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Built 2026-10-19 (19 October 2026)

Thetford Mines Threshold Days by Year (CA007028441)

14 fixed thresholds counted per year at Thetford Mines (CA007028441): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Thetford Mines Thresholds

  • Thetford Mines: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1973 with 54.
  • Thetford Mines: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1976 with 12.
  • Thetford Mines: days with 10 cm (3.9 in) or more of snowfall in 18 years, most in 1972 with 18.
  • Thetford Mines: days with a maximum temperature at or below 0 C (32 F) in 17 years, most in 1976 with 119.
  • 14 fixed thresholds have at least one qualifying day at Thetford Mines.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Thetford Mines Days per year at Thetford Mines with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1983. 024681968: 41969: 11970: 31971: 11973: 11975: 31977: 21978: 31979: 21980: 11982: 41983: 7196819701973197719791982
Days per year at Thetford Mines with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1983.
Days at or above 30 C (86 F) per year at Thetford Mines
YearDaysDecade average
196842.5
196912.5
197032.1
197112.1
197312.1
197532.1
197722.1
197832.1
197922.1
198014
198244
198374
First to last qualifying date each year at Thetford Mines For each year, a bar from the first to the last day at Thetford Mines meeting 30 C (86 F). 1968: 15 July 1968 to 18 July 19681969: 27 June 1969 to 27 June 19691970: 25 July 1970 to 30 July 19701971: 30 June 1971 to 30 June 19711973: 8 July 1973 to 8 July 19731975: 23 June 1975 to 2 August 19751977: 22 May 1977 to 20 July 19771978: 29 May 1978 to 15 August 19781979: 24 July 1979 to 25 July 19791980: 25 June 1980 to 25 June 19801982: 10 June 1982 to 18 July 19821983: 13 June 1983 to 4 July 1983196819701973197719791982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Thetford Mines meeting 30 C (86 F).
First to last qualifying date each year at Thetford Mines
YearFirst dateLast date
19681968-07-151968-07-18
19691969-06-271969-06-27
19701970-07-251970-07-30
19711971-06-301971-06-30
19731973-07-081973-07-08
19751975-06-231975-08-02
19771977-05-221977-07-20
19781978-05-291978-08-15
19791979-07-241979-07-25
19801980-06-251980-06-25
19821982-06-101982-07-18
19831983-06-131983-07-04

Every Fixed Threshold

Fixed thresholds at Thetford Mines
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days12719837
90 F (32.2 C): Days2219751
0 C (32 F): Ice days (max171191976103
0 C (32 F): Frost days (min172041972189
-10 C (14 F): Days with min17106197875
-20 C (-4 F): Days with min1751197626
-30 C (-22 F): Days with min14619761
20 C (68 F): Tropical nights (min9519772
25 C (77 F): Days with min1119691
10 mm (0.39 in): Days with 10 mm or more rain1854197351
25 mm (0.98 in): Days with 25 mm or more rain181219769
50 mm (1.97 in): Days with 50 mm or more rain12319731
10 cm (3.9 in): Days with 10 cm or more snowfall1818197214
25 cm (9.8 in): Days with 25 cm or more snowfall7419834

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Thetford Mines 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).