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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Alto Longa Threshold Days by Year (BR037055580)

4 fixed thresholds counted per year at Alto Longa (BR037055580): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Alto Longa Thresholds

  • Alto Longa: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1968 with 79.
  • Alto Longa: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1917 with 32.
  • Alto Longa: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1974 with 17.
  • Alto Longa: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1972 with 2.
  • 4 fixed thresholds have at least one qualifying day at Alto Longa.
23 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Alto Longa Days per year at Alto Longa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1968. 0204060801913: 681914: 591915: 141916: 461917: 621918: 451919: 221920: 471921: 571922: 431923: 401927: 361963: 381964: 701965: 471966: 511967: 641968: 791969: 491970: 351971: 441972: 401974: 6119131916191919221963196619691972
Days per year at Alto Longa with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 79 in 1968.
Days with 10 mm (0.39 in) or more of precipitation per year at Alto Longa
YearDaysDecade average
19136845.1
19145945.1
19151445.1
19164645.1
19176245.1
19184545.1
19192245.1
19204744.6
19215744.6
19224344.6
19234044.6
19273644.6
19633856.9
19647056.9
19654756.9
19665156.9
19676456.9
19687956.9
19694956.9
19703545
19714445
19724045
19746145
First to last qualifying date each year at Alto Longa For each year, a bar from the first to the last day at Alto Longa meeting 10 mm (0.39 in). 1913: 29 January 1913 to 15 December 19131914: 10 January 1914 to 29 December 19141915: 22 January 1915 to 19 December 19151916: 15 January 1916 to 31 December 19161917: 2 January 1917 to 30 December 19171918: 2 January 1918 to 31 December 19181919: 2 January 1919 to 30 December 19191920: 1 January 1920 to 29 December 19201921: 1 January 1921 to 25 December 19211922: 13 January 1922 to 26 December 19221923: 2 January 1923 to 26 November 19231927: 4 January 1927 to 18 December 19271963: 15 January 1963 to 29 December 19631964: 2 January 1964 to 27 December 19641965: 7 January 1965 to 24 December 19651966: 13 January 1966 to 31 December 19661967: 19 January 1967 to 31 December 19671968: 22 January 1968 to 30 December 19681969: 6 January 1969 to 29 December 19691970: 14 January 1970 to 25 December 19701971: 7 January 1971 to 24 December 19711972: 8 January 1972 to 31 December 19721974: 14 January 1974 to 23 December 197419131916191919221963196619691972JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Alto Longa meeting 10 mm (0.39 in).
First to last qualifying date each year at Alto Longa
YearFirst dateLast date
19131913-01-291913-12-15
19141914-01-101914-12-29
19151915-01-221915-12-19
19161916-01-151916-12-31
19171917-01-021917-12-30
19181918-01-021918-12-31
19191919-01-021919-12-30
19201920-01-011920-12-29
19211921-01-011921-12-25
19221922-01-131922-12-26
19231923-01-021923-11-26
19271927-01-041927-12-18
19631963-01-151963-12-29
19641964-01-021964-12-27
19651965-01-071965-12-24
19661966-01-131966-12-31
19671967-01-191967-12-31
19681968-01-221968-12-30
19691969-01-061969-12-29
19701970-01-141970-12-25
19711971-01-071971-12-24
19721972-01-081972-12-31
19741974-01-141974-12-23

Every Fixed Threshold

Fixed thresholds at Alto Longa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2379196861
25 mm (0.98 in): Days with 25 mm or more rain2332191727
50 mm (1.97 in): Days with 50 mm or more rain2117197417
100 mm (3.94 in): Days with 100 mm or more rain4219721

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Alto Longa 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).