Built 2026-10-19 (19 October 2026)

Alagoa Threshold Days by Year (BR002244065)

4 fixed thresholds counted per year at Alagoa (BR002244065): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alagoa Thresholds

  • Alagoa: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1983 with 94.
  • Alagoa: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1983 with 42.
  • Alagoa: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1981 with 9.
  • Alagoa: days with 100 mm (3.94 in) or more of precipitation in 16 years, most in 1992 with 3.
  • 4 fixed thresholds have at least one qualifying day at Alagoa.
36 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Alagoa Days per year at Alagoa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 94 in 1983. 02550751001943: 471944: 601945: 671946: 391947: 601948: 511949: 531950: 651972: 591973: 521974: 451975: 581976: 791977: 581978: 511979: 641980: 651981: 681982: 651983: 941984: 441985: 671986: 631987: 611988: 621989: 561990: 451991: 501992: 601993: 571994: 491995: 561996: 641997: 611998: 521999: 55194319471972197619801984198819921996
Days per year at Alagoa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 94 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Alagoa
YearDaysDecade average
19434753.9
19446053.9
19456753.9
19463953.9
19476053.9
19485153.9
19495353.9
19506565
19725958.3
19735258.3
19744558.3
19755858.3
19767958.3
19775858.3
19785158.3
19796458.3
19806564.5
19816864.5
19826564.5
19839464.5
19844464.5
19856764.5
19866364.5
19876164.5
19886264.5
19895664.5
19904554.9
19915054.9
19926054.9
19935754.9
19944954.9
19955654.9
19966454.9
19976154.9
19985254.9
19995554.9
First to last qualifying date each year at Alagoa For each year, a bar from the first to the last day at Alagoa meeting 10 mm (0.39 in). 1943: 3 January 1943 to 23 December 19431944: 1 January 1944 to 29 December 19441945: 2 January 1945 to 31 December 19451946: 1 January 1946 to 26 December 19461947: 1 January 1947 to 29 December 19471948: 10 January 1948 to 30 December 19481949: 8 January 1949 to 25 December 19491950: 3 January 1950 to 31 December 19501972: 3 January 1972 to 31 December 19721973: 2 January 1973 to 31 December 19731974: 1 January 1974 to 30 December 19741975: 1 January 1975 to 29 December 19751976: 4 January 1976 to 28 December 19761977: 3 January 1977 to 27 December 19771978: 2 January 1978 to 30 December 19781979: 2 January 1979 to 27 December 19791980: 1 January 1980 to 30 December 19801981: 2 January 1981 to 28 December 19811982: 2 January 1982 to 31 December 19821983: 1 January 1983 to 28 December 19831984: 22 January 1984 to 28 December 19841985: 3 January 1985 to 31 December 19851986: 2 January 1986 to 30 December 19861987: 4 January 1987 to 30 December 19871988: 1 January 1988 to 30 December 19881989: 3 January 1989 to 31 December 19891990: 1 January 1990 to 28 December 19901991: 4 January 1991 to 31 December 19911992: 3 January 1992 to 18 December 19921993: 7 January 1993 to 31 December 19931994: 2 January 1994 to 27 December 19941995: 4 January 1995 to 30 December 19951996: 2 January 1996 to 31 December 19961997: 3 January 1997 to 29 December 19971998: 5 January 1998 to 26 December 19981999: 1 January 1999 to 28 December 199919431948197419791984198919941999JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alagoa meeting 10 mm (0.39 in).
First to last qualifying date each year at Alagoa
YearFirst dateLast date
19431943-01-031943-12-23
19441944-01-011944-12-29
19451945-01-021945-12-31
19461946-01-011946-12-26
19471947-01-011947-12-29
19481948-01-101948-12-30
19491949-01-081949-12-25
19501950-01-031950-12-31
19721972-01-031972-12-31
19731973-01-021973-12-31
19741974-01-011974-12-30
19751975-01-011975-12-29
19761976-01-041976-12-28
19771977-01-031977-12-27
19781978-01-021978-12-30
19791979-01-021979-12-27
19801980-01-011980-12-30
19811981-01-021981-12-28
19821982-01-021982-12-31
19831983-01-011983-12-28
19841984-01-221984-12-28
19851985-01-031985-12-31
19861986-01-021986-12-30
19871987-01-041987-12-30
19881988-01-011988-12-30
19891989-01-031989-12-31
19901990-01-011990-12-28
19911991-01-041991-12-31
19921992-01-031992-12-18
19931993-01-071993-12-31
19941994-01-021994-12-27
19951995-01-041995-12-30
19961996-01-021996-12-31
19971997-01-031997-12-29
19981998-01-051998-12-26
19991999-01-011999-12-28

Every Fixed Threshold

Fixed thresholds at Alagoa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3694198355
25 mm (0.98 in): Days with 25 mm or more rain3642198319
50 mm (1.97 in): Days with 50 mm or more rain34919812
100 mm (3.94 in): Days with 100 mm or more rain16319921

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

  • Data for Alagoa 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).