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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Alfredo Graca Threshold Days by Year

4 fixed thresholds counted per year at Alfredo Graca (BR001742002): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alfredo Graca Thresholds

  • Alfredo Graca: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1979 with 57.
  • Alfredo Graca: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1969 with 19.
  • Alfredo Graca: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1979 with 11.
  • Alfredo Graca: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1969 with 1.
  • 4 fixed thresholds have at least one qualifying day at Alfredo Graca.
22 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Alfredo Graca Days per year at Alfredo Graca with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1979. 02040601949: 211952: 321953: 271954: 181957: 311958: 271966: 291967: 331968: 321969: 361970: 321971: 211972: 251973: 231974: 201975: 321976: 221977: 251978: 351979: 571980: 271982: 1719491954196619691972197519781982
Days per year at Alfredo Graca with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1979.
Days with 10 mm (0.39 in) or more of precipitation per year at Alfredo Graca
YearDaysDecade average
19492121
19523227
19532727
19541827
19573127
19582727
19662932.5
19673332.5
19683232.5
19693632.5
19703229.2
19712129.2
19722529.2
19732329.2
19742029.2
19753229.2
19762229.2
19772529.2
19783529.2
19795729.2
19802722
19821722
First to last qualifying date each year at Alfredo Graca For each year, a bar from the first to the last day at Alfredo Graca meeting 10 mm (0.39 in). 1949: 2 January 1949 to 21 December 19491952: 2 January 1952 to 24 December 19521953: 14 January 1953 to 31 December 19531954: 4 February 1954 to 27 November 19541957: 7 January 1957 to 21 December 19571958: 19 January 1958 to 29 December 19581966: 2 January 1966 to 29 December 19661967: 19 January 1967 to 30 December 19671968: 16 January 1968 to 15 December 19681969: 19 January 1969 to 27 December 19691970: 2 January 1970 to 19 December 19701971: 16 January 1971 to 25 December 19711972: 14 January 1972 to 24 December 19721973: 18 January 1973 to 27 December 19731974: 3 January 1974 to 29 December 19741975: 3 January 1975 to 16 December 19751976: 1 February 1976 to 20 December 19761977: 19 January 1977 to 25 December 19771978: 3 January 1978 to 19 December 19781979: 5 January 1979 to 29 December 19791980: 4 January 1980 to 28 December 19801982: 2 January 1982 to 23 December 198219491954196619691972197519781982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alfredo Graca meeting 10 mm (0.39 in).
First to last qualifying date each year at Alfredo Graca
YearFirst dateLast date
19491949-01-021949-12-21
19521952-01-021952-12-24
19531953-01-141953-12-31
19541954-02-041954-11-27
19571957-01-071957-12-21
19581958-01-191958-12-29
19661966-01-021966-12-29
19671967-01-191967-12-30
19681968-01-161968-12-15
19691969-01-191969-12-27
19701970-01-021970-12-19
19711971-01-161971-12-25
19721972-01-141972-12-24
19731973-01-181973-12-27
19741974-01-031974-12-29
19751975-01-031975-12-16
19761976-02-011976-12-20
19771977-01-191977-12-25
19781978-01-031978-12-19
19791979-01-051979-12-29
19801980-01-041980-12-28
19821982-01-021982-12-23

Every Fixed Threshold

Fixed thresholds at Alfredo Graca
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2257197917
25 mm (0.98 in): Days with 25 mm or more rain221919692
50 mm (1.97 in): Days with 50 mm or more rain201119791
100 mm (3.94 in): Days with 100 mm or more rain2119691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Alfredo Graca 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).