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

Heron Bay Threshold Days by Year (CA006043458)

13 fixed thresholds counted per year at Heron Bay (CA006043458): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Heron Bay Thresholds

  • Heron Bay: days with 10 mm (0.39 in) or more of precipitation in 15 years, most in 1901 with 33.
  • Heron Bay: days with 10 cm (3.9 in) or more of snowfall in 15 years, most in 1916 with 11.
  • Heron Bay: days with 25 mm (0.98 in) or more of precipitation in 14 years, most in 1901 with 8.
  • Heron Bay: days with 25 cm (9.8 in) or more of snowfall in 6 years, most in 1917 with 4.
  • 13 fixed thresholds have at least one qualifying day at Heron Bay.
4 years with a qualifying day
Nights at or below 0 C (32 F) per year at Heron Bay Days per year at Heron Bay with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 268 in 1917. 01002003001914: 1961915: 2141916: 2231917: 2681914191519161917
Days per year at Heron Bay with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 268 in 1917.
Nights at or below 0 C (32 F) per year at Heron Bay
YearDaysDecade average
1914196225.3
1915214225.3
1916223225.3
1917268225.3
First to last qualifying date each year at Heron Bay For each year, a bar from the first to the last day at Heron Bay meeting 0 C (32 F). 1914: 1 January 1914 to 31 December 19141915: 1 January 1915 to 31 December 19151916: 1 January 1916 to 31 December 19161917: 1 January 1917 to 30 December 19171914191519161917JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Heron Bay meeting 0 C (32 F).
First to last qualifying date each year at Heron Bay
YearFirst dateLast date
19141914-01-011914-12-31
19151915-01-011915-12-31
19161916-01-011916-12-31
19171917-01-011917-12-30

Every Fixed Threshold

Fixed thresholds at Heron Bay
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max41441917144
0 C (32 F): Frost days (min42681917268
-10 C (14 F): Days with min41221917122
-20 C (-4 F): Days with min482191782
-30 C (-22 F): Days with min433191733
-40 C (-40 F): Days with min3419174
20 C (68 F): Tropical nights (min1119161
10 mm (0.39 in): Days with 10 mm or more rain1533190131
25 mm (0.98 in): Days with 25 mm or more rain14819015
50 mm (1.97 in): Days with 50 mm or more rain2118951
10 cm (3.9 in): Days with 10 cm or more snowfall1511191612
25 cm (9.8 in): Days with 25 cm or more snowfall6419172
50 cm (19.7 in): Days with 50 cm or more snowfall2118951

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

  • Data for Heron Bay 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).