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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

St Sebastien Threshold Days by Year (CA007027725)

12 fixed thresholds counted per year at St Sebastien (CA007027725): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Sebastien Thresholds

  • St Sebastien: days with 10 cm (3.9 in) or more of snowfall in 18 years, most in 1976 with 15.
  • St Sebastien: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1976 with 50.
  • St Sebastien: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1976 with 9.
  • St Sebastien: days with a maximum temperature at or below 0 C (32 F) in 10 years, most in 1980 with 115.
  • 12 fixed thresholds have at least one qualifying day at St Sebastien.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at St Sebastien Days per year at St Sebastien with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1979. 011221977: 11978: 11979: 21983: 11977197819791983
Days per year at St Sebastien with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1979.
Days at or above 30 C (86 F) per year at St Sebastien
YearDaysDecade average
197711.3
197811.3
197921.3
198311
First to last qualifying date each year at St Sebastien For each year, a bar from the first to the last day at St Sebastien meeting 30 C (86 F). 1977: 20 July 1977 to 20 July 19771978: 8 July 1978 to 8 July 19781979: 24 July 1979 to 25 July 19791983: 4 July 1983 to 4 July 19831977197819791983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Sebastien meeting 30 C (86 F).
First to last qualifying date each year at St Sebastien
YearFirst dateLast date
19771977-07-201977-07-20
19781978-07-081978-07-08
19791979-07-241979-07-25
19831983-07-041983-07-04

Every Fixed Threshold

Fixed thresholds at St Sebastien
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4219791
0 C (32 F): Ice days (max10115198091
0 C (32 F): Frost days (min102111974197
-10 C (14 F): Days with min10107197883
-20 C (-4 F): Days with min1050197628
-30 C (-22 F): Days with min91119823
20 C (68 F): Tropical nights (min5819771
10 mm (0.39 in): Days with 10 mm or more rain1650197641
25 mm (0.98 in): Days with 25 mm or more rain16919767
50 mm (1.97 in): Days with 50 mm or more rain5119741
10 cm (3.9 in): Days with 10 cm or more snowfall1815197612
25 cm (9.8 in): Days with 25 cm or more snowfall8219762

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for St Sebastien 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 (2026-10-17).