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Built 2026-10-19 (19 October 2026)

St Louis Spirit of St Louis AP Threshold Days by Year (USW00003966)

17 fixed thresholds counted per year at St Louis Spirit of St Louis AP (USW00003966): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Louis Spirit of St Louis AP Thresholds

  • St Louis Spirit of St Louis AP: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 2018 with 108.
  • St Louis Spirit of St Louis AP: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 2012 with 39.
  • St Louis Spirit of St Louis AP: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 2018 with 78.
  • St Louis Spirit of St Louis AP: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 2014 with 34.
  • 17 fixed thresholds have at least one qualifying day at St Louis Spirit of St Louis AP.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at St Louis Spirit of St Louis AP Days per year at St Louis Spirit of St Louis AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 2018. 0501001501988: 911989: 621990: 731991: 881992: 601994: 761998: 771999: 672000: 762001: 712002: 942003: 612004: 482005: 882006: 882007: 1052008: 572009: 572010: 982011: 922012: 982013: 692014: 692015: 632016: 902017: 792018: 1082019: 862020: 742021: 812022: 752023: 732024: 722025: 882026: 94198819922000200420082012201620202024
Days per year at St Louis Spirit of St Louis AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 2018.
Days at or above 30 C (86 F) per year at St Louis Spirit of St Louis AP
YearDaysDecade average
19889176.5
19896276.5
19907373.5
19918873.5
19926073.5
19947673.5
19987773.5
19996773.5
20007674.5
20017174.5
20029474.5
20036174.5
20044874.5
20058874.5
20068874.5
200710574.5
20085774.5
20095774.5
20109885.2
20119285.2
20129885.2
20136985.2
20146985.2
20156385.2
20169085.2
20177985.2
201810885.2
20198685.2
20207479.6
20218179.6
20227579.6
20237379.6
20247279.6
20258879.6
20269479.6
First to last qualifying date each year at St Louis Spirit of St Louis AP For each year, a bar from the first to the last day at St Louis Spirit of St Louis AP meeting 30 C (86 F). 1988: 12 May 1988 to 17 October 19881989: 24 April 1989 to 15 October 19891990: 23 April 1990 to 6 October 19901991: 26 March 1991 to 15 September 19911992: 10 April 1992 to 14 October 19921994: 14 April 1994 to 1 October 19941998: 14 May 1998 to 29 September 19981999: 4 June 1999 to 27 September 19992000: 19 April 2000 to 3 October 20002001: 8 April 2001 to 13 September 20012002: 15 April 2002 to 2 October 20022003: 14 April 2003 to 20 October 20032004: 16 April 2004 to 5 September 20042005: 10 May 2005 to 5 October 20052006: 13 April 2006 to 4 October 20062007: 29 April 2007 to 8 October 20072008: 30 May 2008 to 23 September 20082009: 23 April 2009 to 27 August 20092010: 31 March 2010 to 10 October 20102011: 3 April 2011 to 29 September 20112012: 14 March 2012 to 13 September 20122013: 17 April 2013 to 4 October 20132014: 5 May 2014 to 1 October 20142015: 7 June 2015 to 21 October 20152016: 25 April 2016 to 17 October 20162017: 19 April 2017 to 14 October 20172018: 12 April 2018 to 8 October 20182019: 16 April 2019 to 2 October 20192020: 7 April 2020 to 14 October 20202021: 3 May 2021 to 10 October 20212022: 22 April 2022 to 21 September 20222023: 7 May 2023 to 3 October 20232024: 14 April 2024 to 12 October 20242025: 13 April 2025 to 17 October 20252026: 10 March 2026 to 13 October 20261988199420022007201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Louis Spirit of St Louis AP meeting 30 C (86 F).
First to last qualifying date each year at St Louis Spirit of St Louis AP
YearFirst dateLast date
19881988-05-121988-10-17
19891989-04-241989-10-15
19901990-04-231990-10-06
19911991-03-261991-09-15
19921992-04-101992-10-14
19941994-04-141994-10-01
19981998-05-141998-09-29
19991999-06-041999-09-27
20002000-04-192000-10-03
20012001-04-082001-09-13
20022002-04-152002-10-02
20032003-04-142003-10-20
20042004-04-162004-09-05
20052005-05-102005-10-05
20062006-04-132006-10-04
20072007-04-292007-10-08
20082008-05-302008-09-23
20092009-04-232009-08-27
20102010-03-312010-10-10
20112011-04-032011-09-29
20122012-03-142012-09-13
20132013-04-172013-10-04
20142014-05-052014-10-01
20152015-06-072015-10-21
20162016-04-252016-10-17
20172017-04-192017-10-14
20182018-04-122018-10-08
20192019-04-162019-10-02
20202020-04-072020-10-14
20212021-05-032021-10-10
20222022-04-222022-09-21
20232023-05-072023-10-03
20242024-04-142024-10-12
20252025-04-132025-10-17
20262026-03-102026-10-13

Every Fixed Threshold

Fixed thresholds at St Louis Spirit of St Louis AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days35108201894
35 C (95 F): Days3539201217
40 C (104 F): Days31020121
90 F (32.2 C): Days3578201857
100 F (37.8 C): Days221920122
0 C (32 F): Ice days (max3534201414
0 C (32 F): Frost days (min35129201356
-10 C (14 F): Days with min3533200016
-20 C (-4 F): Days with min161019892
-30 C (-22 F): Days with min1119891
20 C (68 F): Tropical nights (min3570201866
25 C (77 F): Days with min32820114
10 mm (0.39 in): Days with 10 mm or more rain3444200927
25 mm (0.98 in): Days with 25 mm or more rain3417200810
50 mm (1.97 in): Days with 50 mm or more rain25620241
100 mm (3.94 in): Days with 100 mm or more rain4120001
10 cm (3.9 in): Days with 10 cm or more snowfall3219891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for St Louis Spirit of St Louis 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 (2026-10-17).