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Built 2026-10-19 (19 October 2026)

Jacksonville NAS Threshold Days by Year (USW00093837)

14 fixed thresholds counted per year at Jacksonville NAS (USW00093837): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jacksonville NAS Thresholds

  • Jacksonville NAS: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 2015 with 183.
  • Jacksonville NAS: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 2015 with 129.
  • Jacksonville NAS: nights with a minimum temperature at or above 20 C (68 F) in 78 years, most in 2015 with 225.
  • Jacksonville NAS: nights with a minimum temperature at or above 25 C (77 F) in 78 years, most in 1998 with 101.
  • 14 fixed thresholds have at least one qualifying day at Jacksonville NAS.
78 years with a qualifying day
Days at or above 30 C (86 F) per year at Jacksonville NAS Days per year at Jacksonville NAS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 183 in 2015. 0501001502001945: 1491946: 1171947: 1281948: 1361949: 1351950: 1411951: 1411952: 1231953: 1231954: 1381955: 1351956: 1231957: 1131958: 1301959: 1321960: 1261961: 1221962: 1461963: 1351964: 1031965: 851966: 1001967: 971968: 1151969: 991970: 1391971: 1501972: 1051973: 1451974: 1391975: 1411976: 1271977: 1601978: 1481979: 1221980: 1331981: 1271982: 1281983: 1091984: 1241985: 1561986: 1651987: 1441988: 1391989: 1621990: 1711991: 1651992: 1451993: 1571994: 1691995: 1751996: 1201997: 1311998: 1652001: 1202002: 1472003: 1312004: 1162007: 1212008: 1312009: 1532010: 1512011: 1612012: 1552013: 1252014: 1612015: 1832016: 1712017: 1492018: 1632019: 1752020: 1662021: 1352022: 1612023: 1642024: 1592025: 1352026: 1471945195319611969197719851993200320132021
Days per year at Jacksonville NAS with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 183 in 2015.
Days at or above 30 C (86 F) per year at Jacksonville NAS
YearDaysDecade average
1945149133
1946117133
1947128133
1948136133
1949135133
1950141129.9
1951141129.9
1952123129.9
1953123129.9
1954138129.9
1955135129.9
1956123129.9
1957113129.9
1958130129.9
1959132129.9
1960126112.8
1961122112.8
1962146112.8
1963135112.8
1964103112.8
196585112.8
1966100112.8
196797112.8
1968115112.8
196999112.8
1970139137.6
1971150137.6
1972105137.6
1973145137.6
1974139137.6
1975141137.6
1976127137.6
1977160137.6
1978148137.6
1979122137.6
1980133138.7
1981127138.7
1982128138.7
1983109138.7
1984124138.7
1985156138.7
1986165138.7
1987144138.7
1988139138.7
1989162138.7
1990171155.3
1991165155.3
1992145155.3
1993157155.3
1994169155.3
1995175155.3
1996120155.3
1997131155.3
1998165155.3
2001120131.3
2002147131.3
2003131131.3
2004116131.3
2007121131.3
2008131131.3
2009153131.3
2010151159.4
2011161159.4
2012155159.4
2013125159.4
2014161159.4
2015183159.4
2016171159.4
2017149159.4
2018163159.4
2019175159.4
2020166152.4
2021135152.4
2022161152.4
2023164152.4
2024159152.4
2025135152.4
2026147152.4
First to last qualifying date each year at Jacksonville NAS For each year, a bar from the first to the last day at Jacksonville NAS meeting 30 C (86 F). 1945: 5 March 1945 to 22 October 19451946: 26 March 1946 to 11 November 19461947: 6 April 1947 to 20 October 19471948: 19 March 1948 to 6 November 19481949: 13 February 1949 to 30 October 19491950: 12 March 1950 to 3 November 19501951: 2 March 1951 to 30 October 19511952: 21 March 1952 to 2 October 19521953: 21 February 1953 to 13 October 19531954: 13 March 1954 to 13 October 19541955: 13 March 1955 to 8 October 19551956: 7 March 1956 to 5 October 19561957: 5 February 1957 to 17 November 19571958: 23 April 1958 to 16 November 19581959: 7 April 1959 to 6 November 19591960: 1 April 1960 to 19 October 19601961: 8 March 1961 to 1 November 19611962: 22 February 1962 to 9 October 19621963: 19 March 1963 to 28 October 19631964: 15 March 1964 to 4 October 19641965: 17 March 1965 to 2 October 19651966: 3 April 1966 to 19 October 19661967: 11 March 1967 to 25 October 19671968: 21 March 1968 to 18 October 19681969: 18 April 1969 to 1 October 19691970: 19 March 1970 to 25 October 19701971: 1 March 1971 to 2 November 19711972: 26 February 1972 to 15 December 19721973: 11 March 1973 to 28 November 19731974: 11 January 1974 to 15 October 19741975: 13 March 1975 to 26 October 19751976: 2 March 1976 to 8 October 19761977: 6 March 1977 to 11 October 19771978: 3 April 1978 to 29 November 19781979: 13 April 1979 to 23 October 19791980: 20 March 1980 to 19 October 19801981: 1 April 1981 to 10 October 19811982: 13 March 1982 to 13 October 19821983: 3 May 1983 to 20 October 19831984: 13 April 1984 to 29 October 19841985: 5 March 1985 to 17 November 19851986: 12 March 1986 to 12 November 19861987: 13 April 1987 to 20 October 19871988: 5 April 1988 to 20 November 19881989: 6 February 1989 to 13 November 19891990: 10 March 1990 to 4 November 19901991: 21 February 1991 to 28 October 19911992: 20 April 1992 to 4 November 19921993: 30 March 1993 to 15 November 19931994: 22 March 1994 to 5 December 19941995: 23 March 1995 to 2 November 19951996: 23 April 1996 to 2 November 19961997: 28 February 1997 to 26 October 19971998: 1 April 1998 to 16 November 19982001: 9 April 2001 to 25 October 20012002: 16 March 2002 to 29 October 20022003: 6 March 2003 to 22 October 20032004: 2 May 2004 to 4 November 20042007: 3 April 2007 to 23 October 20072008: 19 March 2008 to 17 October 20082009: 15 March 2009 to 31 October 20092010: 23 April 2010 to 28 October 20102011: 28 February 2011 to 16 November 20112012: 24 February 2012 to 18 October 20122013: 11 April 2013 to 29 October 20132014: 16 March 2014 to 24 November 20142015: 4 March 2015 to 30 December 20152016: 14 March 2016 to 4 November 20162017: 1 March 2017 to 9 October 20172018: 1 March 2018 to 13 November 20182019: 18 February 2019 to 12 November 20192020: 13 February 2020 to 29 October 20202021: 18 February 2021 to 22 October 20212022: 25 February 2022 to 1 November 20222023: 30 January 2023 to 22 October 20232024: 28 February 2024 to 27 October 20242025: 13 February 2025 to 28 September 20252026: 20 February 2026 to 12 October 202619451955196519751985199520092019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Jacksonville NAS meeting 30 C (86 F).
First to last qualifying date each year at Jacksonville NAS
YearFirst dateLast date
19451945-03-051945-10-22
19461946-03-261946-11-11
19471947-04-061947-10-20
19481948-03-191948-11-06
19491949-02-131949-10-30
19501950-03-121950-11-03
19511951-03-021951-10-30
19521952-03-211952-10-02
19531953-02-211953-10-13
19541954-03-131954-10-13
19551955-03-131955-10-08
19561956-03-071956-10-05
19571957-02-051957-11-17
19581958-04-231958-11-16
19591959-04-071959-11-06
19601960-04-011960-10-19
19611961-03-081961-11-01
19621962-02-221962-10-09
19631963-03-191963-10-28
19641964-03-151964-10-04
19651965-03-171965-10-02
19661966-04-031966-10-19
19671967-03-111967-10-25
19681968-03-211968-10-18
19691969-04-181969-10-01
19701970-03-191970-10-25
19711971-03-011971-11-02
19721972-02-261972-12-15
19731973-03-111973-11-28
19741974-01-111974-10-15
19751975-03-131975-10-26
19761976-03-021976-10-08
19771977-03-061977-10-11
19781978-04-031978-11-29
19791979-04-131979-10-23
19801980-03-201980-10-19
19811981-04-011981-10-10
19821982-03-131982-10-13
19831983-05-031983-10-20
19841984-04-131984-10-29
19851985-03-051985-11-17
19861986-03-121986-11-12
19871987-04-131987-10-20
19881988-04-051988-11-20
19891989-02-061989-11-13
19901990-03-101990-11-04
19911991-02-211991-10-28
19921992-04-201992-11-04
19931993-03-301993-11-15
19941994-03-221994-12-05
19951995-03-231995-11-02
19961996-04-231996-11-02
19971997-02-281997-10-26
19981998-04-011998-11-16
20012001-04-092001-10-25
20022002-03-162002-10-29
20032003-03-062003-10-22
20042004-05-022004-11-04
20072007-04-032007-10-23
20082008-03-192008-10-17
20092009-03-152009-10-31
20102010-04-232010-10-28
20112011-02-282011-11-16
20122012-02-242012-10-18
20132013-04-112013-10-29
20142014-03-162014-11-24
20152015-03-042015-12-30
20162016-03-142016-11-04
20172017-03-012017-10-09
20182018-03-012018-11-13
20192019-02-182019-11-12
20202020-02-132020-10-29
20212021-02-182021-10-22
20222022-02-252022-11-01
20232023-01-302023-10-22
20242024-02-282024-10-27
20252025-02-132025-09-28
20262026-02-202026-10-12

Every Fixed Threshold

Fixed thresholds at Jacksonville NAS
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days781832015147
35 C (95 F): Days7761201527
40 C (104 F): Days1119981
90 F (32.2 C): Days78129201589
100 F (37.8 C): Days292519982
0 C (32 F): Ice days (max3119831
0 C (32 F): Frost days (min703219816
-10 C (14 F): Days with min4119621
20 C (68 F): Tropical nights (min782252015153
25 C (77 F): Days with min78101199854
10 mm (0.39 in): Days with 10 mm or more rain7760199430
25 mm (0.98 in): Days with 25 mm or more rain7726199110
50 mm (1.97 in): Days with 50 mm or more rain71919913
100 mm (3.94 in): Days with 100 mm or more rain23219471

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Jacksonville NAS 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 (2026-10-15).