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Built 2026-10-19 (19 October 2026)

Champaign Urbana Willard AP Threshold Days by Year (USW00094870)

13 fixed thresholds counted per year at Champaign Urbana Willard AP (USW00094870): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Champaign Urbana Willard AP Thresholds

  • Champaign Urbana Willard AP: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 2012 with 81.
  • Champaign Urbana Willard AP: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 2012 with 48.
  • Champaign Urbana Willard AP: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 2010 with 59.
  • Champaign Urbana Willard AP: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 2018 with 139.
  • 13 fixed thresholds have at least one qualifying day at Champaign Urbana Willard AP.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at Champaign Urbana Willard AP Days per year at Champaign Urbana Willard AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 2012. 02550751001998: 481999: 492000: 322001: 482002: 642003: 302004: 292005: 672006: 372007: 732008: 322009: 162010: 742011: 672012: 812013: 502014: 362015: 492016: 582017: 562018: 672019: 512020: 472021: 632022: 572023: 542024: 532025: 771998200120042007201020132016201920222025
Days per year at Champaign Urbana Willard AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 2012.
Days at or above 30 C (86 F) per year at Champaign Urbana Willard AP
YearDaysDecade average
19984848.5
19994948.5
20003242.8
20014842.8
20026442.8
20033042.8
20042942.8
20056742.8
20063742.8
20077342.8
20083242.8
20091642.8
20107458.9
20116758.9
20128158.9
20135058.9
20143658.9
20154958.9
20165858.9
20175658.9
20186758.9
20195158.9
20204758.5
20216358.5
20225758.5
20235458.5
20245358.5
20257758.5
First to last qualifying date each year at Champaign Urbana Willard AP For each year, a bar from the first to the last day at Champaign Urbana Willard AP meeting 30 C (86 F). 1998: 14 May 1998 to 29 September 19981999: 11 May 1999 to 28 September 19992000: 11 May 2000 to 3 October 20002001: 8 April 2001 to 8 September 20012002: 15 April 2002 to 2 October 20022003: 14 April 2003 to 24 September 20032004: 17 April 2004 to 23 September 20042005: 8 May 2005 to 5 October 20052006: 24 May 2006 to 4 October 20062007: 30 April 2007 to 8 October 20072008: 30 May 2008 to 12 October 20082009: 22 May 2009 to 17 August 20092010: 14 April 2010 to 10 October 20102011: 10 May 2011 to 7 October 20112012: 21 March 2012 to 13 September 20122013: 14 May 2013 to 4 October 20132014: 7 May 2014 to 5 September 20142015: 5 May 2015 to 23 September 20152016: 18 April 2016 to 17 October 20162017: 14 May 2017 to 14 October 20172018: 1 May 2018 to 9 October 20182019: 18 May 2019 to 2 October 20192020: 24 May 2020 to 8 September 20202021: 21 May 2021 to 10 October 20212022: 10 May 2022 to 21 September 20222023: 20 April 2023 to 4 October 20232024: 2 May 2024 to 12 October 20242025: 14 May 2025 to 6 October 20251998200220062010201420182022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Champaign Urbana Willard AP meeting 30 C (86 F).
First to last qualifying date each year at Champaign Urbana Willard AP
YearFirst dateLast date
19981998-05-141998-09-29
19991999-05-111999-09-28
20002000-05-112000-10-03
20012001-04-082001-09-08
20022002-04-152002-10-02
20032003-04-142003-09-24
20042004-04-172004-09-23
20052005-05-082005-10-05
20062006-05-242006-10-04
20072007-04-302007-10-08
20082008-05-302008-10-12
20092009-05-222009-08-17
20102010-04-142010-10-10
20112011-05-102011-10-07
20122012-03-212012-09-13
20132013-05-142013-10-04
20142014-05-072014-09-05
20152015-05-052015-09-23
20162016-04-182016-10-17
20172017-05-142017-10-14
20182018-05-012018-10-09
20192019-05-182019-10-02
20202020-05-242020-09-08
20212021-05-212021-10-10
20222022-05-102022-09-21
20232023-04-202023-10-04
20242024-05-022024-10-12
20252025-05-142025-10-06

Every Fixed Threshold

Fixed thresholds at Champaign Urbana Willard AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2881201277
35 C (95 F): Days211720129
90 F (32.2 C): Days2848201240
100 F (37.8 C): Days3420122
0 C (32 F): Ice days (max2859201038
0 C (32 F): Frost days (min281392018117
-10 C (14 F): Days with min2847200031
-20 C (-4 F): Days with min221120145
20 C (68 F): Tropical nights (min2843202543
25 C (77 F): Days with min5119981
10 mm (0.39 in): Days with 10 mm or more rain2743200914
25 mm (0.98 in): Days with 25 mm or more rain271520153
50 mm (1.97 in): Days with 50 mm or more rain18420083

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 Champaign Urbana Willard 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).