Built 2026-10-17 (17 October 2026)

Nantes-Bouguenais Threshold Days by Year

13 fixed thresholds counted per year at Nantes-Bouguenais (FRM00007222): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nantes-Bouguenais Thresholds

  • Nantes-Bouguenais: nights with a minimum temperature at or below 0 C (32 F) in 81 years, most in 1956 with 62.
  • Nantes-Bouguenais: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1988 with 36.
  • Nantes-Bouguenais: days with a maximum temperature at or above 30 C (86 F) in 77 years, most in 2022 with 35.
  • Nantes-Bouguenais: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 1966 with 7.
  • 13 fixed thresholds have at least one qualifying day at Nantes-Bouguenais.
77 years with a qualifying day
Days at or above 30 C (86 F) per year at Nantes-Bouguenais Days per year at Nantes-Bouguenais with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2022. 02040601946: 61947: 241948: 31949: 261950: 31951: 21952: 91953: 81954: 11955: 111956: 31957: 101959: 101960: 21961: 101962: 41963: 31964: 81967: 31968: 51969: 81970: 41971: 91972: 11973: 121974: 41975: 101976: 261977: 11979: 11980: 21981: 61982: 121983: 151984: 91985: 81986: 31987: 111988: 41989: 161990: 221991: 161992: 81993: 41994: 131995: 241996: 71997: 121998: 81999: 82000: 92001: 122002: 32003: 242004: 112005: 172006: 182007: 12008: 12009: 122010: 102011: 52012: 92013: 162014: 62015: 112016: 162017: 162018: 202019: 222020: 142021: 102022: 352023: 222024: 72025: 262026: 521946195419631973198219901998200620142022
Days per year at Nantes-Bouguenais with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 2022.
Days at or above 30 C (86 F) per year at Nantes-Bouguenais
YearDaysDecade average
1946614.8
19472414.8
1948314.8
19492614.8
195036.3
195126.3
195296.3
195386.3
195416.3
1955116.3
195636.3
1957106.3
1959106.3
196025.4
1961105.4
196245.4
196335.4
196485.4
196735.4
196855.4
196985.4
197047.6
197197.6
197217.6
1973127.6
197447.6
1975107.6
1976267.6
197717.6
197917.6
198028.6
198168.6
1982128.6
1983158.6
198498.6
198588.6
198638.6
1987118.6
198848.6
1989168.6
19902212.2
19911612.2
1992812.2
1993412.2
19941312.2
19952412.2
1996712.2
19971212.2
1998812.2
1999812.2
2000910.8
20011210.8
2002310.8
20032410.8
20041110.8
20051710.8
20061810.8
2007110.8
2008110.8
20091210.8
20101013.1
2011513.1
2012913.1
20131613.1
2014613.1
20151113.1
20161613.1
20171613.1
20182013.1
20192213.1
20201423.7
20211023.7
20223523.7
20232223.7
2024723.7
20252623.7
20265223.7
First to last qualifying date each year at Nantes-Bouguenais For each year, a bar from the first to the last day at Nantes-Bouguenais meeting 30 C (86 F). 1946: 1 July 1946 to 4 August 19461947: 28 May 1947 to 15 September 19471948: 26 July 1948 to 28 July 19481949: 27 June 1949 to 12 September 19491950: 28 June 1950 to 20 July 19501951: 21 July 1951 to 28 July 19511952: 28 June 1952 to 27 August 19521953: 24 May 1953 to 8 September 19531954: 31 August 1954 to 31 August 19541955: 14 July 1955 to 25 August 19551956: 7 July 1956 to 26 July 19561957: 28 June 1957 to 7 August 19571959: 3 July 1959 to 26 August 19591960: 18 June 1960 to 19 June 19601961: 25 June 1961 to 18 September 19611962: 24 July 1962 to 2 September 19621963: 22 July 1963 to 31 July 19631964: 12 June 1964 to 13 September 19641967: 1 July 1967 to 13 July 19671968: 30 June 1968 to 23 August 19681969: 14 July 1969 to 19 August 19691970: 6 July 1970 to 3 August 19701971: 7 July 1971 to 8 September 19711972: 17 July 1972 to 17 July 19721973: 1 July 1973 to 14 September 19731974: 8 July 1974 to 15 August 19741975: 13 July 1975 to 20 August 19751976: 8 June 1976 to 25 August 19761977: 3 July 1977 to 3 July 19771979: 26 July 1979 to 26 July 19791980: 4 June 1980 to 2 August 19801981: 15 June 1981 to 15 August 19811982: 9 June 1982 to 18 September 19821983: 4 June 1983 to 31 July 19831984: 19 June 1984 to 20 August 19841985: 3 July 1985 to 30 September 19851986: 16 June 1986 to 28 June 19861987: 29 June 1987 to 19 September 19871988: 7 August 1988 to 8 September 19881989: 20 May 1989 to 21 September 19891990: 12 July 1990 to 23 August 19901991: 4 July 1991 to 5 September 19911992: 28 June 1992 to 8 August 19921993: 17 August 1993 to 21 August 19931994: 24 June 1994 to 21 August 19941995: 27 June 1995 to 22 August 19951996: 6 June 1996 to 19 August 19961997: 23 July 1997 to 19 September 19971998: 19 June 1998 to 31 August 19981999: 2 July 1999 to 11 September 19992000: 16 June 2000 to 11 September 20002001: 24 June 2001 to 25 August 20012002: 17 June 2002 to 27 July 20022003: 30 May 2003 to 19 September 20032004: 7 June 2004 to 9 September 20042005: 18 June 2005 to 3 September 20052006: 9 June 2006 to 10 September 20062007: 5 August 2007 to 5 August 20072008: 30 August 2008 to 30 August 20082009: 28 June 2009 to 8 September 20092010: 24 May 2010 to 5 September 20102011: 4 June 2011 to 2 October 20112012: 27 June 2012 to 8 September 20122013: 7 July 2013 to 5 September 20132014: 3 July 2014 to 25 July 20142015: 4 June 2015 to 29 August 20152016: 17 July 2016 to 12 September 20162017: 25 May 2017 to 28 August 20172018: 27 June 2018 to 17 September 20182019: 1 June 2019 to 15 September 20192020: 2 June 2020 to 17 September 20202021: 13 June 2021 to 7 September 20212022: 18 May 2022 to 13 September 20222023: 7 June 2023 to 9 October 20232024: 26 June 2024 to 11 August 20242025: 30 May 2025 to 25 August 20252026: 22 May 2026 to 17 August 202619461956196919801990200020102020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Nantes-Bouguenais meeting 30 C (86 F).
First to last qualifying date each year at Nantes-Bouguenais
YearFirst dateLast date
19461946-07-011946-08-04
19471947-05-281947-09-15
19481948-07-261948-07-28
19491949-06-271949-09-12
19501950-06-281950-07-20
19511951-07-211951-07-28
19521952-06-281952-08-27
19531953-05-241953-09-08
19541954-08-311954-08-31
19551955-07-141955-08-25
19561956-07-071956-07-26
19571957-06-281957-08-07
19591959-07-031959-08-26
19601960-06-181960-06-19
19611961-06-251961-09-18
19621962-07-241962-09-02
19631963-07-221963-07-31
19641964-06-121964-09-13
19671967-07-011967-07-13
19681968-06-301968-08-23
19691969-07-141969-08-19
19701970-07-061970-08-03
19711971-07-071971-09-08
19721972-07-171972-07-17
19731973-07-011973-09-14
19741974-07-081974-08-15
19751975-07-131975-08-20
19761976-06-081976-08-25
19771977-07-031977-07-03
19791979-07-261979-07-26
19801980-06-041980-08-02
19811981-06-151981-08-15
19821982-06-091982-09-18
19831983-06-041983-07-31
19841984-06-191984-08-20
19851985-07-031985-09-30
19861986-06-161986-06-28
19871987-06-291987-09-19
19881988-08-071988-09-08
19891989-05-201989-09-21
19901990-07-121990-08-23
19911991-07-041991-09-05
19921992-06-281992-08-08
19931993-08-171993-08-21
19941994-06-241994-08-21
19951995-06-271995-08-22
19961996-06-061996-08-19
19971997-07-231997-09-19
19981998-06-191998-08-31
19991999-07-021999-09-11
20002000-06-162000-09-11
20012001-06-242001-08-25
20022002-06-172002-07-27
20032003-05-302003-09-19
20042004-06-072004-09-09
20052005-06-182005-09-03
20062006-06-092006-09-10
20072007-08-052007-08-05
20082008-08-302008-08-30
20092009-06-282009-09-08
20102010-05-242010-09-05
20112011-06-042011-10-02
20122012-06-272012-09-08
20132013-07-072013-09-05
20142014-07-032014-07-25
20152015-06-042015-08-29
20162016-07-172016-09-12
20172017-05-252017-08-28
20182018-06-272018-09-17
20192019-06-012019-09-15
20202020-06-022020-09-17
20212021-06-132021-09-07
20222022-05-182022-09-13
20232023-06-072023-10-09
20242024-06-262024-08-11
20252025-05-302025-08-25
20262026-05-222026-08-17

Every Fixed Threshold

Fixed thresholds at Nantes-Bouguenais
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7735202252
35 C (95 F): Days3112202221
40 C (104 F): Days3119495
90 F (32.2 C): Days6519202239
100 F (37.8 C): Days73200312
0 C (32 F): Ice days (max371319461
0 C (32 F): Frost days (min816219569
-10 C (14 F): Days with min11619851
20 C (68 F): Tropical nights (min448200319
25 C (77 F): Days with min10n/a2
10 mm (0.39 in): Days with 10 mm or more rain8136198812
25 mm (0.98 in): Days with 25 mm or more rain77719665
50 mm (1.97 in): Days with 50 mm or more rain9220181

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

  • Data for Nantes-Bouguenais threshold days by year: CSV or JSON. Field meanings are on the data page.

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)) Data as of 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-15).