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Built 2026-10-19 (19 October 2026)

Jacksonville Threshold Days by Year (USW00013889)

15 fixed thresholds counted per year at Jacksonville (USW00013889): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jacksonville Thresholds

  • Jacksonville: days with a maximum temperature at or above 30 C (86 F) in 87 years, most in 2019 with 172.
  • Jacksonville: days with a maximum temperature at or above 90 F (32.2 C) in 87 years, most in 1955 with 116.
  • Jacksonville: nights with a minimum temperature at or below 0 C (32 F) in 87 years, most in 2010 with 44.
  • Jacksonville: nights with a minimum temperature at or above 20 C (68 F) in 87 years, most in 1959 with 164.
  • 15 fixed thresholds have at least one qualifying day at Jacksonville.
87 years with a qualifying day
Days at or above 30 C (86 F) per year at Jacksonville Days per year at Jacksonville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 172 in 2019. 0501001502001939: 1421941: 1511942: 1241943: 1301944: 1331945: 1461946: 1251947: 1351948: 1491949: 1491950: 1511951: 1441952: 1351953: 1311954: 1431955: 1671956: 1431957: 1301958: 1221959: 1401960: 1371961: 1301962: 1551963: 1351964: 1271965: 1471966: 1051967: 1351968: 1551969: 1231970: 1481971: 1561972: 1211973: 1451974: 1281975: 1371976: 1081977: 1481978: 1291979: 1121980: 1461981: 1481982: 1461983: 1091984: 1141985: 1331986: 1601987: 1351988: 1231989: 1501990: 1611991: 1491992: 1301993: 1381994: 1261995: 1401996: 1261997: 1181998: 1271999: 1222000: 1262001: 1222002: 1412003: 1292004: 1382005: 1282006: 1502007: 1212008: 1202009: 1422010: 1472011: 1562012: 1312013: 1232014: 1342015: 1432016: 1492017: 1582018: 1602019: 1722020: 1542021: 1342022: 1472023: 1512024: 1572025: 1542026: 1691939194919581967197619851994200320122021
Days per year at Jacksonville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 172 in 2019.
Days at or above 30 C (86 F) per year at Jacksonville
YearDaysDecade average
1939142142
1941151138
1942124138
1943130138
1944133138
1945146138
1946125138
1947135138
1948149138
1949149138
1950151140.6
1951144140.6
1952135140.6
1953131140.6
1954143140.6
1955167140.6
1956143140.6
1957130140.6
1958122140.6
1959140140.6
1960137134.9
1961130134.9
1962155134.9
1963135134.9
1964127134.9
1965147134.9
1966105134.9
1967135134.9
1968155134.9
1969123134.9
1970148133.2
1971156133.2
1972121133.2
1973145133.2
1974128133.2
1975137133.2
1976108133.2
1977148133.2
1978129133.2
1979112133.2
1980146136.4
1981148136.4
1982146136.4
1983109136.4
1984114136.4
1985133136.4
1986160136.4
1987135136.4
1988123136.4
1989150136.4
1990161133.7
1991149133.7
1992130133.7
1993138133.7
1994126133.7
1995140133.7
1996126133.7
1997118133.7
1998127133.7
1999122133.7
2000126131.7
2001122131.7
2002141131.7
2003129131.7
2004138131.7
2005128131.7
2006150131.7
2007121131.7
2008120131.7
2009142131.7
2010147147.3
2011156147.3
2012131147.3
2013123147.3
2014134147.3
2015143147.3
2016149147.3
2017158147.3
2018160147.3
2019172147.3
2020154152.3
2021134152.3
2022147152.3
2023151152.3
2024157152.3
2025154152.3
2026169152.3
First to last qualifying date each year at Jacksonville For each year, a bar from the first to the last day at Jacksonville meeting 30 C (86 F). 1939: 11 February 1939 to 28 October 19391941: 11 April 1941 to 1 November 19411942: 16 March 1942 to 24 October 19421943: 18 March 1943 to 22 October 19431944: 19 March 1944 to 7 October 19441945: 3 March 1945 to 3 October 19451946: 26 March 1946 to 11 November 19461947: 6 April 1947 to 28 October 19471948: 19 March 1948 to 28 November 19481949: 24 March 1949 to 30 October 19491950: 12 March 1950 to 3 November 19501951: 8 March 1951 to 24 October 19511952: 21 March 1952 to 15 October 19521953: 21 February 1953 to 6 October 19531954: 13 March 1954 to 13 October 19541955: 12 March 1955 to 15 November 19551956: 7 March 1956 to 5 October 19561957: 5 February 1957 to 30 September 19571958: 23 April 1958 to 10 October 19581959: 14 February 1959 to 14 October 19591960: 1 April 1960 to 19 October 19601961: 20 February 1961 to 3 November 19611962: 24 February 1962 to 21 October 19621963: 5 March 1963 to 28 October 19631964: 3 March 1964 to 4 October 19641965: 17 March 1965 to 12 October 19651966: 12 April 1966 to 19 October 19661967: 6 March 1967 to 17 October 19671968: 21 March 1968 to 19 October 19681969: 3 April 1969 to 14 October 19691970: 19 March 1970 to 16 October 19701971: 26 February 1971 to 2 November 19711972: 13 April 1972 to 24 October 19721973: 12 March 1973 to 16 October 19731974: 7 March 1974 to 15 October 19741975: 24 March 1975 to 17 October 19751976: 30 March 1976 to 8 October 19761977: 15 March 1977 to 2 October 19771978: 4 April 1978 to 6 October 19781979: 3 April 1979 to 23 October 19791980: 13 April 1980 to 19 October 19801981: 1 April 1981 to 27 October 19811982: 9 February 1982 to 13 October 19821983: 6 April 1983 to 13 October 19831984: 28 March 1984 to 29 October 19841985: 5 March 1985 to 21 October 19851986: 12 March 1986 to 12 November 19861987: 13 April 1987 to 29 September 19871988: 5 April 1988 to 20 November 19881989: 5 March 1989 to 17 October 19891990: 3 February 1990 to 22 October 19901991: 23 March 1991 to 15 October 19911992: 20 April 1992 to 4 November 19921993: 30 March 1993 to 21 October 19931994: 24 March 1994 to 9 October 19941995: 23 March 1995 to 2 November 19951996: 14 April 1996 to 29 October 19961997: 28 February 1997 to 26 October 19971998: 1 April 1998 to 20 October 19981999: 4 April 1999 to 12 October 19992000: 21 April 2000 to 6 October 20002001: 3 March 2001 to 25 October 20012002: 16 March 2002 to 29 October 20022003: 6 March 2003 to 7 November 20032004: 6 March 2004 to 4 November 20042005: 29 April 2005 to 21 October 20052006: 21 March 2006 to 22 October 20062007: 2 April 2007 to 23 October 20072008: 1 April 2008 to 16 October 20082009: 15 March 2009 to 31 October 20092010: 5 April 2010 to 28 October 20102011: 28 February 2011 to 17 October 20112012: 3 March 2012 to 7 October 20122013: 11 April 2013 to 19 October 20132014: 3 April 2014 to 24 November 20142015: 10 March 2015 to 7 November 20152016: 14 March 2016 to 31 October 20162017: 28 February 2017 to 7 November 20172018: 25 February 2018 to 13 November 20182019: 18 February 2019 to 31 October 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 10 November 20232024: 9 March 2024 to 7 November 20242025: 13 February 2025 to 14 October 20252026: 20 February 2026 to 14 October 202619391951196219731984199520062017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Jacksonville meeting 30 C (86 F).
First to last qualifying date each year at Jacksonville
YearFirst dateLast date
19391939-02-111939-10-28
19411941-04-111941-11-01
19421942-03-161942-10-24
19431943-03-181943-10-22
19441944-03-191944-10-07
19451945-03-031945-10-03
19461946-03-261946-11-11
19471947-04-061947-10-28
19481948-03-191948-11-28
19491949-03-241949-10-30
19501950-03-121950-11-03
19511951-03-081951-10-24
19521952-03-211952-10-15
19531953-02-211953-10-06
19541954-03-131954-10-13
19551955-03-121955-11-15
19561956-03-071956-10-05
19571957-02-051957-09-30
19581958-04-231958-10-10
19591959-02-141959-10-14
19601960-04-011960-10-19
19611961-02-201961-11-03
19621962-02-241962-10-21
19631963-03-051963-10-28
19641964-03-031964-10-04
19651965-03-171965-10-12
19661966-04-121966-10-19
19671967-03-061967-10-17
19681968-03-211968-10-19
19691969-04-031969-10-14
19701970-03-191970-10-16
19711971-02-261971-11-02
19721972-04-131972-10-24
19731973-03-121973-10-16
19741974-03-071974-10-15
19751975-03-241975-10-17
19761976-03-301976-10-08
19771977-03-151977-10-02
19781978-04-041978-10-06
19791979-04-031979-10-23
19801980-04-131980-10-19
19811981-04-011981-10-27
19821982-02-091982-10-13
19831983-04-061983-10-13
19841984-03-281984-10-29
19851985-03-051985-10-21
19861986-03-121986-11-12
19871987-04-131987-09-29
19881988-04-051988-11-20
19891989-03-051989-10-17
19901990-02-031990-10-22
19911991-03-231991-10-15
19921992-04-201992-11-04
19931993-03-301993-10-21
19941994-03-241994-10-09
19951995-03-231995-11-02
19961996-04-141996-10-29
19971997-02-281997-10-26
19981998-04-011998-10-20
19991999-04-041999-10-12
20002000-04-212000-10-06
20012001-03-032001-10-25
20022002-03-162002-10-29
20032003-03-062003-11-07
20042004-03-062004-11-04
20052005-04-292005-10-21
20062006-03-212006-10-22
20072007-04-022007-10-23
20082008-04-012008-10-16
20092009-03-152009-10-31
20102010-04-052010-10-28
20112011-02-282011-10-17
20122012-03-032012-10-07
20132013-04-112013-10-19
20142014-04-032014-11-24
20152015-03-102015-11-07
20162016-03-142016-10-31
20172017-02-282017-11-07
20182018-02-252018-11-13
20192019-02-182019-10-31
20202020-02-132020-10-29
20212021-02-182021-10-22
20222022-02-252022-11-01
20232023-01-302023-11-10
20242024-03-092024-11-07
20252025-02-132025-10-14
20262026-02-202026-10-14

Every Fixed Threshold

Fixed thresholds at Jacksonville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days871722019169
35 C (95 F): Days8557194141
40 C (104 F): Days1119421
90 F (32.2 C): Days871161955109
100 F (37.8 C): Days331019813
0 C (32 F): Ice days (max2119831
0 C (32 F): Frost days (min8744201019
-10 C (14 F): Days with min4219831
20 C (68 F): Tropical nights (min871641959140
25 C (77 F): Days with min701319577
10 mm (0.39 in): Days with 10 mm or more rain8653194140
25 mm (0.98 in): Days with 25 mm or more rain8627194717
50 mm (1.97 in): Days with 50 mm or more rain861219914
100 mm (3.94 in): Days with 100 mm or more rain41319502
200 mm (7.87 in): Days with 200 mm or more rain1119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Jacksonville 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).