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Built 2026-10-19 (19 October 2026)

Weather Records on 1 May 1915

27 weather records were set or tied worldwide on 1 May 1915. Highest significance: Fredericton Unb, CA.

Key Facts for 1 May 1915

  • On 1 May 1915, 27 weather records were set or tied at long-record stations worldwide.
  • 1 were record highs and 8 were record lows, counting maximum and minimum temperature.
  • By timescale, 0 were all-time records, 3 monthly and 24 daily.
  • Fredericton Unb set a daily record precipitation of 32.0 mm (1.3 in) on 1 May 1915.
  • Across 165 earlier years (1795 to 2026) the same calendar date averaged 445 records.

Record Map

27 stations
Weather records on 1 May 1915 27 station records on 1 May 1915 are marked on the map, coloured by record type.
27 station records on 1 May 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 1 May 1915: highest significance records shown on the map
StationCountryTypeValueSignificance
Fredericton UnbCanadaRecord daily precipitation32.0 mm (1.3 in)27 of 100 (Routine)
Winnemucca APUnited StatesRecord daily snowfall13.2 cm (5.2 in)27 of 100 (Routine)
Haliburton ACanadaRecord daily precipitation27.9 mm (1.1 in)26 of 100 (Routine)
TbilisiGeorgiaRecord low minimum temperature1.0 C (33.8 F)25 of 100 (Routine)
TallinnEstoniaRecord daily precipitation22.1 mm (0.9 in)20 of 100 (Routine)
Lismore (Centre Street)AustraliaRecord daily precipitation27.9 mm (1.1 in)20 of 100 (Routine)
JonkopingSwedenRecord daily precipitation12.8 mm (0.5 in)20 of 100 (Routine)
San Diego WboUnited StatesRecord low maximum temperature13.3 C (55.9 F)20 of 100 (Routine)
Fort BeaufortSouth AfricaRecord daily precipitation5.1 mm (0.20 in)18 of 100 (Routine)
HoburgSwedenRecord daily precipitation6.7 mm (0.26 in)16 of 100 (Routine)
Santa FeUnited StatesRecord low maximum temperature8.3 C (46.9 F)16 of 100 (Routine)
ParnuEstoniaRecord daily precipitation14.7 mm (0.6 in)15 of 100 (Routine)
Saint JohnCanadaRecord daily precipitation31.5 mm (1.2 in)14 of 100 (Routine)
Bloukrans (Bos)South AfricaRecord daily precipitation6.4 mm (0.25 in)13 of 100 (Routine)
KazanRussiaRecord daily precipitation8.7 mm (0.34 in)12 of 100 (Routine)
LandsortSwedenRecord daily precipitation11.4 mm (0.4 in)12 of 100 (Routine)
Blue Hill CoopUnited StatesRecord low maximum temperature6.1 C (43.0 F)12 of 100 (Routine)
Portland Rfc CityUnited StatesRecord low minimum temperature2.2 C (36.0 F)12 of 100 (Routine)
Kei Road (Pol)South AfricaRecord daily precipitation12.2 mm (0.5 in)11 of 100 (Routine)
Cumbalum (Fairview)AustraliaRecord daily precipitation32.3 mm (1.3 in)9 of 100 (Routine)
BarrieCanadaRecord daily precipitation6.6 mm (0.26 in)9 of 100 (Routine)
KievUkraineRecord low minimum temperature-0.3 C (31.5 F)9 of 100 (Routine)
Sacramento 5 ESEUnited StatesRecord low maximum temperature13.3 C (55.9 F)9 of 100 (Routine)
RiversdaleSouth AfricaRecord daily precipitation2.0 mm (0.08 in)7 of 100 (Routine)
SheffieldUnited KingdomRecord daily precipitation12.2 mm (0.5 in)7 of 100 (Routine)
San Diego WboUnited StatesRecord low minimum temperature8.9 C (48.0 F)3 of 100 (Routine)
Zagreb-GricCroatiaRecord high maximum temperature24.5 C (76.1 F)2 of 100 (Routine)

Counts by Type and Timescale

27 records
Records on 1 May 1915 by type Records set or tied on 1 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 4, Lowest daily minimum 4, Heaviest daily rainfall 17, Heaviest daily snowfall 1. 05101520Highest daily maximum: 1Lowest daily maximum: 4Highest daily minimum: 0Lowest daily minimum: 4Heaviest daily rainfall: 17Heaviest daily snowfall: 1Deepest snow cover: 0Max highMax lowMin highMin lowRainSnowDepth
Records set or tied on 1 May 1915 by type: Highest daily maximum 1, Lowest daily maximum 4, Lowest daily minimum 4, Heaviest daily rainfall 17, Heaviest daily snowfall 1.
Records on 1 May 1915 by type
Record typeRecords
Highest daily maximum1
Lowest daily maximum4
Highest daily minimum0
Lowest daily minimum4
Heaviest daily rainfall17
Heaviest daily snowfall1
Deepest snow cover0
Records on 1 May 1915 by timescale Records on 1 May 1915 by timescale: all-time 0, monthly 3, daily 24. 0102030all-time: 0monthly: 3daily: 24all-timemonthlydaily
Records on 1 May 1915 by timescale: all-time 0, monthly 3, daily 24.
Records on 1 May 1915 by timescale
TimescaleRecords
all-time0
monthly3
daily24

How Much Records Were Beaten By

25 broken records
Histogram of margins by which records were beaten on 1 May 1915 Margins by which the 25 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 48.0. Ties are not counted. 051015200 to 10: 2010 to 20: 420 to 30: 030 to 40: 040 to 50: 10 to 1010 to 2020 to 3030 to 4040 to 50
Margins by which the 25 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 48.0. Ties are not counted.
Histogram of margins by which records were beaten on 1 May 1915
MarginRecords
0 to 1020
10 to 204
20 to 300
30 to 400
40 to 501

Top 20 by Significance

1 May 1915
Top 20 records on 1 May 1915 by significance
DateStationRecordValueBeat old record byOld record stoodSignificance
1 May 1915Fredericton Unb, CAdaily rain32.0 mm (1.3 in)14.2 mm (0.6 in)25 years27 of 100 (Routine)
1 May 1915Winnemucca AP, USmonthly snowfall13.2 cm (5.2 in)4.8 cm (1.9 in)18 years27 of 100 (Routine)
1 May 1915Haliburton A, CAdaily rain27.9 mm (1.1 in)13.9 mm (0.5 in)21 years26 of 100 (Routine)
1 May 1915Tbilisi, GEmonthly low min1.0 C (33.8 F)0.8 C (1.4 F)30 years25 of 100 (Routine)
1 May 1915Tallinn, EEdaily rain22.1 mm (0.9 in)12.0 mm (0.5 in)4 years20 of 100 (Routine)
1 May 1915Lismore (Centre Street), AUdaily rain27.9 mm (1.1 in)13.2 mm (0.5 in)24 years20 of 100 (Routine)
1 May 1915Jonkoping, SEdaily rain12.8 mm (0.5 in)3.1 mm (0.12 in)32 years20 of 100 (Routine)
1 May 1915San Diego Wbo, USmonthly low max13.3 C (55.9 F)0.6 C (1.1 F)15 years20 of 100 (Routine)
1 May 1915Fort Beaufort, ZAdaily rain5.1 mm (0.20 in)5.1 mm (0.20 in)35 years18 of 100 (Routine)
1 May 1915Hoburg, SEdaily rain6.7 mm (0.26 in)1.3 mm (0.05 in)33 years16 of 100 (Routine)
1 May 1915Santa Fe, USdaily low max8.3 C (46.9 F)1.7 C (3.1 F)27 years16 of 100 (Routine)
1 May 1915Parnu, EEdaily rain14.7 mm (0.6 in)5.0 mm (0.20 in)4 years15 of 100 (Routine)
1 May 1915Saint John, CAdaily rain31.5 mm (1.2 in)7.4 mm (0.29 in)12 years14 of 100 (Routine)
1 May 1915Bloukrans (Bos), ZAdaily rain6.4 mm (0.25 in)2.8 mm (0.11 in)32 years13 of 100 (Routine)
1 May 1915Kazan, RUdaily rain8.7 mm (0.34 in)3.2 mm (0.13 in)9 years12 of 100 (Routine)
1 May 1915Landsort, SEdaily rain11.4 mm (0.4 in)2.9 mm (0.11 in)12 years12 of 100 (Routine)
1 May 1915Blue Hill Coop, USdaily low max6.1 C (43.0 F)0.6 C (1.1 F)26 years12 of 100 (Routine)
1 May 1915Portland Rfc City, USdaily low min2.2 C (36.0 F)0.6 C (1.1 F)20 years12 of 100 (Routine)
1 May 1915Kei Road (Pol), ZAdaily rain12.2 mm (0.5 in)0.5 mm (0.02 in)28 years11 of 100 (Routine)
1 May 1915Cumbalum (Fairview), AUdaily rain32.3 mm (1.3 in)1.8 mm (0.07 in)20 years9 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

1795 to 1915
Records on 05-01 in each year Records set or tied on this calendar date in each year from 1795 to 1915. 1915 had 27 records. 05001,0001,5002,0001795: 11802: 11804: 11814: 11818: 11835: 11836: 11840: 11846: 21847: 11850: 11851: 11857: 11860: 11861: 11864: 21865: 11868: 21872: 11875: 41878: 21879: 21880: 31881: 21884: 11885: 11886: 21887: 21888: 21889: 31890: 21891: 51892: 61893: 21894: 51896: 11897: 41898: 11899: 81900: 11901: 51902: 71903: 91904: 91905: 131906: 121907: 311908: 201909: 491910: 131911: 221912: 181913: 541914: 231915: 271916: 271917: 371918: 341919: 1501920: 1861921: 411922: 921923: 641924: 631925: 1181926: 5001927: 1251928: 1901929: 1421930: 2631931: 5371932: 2201933: 7061934: 3051935: 2761936: 3681937: 2181938: 3041939: 2271940: 7311941: 3331942: 1,0361943: 5261944: 2291945: 3501946: 4151947: 6551948: 7741949: 4051950: 4391951: 8941952: 5571953: 9171954: 1,5061955: 7721956: 1,1061957: 3591958: 4481959: 7641960: 7371961: 5881962: 6151963: 7041964: 3121965: 3601966: 7071967: 9481968: 4261969: 4291970: 1,0751971: 4441972: 5621973: 8411974: 5891975: 2861976: 6731977: 5451978: 1,2021979: 6121980: 5071981: 1,2651982: 5081983: 1,4231984: 6401985: 7891986: 5121987: 1,0981988: 1,0581989: 9491990: 9221991: 6331992: 1,2011993: 1,1011994: 1,2101995: 1,3651996: 1,4391997: 8041998: 9511999: 9322000: 8092001: 1,1062002: 1,2212003: 9642004: 8872005: 1,3202006: 7342007: 8572008: 9792009: 6792010: 1,1512011: 7162012: 7962013: 9762014: 9412015: 5502016: 8442017: 1,1632018: 5192019: 7882020: 1,0992021: 8342022: 3192023: 9122024: 4582025: 4302026: 6231795186818941912192919461963198019972014
Records set or tied on this calendar date in each year from 1795 to 1915. 1915 had 27 records.
Counts for years before the ledger starts come from the same station rules.
Records on 05-01 in each year
YearRecords
17951
18021
18041
18141
18181
18351
18361
18401
18462
18471
18501
18511
18571
18601
18611
18642
18651
18682
18721
18754
18782
18792
18803
18812
18841
18851
18862
18872
18882
18893
18902
18915
18926
18932
18945
18961
18974
18981
18998
19001
19015
19027
19039
19049
190513
190612
190731
190820
190949
191013
191122
191218
191354
191423
191527
191627
191737
191834
1919150
1920186
192141
192292
192364
192463
1925118
1926500
1927125
1928190
1929142
1930263
1931537
1932220
1933706
1934305
1935276
1936368
1937218
1938304
1939227
1940731
1941333
19421,036
1943526
1944229
1945350
1946415
1947655
1948774
1949405
1950439
1951894
1952557
1953917
19541,506
1955772
19561,106
1957359
1958448
1959764
1960737
1961588
1962615
1963704
1964312
1965360
1966707
1967948
1968426
1969429
19701,075
1971444
1972562
1973841
1974589
1975286
1976673
1977545
19781,202
1979612
1980507
19811,265
1982508
19831,423
1984640
1985789
1986512
19871,098
19881,058
1989949
1990922
1991633
19921,201
19931,101
19941,210
19951,365
19961,439
1997804
1998951
1999932
2000809
20011,106
20021,221
2003964
2004887
20051,320
2006734
2007857
2008979
2009679
20101,151
2011716
2012796
2013976
2014941
2015550
2016844
20171,163
2018519
2019788
20201,099
2021834
2022319
2023912
2024458
2025430
2026623

Download the Data

  • Data for records on 1915-05-01: 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).