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

Tanna Threshold Days by Year (NHM00091565)

6 fixed thresholds counted per year at Tanna (NHM00091565): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tanna Thresholds

  • 6 fixed thresholds have at least one qualifying day at Tanna.
4 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Tanna Days per year at Tanna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. 01020301991: 221992: 201995: 282025: 301991199219952025
Days per year at Tanna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line.
Days with 10 mm (0.39 in) or more of precipitation per year at Tanna
YearDaysDecade average
19912223.3
19922023.3
19952823.3
20253030
First to last qualifying date each year at Tanna For each year, a bar from the first to the last day at Tanna meeting 10 mm (0.39 in). 1991: 15 January 1991 to 29 December 19911992: 9 January 1992 to 24 December 19921995: 13 January 1995 to 31 December 19952025: 3 January 2025 to 16 August 20251991199219952025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tanna meeting 10 mm (0.39 in).
First to last qualifying date each year at Tanna
YearFirst dateLast date
19911991-01-151991-12-29
19921992-01-091992-12-24
19951995-01-131995-12-31
20252025-01-032025-08-16

Every Fixed Threshold

Fixed thresholds at Tanna
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days10n/a3
20 C (68 F): Tropical nights (min30n/a15
10 mm (0.39 in): Days with 10 mm or more rain40n/a30
25 mm (0.98 in): Days with 25 mm or more rain40n/a13
50 mm (1.97 in): Days with 50 mm or more rain40n/a4
100 mm (3.94 in): Days with 100 mm or more rain20n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.

Download the Data

  • Data for Tanna 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).