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Built 2026-10-19 (19 October 2026)

Brownsville Lock 6 Threshold Days by Year (USC00151046)

4 fixed thresholds counted per year at Brownsville Lock 6 (USC00151046): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brownsville Lock 6 Thresholds

  • Brownsville Lock 6: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1923 with 59.
  • Brownsville Lock 6: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1933 with 23.
  • Brownsville Lock 6: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1919 with 6.
  • Brownsville Lock 6: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1957 with 3.
  • 4 fixed thresholds have at least one qualifying day at Brownsville Lock 6.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Brownsville Lock 6 Days per year at Brownsville Lock 6 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1923. 02040601917: 441918: 341919: 521920: 441921: 551922: 511923: 591924: 401925: 361926: 481927: 491928: 471929: 391930: 281931: 281932: 441933: 531934: 351935: 541937: 391938: 391939: 421940: 361942: 471943: 331944: 351945: 451946: 371949: 471950: 561953: 381954: 381955: 451956: 361957: 501958: 381959: 471960: 281917192119251929193319381943194919551959
Days per year at Brownsville Lock 6 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1923.
Days with 10 mm (0.39 in) or more of precipitation per year at Brownsville Lock 6
YearDaysDecade average
19174443.3
19183443.3
19195243.3
19204446.8
19215546.8
19225146.8
19235946.8
19244046.8
19253646.8
19264846.8
19274946.8
19284746.8
19293946.8
19302840.2
19312840.2
19324440.2
19335340.2
19343540.2
19355440.2
19373940.2
19383940.2
19394240.2
19403640
19424740
19433340
19443540
19454540
19463740
19494740
19505643.5
19533843.5
19543843.5
19554543.5
19563643.5
19575043.5
19583843.5
19594743.5
19602828
First to last qualifying date each year at Brownsville Lock 6 For each year, a bar from the first to the last day at Brownsville Lock 6 meeting 10 mm (0.39 in). 1917: 15 January 1917 to 25 December 19171918: 6 January 1918 to 31 December 19181919: 1 January 1919 to 14 December 19191920: 8 January 1920 to 27 December 19201921: 2 January 1921 to 24 December 19211922: 5 January 1922 to 27 December 19221923: 15 January 1923 to 31 December 19231924: 3 January 1924 to 24 December 19241925: 17 January 1925 to 5 December 19251926: 18 January 1926 to 29 December 19261927: 14 January 1927 to 29 December 19271928: 8 January 1928 to 18 December 19281929: 1 January 1929 to 28 December 19291930: 8 January 1930 to 26 December 19301931: 5 January 1931 to 22 December 19311932: 6 January 1932 to 31 December 19321933: 18 January 1933 to 20 December 19331934: 5 January 1934 to 26 December 19341935: 1 January 1935 to 8 December 19351937: 2 January 1937 to 23 December 19371938: 1 January 1938 to 27 December 19381939: 5 January 1939 to 27 December 19391940: 14 January 1940 to 28 December 19401942: 1 January 1942 to 30 December 19421943: 11 February 1943 to 29 December 19431944: 3 January 1944 to 31 December 19441945: 1 January 1945 to 25 December 19451946: 7 January 1946 to 30 December 19461949: 5 January 1949 to 18 December 19491950: 2 January 1950 to 7 December 19501953: 7 January 1953 to 14 December 19531954: 10 January 1954 to 29 December 19541955: 22 January 1955 to 4 December 19551956: 19 January 1956 to 21 December 19561957: 5 January 1957 to 26 December 19571958: 14 January 1958 to 24 December 19581959: 1 January 1959 to 28 December 19591960: 15 January 1960 to 21 December 196019171922192719321938194419531958JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brownsville Lock 6 meeting 10 mm (0.39 in).
First to last qualifying date each year at Brownsville Lock 6
YearFirst dateLast date
19171917-01-151917-12-25
19181918-01-061918-12-31
19191919-01-011919-12-14
19201920-01-081920-12-27
19211921-01-021921-12-24
19221922-01-051922-12-27
19231923-01-151923-12-31
19241924-01-031924-12-24
19251925-01-171925-12-05
19261926-01-181926-12-29
19271927-01-141927-12-29
19281928-01-081928-12-18
19291929-01-011929-12-28
19301930-01-081930-12-26
19311931-01-051931-12-22
19321932-01-061932-12-31
19331933-01-181933-12-20
19341934-01-051934-12-26
19351935-01-011935-12-08
19371937-01-021937-12-23
19381938-01-011938-12-27
19391939-01-051939-12-27
19401940-01-141940-12-28
19421942-01-011942-12-30
19431943-02-111943-12-29
19441944-01-031944-12-31
19451945-01-011945-12-25
19461946-01-071946-12-30
19491949-01-051949-12-18
19501950-01-021950-12-07
19531953-01-071953-12-14
19541954-01-101954-12-29
19551955-01-221955-12-04
19561956-01-191956-12-21
19571957-01-051957-12-26
19581958-01-141958-12-24
19591959-01-011959-12-28
19601960-01-151960-12-21

Every Fixed Threshold

Fixed thresholds at Brownsville Lock 6
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3859192328
25 mm (0.98 in): Days with 25 mm or more rain3823193311
50 mm (1.97 in): Days with 50 mm or more rain34619194
100 mm (3.94 in): Days with 100 mm or more rain5319573

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Brownsville Lock 6 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).