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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Altamira Threshold Days by Year (BR000352000)

4 fixed thresholds counted per year at Altamira (BR000352000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altamira Thresholds

  • Altamira: days with 10 mm (0.39 in) or more of precipitation in 4 years, most in 1970 with 72.
  • Altamira: days with 25 mm (0.98 in) or more of precipitation in 4 years, most in 1971 with 30.
  • Altamira: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1971 with 12.
  • Altamira: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1971 with 4.
  • 4 fixed thresholds have at least one qualifying day at Altamira.
4 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Altamira Days per year at Altamira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 72 in 1970. 0204060801969: 571970: 721971: 711988: 691969197019711988
Days per year at Altamira with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 72 in 1970.
Days with 10 mm (0.39 in) or more of precipitation per year at Altamira
YearDaysDecade average
19695757
19707271.5
19717171.5
19886969
First to last qualifying date each year at Altamira For each year, a bar from the first to the last day at Altamira meeting 10 mm (0.39 in). 1969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 28 December 19701971: 4 January 1971 to 29 December 19711988: 3 January 1988 to 22 December 19881969197019711988JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Altamira meeting 10 mm (0.39 in).
First to last qualifying date each year at Altamira
YearFirst dateLast date
19691969-01-011969-12-31
19701970-01-011970-12-28
19711971-01-041971-12-29
19881988-01-031988-12-22

Every Fixed Threshold

Fixed thresholds at Altamira
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain472197069
25 mm (0.98 in): Days with 25 mm or more rain430197127
50 mm (1.97 in): Days with 50 mm or more rain41219714
100 mm (3.94 in): Days with 100 mm or more rain2419714

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Altamira 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 (2026-10-17).