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

Trieste Threshold Days by Year (ITM00016110)

10 fixed thresholds counted per year at Trieste (ITM00016110): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Trieste Thresholds

  • Trieste: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1975 with 36.
  • Trieste: days with 25 mm (0.98 in) or more of precipitation in 10 years, most in 1975 with 13.
  • Trieste: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1975 with 2.
  • Trieste: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 1970 with 34.
  • 10 fixed thresholds have at least one qualifying day at Trieste.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Trieste Days per year at Trieste with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1970. 0102030401967: 291969: 191970: 341975: 91985: 262025: 23196719691970197519852025
Days per year at Trieste with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1970.
Days at or above 30 C (86 F) per year at Trieste
YearDaysDecade average
19672924
19691924
19703421.5
1975921.5
19852626
20252323
First to last qualifying date each year at Trieste For each year, a bar from the first to the last day at Trieste meeting 30 C (86 F). 1967: 30 June 1967 to 21 August 19671969: 18 July 1969 to 17 August 19691970: 17 June 1970 to 20 August 19701975: 11 July 1975 to 10 August 19751985: 6 July 1985 to 25 August 19852025: 12 June 2025 to 24 July 2025196719691970197519852025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Trieste meeting 30 C (86 F).
First to last qualifying date each year at Trieste
YearFirst dateLast date
19671967-06-301967-08-21
19691969-07-181969-08-17
19701970-06-171970-08-20
19751975-07-111975-08-10
19851985-07-061985-08-25
20252025-06-122025-07-24

Every Fixed Threshold

Fixed thresholds at Trieste
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days634197023
35 C (95 F): Days3219851
90 F (32.2 C): Days51019708
0 C (32 F): Ice days (max1419854
0 C (32 F): Frost days (min117196717
20 C (68 F): Tropical nights (min254196719
25 C (77 F): Days with min10n/a2
10 mm (0.39 in): Days with 10 mm or more rain113619751
25 mm (0.98 in): Days with 25 mm or more rain101319759
50 mm (1.97 in): Days with 50 mm or more rain8219752

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 Trieste 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).