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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Fond du Lac Co AP Threshold Days by Year (USW00004840)

15 fixed thresholds counted per year at Fond du Lac Co AP (USW00004840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fond du Lac Co AP Thresholds

  • Fond du Lac Co AP: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 2012 with 50.
  • Fond du Lac Co AP: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 2014 with 88.
  • Fond du Lac Co AP: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 2018 with 171.
  • Fond du Lac Co AP: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 2013 with 77.
  • 15 fixed thresholds have at least one qualifying day at Fond du Lac Co AP.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Fond du Lac Co AP Days per year at Fond du Lac Co AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2012. 02040601997: 111998: 261999: 292000: 62001: 272002: 182003: 162004: 42005: 432006: 242007: 302008: 112009: 82010: 252011: 362012: 502013: 172014: 32015: 142016: 292017: 172018: 322019: 262020: 362021: 502022: 272023: 342024: 192025: 161997200020032006200920122015201820212024
Days per year at Fond du Lac Co AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2012.
Days at or above 30 C (86 F) per year at Fond du Lac Co AP
YearDaysDecade average
19971122
19982622
19992922
2000618.7
20012718.7
20021818.7
20031618.7
2004418.7
20054318.7
20062418.7
20073018.7
20081118.7
2009818.7
20102524.9
20113624.9
20125024.9
20131724.9
2014324.9
20151424.9
20162924.9
20171724.9
20183224.9
20192624.9
20203630.3
20215030.3
20222730.3
20233430.3
20241930.3
20251630.3
First to last qualifying date each year at Fond du Lac Co AP For each year, a bar from the first to the last day at Fond du Lac Co AP meeting 30 C (86 F). 1997: 23 June 1997 to 2 August 19971998: 17 May 1998 to 13 September 19981999: 29 May 1999 to 5 September 19992000: 8 June 2000 to 31 August 20002001: 15 May 2001 to 9 August 20012002: 1 June 2002 to 9 September 20022003: 23 June 2003 to 11 September 20032004: 7 June 2004 to 20 July 20042005: 7 June 2005 to 5 October 20052006: 28 May 2006 to 4 August 20062007: 14 May 2007 to 6 October 20072008: 6 June 2008 to 2 September 20082009: 20 June 2009 to 14 August 20092010: 23 May 2010 to 23 September 20102011: 12 May 2011 to 12 September 20112012: 18 May 2012 to 12 September 20122013: 27 June 2013 to 10 September 20132014: 21 July 2014 to 22 August 20142015: 9 June 2015 to 6 September 20152016: 6 May 2016 to 6 September 20162017: 10 June 2017 to 25 September 20172018: 25 May 2018 to 17 September 20182019: 31 May 2019 to 30 September 20192020: 25 May 2020 to 27 August 20202021: 1 May 2021 to 1 October 20212022: 10 May 2022 to 1 September 20222023: 30 May 2023 to 2 October 20232024: 18 May 2024 to 16 September 20242025: 21 June 2025 to 4 October 202519972001200520092013201720212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fond du Lac Co AP meeting 30 C (86 F).
First to last qualifying date each year at Fond du Lac Co AP
YearFirst dateLast date
19971997-06-231997-08-02
19981998-05-171998-09-13
19991999-05-291999-09-05
20002000-06-082000-08-31
20012001-05-152001-08-09
20022002-06-012002-09-09
20032003-06-232003-09-11
20042004-06-072004-07-20
20052005-06-072005-10-05
20062006-05-282006-08-04
20072007-05-142007-10-06
20082008-06-062008-09-02
20092009-06-202009-08-14
20102010-05-232010-09-23
20112011-05-122011-09-12
20122012-05-182012-09-12
20132013-06-272013-09-10
20142014-07-212014-08-22
20152015-06-092015-09-06
20162016-05-062016-09-06
20172017-06-102017-09-25
20182018-05-252018-09-17
20192019-05-312019-09-30
20202020-05-252020-08-27
20212021-05-012021-10-01
20222022-05-102022-09-01
20232023-05-302023-10-02
20242024-05-182024-09-16
20252025-06-212025-10-04

Every Fixed Threshold

Fixed thresholds at Fond du Lac Co AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2950201216
35 C (95 F): Days11920122
90 F (32.2 C): Days272720214
100 F (37.8 C): Days1420124
0 C (32 F): Ice days (max2988201466
0 C (32 F): Frost days (min291712018153
-10 C (14 F): Days with min2977201357
-20 C (-4 F): Days with min2932201413
-30 C (-22 F): Days with min3420191
20 C (68 F): Tropical nights (min2928202113
25 C (77 F): Days with min4220121
10 mm (0.39 in): Days with 10 mm or more rain2738201923
25 mm (0.98 in): Days with 25 mm or more rain271220202
50 mm (1.97 in): Days with 50 mm or more rain14320182
100 mm (3.94 in): Days with 100 mm or more rain1120081

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Fond du Lac Co AP 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 (2025-12-31).