Porcupine Ont Hydro Threshold Days by Year (CA006076572)

15 fixed thresholds counted per year at Porcupine Ont Hydro (CA006076572): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Porcupine Ont Hydro Thresholds

Porcupine Ont Hydro: nights with a minimum temperature at or below 0 C (32 F) in 13 years, most in 1980 with 222.
Porcupine Ont Hydro: nights with a minimum temperature at or below -10 C (14 F) in 13 years, most in 1970 with 131.
Porcupine Ont Hydro: nights with a minimum temperature at or below -20 C (-4 F) in 13 years, most in 1976 with 81.
Porcupine Ont Hydro: nights with a minimum temperature at or below -30 C (-22 F) in 13 years, most in 1972 with 30.
15 fixed thresholds have at least one qualifying day at Porcupine Ont Hydro.

Days at or above 30 C (86 F)

12 years with a qualifying day

Days per year at Porcupine Ont Hydro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1976.

Days at or above 30 C (86 F) per year at Porcupine Ont Hydro
Year	Days	Decade average
1970	17	12.6
1971	6	12.6
1972	13	12.6
1974	4	12.6
1976	22	12.6
1977	10	12.6
1978	13	12.6
1979	16	12.6
1980	12	14.5
1981	18	14.5
1982	7	14.5
1983	21	14.5

For each year, a bar from the first to the last day at Porcupine Ont Hydro meeting 30 C (86 F).

First to last qualifying date each year at Porcupine Ont Hydro
Year	First date	Last date
1970	1970-06-09	1970-08-15
1971	1971-06-17	1971-08-10
1972	1972-05-17	1972-08-20
1974	1974-07-08	1974-08-21
1976	1976-06-04	1976-09-08
1977	1977-05-16	1977-07-20
1978	1978-05-18	1978-08-15
1979	1979-06-07	1979-07-29
1980	1980-05-21	1980-08-23
1981	1981-05-22	1981-08-21
1982	1982-05-27	1982-09-12
1983	1983-06-12	1983-09-03

Every Fixed Threshold

Fixed thresholds at Porcupine Ont Hydro
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	12	22	1976	21
35 C (95 F): Days	4	2	1981	1
90 F (32.2 C): Days	11	10	1976	9
0 C (32 F): Ice days (max	12	136	1976	118
0 C (32 F): Frost days (min	13	222	1980	212
-10 C (14 F): Days with min	13	131	1970	111
-20 C (-4 F): Days with min	13	81	1976	55
-30 C (-22 F): Days with min	13	30	1972	20
-40 C (-40 F): Days with min	9	5	1982	5
20 C (68 F): Tropical nights (min	9	5	1983	5
10 mm (0.39 in): Days with 10 mm or more rain	13	34	1979	30
25 mm (0.98 in): Days with 25 mm or more rain	13	5	1981	4
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1982	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	14	1976	11
25 cm (9.8 in): Days with 25 cm or more snowfall	5	2	1976	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

Data for Porcupine Ont Hydro 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Porcupine Ont Hydro Threshold Days by Year (CA006076572)

Key Facts for Porcupine Ont Hydro Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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