929104
193099
1931638
1932305
1933235
1934114
1935675
1936225
1937172
1938783
1939280
1940366
1941311
1942330
1943217
1944556
1945294
1946570
1947192
1948948
1949330
1950398
1951779
1952689
1953342
1954211
19551,124
1956686
1957373
1958619
1959230
1960892
1961268
1962548
1963298
1964333
19651,961
1966464
1967487
1968798
1969219
1970612
1971358
1972519
1973385
19741,097
1975751
1976710
1977376
1978838
1979656
1980775
1981676
1982850
19831,673
1984835
1985503
19861,170
1987948
19881,155
19891,396
19901,380
19911,446
1992877
1993687
1994684
19951,141
19961,119
19971,670
1998935
19991,044
2000802
20011,342
20021,593
20031,073
20041,511
2005649
20061,417
20071,220
2008734
2009558
20101,134
20111,451
20122,854
2013727
2014639
2015568
2016553
20171,117
2018809
2019649
2020445
2021489
2022615
2023815
2024432
2025845
20262,614

Download the Data

  • Data for records on 1917-03-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).