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

St Lawrence Threshold Days by Year (CA008403619)

4 fixed thresholds counted per year at St Lawrence (CA008403619): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Lawrence Thresholds

  • 4 fixed thresholds have at least one qualifying day at St Lawrence.
6 years with a qualifying day
Nights at or below 0 C (32 F) per year at St Lawrence Days per year at St Lawrence with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. 0204060801978: 511979: 621980: 471981: 361982: 771983: 36197819791980198119821983
Days per year at St Lawrence with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line.
Nights at or below 0 C (32 F) per year at St Lawrence
YearDaysDecade average
19785156.5
19796256.5
19804749
19813649
19827749
19833649
First to last qualifying date each year at St Lawrence For each year, a bar from the first to the last day at St Lawrence meeting 0 C (32 F). 1978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 16 December 19791980: 5 January 1980 to 19 December 19801981: 27 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 1 January 1983 to 28 December 1983197819791980198119821983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Lawrence meeting 0 C (32 F).
First to last qualifying date each year at St Lawrence
YearFirst dateLast date
19781978-01-011978-12-31
19791979-01-011979-12-16
19801980-01-051980-12-19
19811981-01-271981-12-31
19821982-01-011982-12-31
19831983-01-011983-12-28

Every Fixed Threshold

Fixed thresholds at St Lawrence
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Frost days (min60n/a36
10 mm (0.39 in): Days with 10 mm or more rain20n/a54
25 mm (0.98 in): Days with 25 mm or more rain20n/a14
50 mm (1.97 in): Days with 50 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 1978.

Download the Data

  • Data for St Lawrence 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).