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Built 2026-10-19 (19 October 2026)

Bolivar Treatment Works Threshold Days by Year (ASN00023081)

3 fixed thresholds counted per year at Bolivar Treatment Works (ASN00023081): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bolivar Treatment Works Thresholds

  • Bolivar Treatment Works: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1974 with 20.
  • Bolivar Treatment Works: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 2011 with 4.
  • Bolivar Treatment Works: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1974 with 1.
  • 3 fixed thresholds have at least one qualifying day at Bolivar Treatment Works.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bolivar Treatment Works Days per year at Bolivar Treatment Works with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1974. 051015201973: 141974: 201975: 81976: 41977: 121978: 191979: 161980: 91981: 121982: 71983: 131984: 71985: 121987: 201988: 131990: 71996: 71998: 111999: 122000: 152001: 122002: 72003: 102004: 122005: 132006: 72007: 82008: 72009: 112010: 102011: 122012: 112016: 152017: 92019: 62020: 112021: 122022: 101973197719811985199620012005200920162021
Days per year at Bolivar Treatment Works with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Bolivar Treatment Works
YearDaysDecade average
19731413.3
19742013.3
1975813.3
1976413.3
19771213.3
19781913.3
19791613.3
1980911.6
19811211.6
1982711.6
19831311.6
1984711.6
19851211.6
19872011.6
19881311.6
199079.3
199679.3
1998119.3
1999129.3
20001510.2
20011210.2
2002710.2
20031010.2
20041210.2
20051310.2
2006710.2
2007810.2
2008710.2
20091110.2
20101010.5
20111210.5
20121110.5
20161510.5
2017910.5
2019610.5
20201111
20211211
20221011
First to last qualifying date each year at Bolivar Treatment Works For each year, a bar from the first to the last day at Bolivar Treatment Works meeting 10 mm (0.39 in). 1973: 30 January 1973 to 30 December 19731974: 28 January 1974 to 24 October 19741975: 20 March 1975 to 24 October 19751976: 26 February 1976 to 23 December 19761977: 14 January 1977 to 2 December 19771978: 9 April 1978 to 4 December 19781979: 17 January 1979 to 30 December 19791980: 18 April 1980 to 5 November 19801981: 27 January 1981 to 10 November 19811982: 25 January 1982 to 20 June 19821983: 3 March 1983 to 15 October 19831984: 1 January 1984 to 10 November 19841985: 16 March 1985 to 9 December 19851987: 25 January 1987 to 2 December 19871988: 24 January 1988 to 21 December 19881990: 11 January 1990 to 10 December 19901996: 1 January 1996 to 5 October 19961998: 12 April 1998 to 11 November 19981999: 8 January 1999 to 3 December 19992000: 20 February 2000 to 18 November 20002001: 17 March 2001 to 23 November 20012002: 21 January 2002 to 26 November 20022003: 20 February 2003 to 31 October 20032004: 29 March 2004 to 10 December 20042005: 10 June 2005 to 16 December 20052006: 2 January 2006 to 22 December 20062007: 20 January 2007 to 22 December 20072008: 27 April 2008 to 13 December 20082009: 3 March 2009 to 22 September 20092010: 6 April 2010 to 8 December 20102011: 14 January 2011 to 18 December 20112012: 8 January 2012 to 11 October 20122016: 2 February 2016 to 28 December 20162017: 14 January 2017 to 1 December 20172019: 10 May 2019 to 20 September 20192020: 31 January 2020 to 7 October 20202021: 26 January 2021 to 23 November 20212022: 28 February 2022 to 19 November 202219731978198319902001200620112020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bolivar Treatment Works meeting 10 mm (0.39 in).
First to last qualifying date each year at Bolivar Treatment Works
YearFirst dateLast date
19731973-01-301973-12-30
19741974-01-281974-10-24
19751975-03-201975-10-24
19761976-02-261976-12-23
19771977-01-141977-12-02
19781978-04-091978-12-04
19791979-01-171979-12-30
19801980-04-181980-11-05
19811981-01-271981-11-10
19821982-01-251982-06-20
19831983-03-031983-10-15
19841984-01-011984-11-10
19851985-03-161985-12-09
19871987-01-251987-12-02
19881988-01-241988-12-21
19901990-01-111990-12-10
19961996-01-011996-10-05
19981998-04-121998-11-11
19991999-01-081999-12-03
20002000-02-202000-11-18
20012001-03-172001-11-23
20022002-01-212002-11-26
20032003-02-202003-10-31
20042004-03-292004-12-10
20052005-06-102005-12-16
20062006-01-022006-12-22
20072007-01-202007-12-22
20082008-04-272008-12-13
20092009-03-032009-09-22
20102010-04-062010-12-08
20112011-01-142011-12-18
20122012-01-082012-10-11
20162016-02-022016-12-28
20172017-01-142017-12-01
20192019-05-102019-09-20
20202020-01-312020-10-07
20212021-01-262021-11-23
20222022-02-282022-11-19

Every Fixed Threshold

Fixed thresholds at Bolivar Treatment Works
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3820197410
25 mm (0.98 in): Days with 25 mm or more rain23420111
50 mm (1.97 in): Days with 50 mm or more rain5119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Bolivar Treatment Works 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).