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

Truro Threshold Days by Year (CA008205990)

14 fixed thresholds counted per year at Truro (CA008205990): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Truro Thresholds

  • Truro: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1978 with 76.
  • Truro: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1965 with 219.
  • Truro: nights with a minimum temperature at or below -10 C (14 F) in 23 years, most in 1978 with 78.
  • Truro: nights with a minimum temperature at or below -20 C (-4 F) in 23 years, most in 1975 with 23.
  • 14 fixed thresholds have at least one qualifying day at Truro.
13 years with a qualifying day
Days at or above 30 C (86 F) per year at Truro Days per year at Truro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1975. 02461961: 11963: 21965: 41966: 11968: 11969: 21970: 11971: 11972: 31975: 61976: 21977: 21982: 21961196519681970197219761982
Days per year at Truro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 6 in 1975.
Days at or above 30 C (86 F) per year at Truro
YearDaysDecade average
196111.8
196321.8
196541.8
196611.8
196811.8
196921.8
197012.5
197112.5
197232.5
197562.5
197622.5
197722.5
198222
First to last qualifying date each year at Truro For each year, a bar from the first to the last day at Truro meeting 30 C (86 F). 1961: 10 August 1961 to 10 August 19611963: 14 July 1963 to 28 July 19631965: 21 June 1965 to 10 August 19651966: 2 August 1966 to 2 August 19661968: 19 July 1968 to 19 July 19681969: 13 June 1969 to 18 July 19691970: 25 July 1970 to 25 July 19701971: 3 August 1971 to 3 August 19711972: 3 July 1972 to 16 July 19721975: 15 July 1975 to 11 August 19751976: 16 June 1976 to 22 August 19761977: 29 June 1977 to 17 July 19771982: 19 July 1982 to 20 July 19821961196519681970197219761982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Truro meeting 30 C (86 F).
First to last qualifying date each year at Truro
YearFirst dateLast date
19611961-08-101961-08-10
19631963-07-141963-07-28
19651965-06-211965-08-10
19661966-08-021966-08-02
19681968-07-191968-07-19
19691969-06-131969-07-18
19701970-07-251970-07-25
19711971-08-031971-08-03
19721972-07-031972-07-16
19751975-07-151975-08-11
19761976-06-161976-08-22
19771977-06-291977-07-17
19821982-07-191982-07-20

Every Fixed Threshold

Fixed thresholds at Truro
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days13619752
90 F (32.2 C): Days2119651
0 C (32 F): Ice days (max2376197855
0 C (32 F): Frost days (min232191965154
-10 C (14 F): Days with min2378197842
-20 C (-4 F): Days with min232319755
-30 C (-22 F): Days with min5219611
20 C (68 F): Tropical nights (min4219792
10 mm (0.39 in): Days with 10 mm or more rain2349197747
25 mm (0.98 in): Days with 25 mm or more rain2314198110
50 mm (1.97 in): Days with 50 mm or more rain16419792
100 mm (3.94 in): Days with 100 mm or more rain1119711
10 cm (3.9 in): Days with 10 cm or more snowfall231319636
25 cm (9.8 in): Days with 25 cm or more snowfall10219821

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Truro 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).