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

Ustica Island Threshold Days by Year (ITM00016400)

10 fixed thresholds counted per year at Ustica Island (ITM00016400): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ustica Island Thresholds

  • Ustica Island: days with 10 mm (0.39 in) or more of precipitation in 10 years, most in 2005 with 18.
  • Ustica Island: days with 25 mm (0.98 in) or more of precipitation in 10 years, most in 2008 with 3.
  • Ustica Island: days with a maximum temperature at or above 30 C (86 F) in 9 years, most in 2007 with 45.
  • Ustica Island: days with a maximum temperature at or above 90 F (32.2 C) in 7 years, most in 2007 with 19.
  • 10 fixed thresholds have at least one qualifying day at Ustica Island.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Ustica Island Days per year at Ustica Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 2007. 02040601958: 61967: 51968: 41969: 21970: 72005: 332007: 452008: 432025: 10195819671968196919702005200720082025
Days per year at Ustica Island with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 2007.
Days at or above 30 C (86 F) per year at Ustica Island
YearDaysDecade average
195866
196753.7
196843.7
196923.7
197077
20053340.3
20074540.3
20084340.3
20251010
First to last qualifying date each year at Ustica Island For each year, a bar from the first to the last day at Ustica Island meeting 30 C (86 F). 1958: 3 July 1958 to 12 August 19581967: 23 July 1967 to 10 August 19671968: 9 July 1968 to 16 September 19681969: 14 August 1969 to 15 August 19691970: 6 June 1970 to 12 September 19702005: 24 June 2005 to 8 September 20052007: 19 June 2007 to 18 September 20072008: 17 June 2008 to 12 September 20082025: 14 June 2025 to 9 August 202519581968197020072025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ustica Island meeting 30 C (86 F).
First to last qualifying date each year at Ustica Island
YearFirst dateLast date
19581958-07-031958-08-12
19671967-07-231967-08-10
19681968-07-091968-09-16
19691969-08-141969-08-15
19701970-06-061970-09-12
20052005-06-242005-09-08
20072007-06-192007-09-18
20082008-06-172008-09-12
20252025-06-142025-08-09

Every Fixed Threshold

Fixed thresholds at Ustica Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days945200710
35 C (95 F): Days3820071
90 F (32.2 C): Days71920071
100 F (37.8 C): Days1120071
20 C (68 F): Tropical nights (min292195832
25 C (77 F): Days with min10n/a1
10 mm (0.39 in): Days with 10 mm or more rain1018200521
25 mm (0.98 in): Days with 25 mm or more rain10320086
50 mm (1.97 in): Days with 50 mm or more rain5120051
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Ustica Island 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).