Built 2026-10-19 (19 October 2026)

Petawawa Nat Forestry Threshold Days by Year (CA006106400)

15 fixed thresholds counted per year at Petawawa Nat Forestry (CA006106400): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Petawawa Nat Forestry Thresholds

  • Petawawa Nat Forestry: days with a maximum temperature at or above 30 C (86 F) in 30 years, most in 1953 with 26.
  • Petawawa Nat Forestry: days with a maximum temperature at or below 0 C (32 F) in 30 years, most in 1976 with 111.
  • Petawawa Nat Forestry: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1980 with 200.
  • Petawawa Nat Forestry: nights with a minimum temperature at or below -10 C (14 F) in 30 years, most in 1978 with 106.
  • 15 fixed thresholds have at least one qualifying day at Petawawa Nat Forestry.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Petawawa Nat Forestry Days per year at Petawawa Nat Forestry with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1953. 01020301952: 201953: 261954: 11956: 41957: 111959: 211960: 41961: 61962: 151963: 211964: 171965: 51966: 131967: 31968: 61969: 101970: 101971: 91972: 21973: 71974: 71975: 211976: 101977: 111978: 121979: 71980: 21981: 41982: 61983: 161952195619601963196619691972197519781981
Days per year at Petawawa Nat Forestry with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1953.
Days at or above 30 C (86 F) per year at Petawawa Nat Forestry
YearDaysDecade average
19522013.8
19532613.8
1954113.8
1956413.8
19571113.8
19592113.8
1960410
1961610
19621510
19632110
19641710
1965510
19661310
1967310
1968610
19691010
1970109.6
197199.6
197229.6
197379.6
197479.6
1975219.6
1976109.6
1977119.6
1978129.6
197979.6
198027
198147
198267
1983167
First to last qualifying date each year at Petawawa Nat Forestry For each year, a bar from the first to the last day at Petawawa Nat Forestry meeting 30 C (86 F). 1952: 14 June 1952 to 13 September 19521953: 9 May 1953 to 4 September 19531954: 3 July 1954 to 3 July 19541956: 12 June 1956 to 7 August 19561957: 15 June 1957 to 9 August 19571959: 26 May 1959 to 26 August 19591960: 19 August 1960 to 8 September 19601961: 15 May 1961 to 11 September 19611962: 16 May 1962 to 13 September 19621963: 2 June 1963 to 28 July 19631964: 22 May 1964 to 7 August 19641965: 26 May 1965 to 14 August 19651966: 24 May 1966 to 25 July 19661967: 3 June 1967 to 22 July 19671968: 8 July 1968 to 18 July 19681969: 28 May 1969 to 31 August 19691970: 9 June 1970 to 15 August 19701971: 19 May 1971 to 19 August 19711972: 23 May 1972 to 12 July 19721973: 7 July 1973 to 3 September 19731974: 22 May 1974 to 21 August 19741975: 20 May 1975 to 25 August 19751976: 18 April 1976 to 21 August 19761977: 17 May 1977 to 28 August 19771978: 25 May 1978 to 15 August 19781979: 8 May 1979 to 23 July 19791980: 24 June 1980 to 25 June 19801981: 15 June 1981 to 8 July 19811982: 6 July 1982 to 13 September 19821983: 12 June 1983 to 5 September 198319521957196219661970197419781982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Petawawa Nat Forestry meeting 30 C (86 F).
First to last qualifying date each year at Petawawa Nat Forestry
YearFirst dateLast date
19521952-06-141952-09-13
19531953-05-091953-09-04
19541954-07-031954-07-03
19561956-06-121956-08-07
19571957-06-151957-08-09
19591959-05-261959-08-26
19601960-08-191960-09-08
19611961-05-151961-09-11
19621962-05-161962-09-13
19631963-06-021963-07-28
19641964-05-221964-08-07
19651965-05-261965-08-14
19661966-05-241966-07-25
19671967-06-031967-07-22
19681968-07-081968-07-18
19691969-05-281969-08-31
19701970-06-091970-08-15
19711971-05-191971-08-19
19721972-05-231972-07-12
19731973-07-071973-09-03
19741974-05-221974-08-21
19751975-05-201975-08-25
19761976-04-181976-08-21
19771977-05-171977-08-28
19781978-05-251978-08-15
19791979-05-081979-07-23
19801980-06-241980-06-25
19811981-06-151981-07-08
19821982-07-061982-09-13
19831983-06-121983-09-05

Every Fixed Threshold

Fixed thresholds at Petawawa Nat Forestry
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3026195316
35 C (95 F): Days4419531
90 F (32.2 C): Days241219631
0 C (32 F): Ice days (max30111197688
0 C (32 F): Frost days (min302001980189
-10 C (14 F): Days with min30106197880
-20 C (-4 F): Days with min3050196328
-30 C (-22 F): Days with min291219793
-40 C (-40 F): Days with min2119571
20 C (68 F): Tropical nights (min19519593
10 mm (0.39 in): Days with 10 mm or more rain2837197236
25 mm (0.98 in): Days with 25 mm or more rain26719674
50 mm (1.97 in): Days with 50 mm or more rain8119541
10 cm (3.9 in): Days with 10 cm or more snowfall281019718
25 cm (9.8 in): Days with 25 cm or more snowfall10219671

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Petawawa Nat Forestry 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).