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Built 2026-10-19 (19 October 2026)

Port Sulphur Threshold Days by Year (USC00167471)

14 fixed thresholds counted per year at Port Sulphur (USC00167471): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Sulphur Thresholds

  • Port Sulphur: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1946 with 59.
  • Port Sulphur: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1958 with 29.
  • Port Sulphur: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1942 with 15.
  • Port Sulphur: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1937 with 148.
  • 14 fixed thresholds have at least one qualifying day at Port Sulphur.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Port Sulphur Days per year at Port Sulphur with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 1937. 0501001501936: 1421937: 1481939: 1191940: 911941: 1281942: 991943: 1291944: 1281945: 1241946: 1141948: 1231950: 1211951: 1371952: 1221953: 1071954: 1301955: 1261956: 1141957: 1041958: 1211959: 1301960: 1231961: 1001962: 1381963: 1251964: 94193619401943194619511954195719601963
Days per year at Port Sulphur with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 1937.
Days at or above 30 C (86 F) per year at Port Sulphur
YearDaysDecade average
1936142136.3
1937148136.3
1939119136.3
194091117
1941128117
194299117
1943129117
1944128117
1945124117
1946114117
1948123117
1950121121.2
1951137121.2
1952122121.2
1953107121.2
1954130121.2
1955126121.2
1956114121.2
1957104121.2
1958121121.2
1959130121.2
1960123116
1961100116
1962138116
1963125116
196494116
First to last qualifying date each year at Port Sulphur For each year, a bar from the first to the last day at Port Sulphur meeting 30 C (86 F). 1936: 5 March 1936 to 3 November 19361937: 16 April 1937 to 29 October 19371939: 5 March 1939 to 27 October 19391940: 9 May 1940 to 5 November 19401941: 8 May 1941 to 31 October 19411942: 27 May 1942 to 19 October 19421943: 29 April 1943 to 3 October 19431944: 17 March 1944 to 7 October 19441945: 4 April 1945 to 6 October 19451946: 30 March 1946 to 3 November 19461948: 6 February 1948 to 4 November 19481950: 7 May 1950 to 13 October 19501951: 4 May 1951 to 16 November 19511952: 29 April 1952 to 5 October 19521953: 9 May 1953 to 23 October 19531954: 30 April 1954 to 14 October 19541955: 20 March 1955 to 13 October 19551956: 29 April 1956 to 26 October 19561957: 26 April 1957 to 27 September 19571958: 23 April 1958 to 24 October 19581959: 9 April 1959 to 6 November 19591960: 29 April 1960 to 5 October 19601961: 19 May 1961 to 1 November 19611962: 7 May 1962 to 21 October 19621963: 13 April 1963 to 29 October 19631964: 29 April 1964 to 30 September 19641936194119451951195519591963JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Port Sulphur meeting 30 C (86 F).
First to last qualifying date each year at Port Sulphur
YearFirst dateLast date
19361936-03-051936-11-03
19371937-04-161937-10-29
19391939-03-051939-10-27
19401940-05-091940-11-05
19411941-05-081941-10-31
19421942-05-271942-10-19
19431943-04-291943-10-03
19441944-03-171944-10-07
19451945-04-041945-10-06
19461946-03-301946-11-03
19481948-02-061948-11-04
19501950-05-071950-10-13
19511951-05-041951-11-16
19521952-04-291952-10-05
19531953-05-091953-10-23
19541954-04-301954-10-14
19551955-03-201955-10-13
19561956-04-291956-10-26
19571957-04-261957-09-27
19581958-04-231958-10-24
19591959-04-091959-11-06
19601960-04-291960-10-05
19611961-05-191961-11-01
19621962-05-071962-10-21
19631963-04-131963-10-29
19641964-04-291964-09-30

Every Fixed Threshold

Fixed thresholds at Port Sulphur
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days26148193794
35 C (95 F): Days2633195113
90 F (32.2 C): Days26107193763
100 F (37.8 C): Days3319371
0 C (32 F): Ice days (max2319621
0 C (32 F): Frost days (min242619637
-10 C (14 F): Days with min1119631
20 C (68 F): Tropical nights (min261741955150
25 C (77 F): Days with min2566196233
10 mm (0.39 in): Days with 10 mm or more rain2959194647
25 mm (0.98 in): Days with 25 mm or more rain2929195818
50 mm (1.97 in): Days with 50 mm or more rain291519427
100 mm (3.94 in): Days with 100 mm or more rain21319372
200 mm (7.87 in): Days with 200 mm or more rain2119561

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

Download the Data

  • Data for Port Sulphur 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 (2025-12-31).