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Built 2026-10-19 (19 October 2026)

Boa Vista (Ledo) Threshold Days by Year (BR038475550)

4 fixed thresholds counted per year at Boa Vista (Ledo) (BR038475550): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boa Vista (Ledo) Thresholds

  • Boa Vista (Ledo): days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1924 with 36.
  • Boa Vista (Ledo): days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1924 with 11.
  • Boa Vista (Ledo): days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1939 with 3.
  • Boa Vista (Ledo): days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1934 with 1.
  • 4 fixed thresholds have at least one qualifying day at Boa Vista (Ledo).
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Boa Vista (Ledo) Days per year at Boa Vista (Ledo) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1924. 0102030401923: 71924: 361925: 121931: 121933: 51934: 131935: 251936: 191939: 171940: 301941: 91942: 101943: 151944: 71945: 81946: 71947: 121948: 121949: 101950: 51951: 21952: 31953: 81954: 91955: 101956: 111957: 101958: 61959: 81960: 211961: 191962: 121963: 131964: 221965: 111966: 161967: 151968: 201969: 191970: 81923193319391943194719511955195919631967
Days per year at Boa Vista (Ledo) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1924.
Days with 10 mm (0.39 in) or more of precipitation per year at Boa Vista (Ledo)
YearDaysDecade average
1923718.3
19243618.3
19251218.3
19311215.2
1933515.2
19341315.2
19352515.2
19361915.2
19391715.2
19403012
1941912
19421012
19431512
1944712
1945812
1946712
19471212
19481212
19491012
195057.2
195127.2
195237.2
195387.2
195497.2
1955107.2
1956117.2
1957107.2
195867.2
195987.2
19602116.8
19611916.8
19621216.8
19631316.8
19642216.8
19651116.8
19661616.8
19671516.8
19682016.8
19691916.8
197088
First to last qualifying date each year at Boa Vista (Ledo) For each year, a bar from the first to the last day at Boa Vista (Ledo) meeting 10 mm (0.39 in). 1923: 13 January 1923 to 29 July 19231924: 25 January 1924 to 25 August 19241925: 18 January 1925 to 28 December 19251931: 20 February 1931 to 1 December 19311933: 15 February 1933 to 30 June 19331934: 22 February 1934 to 21 December 19341935: 1 January 1935 to 7 July 19351936: 1 January 1936 to 4 July 19361939: 16 March 1939 to 14 November 19391940: 31 January 1940 to 27 July 19401941: 13 February 1941 to 1 September 19411942: 13 February 1942 to 21 July 19421943: 26 January 1943 to 8 August 19431944: 7 March 1944 to 10 July 19441945: 8 January 1945 to 25 August 19451946: 12 February 1946 to 22 December 19461947: 22 January 1947 to 25 November 19471948: 5 March 1948 to 3 September 19481949: 21 April 1949 to 27 November 19491950: 5 February 1950 to 16 April 19501951: 21 March 1951 to 5 May 19511952: 18 March 1952 to 12 June 19521953: 26 March 1953 to 26 November 19531954: 17 February 1954 to 3 July 19541955: 19 January 1955 to 2 June 19551956: 30 March 1956 to 17 August 19561957: 7 January 1957 to 10 July 19571958: 12 February 1958 to 10 August 19581959: 28 February 1959 to 10 August 19591960: 5 March 1960 to 26 August 19601961: 16 January 1961 to 24 September 19611962: 9 February 1962 to 18 December 19621963: 12 February 1963 to 25 December 19631964: 5 January 1964 to 25 July 19641965: 24 January 1965 to 28 December 19651966: 26 January 1966 to 19 December 19661967: 5 February 1967 to 27 December 19671968: 4 March 1968 to 6 July 19681969: 22 January 1969 to 23 July 19691970: 22 January 1970 to 4 August 197019231934194119461951195619611966JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Boa Vista (Ledo) meeting 10 mm (0.39 in).
First to last qualifying date each year at Boa Vista (Ledo)
YearFirst dateLast date
19231923-01-131923-07-29
19241924-01-251924-08-25
19251925-01-181925-12-28
19311931-02-201931-12-01
19331933-02-151933-06-30
19341934-02-221934-12-21
19351935-01-011935-07-07
19361936-01-011936-07-04
19391939-03-161939-11-14
19401940-01-311940-07-27
19411941-02-131941-09-01
19421942-02-131942-07-21
19431943-01-261943-08-08
19441944-03-071944-07-10
19451945-01-081945-08-25
19461946-02-121946-12-22
19471947-01-221947-11-25
19481948-03-051948-09-03
19491949-04-211949-11-27
19501950-02-051950-04-16
19511951-03-211951-05-05
19521952-03-181952-06-12
19531953-03-261953-11-26
19541954-02-171954-07-03
19551955-01-191955-06-02
19561956-03-301956-08-17
19571957-01-071957-07-10
19581958-02-121958-08-10
19591959-02-281959-08-10
19601960-03-051960-08-26
19611961-01-161961-09-24
19621962-02-091962-12-18
19631963-02-121963-12-25
19641964-01-051964-07-25
19651965-01-241965-12-28
19661966-01-261966-12-19
19671967-02-051967-12-27
19681968-03-041968-07-06
19691969-01-221969-07-23
19701970-01-221970-08-04

Every Fixed Threshold

Fixed thresholds at Boa Vista (Ledo)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain403619248
25 mm (0.98 in): Days with 25 mm or more rain391119245
50 mm (1.97 in): Days with 50 mm or more rain22319391
100 mm (3.94 in): Days with 100 mm or more rain4119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Boa Vista (Ledo) 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).