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

Mercura Threshold Days by Year (ASN00043062)

4 fixed thresholds counted per year at Mercura (ASN00043062): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mercura Thresholds

  • Mercura: days with 10 mm (0.39 in) or more of precipitation in 7 years, most in 1974 with 29.
  • Mercura: days with 25 mm (0.98 in) or more of precipitation in 7 years, most in 1970 with 9.
  • Mercura: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1974 with 3.
  • Mercura: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1970 with 1.
  • 4 fixed thresholds have at least one qualifying day at Mercura.
7 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mercura Days per year at Mercura with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1974. 01020301969: 221970: 231971: 251972: 151974: 291975: 241976: 201969197019711972197419751976
Days per year at Mercura with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Mercura
YearDaysDecade average
19692222
19702322.7
19712522.7
19721522.7
19742922.7
19752422.7
19762022.7
First to last qualifying date each year at Mercura For each year, a bar from the first to the last day at Mercura meeting 10 mm (0.39 in). 1969: 8 January 1969 to 28 December 19691970: 12 January 1970 to 25 December 19701971: 13 January 1971 to 27 December 19711972: 13 January 1972 to 24 November 19721974: 1 January 1974 to 27 December 19741975: 2 January 1975 to 28 December 19751976: 12 January 1976 to 22 December 19761969197019711972197419751976JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mercura meeting 10 mm (0.39 in).
First to last qualifying date each year at Mercura
YearFirst dateLast date
19691969-01-081969-12-28
19701970-01-121970-12-25
19711971-01-131971-12-27
19721972-01-131972-11-24
19741974-01-011974-12-27
19751975-01-021975-12-28
19761976-01-121976-12-22

Every Fixed Threshold

Fixed thresholds at Mercura
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain729197420
25 mm (0.98 in): Days with 25 mm or more rain7919704
50 mm (1.97 in): Days with 50 mm or more rain5319741
100 mm (3.94 in): Days with 100 mm or more rain2119701

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 Mercura 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).