Built 2026-10-19 (19 October 2026)

Brookport Dam 52 Threshold Days by Year (USC00110993)

17 fixed thresholds counted per year at Brookport Dam 52 (USC00110993): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brookport Dam 52 Thresholds

  • Brookport Dam 52: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1950 with 61.
  • Brookport Dam 52: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1950 with 23.
  • Brookport Dam 52: days with 50 mm (1.97 in) or more of precipitation in 77 years, most in 1958 with 6.
  • Brookport Dam 52: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 2014 with 110.
  • 17 fixed thresholds have at least one qualifying day at Brookport Dam 52.
45 years with a qualifying day
Days at or above 30 C (86 F) per year at Brookport Dam 52 Days per year at Brookport Dam 52 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 114 in 1987. 0501001501963: 951964: 891965: 871966: 701967: 571968: 811969: 901970: 811971: 821972: 831973: 961974: 601975: 821976: 631977: 1011979: 661980: 1071981: 681982: 771983: 911984: 841985: 801986: 1001987: 1141988: 881989: 601990: 601992: 361993: 741994: 551995: 621996: 581997: 601998: 1051999: 922000: 932002: 922003: 552004: 462005: 912007: 1072008: 682009: 412010: 982014: 68196319681973197919841989199520002007
Days per year at Brookport Dam 52 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 114 in 1987.
Days at or above 30 C (86 F) per year at Brookport Dam 52
YearDaysDecade average
19639581.3
19648981.3
19658781.3
19667081.3
19675781.3
19688181.3
19699081.3
19708179.3
19718279.3
19728379.3
19739679.3
19746079.3
19758279.3
19766379.3
197710179.3
19796679.3
198010786.9
19816886.9
19827786.9
19839186.9
19848486.9
19858086.9
198610086.9
198711486.9
19888886.9
19896086.9
19906066.9
19923666.9
19937466.9
19945566.9
19956266.9
19965866.9
19976066.9
199810566.9
19999266.9
20009374.1
20029274.1
20035574.1
20044674.1
20059174.1
200710774.1
20086874.1
20094174.1
20109883
20146883
First to last qualifying date each year at Brookport Dam 52 For each year, a bar from the first to the last day at Brookport Dam 52 meeting 30 C (86 F). 1963: 21 April 1963 to 27 October 19631964: 17 May 1964 to 20 September 19641965: 7 May 1965 to 20 September 19651966: 23 May 1966 to 12 September 19661967: 13 April 1967 to 5 October 19671968: 2 May 1968 to 1 October 19681969: 5 May 1969 to 4 October 19691970: 20 May 1970 to 23 September 19701971: 19 April 1971 to 3 October 19711972: 19 May 1972 to 20 September 19721973: 3 June 1973 to 10 October 19731974: 18 May 1974 to 12 September 19741975: 19 May 1975 to 13 October 19751976: 8 June 1976 to 19 September 19761977: 15 April 1977 to 18 September 19771979: 10 May 1979 to 12 September 19791980: 28 May 1980 to 10 October 19801981: 5 June 1981 to 5 October 19811982: 13 May 1982 to 15 September 19821983: 10 June 1983 to 18 September 19831984: 25 May 1984 to 22 September 19841985: 12 May 1985 to 13 October 19851986: 30 April 1986 to 2 October 19861987: 20 April 1987 to 26 September 19871988: 15 May 1988 to 22 September 19881989: 23 April 1989 to 13 October 19891990: 7 June 1990 to 7 September 19901992: 15 June 1992 to 14 September 19921993: 7 June 1993 to 15 September 19931994: 5 June 1994 to 28 August 19941995: 7 June 1995 to 15 September 19951996: 23 May 1996 to 17 October 19961997: 19 June 1997 to 20 September 19971998: 14 May 1998 to 30 September 19981999: 4 June 1999 to 11 October 19992000: 22 May 2000 to 26 October 20002002: 31 May 2002 to 3 October 20022003: 13 April 2003 to 16 September 20032004: 7 May 2004 to 15 September 20042005: 11 May 2005 to 19 October 20052007: 1 May 2007 to 9 October 20072008: 1 June 2008 to 29 September 20082009: 25 May 2009 to 29 August 20092010: 6 May 2010 to 12 October 20102014: 5 May 2014 to 3 October 201419631969197519821988199520022009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brookport Dam 52 meeting 30 C (86 F).
First to last qualifying date each year at Brookport Dam 52
YearFirst dateLast date
19631963-04-211963-10-27
19641964-05-171964-09-20
19651965-05-071965-09-20
19661966-05-231966-09-12
19671967-04-131967-10-05
19681968-05-021968-10-01
19691969-05-051969-10-04
19701970-05-201970-09-23
19711971-04-191971-10-03
19721972-05-191972-09-20
19731973-06-031973-10-10
19741974-05-181974-09-12
19751975-05-191975-10-13
19761976-06-081976-09-19
19771977-04-151977-09-18
19791979-05-101979-09-12
19801980-05-281980-10-10
19811981-06-051981-10-05
19821982-05-131982-09-15
19831983-06-101983-09-18
19841984-05-251984-09-22
19851985-05-121985-10-13
19861986-04-301986-10-02
19871987-04-201987-09-26
19881988-05-151988-09-22
19891989-04-231989-10-13
19901990-06-071990-09-07
19921992-06-151992-09-14
19931993-06-071993-09-15
19941994-06-051994-08-28
19951995-06-071995-09-15
19961996-05-231996-10-17
19971997-06-191997-09-20
19981998-05-141998-09-30
19991999-06-041999-10-11
20002000-05-222000-10-26
20022002-05-312002-10-03
20032003-04-132003-09-16
20042004-05-072004-09-15
20052005-05-112005-10-19
20072007-05-012007-10-09
20082008-06-012008-09-29
20092009-05-252009-08-29
20102010-05-062010-10-12
20142014-05-052014-10-03

Every Fixed Threshold

Fixed thresholds at Brookport Dam 52
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days45114198768
35 C (95 F): Days424619801
40 C (104 F): Days2219662
90 F (32.2 C): Days4585198031
100 F (37.8 C): Days18919804
0 C (32 F): Ice days (max4527196325
0 C (32 F): Frost days (min461102014110
-10 C (14 F): Days with min4635196322
-20 C (-4 F): Days with min13619632
20 C (68 F): Tropical nights (min4689200246
25 C (77 F): Days with min33919805
10 mm (0.39 in): Days with 10 mm or more rain8161195033
25 mm (0.98 in): Days with 25 mm or more rain8123195012
50 mm (1.97 in): Days with 50 mm or more rain77619582
100 mm (3.94 in): Days with 100 mm or more rain13219421
10 cm (3.9 in): Days with 10 cm or more snowfall24419851
25 cm (9.8 in): Days with 25 cm or more snowfall2119941

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Brookport Dam 52 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).