Built 2026-10-18 (18 October 2026)

Joliet Brandon Road Lock/Dam Threshold Days by Year

19 fixed thresholds counted per year at Joliet Brandon Road Lock/Dam (USC00114530): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Joliet Brandon Road Lock/Dam Thresholds

  • Joliet Brandon Road Lock/Dam: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 2019 with 44.
  • Joliet Brandon Road Lock/Dam: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1972 with 16.
  • Joliet Brandon Road Lock/Dam: days with 50 mm (1.97 in) or more of precipitation in 66 years, most in 1954 with 4.
  • Joliet Brandon Road Lock/Dam: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1983 with 69.
  • 19 fixed thresholds have at least one qualifying day at Joliet Brandon Road Lock/Dam.
50 years with a qualifying day
Days at or above 30 C (86 F) per year at Joliet Brandon Road Lock/Dam Days per year at Joliet Brandon Road Lock/Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1983. 0204060801976: 391977: 531978: 511979: 371980: 471981: 211982: 211983: 691984: 521985: 311986: 541987: 491988: 651989: 191990: 311991: 691992: 201993: 281994: 361995: 591996: 311997: 321998: 541999: 482000: 242001: 482002: 572003: 272004: 192006: 332007: 532008: 242009: 142010: 492011: 512012: 572013: 312014: 102015: 232016: 382017: 302018: 512019: 302020: 362021: 462022: 292023: 322024: 372025: 512026: 311976198119861991199620012007201220172022
Days per year at Joliet Brandon Road Lock/Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1983.
Days at or above 30 C (86 F) per year at Joliet Brandon Road Lock/Dam
YearDaysDecade average
19763945
19775345
19785145
19793745
19804742.8
19812142.8
19822142.8
19836942.8
19845242.8
19853142.8
19865442.8
19874942.8
19886542.8
19891942.8
19903140.8
19916940.8
19922040.8
19932840.8
19943640.8
19955940.8
19963140.8
19973240.8
19985440.8
19994840.8
20002433.2
20014833.2
20025733.2
20032733.2
20041933.2
20063333.2
20075333.2
20082433.2
20091433.2
20104937
20115137
20125737
20133137
20141037
20152337
20163837
20173037
20185137
20193037
20203637.4
20214637.4
20222937.4
20233237.4
20243737.4
20255137.4
20263137.4
First to last qualifying date each year at Joliet Brandon Road Lock/Dam For each year, a bar from the first to the last day at Joliet Brandon Road Lock/Dam meeting 30 C (86 F). 1976: 21 May 1976 to 3 October 19761977: 17 April 1977 to 5 September 19771978: 27 May 1978 to 21 September 19781979: 9 May 1979 to 12 September 19791980: 23 April 1980 to 23 September 19801981: 8 June 1981 to 14 September 19811982: 26 June 1982 to 19 September 19821983: 9 June 1983 to 20 September 19831984: 19 May 1984 to 22 September 19841985: 10 May 1985 to 21 September 19851986: 30 March 1986 to 28 September 19861987: 21 April 1987 to 28 September 19871988: 29 May 1988 to 23 September 19881989: 31 May 1989 to 30 August 19891990: 25 April 1990 to 28 September 19901991: 13 May 1991 to 15 September 19911992: 2 May 1992 to 26 August 19921993: 10 May 1993 to 28 August 19931994: 27 April 1994 to 17 September 19941995: 8 June 1995 to 8 September 19951996: 18 May 1996 to 6 September 19961997: 20 June 1997 to 6 October 19971998: 15 May 1998 to 28 September 19981999: 29 May 1999 to 27 September 19992000: 2 June 2000 to 20 September 20002001: 5 May 2001 to 8 September 20012002: 16 April 2002 to 30 September 20022003: 19 June 2003 to 29 August 20032004: 7 May 2004 to 15 September 20042006: 28 May 2006 to 4 October 20062007: 15 May 2007 to 9 October 20072008: 6 June 2008 to 3 September 20082009: 20 June 2009 to 18 August 20092010: 24 May 2010 to 10 October 20102011: 11 May 2011 to 4 September 20112012: 20 May 2012 to 5 September 20122013: 15 May 2013 to 20 September 20132014: 9 May 2014 to 6 September 20142015: 11 June 2015 to 9 September 20152016: 25 May 2016 to 26 September 20162017: 3 June 2017 to 27 September 20172018: 15 May 2018 to 4 October 20182019: 20 May 2019 to 2 October 20192020: 25 May 2020 to 29 August 20202021: 23 May 2021 to 28 September 20212022: 11 May 2022 to 21 September 20222023: 31 May 2023 to 3 October 20232024: 22 May 2024 to 22 September 20242025: 16 May 2025 to 4 October 20252026: 28 May 2026 to 13 October 202619761983199019972004201220192026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Joliet Brandon Road Lock/Dam meeting 30 C (86 F).
First to last qualifying date each year at Joliet Brandon Road Lock/Dam
YearFirst dateLast date
19761976-05-211976-10-03
19771977-04-171977-09-05
19781978-05-271978-09-21
19791979-05-091979-09-12
19801980-04-231980-09-23
19811981-06-081981-09-14
19821982-06-261982-09-19
19831983-06-091983-09-20
19841984-05-191984-09-22
19851985-05-101985-09-21
19861986-03-301986-09-28
19871987-04-211987-09-28
19881988-05-291988-09-23
19891989-05-311989-08-30
19901990-04-251990-09-28
19911991-05-131991-09-15
19921992-05-021992-08-26
19931993-05-101993-08-28
19941994-04-271994-09-17
19951995-06-081995-09-08
19961996-05-181996-09-06
19971997-06-201997-10-06
19981998-05-151998-09-28
19991999-05-291999-09-27
20002000-06-022000-09-20
20012001-05-052001-09-08
20022002-04-162002-09-30
20032003-06-192003-08-29
20042004-05-072004-09-15
20062006-05-282006-10-04
20072007-05-152007-10-09
20082008-06-062008-09-03
20092009-06-202009-08-18
20102010-05-242010-10-10
20112011-05-112011-09-04
20122012-05-202012-09-05
20132013-05-152013-09-20
20142014-05-092014-09-06
20152015-06-112015-09-09
20162016-05-252016-09-26
20172017-06-032017-09-27
20182018-05-152018-10-04
20192019-05-202019-10-02
20202020-05-252020-08-29
20212021-05-232021-09-28
20222022-05-112022-09-21
20232023-05-312023-10-03
20242024-05-222024-09-22
20252025-05-162025-10-04
20262026-05-282026-10-13

Every Fixed Threshold

Fixed thresholds at Joliet Brandon Road Lock/Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5069198331
35 C (95 F): Days312319881
40 C (104 F): Days1119881
90 F (32.2 C): Days5048198814
100 F (37.8 C): Days9719883
0 C (32 F): Ice days (max5072201429
0 C (32 F): Frost days (min49160198072
-10 C (14 F): Days with min4966197821
-20 C (-4 F): Days with min432419793
-30 C (-22 F): Days with min4219852
20 C (68 F): Tropical nights (min4939199531
25 C (77 F): Days with min7419883
10 mm (0.39 in): Days with 10 mm or more rain8144201930
25 mm (0.98 in): Days with 25 mm or more rain8116197216
50 mm (1.97 in): Days with 50 mm or more rain66419543
100 mm (3.94 in): Days with 100 mm or more rain8119571
200 mm (7.87 in): Days with 200 mm or more rain1119961
10 cm (3.9 in): Days with 10 cm or more snowfall30519511
25 cm (9.8 in): Days with 25 cm or more snowfall1119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Joliet Brandon Road Lock/Dam 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-16).