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Built 2026-10-19 (19 October 2026)

Conroe Threshold Days by Year (USC00411956)

16 fixed thresholds counted per year at Conroe (USC00411956): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Conroe Thresholds

  • Conroe: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1973 with 49.
  • Conroe: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1973 with 27.
  • Conroe: days with a maximum temperature at or above 30 C (86 F) in 90 years, most in 1963 with 185.
  • Conroe: days with a maximum temperature at or above 35 C (95 F) in 90 years, most in 2011 with 101.
  • 16 fixed thresholds have at least one qualifying day at Conroe.
90 years with a qualifying day
Days at or above 30 C (86 F) per year at Conroe Days per year at Conroe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 185 in 1963. 0501001502001898: 1411921: 1771923: 1451924: 1431925: 841929: 781931: 1541933: 1561934: 1611935: 1471939: 1581940: 1271941: 1391942: 1201943: 1341944: 1381945: 1281946: 1161948: 1751950: 1351951: 1471952: 1311953: 1551954: 1491955: 1741956: 1681957: 1211958: 1481959: 1531960: 1511961: 1461962: 1661963: 1851964: 1421965: 1491966: 1331967: 1621968: 1251969: 1481970: 1351971: 1421972: 1451973: 1421974: 1331975: 1331976: 1121978: 1591979: 931980: 1421981: 1251982: 1451983: 1281984: 1511985: 1491986: 1291988: 1501989: 1331990: 1401991: 1421992: 1231993: 1231994: 1341995: 1321996: 1441997: 1281998: 1442001: 1312002: 1392004: 1282005: 1512006: 1422007: 1352008: 1262009: 1312010: 1502011: 1722012: 1412013: 1342014: 1042015: 1362017: 1622018: 1552019: 1542020: 1582021: 1612022: 1742023: 1612024: 1642025: 1752026: 1521898193519481958196719761986199620082018
Days per year at Conroe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 185 in 1963.
Days at or above 30 C (86 F) per year at Conroe
YearDaysDecade average
1898141141
1921177125.4
1923145125.4
1924143125.4
192584125.4
192978125.4
1931154155.2
1933156155.2
1934161155.2
1935147155.2
1939158155.2
1940127134.6
1941139134.6
1942120134.6
1943134134.6
1944138134.6
1945128134.6
1946116134.6
1948175134.6
1950135148.1
1951147148.1
1952131148.1
1953155148.1
1954149148.1
1955174148.1
1956168148.1
1957121148.1
1958148148.1
1959153148.1
1960151150.7
1961146150.7
1962166150.7
1963185150.7
1964142150.7
1965149150.7
1966133150.7
1967162150.7
1968125150.7
1969148150.7
1970135132.7
1971142132.7
1972145132.7
1973142132.7
1974133132.7
1975133132.7
1976112132.7
1978159132.7
197993132.7
1980142139.1
1981125139.1
1982145139.1
1983128139.1
1984151139.1
1985149139.1
1986129139.1
1988150139.1
1989133139.1
1990140134.4
1991142134.4
1992123134.4
1993123134.4
1994134134.4
1995132134.4
1996144134.4
1997128134.4
1998144134.4
2001131135.4
2002139135.4
2004128135.4
2005151135.4
2006142135.4
2007135135.4
2008126135.4
2009131135.4
2010150145.3
2011172145.3
2012141145.3
2013134145.3
2014104145.3
2015136145.3
2017162145.3
2018155145.3
2019154145.3
2020158163.6
2021161163.6
2022174163.6
2023161163.6
2024164163.6
2025175163.6
2026152163.6
First to last qualifying date each year at Conroe For each year, a bar from the first to the last day at Conroe meeting 30 C (86 F). 1898: 22 April 1898 to 5 November 18981921: 7 March 1921 to 14 December 19211923: 25 April 1923 to 14 October 19231924: 22 April 1924 to 8 November 19241925: 11 March 1925 to 24 October 19251929: 24 March 1929 to 30 October 19291931: 21 April 1931 to 17 November 19311933: 15 March 1933 to 3 December 19331934: 10 April 1934 to 9 November 19341935: 26 March 1935 to 28 October 19351939: 26 March 1939 to 28 October 19391940: 29 February 1940 to 24 October 19401941: 8 May 1941 to 27 October 19411942: 14 March 1942 to 3 November 19421943: 30 April 1943 to 1 November 19431944: 16 April 1944 to 2 November 19441945: 27 March 1945 to 3 November 19451946: 30 March 1946 to 24 October 19461948: 25 March 1948 to 5 November 19481950: 26 March 1950 to 16 November 19501951: 25 February 1951 to 14 November 19511952: 1 April 1952 to 27 October 19521953: 2 April 1953 to 23 October 19531954: 12 March 1954 to 19 October 19541955: 12 March 1955 to 25 December 19551956: 29 April 1956 to 30 October 19561957: 11 May 1957 to 6 October 19571958: 4 April 1958 to 26 October 19581959: 20 April 1959 to 14 November 19591960: 7 April 1960 to 29 October 19601961: 28 March 1961 to 2 November 19611962: 10 February 1962 to 24 October 19621963: 13 March 1963 to 7 November 19631964: 21 April 1964 to 18 November 19641965: 4 April 1965 to 27 November 19651966: 1 April 1966 to 15 October 19661967: 6 March 1967 to 27 November 19671968: 15 April 1968 to 31 October 19681969: 11 April 1969 to 12 November 19691970: 17 April 1970 to 28 October 19701971: 15 March 1971 to 3 November 19711972: 18 March 1972 to 1 November 19721973: 26 April 1973 to 23 November 19731974: 7 March 1974 to 12 October 19741975: 25 April 1975 to 10 November 19751976: 6 May 1976 to 4 October 19761978: 19 April 1978 to 14 November 19781979: 13 April 1979 to 30 October 19791980: 11 March 1980 to 17 October 19801981: 15 April 1981 to 18 October 19811982: 22 February 1982 to 1 November 19821983: 28 April 1983 to 13 November 19831984: 28 March 1984 to 2 November 19841985: 10 March 1985 to 25 October 19851986: 17 February 1986 to 5 October 19861988: 3 April 1988 to 15 November 19881989: 30 March 1989 to 8 November 19891990: 24 April 1990 to 15 October 19901991: 5 March 1991 to 29 October 19911992: 13 April 1992 to 31 October 19921993: 25 April 1993 to 19 October 19931994: 9 April 1994 to 20 October 19941995: 22 March 1995 to 2 November 19951996: 20 February 1996 to 18 October 19961997: 30 March 1997 to 12 October 19971998: 7 April 1998 to 16 October 19982001: 8 April 2001 to 25 October 20012002: 18 April 2002 to 6 October 20022004: 12 May 2004 to 1 November 20042005: 14 March 2005 to 7 November 20052006: 17 April 2006 to 11 November 20062007: 29 April 2007 to 21 October 20072008: 15 March 2008 to 14 October 20082009: 23 April 2009 to 16 October 20092010: 27 April 2010 to 2 November 20102011: 27 March 2011 to 27 October 20112012: 1 April 2012 to 26 October 20122013: 20 March 2013 to 13 October 20132014: 26 April 2014 to 11 October 20142015: 8 April 2015 to 17 October 20152017: 9 February 2017 to 7 November 20172018: 26 March 2018 to 8 November 20182019: 10 April 2019 to 21 October 20192020: 26 March 2020 to 15 November 20202021: 9 April 2021 to 27 October 20212022: 27 March 2022 to 10 November 20222023: 1 March 2023 to 8 November 20232024: 28 February 2024 to 26 November 20242025: 13 March 2025 to 28 October 20252026: 15 March 2026 to 14 October 202618981941195519671980199320082021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Conroe meeting 30 C (86 F).
First to last qualifying date each year at Conroe
YearFirst dateLast date
18981898-04-221898-11-05
19211921-03-071921-12-14
19231923-04-251923-10-14
19241924-04-221924-11-08
19251925-03-111925-10-24
19291929-03-241929-10-30
19311931-04-211931-11-17
19331933-03-151933-12-03
19341934-04-101934-11-09
19351935-03-261935-10-28
19391939-03-261939-10-28
19401940-02-291940-10-24
19411941-05-081941-10-27
19421942-03-141942-11-03
19431943-04-301943-11-01
19441944-04-161944-11-02
19451945-03-271945-11-03
19461946-03-301946-10-24
19481948-03-251948-11-05
19501950-03-261950-11-16
19511951-02-251951-11-14
19521952-04-011952-10-27
19531953-04-021953-10-23
19541954-03-121954-10-19
19551955-03-121955-12-25
19561956-04-291956-10-30
19571957-05-111957-10-06
19581958-04-041958-10-26
19591959-04-201959-11-14
19601960-04-071960-10-29
19611961-03-281961-11-02
19621962-02-101962-10-24
19631963-03-131963-11-07
19641964-04-211964-11-18
19651965-04-041965-11-27
19661966-04-011966-10-15
19671967-03-061967-11-27
19681968-04-151968-10-31
19691969-04-111969-11-12
19701970-04-171970-10-28
19711971-03-151971-11-03
19721972-03-181972-11-01
19731973-04-261973-11-23
19741974-03-071974-10-12
19751975-04-251975-11-10
19761976-05-061976-10-04
19781978-04-191978-11-14
19791979-04-131979-10-30
19801980-03-111980-10-17
19811981-04-151981-10-18
19821982-02-221982-11-01
19831983-04-281983-11-13
19841984-03-281984-11-02
19851985-03-101985-10-25
19861986-02-171986-10-05
19881988-04-031988-11-15
19891989-03-301989-11-08
19901990-04-241990-10-15
19911991-03-051991-10-29
19921992-04-131992-10-31
19931993-04-251993-10-19
19941994-04-091994-10-20
19951995-03-221995-11-02
19961996-02-201996-10-18
19971997-03-301997-10-12
19981998-04-071998-10-16
20012001-04-082001-10-25
20022002-04-182002-10-06
20042004-05-122004-11-01
20052005-03-142005-11-07
20062006-04-172006-11-11
20072007-04-292007-10-21
20082008-03-152008-10-14
20092009-04-232009-10-16
20102010-04-272010-11-02
20112011-03-272011-10-27
20122012-04-012012-10-26
20132013-03-202013-10-13
20142014-04-262014-10-11
20152015-04-082015-10-17
20172017-02-092017-11-07
20182018-03-262018-11-08
20192019-04-102019-10-21
20202020-03-262020-11-15
20212021-04-092021-10-27
20222022-03-272022-11-10
20232023-03-012023-11-08
20242024-02-282024-11-26
20252025-03-132025-10-28
20262026-03-152026-10-14

Every Fixed Threshold

Fixed thresholds at Conroe
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days901851963152
35 C (95 F): Days90101201154
40 C (104 F): Days2213194812
90 F (32.2 C): Days901451963120
100 F (37.8 C): Days6648201111
0 C (32 F): Ice days (max28619511
0 C (32 F): Frost days (min8949198511
-10 C (14 F): Days with min14519402
20 C (68 F): Tropical nights (min901702022160
25 C (77 F): Days with min6870202137
10 mm (0.39 in): Days with 10 mm or more rain9149197331
25 mm (0.98 in): Days with 25 mm or more rain912719738
50 mm (1.97 in): Days with 50 mm or more rain861220244
100 mm (3.94 in): Days with 100 mm or more rain44419601
200 mm (7.87 in): Days with 200 mm or more rain7220172
10 cm (3.9 in): Days with 10 cm or more snowfall1119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

  • Data for Conroe 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).