Built 2026-10-19 (19 October 2026)

Magog Threshold Days by Year (CA007024440)

14 fixed thresholds counted per year at Magog (CA007024440): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Magog Thresholds

  • Magog: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1974 with 50.
  • Magog: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1981 with 11.
  • Magog: days with 10 cm (3.9 in) or more of snowfall in 34 years, most in 1972 with 14.
  • Magog: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1971 with 106.
  • 14 fixed thresholds have at least one qualifying day at Magog.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Magog Days per year at Magog with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 1955. 051015201950: 41952: 81953: 81954: 11955: 171956: 21957: 41958: 11959: 111960: 61964: 51965: 41966: 51967: 11968: 61969: 31970: 161971: 21973: 41975: 91977: 61978: 91979: 71981: 41982: 31983: 10195019541957196019661969197319781982
Days per year at Magog with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 1955.
Days at or above 30 C (86 F) per year at Magog
YearDaysDecade average
195046.2
195286.2
195386.2
195416.2
1955176.2
195626.2
195746.2
195816.2
1959116.2
196064.3
196454.3
196544.3
196654.3
196714.3
196864.3
196934.3
1970167.6
197127.6
197347.6
197597.6
197767.6
197897.6
197977.6
198145.7
198235.7
1983105.7
First to last qualifying date each year at Magog For each year, a bar from the first to the last day at Magog meeting 30 C (86 F). 1950: 26 May 1950 to 17 July 19501952: 6 July 1952 to 28 August 19521953: 21 June 1953 to 5 September 19531954: 22 June 1954 to 22 June 19541955: 17 June 1955 to 22 August 19551956: 14 June 1956 to 7 August 19561957: 17 June 1957 to 23 June 19571958: 31 August 1958 to 31 August 19581959: 29 June 1959 to 15 August 19591960: 27 May 1960 to 9 September 19601964: 19 June 1964 to 28 July 19641965: 28 June 1965 to 22 September 19651966: 3 July 1966 to 9 August 19661967: 4 June 1967 to 4 June 19671968: 14 July 1968 to 19 July 19681969: 12 June 1969 to 16 July 19691970: 9 July 1970 to 16 August 19701971: 20 June 1971 to 30 June 19711973: 8 July 1973 to 5 September 19731975: 20 May 1975 to 3 August 19751977: 22 May 1977 to 29 August 19771978: 25 May 1978 to 16 August 19781979: 9 May 1979 to 31 July 19791981: 16 June 1981 to 9 July 19811982: 7 July 1982 to 18 July 19821983: 13 June 1983 to 4 July 19831950195519591966197019771982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Magog meeting 30 C (86 F).
First to last qualifying date each year at Magog
YearFirst dateLast date
19501950-05-261950-07-17
19521952-07-061952-08-28
19531953-06-211953-09-05
19541954-06-221954-06-22
19551955-06-171955-08-22
19561956-06-141956-08-07
19571957-06-171957-06-23
19581958-08-311958-08-31
19591959-06-291959-08-15
19601960-05-271960-09-09
19641964-06-191964-07-28
19651965-06-281965-09-22
19661966-07-031966-08-09
19671967-06-041967-06-04
19681968-07-141968-07-19
19691969-06-121969-07-16
19701970-07-091970-08-16
19711971-06-201971-06-30
19731973-07-081973-09-05
19751975-05-201975-08-03
19771977-05-221977-08-29
19781978-05-251978-08-16
19791979-05-091979-07-31
19811981-06-161981-07-09
19821982-07-071982-07-18
19831983-06-131983-07-04

Every Fixed Threshold

Fixed thresholds at Magog
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2617195510
90 F (32.2 C): Days9319521
0 C (32 F): Ice days (max31106197182
0 C (32 F): Frost days (min311841965166
-10 C (14 F): Days with min3193197067
-20 C (-4 F): Days with min3137196815
-30 C (-22 F): Days with min24419572
20 C (68 F): Tropical nights (min271519553
10 mm (0.39 in): Days with 10 mm or more rain3450197449
25 mm (0.98 in): Days with 25 mm or more rain341119817
50 mm (1.97 in): Days with 50 mm or more rain10119501
10 cm (3.9 in): Days with 10 cm or more snowfall341419729
25 cm (9.8 in): Days with 25 cm or more snowfall19619711
50 cm (19.7 in): Days with 50 cm or more snowfall2119691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Magog 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).