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Built 2026-10-19 (19 October 2026)

Valparaiso Porter Co Muni AP Threshold Days by Year (USW00004846)

13 fixed thresholds counted per year at Valparaiso Porter Co Muni AP (USW00004846): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Valparaiso Porter Co Muni AP Thresholds

  • Valparaiso Porter Co Muni AP: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 2018 with 67.
  • Valparaiso Porter Co Muni AP: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 2018 with 35.
  • Valparaiso Porter Co Muni AP: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 2014 with 75.
  • Valparaiso Porter Co Muni AP: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 2013 with 143.
  • 13 fixed thresholds have at least one qualifying day at Valparaiso Porter Co Muni AP.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Valparaiso Porter Co Muni AP Days per year at Valparaiso Porter Co Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 67 in 2018. 0204060801998: 401999: 392000: 222001: 422002: 542003: 202004: 172005: 462006: 222007: 532008: 252009: 162010: 422011: 402012: 602013: 322014: 122015: 252016: 492017: 452018: 672019: 482020: 382021: 522022: 392023: 292024: 422025: 571998200120042007201020132016201920222025
Days per year at Valparaiso Porter Co Muni AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 67 in 2018.
Days at or above 30 C (86 F) per year at Valparaiso Porter Co Muni AP
YearDaysDecade average
19984039.5
19993939.5
20002231.7
20014231.7
20025431.7
20032031.7
20041731.7
20054631.7
20062231.7
20075331.7
20082531.7
20091631.7
20104242
20114042
20126042
20133242
20141242
20152542
20164942
20174542
20186742
20194842
20203842.8
20215242.8
20223942.8
20232942.8
20244242.8
20255742.8
First to last qualifying date each year at Valparaiso Porter Co Muni AP For each year, a bar from the first to the last day at Valparaiso Porter Co Muni AP meeting 30 C (86 F). 1998: 14 May 1998 to 26 September 19981999: 29 May 1999 to 26 September 19992000: 6 May 2000 to 19 September 20002001: 3 May 2001 to 7 September 20012002: 15 April 2002 to 30 September 20022003: 18 June 2003 to 28 August 20032004: 18 April 2004 to 23 September 20042005: 5 June 2005 to 22 September 20052006: 29 May 2006 to 4 August 20062007: 1 May 2007 to 8 October 20072008: 5 June 2008 to 2 September 20082009: 19 June 2009 to 16 August 20092010: 23 May 2010 to 9 October 20102011: 10 May 2011 to 3 September 20112012: 21 March 2012 to 4 September 20122013: 14 May 2013 to 12 September 20132014: 8 May 2014 to 5 September 20142015: 7 May 2015 to 8 September 20152016: 24 May 2016 to 25 September 20162017: 16 May 2017 to 26 September 20172018: 1 May 2018 to 9 October 20182019: 18 May 2019 to 1 October 20192020: 24 May 2020 to 3 September 20202021: 22 May 2021 to 27 September 20212022: 10 May 2022 to 21 September 20222023: 29 May 2023 to 3 October 20232024: 20 May 2024 to 21 September 20242025: 15 May 2025 to 4 October 20251998200220062010201420182022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Valparaiso Porter Co Muni AP meeting 30 C (86 F).
First to last qualifying date each year at Valparaiso Porter Co Muni AP
YearFirst dateLast date
19981998-05-141998-09-26
19991999-05-291999-09-26
20002000-05-062000-09-19
20012001-05-032001-09-07
20022002-04-152002-09-30
20032003-06-182003-08-28
20042004-04-182004-09-23
20052005-06-052005-09-22
20062006-05-292006-08-04
20072007-05-012007-10-08
20082008-06-052008-09-02
20092009-06-192009-08-16
20102010-05-232010-10-09
20112011-05-102011-09-03
20122012-03-212012-09-04
20132013-05-142013-09-12
20142014-05-082014-09-05
20152015-05-072015-09-08
20162016-05-242016-09-25
20172017-05-162017-09-26
20182018-05-012018-10-09
20192019-05-182019-10-01
20202020-05-242020-09-03
20212021-05-222021-09-27
20222022-05-102022-09-21
20232023-05-292023-10-03
20242024-05-202024-09-21
20252025-05-152025-10-04

Every Fixed Threshold

Fixed thresholds at Valparaiso Porter Co Muni AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2867201857
35 C (95 F): Days161120122
90 F (32.2 C): Days2835201829
100 F (37.8 C): Days2420124
0 C (32 F): Ice days (max2875201448
0 C (32 F): Frost days (min281432013129
-10 C (14 F): Days with min2855201433
-20 C (-4 F): Days with min221420141
20 C (68 F): Tropical nights (min2836201829
25 C (77 F): Days with min6220111
10 mm (0.39 in): Days with 10 mm or more rain2736200125
25 mm (0.98 in): Days with 25 mm or more rain271220137
50 mm (1.97 in): Days with 50 mm or more rain16320231

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1998.

Download the Data

  • Data for Valparaiso Porter Co Muni 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).