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Built 2026-10-19 (19 October 2026)

Port Arthur SE Tx Rgnl AP Threshold Days by Year (USW00012917)

17 fixed thresholds counted per year at Port Arthur SE Tx Rgnl AP (USW00012917): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Arthur SE Tx Rgnl AP Thresholds

  • Port Arthur SE Tx Rgnl AP: days with a maximum temperature at or above 30 C (86 F) in 79 years, most in 2023 with 167.
  • Port Arthur SE Tx Rgnl AP: days with a maximum temperature at or above 90 F (32.2 C) in 79 years, most in 2023 with 130.
  • Port Arthur SE Tx Rgnl AP: nights with a minimum temperature at or below 0 C (32 F) in 79 years, most in 1963 with 33.
  • Port Arthur SE Tx Rgnl AP: nights with a minimum temperature at or above 20 C (68 F) in 79 years, most in 2024 with 171.
  • 17 fixed thresholds have at least one qualifying day at Port Arthur SE Tx Rgnl AP.
79 years with a qualifying day
Days at or above 30 C (86 F) per year at Port Arthur SE Tx Rgnl AP Days per year at Port Arthur SE Tx Rgnl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 167 in 2023. 0501001502001948: 1371949: 1241950: 1281951: 1321952: 1271953: 1381954: 1321955: 1451956: 1441957: 1171958: 1221959: 1301960: 1301961: 1271962: 1541963: 1571964: 1261965: 1351966: 1301967: 1261968: 1201969: 1361970: 1311971: 1171972: 1231973: 1231974: 1141975: 1121976: 1141977: 1471978: 1611979: 1071980: 1321981: 1271982: 1311983: 811984: 1091985: 1421986: 1351987: 1401988: 1351989: 1271990: 1421991: 1381992: 1251993: 1321994: 1431995: 1361996: 1201997: 1211998: 1341999: 1452000: 1392001: 1172002: 1302003: 1362004: 1422005: 1502006: 1382007: 1352008: 1322009: 1352010: 1502011: 1552012: 1382013: 1362014: 1392015: 1482016: 1532017: 1302018: 1502019: 1512020: 1312021: 1272022: 1582023: 1672024: 1602025: 1622026: 1461948195619641972198019881996200420122020
Days per year at Port Arthur SE Tx Rgnl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 167 in 2023.
Days at or above 30 C (86 F) per year at Port Arthur SE Tx Rgnl AP
YearDaysDecade average
1948137130.5
1949124130.5
1950128131.5
1951132131.5
1952127131.5
1953138131.5
1954132131.5
1955145131.5
1956144131.5
1957117131.5
1958122131.5
1959130131.5
1960130134.1
1961127134.1
1962154134.1
1963157134.1
1964126134.1
1965135134.1
1966130134.1
1967126134.1
1968120134.1
1969136134.1
1970131124.9
1971117124.9
1972123124.9
1973123124.9
1974114124.9
1975112124.9
1976114124.9
1977147124.9
1978161124.9
1979107124.9
1980132125.9
1981127125.9
1982131125.9
198381125.9
1984109125.9
1985142125.9
1986135125.9
1987140125.9
1988135125.9
1989127125.9
1990142133.6
1991138133.6
1992125133.6
1993132133.6
1994143133.6
1995136133.6
1996120133.6
1997121133.6
1998134133.6
1999145133.6
2000139135.4
2001117135.4
2002130135.4
2003136135.4
2004142135.4
2005150135.4
2006138135.4
2007135135.4
2008132135.4
2009135135.4
2010150145
2011155145
2012138145
2013136145
2014139145
2015148145
2016153145
2017130145
2018150145
2019151145
2020131150.1
2021127150.1
2022158150.1
2023167150.1
2024160150.1
2025162150.1
2026146150.1
First to last qualifying date each year at Port Arthur SE Tx Rgnl AP For each year, a bar from the first to the last day at Port Arthur SE Tx Rgnl AP meeting 30 C (86 F). 1948: 18 April 1948 to 1 November 19481949: 4 May 1949 to 21 October 19491950: 14 May 1950 to 26 October 19501951: 4 May 1951 to 30 October 19511952: 3 May 1952 to 5 October 19521953: 9 April 1953 to 15 October 19531954: 19 May 1954 to 14 October 19541955: 24 April 1955 to 12 October 19551956: 15 April 1956 to 20 October 19561957: 9 May 1957 to 4 October 19571958: 24 April 1958 to 10 October 19581959: 7 May 1959 to 13 October 19591960: 19 May 1960 to 13 October 19601961: 27 April 1961 to 29 October 19611962: 28 April 1962 to 20 October 19621963: 22 April 1963 to 6 November 19631964: 2 May 1964 to 2 October 19641965: 19 April 1965 to 18 October 19651966: 1 April 1966 to 14 October 19661967: 15 March 1967 to 24 October 19671968: 14 May 1968 to 15 October 19681969: 23 April 1969 to 7 November 19691970: 29 April 1970 to 26 October 19701971: 23 April 1971 to 18 October 19711972: 16 April 1972 to 1 November 19721973: 25 April 1973 to 4 November 19731974: 29 March 1974 to 28 September 19741975: 9 May 1975 to 11 October 19751976: 11 May 1976 to 27 September 19761977: 6 May 1977 to 29 October 19771978: 18 April 1978 to 15 November 19781979: 13 April 1979 to 21 October 19791980: 6 May 1980 to 17 October 19801981: 20 April 1981 to 17 October 19811982: 5 April 1982 to 9 October 19821983: 27 May 1983 to 4 October 19831984: 3 May 1984 to 29 October 19841985: 5 April 1985 to 24 October 19851986: 8 April 1986 to 5 October 19861987: 16 April 1987 to 17 October 19871988: 23 April 1988 to 8 November 19881989: 29 April 1989 to 8 November 19891990: 13 May 1990 to 17 October 19901991: 27 April 1991 to 29 October 19911992: 13 April 1992 to 26 October 19921993: 15 May 1993 to 20 October 19931994: 26 April 1994 to 23 October 19941995: 18 April 1995 to 11 October 19951996: 13 April 1996 to 3 October 19961997: 9 May 1997 to 24 October 19971998: 8 April 1998 to 17 October 19981999: 25 April 1999 to 17 October 19992000: 17 April 2000 to 30 October 20002001: 13 April 2001 to 24 October 20012002: 22 April 2002 to 6 October 20022003: 17 April 2003 to 23 October 20032004: 18 May 2004 to 31 October 20042005: 10 May 2005 to 21 October 20052006: 17 April 2006 to 18 October 20062007: 28 April 2007 to 18 October 20072008: 15 March 2008 to 6 November 20082009: 10 April 2009 to 15 October 20092010: 26 April 2010 to 27 October 20102011: 11 April 2011 to 16 November 20112012: 5 April 2012 to 1 November 20122013: 18 May 2013 to 15 October 20132014: 22 April 2014 to 29 October 20142015: 13 April 2015 to 6 November 20152016: 3 March 2016 to 4 November 20162017: 8 February 2017 to 21 October 20172018: 19 March 2018 to 6 November 20182019: 25 March 2019 to 20 October 20192020: 9 April 2020 to 19 October 20202021: 24 April 2021 to 26 October 20212022: 6 April 2022 to 8 November 20222023: 8 March 2023 to 7 November 20232024: 7 May 2024 to 17 November 20242025: 13 March 2025 to 28 October 20252026: 16 April 2026 to 14 October 202619481958196819781988199820082018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Port Arthur SE Tx Rgnl AP meeting 30 C (86 F).
First to last qualifying date each year at Port Arthur SE Tx Rgnl AP
YearFirst dateLast date
19481948-04-181948-11-01
19491949-05-041949-10-21
19501950-05-141950-10-26
19511951-05-041951-10-30
19521952-05-031952-10-05
19531953-04-091953-10-15
19541954-05-191954-10-14
19551955-04-241955-10-12
19561956-04-151956-10-20
19571957-05-091957-10-04
19581958-04-241958-10-10
19591959-05-071959-10-13
19601960-05-191960-10-13
19611961-04-271961-10-29
19621962-04-281962-10-20
19631963-04-221963-11-06
19641964-05-021964-10-02
19651965-04-191965-10-18
19661966-04-011966-10-14
19671967-03-151967-10-24
19681968-05-141968-10-15
19691969-04-231969-11-07
19701970-04-291970-10-26
19711971-04-231971-10-18
19721972-04-161972-11-01
19731973-04-251973-11-04
19741974-03-291974-09-28
19751975-05-091975-10-11
19761976-05-111976-09-27
19771977-05-061977-10-29
19781978-04-181978-11-15
19791979-04-131979-10-21
19801980-05-061980-10-17
19811981-04-201981-10-17
19821982-04-051982-10-09
19831983-05-271983-10-04
19841984-05-031984-10-29
19851985-04-051985-10-24
19861986-04-081986-10-05
19871987-04-161987-10-17
19881988-04-231988-11-08
19891989-04-291989-11-08
19901990-05-131990-10-17
19911991-04-271991-10-29
19921992-04-131992-10-26
19931993-05-151993-10-20
19941994-04-261994-10-23
19951995-04-181995-10-11
19961996-04-131996-10-03
19971997-05-091997-10-24
19981998-04-081998-10-17
19991999-04-251999-10-17
20002000-04-172000-10-30
20012001-04-132001-10-24
20022002-04-222002-10-06
20032003-04-172003-10-23
20042004-05-182004-10-31
20052005-05-102005-10-21
20062006-04-172006-10-18
20072007-04-282007-10-18
20082008-03-152008-11-06
20092009-04-102009-10-15
20102010-04-262010-10-27
20112011-04-112011-11-16
20122012-04-052012-11-01
20132013-05-182013-10-15
20142014-04-222014-10-29
20152015-04-132015-11-06
20162016-03-032016-11-04
20172017-02-082017-10-21
20182018-03-192018-11-06
20192019-03-252019-10-20
20202020-04-092020-10-19
20212021-04-242021-10-26
20222022-04-062022-11-08
20232023-03-082023-11-07
20242024-05-072024-11-17
20252025-03-132025-10-28
20262026-04-162026-10-14

Every Fixed Threshold

Fixed thresholds at Port Arthur SE Tx Rgnl AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days791672023146
35 C (95 F): Days7484202340
40 C (104 F): Days5720237
90 F (32.2 C): Days791302023111
100 F (37.8 C): Days243620235
110 F (43.3 C): Days1120231
0 C (32 F): Ice days (max10419512
0 C (32 F): Frost days (min793319638
-10 C (14 F): Days with min4219511
20 C (68 F): Tropical nights (min791712024166
25 C (77 F): Days with min7757201939
10 mm (0.39 in): Days with 10 mm or more rain7956194931
25 mm (0.98 in): Days with 25 mm or more rain7931201817
50 mm (1.97 in): Days with 50 mm or more rain791519837
100 mm (3.94 in): Days with 100 mm or more rain58520172
200 mm (7.87 in): Days with 200 mm or more rain13220171
10 cm (3.9 in): Days with 10 cm or more snowfall1120251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Port Arthur SE Tx Rgnl 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).