Built 2026-10-19 (19 October 2026)

Tonisvorst Threshold Days by Year (GME00129346)

13 fixed thresholds counted per year at Tonisvorst (GME00129346): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tonisvorst Thresholds

  • Tonisvorst: nights with a minimum temperature at or below 0 C (32 F) in 72 years, most in 1963 with 100.
  • Tonisvorst: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1961 with 35.
  • Tonisvorst: days with a maximum temperature at or above 30 C (86 F) in 71 years, most in 2022 with 25.
  • Tonisvorst: days with a maximum temperature at or below 0 C (32 F) in 61 years, most in 1963 with 48.
  • 13 fixed thresholds have at least one qualifying day at Tonisvorst.
71 years with a qualifying day
Days at or above 30 C (86 F) per year at Tonisvorst Days per year at Tonisvorst with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2022. 0102030401954: 11956: 11957: 101958: 21959: 131960: 21961: 71962: 11963: 41964: 131966: 61967: 51968: 41969: 101970: 21971: 11972: 41973: 161974: 31975: 131976: 211977: 11978: 31979: 31980: 31981: 31982: 51983: 91984: 51985: 31986: 51987: 31988: 11989: 61990: 61991: 61992: 91993: 21994: 181995: 201996: 41997: 81998: 71999: 92000: 42001: 112002: 82003: 162004: 62005: 82006: 172007: 42008: 32009: 92010: 132011: 62012: 72013: 122014: 42015: 142016: 152017: 112018: 222019: 192020: 202021: 32022: 252023: 172024: 152025: 162026: 38195419631972198019881996200420122020
Days per year at Tonisvorst with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 2022.
Days at or above 30 C (86 F) per year at Tonisvorst
YearDaysDecade average
195415.4
195615.4
1957105.4
195825.4
1959135.4
196025.8
196175.8
196215.8
196345.8
1964135.8
196665.8
196755.8
196845.8
1969105.8
197026.7
197116.7
197246.7
1973166.7
197436.7
1975136.7
1976216.7
197716.7
197836.7
197936.7
198034.3
198134.3
198254.3
198394.3
198454.3
198534.3
198654.3
198734.3
198814.3
198964.3
199068.9
199168.9
199298.9
199328.9
1994188.9
1995208.9
199648.9
199788.9
199878.9
199998.9
200048.6
2001118.6
200288.6
2003168.6
200468.6
200588.6
2006178.6
200748.6
200838.6
200998.6
20101312.3
2011612.3
2012712.3
20131212.3
2014412.3
20151412.3
20161512.3
20171112.3
20182212.3
20191912.3
20202019.1
2021319.1
20222519.1
20231719.1
20241519.1
20251619.1
20263819.1
First to last qualifying date each year at Tonisvorst For each year, a bar from the first to the last day at Tonisvorst meeting 30 C (86 F). 1954: 3 August 1954 to 3 August 19541956: 9 July 1956 to 9 July 19561957: 17 June 1957 to 7 July 19571958: 29 August 1958 to 6 September 19581959: 21 June 1959 to 21 August 19591960: 6 June 1960 to 23 June 19601961: 26 June 1961 to 19 September 19611962: 3 September 1962 to 3 September 19621963: 22 July 1963 to 3 August 19631964: 12 June 1964 to 14 September 19641966: 10 June 1966 to 13 August 19661967: 2 July 1967 to 1 August 19671968: 21 April 1968 to 10 July 19681969: 13 May 1969 to 10 August 19691970: 8 June 1970 to 27 June 19701971: 18 August 1971 to 18 August 19711972: 18 July 1972 to 21 July 19721973: 26 June 1973 to 6 September 19731974: 14 August 1974 to 16 August 19741975: 8 July 1975 to 21 August 19751976: 8 May 1976 to 16 July 19761977: 13 June 1977 to 13 June 19771978: 29 July 1978 to 31 July 19781979: 31 May 1979 to 4 June 19791980: 26 July 1980 to 3 August 19801981: 9 July 1981 to 6 August 19811982: 9 July 1982 to 3 August 19821983: 23 June 1983 to 19 August 19831984: 9 July 1984 to 23 August 19841985: 4 June 1985 to 14 August 19851986: 16 June 1986 to 3 August 19861987: 29 June 1987 to 21 August 19871988: 23 July 1988 to 23 July 19881989: 26 June 1989 to 20 August 19891990: 31 July 1990 to 12 August 19901991: 5 July 1991 to 22 August 19911992: 14 May 1992 to 9 August 19921993: 9 June 1993 to 1 July 19931994: 25 June 1994 to 5 August 19941995: 30 June 1995 to 22 August 19951996: 6 June 1996 to 20 August 19961997: 8 August 1997 to 25 August 19971998: 10 May 1998 to 12 August 19981999: 3 July 1999 to 12 September 19992000: 16 May 2000 to 20 June 20002001: 26 June 2001 to 26 August 20012002: 17 June 2002 to 19 August 20022003: 4 June 2003 to 12 August 20032004: 8 June 2004 to 9 August 20042005: 1 May 2005 to 28 July 20052006: 13 June 2006 to 27 July 20062007: 8 June 2007 to 6 August 20072008: 2 June 2008 to 31 July 20082009: 25 May 2009 to 24 August 20092010: 28 June 2010 to 21 July 20102011: 30 May 2011 to 3 September 20112012: 25 July 2012 to 9 September 20122013: 18 June 2013 to 6 September 20132014: 7 June 2014 to 19 July 20142015: 5 June 2015 to 31 August 20152016: 23 June 2016 to 15 September 20162017: 27 May 2017 to 29 August 20172018: 26 May 2018 to 18 September 20182019: 2 June 2019 to 31 August 20192020: 24 June 2020 to 15 September 20202021: 16 June 2021 to 18 June 20212022: 18 May 2022 to 6 September 20222023: 9 June 2023 to 11 September 20232024: 25 June 2024 to 2 September 20242025: 13 June 2025 to 19 August 20252026: 23 May 2026 to 27 August 202619541964197419831992200120102019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tonisvorst meeting 30 C (86 F).
First to last qualifying date each year at Tonisvorst
YearFirst dateLast date
19541954-08-031954-08-03
19561956-07-091956-07-09
19571957-06-171957-07-07
19581958-08-291958-09-06
19591959-06-211959-08-21
19601960-06-061960-06-23
19611961-06-261961-09-19
19621962-09-031962-09-03
19631963-07-221963-08-03
19641964-06-121964-09-14
19661966-06-101966-08-13
19671967-07-021967-08-01
19681968-04-211968-07-10
19691969-05-131969-08-10
19701970-06-081970-06-27
19711971-08-181971-08-18
19721972-07-181972-07-21
19731973-06-261973-09-06
19741974-08-141974-08-16
19751975-07-081975-08-21
19761976-05-081976-07-16
19771977-06-131977-06-13
19781978-07-291978-07-31
19791979-05-311979-06-04
19801980-07-261980-08-03
19811981-07-091981-08-06
19821982-07-091982-08-03
19831983-06-231983-08-19
19841984-07-091984-08-23
19851985-06-041985-08-14
19861986-06-161986-08-03
19871987-06-291987-08-21
19881988-07-231988-07-23
19891989-06-261989-08-20
19901990-07-311990-08-12
19911991-07-051991-08-22
19921992-05-141992-08-09
19931993-06-091993-07-01
19941994-06-251994-08-05
19951995-06-301995-08-22
19961996-06-061996-08-20
19971997-08-081997-08-25
19981998-05-101998-08-12
19991999-07-031999-09-12
20002000-05-162000-06-20
20012001-06-262001-08-26
20022002-06-172002-08-19
20032003-06-042003-08-12
20042004-06-082004-08-09
20052005-05-012005-07-28
20062006-06-132006-07-27
20072007-06-082007-08-06
20082008-06-022008-07-31
20092009-05-252009-08-24
20102010-06-282010-07-21
20112011-05-302011-09-03
20122012-07-252012-09-09
20132013-06-182013-09-06
20142014-06-072014-07-19
20152015-06-052015-08-31
20162016-06-232016-09-15
20172017-05-272017-08-29
20182018-05-262018-09-18
20192019-06-022019-08-31
20202020-06-242020-09-15
20212021-06-162021-06-18
20222022-05-182022-09-06
20232023-06-092023-09-11
20242024-06-252024-09-02
20252025-06-132025-08-19
20262026-05-232026-08-27

Every Fixed Threshold

Fixed thresholds at Tonisvorst
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7125202238
35 C (95 F): Days26520189
40 C (104 F): Days2220191
90 F (32.2 C): Days5214202018
100 F (37.8 C): Days4320192
0 C (32 F): Ice days (max614819633
0 C (32 F): Frost days (min72100196321
-10 C (14 F): Days with min362319564
-20 C (-4 F): Days with min1119561
20 C (68 F): Tropical nights (min28419945
10 mm (0.39 in): Days with 10 mm or more rain723519617
25 mm (0.98 in): Days with 25 mm or more rain54620212
50 mm (1.97 in): Days with 50 mm or more rain9220211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Tonisvorst 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).