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

Imperatriz Threshold Days by Year (BR036150060)

5 fixed thresholds counted per year at Imperatriz (BR036150060): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Imperatriz Thresholds

  • Imperatriz: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1973 with 52.
  • Imperatriz: days with 25 mm (0.98 in) or more of precipitation in 11 years, most in 1973 with 25.
  • Imperatriz: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1971 with 9.
  • Imperatriz: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1973 with 1.
  • 5 fixed thresholds have at least one qualifying day at Imperatriz.
11 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Imperatriz Days per year at Imperatriz with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1973. 02040601967: 511968: 381969: 331971: 411973: 521974: 521975: 451976: 361977: 371978: 311979: 32196719691973197519771979
Days per year at Imperatriz with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1973.
Days with 10 mm (0.39 in) or more of precipitation per year at Imperatriz
YearDaysDecade average
19675140.7
19683840.7
19693340.7
19714140.8
19735240.8
19745240.8
19754540.8
19763640.8
19773740.8
19783140.8
19793240.8
First to last qualifying date each year at Imperatriz For each year, a bar from the first to the last day at Imperatriz meeting 10 mm (0.39 in). 1967: 17 January 1967 to 30 December 19671968: 3 February 1968 to 30 December 19681969: 1 January 1969 to 22 December 19691971: 10 January 1971 to 31 December 19711973: 2 January 1973 to 24 December 19731974: 14 January 1974 to 31 December 19741975: 4 January 1975 to 29 December 19751976: 4 January 1976 to 21 December 19761977: 1 January 1977 to 31 December 19771978: 7 January 1978 to 29 December 19781979: 14 January 1979 to 18 November 1979196719691973197519771979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Imperatriz meeting 10 mm (0.39 in).
First to last qualifying date each year at Imperatriz
YearFirst dateLast date
19671967-01-171967-12-30
19681968-02-031968-12-30
19691969-01-011969-12-22
19711971-01-101971-12-31
19731973-01-021973-12-24
19741974-01-141974-12-31
19751975-01-041975-12-29
19761976-01-041976-12-21
19771977-01-011977-12-31
19781978-01-071978-12-29
19791979-01-141979-11-18

Every Fixed Threshold

Fixed thresholds at Imperatriz
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1152197332
25 mm (0.98 in): Days with 25 mm or more rain1125197313
50 mm (1.97 in): Days with 50 mm or more rain11919716
100 mm (3.94 in): Days with 100 mm or more rain2119731
200 mm (7.87 in): Days with 200 mm or more rain1119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for Imperatriz 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).