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Built 2026-10-19 (19 October 2026)

Slidell AP Threshold Days by Year (USW00053865)

16 fixed thresholds counted per year at Slidell AP (USW00053865): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Slidell AP Thresholds

  • Slidell AP: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 2021 with 58.
  • Slidell AP: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 2021 with 30.
  • Slidell AP: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1991 with 14.
  • Slidell AP: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 2022 with 162.
  • 16 fixed thresholds have at least one qualifying day at Slidell AP.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Slidell AP Days per year at Slidell AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 2022. 0501001502001995: 1281996: 1281997: 1161998: 1391999: 1482000: 1332001: 1242002: 1312003: 1212004: 1352005: 1322006: 1422007: 1332008: 1162009: 1362010: 1472011: 1402012: 1322013: 1222014: 1282015: 1362016: 1392017: 1282018: 1542019: 1502020: 1332021: 1332022: 1622023: 1582024: 1612025: 1542026: 13319951999200320072011201520192023
Days per year at Slidell AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 2022.
Days at or above 30 C (86 F) per year at Slidell AP
YearDaysDecade average
1995128131.8
1996128131.8
1997116131.8
1998139131.8
1999148131.8
2000133130.3
2001124130.3
2002131130.3
2003121130.3
2004135130.3
2005132130.3
2006142130.3
2007133130.3
2008116130.3
2009136130.3
2010147137.6
2011140137.6
2012132137.6
2013122137.6
2014128137.6
2015136137.6
2016139137.6
2017128137.6
2018154137.6
2019150137.6
2020133147.7
2021133147.7
2022162147.7
2023158147.7
2024161147.7
2025154147.7
2026133147.7
First to last qualifying date each year at Slidell AP For each year, a bar from the first to the last day at Slidell AP meeting 30 C (86 F). 1995: 5 May 1995 to 11 October 19951996: 4 May 1996 to 6 November 19961997: 20 May 1997 to 12 October 19971998: 7 May 1998 to 20 October 19981999: 9 April 1999 to 17 October 19992000: 8 May 2000 to 28 October 20002001: 13 April 2001 to 24 October 20012002: 27 April 2002 to 7 October 20022003: 1 May 2003 to 21 October 20032004: 8 May 2004 to 26 October 20042005: 11 May 2005 to 19 October 20052006: 17 April 2006 to 18 October 20062007: 29 April 2007 to 18 October 20072008: 11 April 2008 to 5 October 20082009: 5 May 2009 to 15 October 20092010: 25 April 2010 to 27 October 20102011: 8 April 2011 to 17 October 20112012: 15 April 2012 to 14 October 20122013: 18 May 2013 to 14 October 20132014: 28 April 2014 to 13 October 20142015: 17 March 2015 to 16 October 20152016: 10 May 2016 to 4 November 20162017: 22 March 2017 to 14 October 20172018: 6 May 2018 to 19 October 20182019: 10 April 2019 to 15 October 20192020: 23 March 2020 to 23 October 20202021: 9 April 2021 to 25 October 20212022: 6 April 2022 to 8 November 20222023: 25 March 2023 to 23 October 20232024: 19 April 2024 to 6 November 20242025: 26 March 2025 to 19 October 20252026: 27 April 2026 to 14 October 202619951999200320072011201520192023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Slidell AP meeting 30 C (86 F).
First to last qualifying date each year at Slidell AP
YearFirst dateLast date
19951995-05-051995-10-11
19961996-05-041996-11-06
19971997-05-201997-10-12
19981998-05-071998-10-20
19991999-04-091999-10-17
20002000-05-082000-10-28
20012001-04-132001-10-24
20022002-04-272002-10-07
20032003-05-012003-10-21
20042004-05-082004-10-26
20052005-05-112005-10-19
20062006-04-172006-10-18
20072007-04-292007-10-18
20082008-04-112008-10-05
20092009-05-052009-10-15
20102010-04-252010-10-27
20112011-04-082011-10-17
20122012-04-152012-10-14
20132013-05-182013-10-14
20142014-04-282014-10-13
20152015-03-172015-10-16
20162016-05-102016-11-04
20172017-03-222017-10-14
20182018-05-062018-10-19
20192019-04-102019-10-15
20202020-03-232020-10-23
20212021-04-092021-10-25
20222022-04-062022-11-08
20232023-03-252023-10-23
20242024-04-192024-11-06
20252025-03-262025-10-19
20262026-04-272026-10-14

Every Fixed Threshold

Fixed thresholds at Slidell AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days321622022133
35 C (95 F): Days3169202320
40 C (104 F): Days1320233
90 F (32.2 C): Days32119202399
100 F (37.8 C): Days101420232
0 C (32 F): Ice days (max1119961
0 C (32 F): Frost days (min3246201022
-10 C (14 F): Days with min1120251
20 C (68 F): Tropical nights (min321602024145
25 C (77 F): Days with min3243202315
10 mm (0.39 in): Days with 10 mm or more rain3758202129
25 mm (0.98 in): Days with 25 mm or more rain3730202117
50 mm (1.97 in): Days with 50 mm or more rain371419914
100 mm (3.94 in): Days with 100 mm or more rain20419951
200 mm (7.87 in): Days with 200 mm or more rain3219951
10 cm (3.9 in): Days with 10 cm or more snowfall1120251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1995.

Download the Data

  • Data for Slidell 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).