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Built 2026-10-18 (18 October 2026)

St Hilarion Threshold Days by Year

15 fixed thresholds counted per year at St Hilarion (CA00704GC09): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Hilarion Thresholds

  • St Hilarion: days with a maximum temperature at or below 0 C (32 F) in 15 years, most in 1976 with 142.
  • St Hilarion: nights with a minimum temperature at or below 0 C (32 F) in 15 years, most in 1972 with 214.
  • St Hilarion: nights with a minimum temperature at or below -10 C (14 F) in 15 years, most in 1972 with 113.
  • St Hilarion: nights with a minimum temperature at or below -20 C (-4 F) in 15 years, most in 1976 with 46.
  • 15 fixed thresholds have at least one qualifying day at St Hilarion.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at St Hilarion Days per year at St Hilarion with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 1975. 012341969: 11970: 31975: 41976: 31977: 41978: 11979: 11981: 11983: 4196919701975197619771978197919811983
Days per year at St Hilarion with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 1975.
Days at or above 30 C (86 F) per year at St Hilarion
YearDaysDecade average
196911
197032.7
197542.7
197632.7
197742.7
197812.7
197912.7
198112.5
198342.5
First to last qualifying date each year at St Hilarion For each year, a bar from the first to the last day at St Hilarion meeting 30 C (86 F). 1969: 16 July 1969 to 16 July 19691970: 23 July 1970 to 15 August 19701975: 23 June 1975 to 2 August 19751976: 6 June 1976 to 21 August 19761977: 22 May 1977 to 20 July 19771978: 27 May 1978 to 27 May 19781979: 9 July 1979 to 9 July 19791981: 8 July 1981 to 8 July 19811983: 21 June 1983 to 4 July 198319691975197719791983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Hilarion meeting 30 C (86 F).
First to last qualifying date each year at St Hilarion
YearFirst dateLast date
19691969-07-161969-07-16
19701970-07-231970-08-15
19751975-06-231975-08-02
19761976-06-061976-08-21
19771977-05-221977-07-20
19781978-05-271978-05-27
19791979-07-091979-07-09
19811981-07-081981-07-08
19831983-06-211983-07-04

Every Fixed Threshold

Fixed thresholds at St Hilarion
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days9419754
35 C (95 F): Days1119751
90 F (32.2 C): Days1219752
0 C (32 F): Ice days (max151421976111
0 C (32 F): Frost days (min152141972180
-10 C (14 F): Days with min15113197283
-20 C (-4 F): Days with min1546197624
-30 C (-22 F): Days with min12719791
20 C (68 F): Tropical nights (min12619762
10 mm (0.39 in): Days with 10 mm or more rain1558198358
25 mm (0.98 in): Days with 25 mm or more rain1515198315
50 mm (1.97 in): Days with 50 mm or more rain12419734
10 cm (3.9 in): Days with 10 cm or more snowfall1523197223
25 cm (9.8 in): Days with 25 cm or more snowfall13619726
50 cm (19.7 in): Days with 50 cm or more snowfall4219691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for St Hilarion 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).