Built 2026-10-19 (19 October 2026)

Lafayette Purdue UNIV AP Threshold Days by Year (USW00014835)

18 fixed thresholds counted per year at Lafayette Purdue UNIV AP (USW00014835): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lafayette Purdue UNIV AP Thresholds

  • Lafayette Purdue UNIV AP: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1950 with 41.
  • Lafayette Purdue UNIV AP: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1952 with 17.
  • Lafayette Purdue UNIV AP: days with a maximum temperature at or above 30 C (86 F) in 59 years, most in 1983 with 83.
  • Lafayette Purdue UNIV AP: days with a maximum temperature at or above 90 F (32.2 C) in 59 years, most in 1983 with 62.
  • 18 fixed thresholds have at least one qualifying day at Lafayette Purdue UNIV AP.
59 years with a qualifying day
Days at or above 30 C (86 F) per year at Lafayette Purdue UNIV AP Days per year at Lafayette Purdue UNIV AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 83 in 1983. 02550751001944: 761945: 361964: 571965: 261966: 501968: 391969: 461971: 481972: 491973: 411974: 411975: 501976: 421977: 611978: 591979: 351980: 571981: 261982: 341983: 831984: 531985: 371986: 621987: 691988: 781992: 311993: 461994: 521995: 731996: 531997: 621999: 612000: 302001: 412002: 602003: 252004: 282005: 732006: 382007: 752008: 362009: 242010: 702011: 662012: 662013: 282014: 222015: 242016: 502017: 322018: 622019: 452020: 702021: 682022: 542023: 412024: 482025: 602026: 451944196919761982198819972004201020162022
Days per year at Lafayette Purdue UNIV AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 83 in 1983.
Days at or above 30 C (86 F) per year at Lafayette Purdue UNIV AP
YearDaysDecade average
19447656
19453656
19645743.6
19652643.6
19665043.6
19683943.6
19694643.6
19714847.3
19724947.3
19734147.3
19744147.3
19755047.3
19764247.3
19776147.3
19785947.3
19793547.3
19805755.4
19812655.4
19823455.4
19838355.4
19845355.4
19853755.4
19866255.4
19876955.4
19887855.4
19923154
19934654
19945254
19957354
19965354
19976254
19996154
20003043
20014143
20026043
20032543
20042843
20057343
20063843
20077543
20083643
20092443
20107046.5
20116646.5
20126646.5
20132846.5
20142246.5
20152446.5
20165046.5
20173246.5
20186246.5
20194546.5
20207055.1
20216855.1
20225455.1
20234155.1
20244855.1
20256055.1
20264555.1
First to last qualifying date each year at Lafayette Purdue UNIV AP For each year, a bar from the first to the last day at Lafayette Purdue UNIV AP meeting 30 C (86 F). 1944: 15 May 1944 to 19 September 19441945: 14 June 1945 to 23 September 19451964: 16 May 1964 to 21 September 19641965: 21 May 1965 to 19 September 19651966: 27 May 1966 to 12 September 19661968: 6 June 1968 to 23 September 19681969: 29 May 1969 to 1 September 19691971: 4 June 1971 to 2 October 19711972: 20 May 1972 to 18 September 19721973: 3 June 1973 to 26 September 19731974: 21 May 1974 to 26 August 19741975: 18 May 1975 to 13 October 19751976: 13 May 1976 to 2 October 19761977: 17 April 1977 to 1 September 19771978: 26 May 1978 to 20 September 19781979: 8 May 1979 to 11 September 19791980: 22 April 1980 to 8 October 19801981: 3 June 1981 to 13 September 19811982: 13 May 1982 to 6 October 19821983: 11 June 1983 to 3 October 19831984: 18 May 1984 to 21 September 19841985: 12 May 1985 to 20 September 19851986: 25 April 1986 to 29 September 19861987: 21 April 1987 to 27 September 19871988: 15 May 1988 to 22 September 19881992: 11 May 1992 to 17 September 19921993: 8 May 1993 to 30 August 19931994: 26 April 1994 to 1 October 19941995: 5 June 1995 to 13 September 19951996: 17 May 1996 to 11 September 19961997: 17 June 1997 to 13 October 19971999: 11 May 1999 to 28 September 19992000: 24 May 2000 to 19 September 20002001: 15 May 2001 to 8 September 20012002: 31 May 2002 to 2 October 20022003: 9 May 2003 to 28 August 20032004: 18 April 2004 to 23 September 20042005: 10 May 2005 to 4 October 20052006: 27 May 2006 to 17 September 20062007: 30 April 2007 to 8 October 20072008: 30 May 2008 to 12 October 20082009: 22 May 2009 to 15 September 20092010: 23 May 2010 to 11 October 20102011: 10 May 2011 to 7 October 20112012: 21 March 2012 to 6 September 20122013: 19 May 2013 to 11 September 20132014: 7 May 2014 to 5 September 20142015: 7 June 2015 to 8 September 20152016: 30 May 2016 to 25 September 20162017: 18 May 2017 to 26 September 20172018: 2 May 2018 to 8 October 20182019: 18 May 2019 to 2 October 20192020: 24 May 2020 to 9 September 20202021: 27 April 2021 to 27 September 20212022: 10 May 2022 to 21 September 20222023: 24 May 2023 to 4 October 20232024: 19 May 2024 to 21 September 20242025: 15 May 2025 to 4 October 20252026: 6 June 2026 to 13 October 202619441972198019882000200820162024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lafayette Purdue UNIV AP meeting 30 C (86 F).
First to last qualifying date each year at Lafayette Purdue UNIV AP
YearFirst dateLast date
19441944-05-151944-09-19
19451945-06-141945-09-23
19641964-05-161964-09-21
19651965-05-211965-09-19
19661966-05-271966-09-12
19681968-06-061968-09-23
19691969-05-291969-09-01
19711971-06-041971-10-02
19721972-05-201972-09-18
19731973-06-031973-09-26
19741974-05-211974-08-26
19751975-05-181975-10-13
19761976-05-131976-10-02
19771977-04-171977-09-01
19781978-05-261978-09-20
19791979-05-081979-09-11
19801980-04-221980-10-08
19811981-06-031981-09-13
19821982-05-131982-10-06
19831983-06-111983-10-03
19841984-05-181984-09-21
19851985-05-121985-09-20
19861986-04-251986-09-29
19871987-04-211987-09-27
19881988-05-151988-09-22
19921992-05-111992-09-17
19931993-05-081993-08-30
19941994-04-261994-10-01
19951995-06-051995-09-13
19961996-05-171996-09-11
19971997-06-171997-10-13
19991999-05-111999-09-28
20002000-05-242000-09-19
20012001-05-152001-09-08
20022002-05-312002-10-02
20032003-05-092003-08-28
20042004-04-182004-09-23
20052005-05-102005-10-04
20062006-05-272006-09-17
20072007-04-302007-10-08
20082008-05-302008-10-12
20092009-05-222009-09-15
20102010-05-232010-10-11
20112011-05-102011-10-07
20122012-03-212012-09-06
20132013-05-192013-09-11
20142014-05-072014-09-05
20152015-06-072015-09-08
20162016-05-302016-09-25
20172017-05-182017-09-26
20182018-05-022018-10-08
20192019-05-182019-10-02
20202020-05-242020-09-09
20212021-04-272021-09-27
20222022-05-102022-09-21
20232023-05-242023-10-04
20242024-05-192024-09-21
20252025-05-152025-10-04
20262026-06-062026-10-13

Every Fixed Threshold

Fixed thresholds at Lafayette Purdue UNIV AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5983198345
35 C (95 F): Days443019833
40 C (104 F): Days3219831
90 F (32.2 C): Days5962198319
100 F (37.8 C): Days14820121
0 C (32 F): Ice days (max5963197827
0 C (32 F): Frost days (min58145196963
-10 C (14 F): Days with min5853197816
-20 C (-4 F): Days with min471919775
-30 C (-22 F): Days with min3119721
20 C (68 F): Tropical nights (min5846199537
25 C (77 F): Days with min13419951
10 mm (0.39 in): Days with 10 mm or more rain7441195031
25 mm (0.98 in): Days with 25 mm or more rain741719527
50 mm (1.97 in): Days with 50 mm or more rain51519581
100 mm (3.94 in): Days with 100 mm or more rain6119531
10 cm (3.9 in): Days with 10 cm or more snowfall26319512
25 cm (9.8 in): Days with 25 cm or more snowfall1119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

  • Data for Lafayette Purdue UNIV 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).