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

Uniao Threshold Days by Year (BR001755001)

4 fixed thresholds counted per year at Uniao (BR001755001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Uniao Thresholds

  • Uniao: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1972 with 50.
  • Uniao: days with 25 mm (0.98 in) or more of precipitation in 11 years, most in 1972 with 21.
  • Uniao: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1994 with 8.
  • Uniao: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1983 with 3.
  • 4 fixed thresholds have at least one qualifying day at Uniao.
11 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Uniao Days per year at Uniao with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1972. 02040601969: 271971: 331972: 501981: 351983: 331993: 341994: 351996: 351997: 411998: 301999: 25196919721983199419971999
Days per year at Uniao with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1972.
Days with 10 mm (0.39 in) or more of precipitation per year at Uniao
YearDaysDecade average
19692727
19713341.5
19725041.5
19813534
19833334
19933433.3
19943533.3
19963533.3
19974133.3
19983033.3
19992533.3
First to last qualifying date each year at Uniao For each year, a bar from the first to the last day at Uniao meeting 10 mm (0.39 in). 1969: 16 January 1969 to 24 December 19691971: 16 January 1971 to 31 December 19711972: 7 January 1972 to 28 December 19721981: 2 January 1981 to 23 December 19811983: 6 January 1983 to 10 December 19831993: 7 January 1993 to 29 December 19931994: 9 January 1994 to 30 December 19941996: 22 January 1996 to 31 December 19961997: 1 January 1997 to 23 December 19971998: 8 January 1998 to 29 December 19981999: 4 January 1999 to 6 December 1999196919721983199419971999JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Uniao meeting 10 mm (0.39 in).
First to last qualifying date each year at Uniao
YearFirst dateLast date
19691969-01-161969-12-24
19711971-01-161971-12-31
19721972-01-071972-12-28
19811981-01-021981-12-23
19831983-01-061983-12-10
19931993-01-071993-12-29
19941994-01-091994-12-30
19961996-01-221996-12-31
19971997-01-011997-12-23
19981998-01-081998-12-29
19991999-01-041999-12-06

Every Fixed Threshold

Fixed thresholds at Uniao
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1150197225
25 mm (0.98 in): Days with 25 mm or more rain112119729
50 mm (1.97 in): Days with 50 mm or more rain11819943
100 mm (3.94 in): Days with 100 mm or more rain3319831

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 Uniao 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).