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Built 2026-10-19 (19 October 2026)

Big Water Threshold Days by Year (USC00420688)

14 fixed thresholds counted per year at Big Water (USC00420688): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Big Water Thresholds

  • Big Water: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 2000 with 146.
  • Big Water: days with a maximum temperature at or above 35 C (95 F) in 26 years, most in 2000 with 87.
  • Big Water: days with a maximum temperature at or above 40 C (104 F) in 26 years, most in 1990 with 22.
  • Big Water: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 2000 with 127.
  • 14 fixed thresholds have at least one qualifying day at Big Water.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Big Water Days per year at Big Water with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 146 in 2000. 0501001501987: 1451989: 1421990: 1211991: 1361993: 1281997: 1241998: 1081999: 1122000: 1462001: 1432008: 1152009: 1152011: 1082012: 1242013: 1102014: 1182015: 1002016: 1072017: 1112018: 1372021: 1242022: 932023: 1062024: 1352025: 1252026: 128198719911998200120112014201720222025
Days per year at Big Water with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 146 in 2000.
Days at or above 30 C (86 F) per year at Big Water
YearDaysDecade average
1987145143.5
1989142143.5
1990121121.5
1991136121.5
1993128121.5
1997124121.5
1998108121.5
1999112121.5
2000146129.8
2001143129.8
2008115129.8
2009115129.8
2011108114.4
2012124114.4
2013110114.4
2014118114.4
2015100114.4
2016107114.4
2017111114.4
2018137114.4
2021124118.5
202293118.5
2023106118.5
2024135118.5
2025125118.5
2026128118.5
First to last qualifying date each year at Big Water For each year, a bar from the first to the last day at Big Water meeting 30 C (86 F). 1987: 16 April 1987 to 12 October 19871989: 8 April 1989 to 15 October 19891990: 14 April 1990 to 29 September 19901991: 9 May 1991 to 18 October 19911993: 29 April 1993 to 5 October 19931997: 4 May 1997 to 7 October 19971998: 23 April 1998 to 14 October 19981999: 8 May 1999 to 13 October 19992000: 26 April 2000 to 8 October 20002001: 18 April 2001 to 5 October 20012008: 30 April 2008 to 2 October 20082009: 23 April 2009 to 30 September 20092011: 8 May 2011 to 2 October 20112012: 23 April 2012 to 5 October 20122013: 30 April 2013 to 22 September 20132014: 4 May 2014 to 27 September 20142015: 1 May 2015 to 3 October 20152016: 6 May 2016 to 16 October 20162017: 6 May 2017 to 22 September 20172018: 8 April 2018 to 1 October 20182021: 5 April 2021 to 26 September 20212022: 7 May 2022 to 1 October 20222023: 12 April 2023 to 29 September 20232024: 23 April 2024 to 13 October 20242025: 11 April 2025 to 4 October 20252026: 9 May 2026 to 9 October 20261987199320002011201520212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Big Water meeting 30 C (86 F).
First to last qualifying date each year at Big Water
YearFirst dateLast date
19871987-04-161987-10-12
19891989-04-081989-10-15
19901990-04-141990-09-29
19911991-05-091991-10-18
19931993-04-291993-10-05
19971997-05-041997-10-07
19981998-04-231998-10-14
19991999-05-081999-10-13
20002000-04-262000-10-08
20012001-04-182001-10-05
20082008-04-302008-10-02
20092009-04-232009-09-30
20112011-05-082011-10-02
20122012-04-232012-10-05
20132013-04-302013-09-22
20142014-05-042014-09-27
20152015-05-012015-10-03
20162016-05-062016-10-16
20172017-05-062017-09-22
20182018-04-082018-10-01
20212021-04-052021-09-26
20222022-05-072022-10-01
20232023-04-122023-09-29
20242024-04-232024-10-13
20252025-04-112025-10-04
20262026-05-092026-10-09

Every Fixed Threshold

Fixed thresholds at Big Water
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days261462000128
35 C (95 F): Days2687200079
40 C (104 F): Days2622199024
90 F (32.2 C): Days261272000109
100 F (37.8 C): Days2648199046
110 F (43.3 C): Days3419892
0 C (32 F): Ice days (max101120138
0 C (32 F): Frost days (min25138202246
-10 C (14 F): Days with min182419895
20 C (68 F): Tropical nights (min2546202448
25 C (77 F): Days with min16520218
10 mm (0.39 in): Days with 10 mm or more rain221020134
25 mm (0.98 in): Days with 25 mm or more rain7219901
10 cm (3.9 in): Days with 10 cm or more snowfall4219871

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

  • Data for Big Water 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).