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Weather Records on 21 March 1909

11 weather records were set or tied worldwide on 21 March 1909. Highest significance: Winnemucca AP, US.

Key Facts for 21 March 1909

  • On 21 March 1909, 11 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 2 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 0 monthly and 11 daily.
  • Winnemucca AP set a daily record precipitation of 8.4 mm (0.33 in) on 21 March 1909.
  • Across 156 earlier years (1797 to 2025) the same calendar date averaged 472 records.

Record Map

11 stations
Weather records on 21 March 1909 11 station records on 21 March 1909 are marked on the map, coloured by record type.
11 station records on 21 March 1909 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 March 1909: highest significance records shown on the map
StationCountryTypeValueSignificance
Winnemucca APUnited StatesRecord daily precipitation8.4 mm (0.33 in)20 of 100 (Routine)
Kirchdorf/PoelGermanyRecord daily precipitation6.0 mm (0.24 in)17 of 100 (Routine)
SandvigDenmarkRecord daily precipitation8.0 mm (0.31 in)12 of 100 (Routine)
RoermondNetherlandsRecord daily precipitation5.0 mm (0.20 in)12 of 100 (Routine)
Winnemucca APUnited StatesRecord daily snowfall3.8 cm (1.5 in)12 of 100 (Routine)
Walgett Council DepotAustraliaRecord low minimum temperature8.9 C (48.0 F)8 of 100 (Routine)
TranebjergDenmarkRecord daily precipitation3.8 mm (0.15 in)8 of 100 (Routine)
MarylandAustraliaRecord daily precipitation15.0 mm (0.6 in)6 of 100 (Routine)
Stornoway AirportUnited KingdomRecord high maximum temperature10.6 C (51.1 F)3 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord daily precipitation4.3 mm (0.17 in)3 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord low maximum temperature11.1 C (52.0 F)1 of 100 (Routine)

Counts by Type and Timescale

11 records
Records on 21 March 1909 by type Records set or tied on 21 March 1909 by type: Highest daily maximum 1, Lowest daily maximum 1, Lowest daily minimum 1, Heaviest daily rainfall 7, Heaviest daily snowfall 1. 02468Highest daily maximum: 1Lowest daily maximum: 1Highest daily minimum: 0Lowest daily minimum: 1Heaviest daily rainfall: 7Heaviest daily snowfall: 1Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 21 March 1909 by type: Highest daily maximum 1, Lowest daily maximum 1, Lowest daily minimum 1, Heaviest daily rainfall 7, Heaviest daily snowfall 1.
Records on 21 March 1909 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum1
Highest daily minimum0
Lowest daily minimum1
Heaviest daily rainfall7
Heaviest daily snowfall1
Deepest snow cover0
Records on 21 March 1909 by timescale Records on 21 March 1909 by timescale: all-time 0, monthly 0, daily 11. 051015all-time: 0monthly: 0daily: 11all-timemonthlydaily
Records on 21 March 1909 by timescale: all-time 0, monthly 0, daily 11.
Records on 21 March 1909 by timescale
TimescaleRecords
all-time0
monthly0
daily11

How Much Records Were Beaten By

9 broken records
Histogram of margins by which records were beaten on 21 March 1909 Margins by which the 9 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.0. Ties are not counted. 02460 to 3: 63 to 5: 25 to 8: 08 to 10: 010 to 13: 013 to 15: 015 to 18: 018 to 20: 10 to 33 to 55 to 88 to 1010 to 1313 to 1515 to 1818 to 20
Margins by which the 9 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 18.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 March 1909
MarginRecords
0 to 36
3 to 52
5 to 80
8 to 100
10 to 130
13 to 150
15 to 180
18 to 201

Top 20 by Significance

21 March 1909
Top 11 records on 21 March 1909 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
21 March 1909Winnemucca AP, USdaily rain8.4 mm (0.33 in)3.8 mm (0.15 in)30 years20 of 100 (Routine)
21 March 1909Kirchdorf/Poel, DEdaily rain6.0 mm (0.24 in)2.6 mm (0.10 in)10 years17 of 100 (Routine)
21 March 1909Sandvig, DKdaily rain8.0 mm (0.31 in)2.3 mm (0.09 in)4 years12 of 100 (Routine)
21 March 1909Roermond, NLdaily rain5.0 mm (0.20 in)0.2 mm (0.01 in)26 years12 of 100 (Routine)
21 March 1909Winnemucca AP, USdaily snowfall3.8 cm (1.5 in)1.8 cm (0.7 in)10 years12 of 100 (Routine)
21 March 1909Walgett Council Depot, AUdaily low min8.9 C (48.0 F)1.1 C (2.0 F)9 years8 of 100 (Routine)
21 March 1909Tranebjerg, DKdaily rain3.8 mm (0.15 in)0.4 mm (0.02 in)13 years8 of 100 (Routine)
21 March 1909Maryland, AUdaily rain15.0 mm (0.6 in)0.5 mm (0.02 in)8 years6 of 100 (Routine)
21 March 1909Stornoway Airport, GBdaily high max (Tie)10.6 C (51.1 F)tie34 years3 of 100 (Routine)
21 March 1909Sacramento 5 ESE, USdaily rain4.3 mm (0.17 in)0.5 mm (0.02 in)2 years3 of 100 (Routine)
21 March 1909Sacramento 5 ESE, USdaily low max (Tie)11.1 C (52.0 F)tie4 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

1797 to 1909
Records on 03-21 in each year Records set or tied on this calendar date in each year from 1797 to 1909. 1909 had 11 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: 8082019: 6482020: 4422021: 4862022: 6122023: 8122024: 4322025: 8451797188119011917193319491965198119972013
Records set or tied on this calendar date in each year from 1797 to 1909. 1909 had 11 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
2018808
2019648
2020442
2021486
2022612
2023812
2024432
2025845

Download the Data

  • Data for records on 1909-03-21: 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 (2025-12-31).