Petrolia Town Threshold Days by Year (CA006126499)

13 fixed thresholds counted per year at Petrolia Town (CA006126499): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Petrolia Town Thresholds

Petrolia Town: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1975 with 39.
Petrolia Town: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1967 with 9.
Petrolia Town: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1968 with 8.
Petrolia Town: days with a maximum temperature at or above 30 C (86 F) in 12 years, most in 1983 with 42.
13 fixed thresholds have at least one qualifying day at Petrolia Town.

Days at or above 30 C (86 F)

12 years with a qualifying day

Days per year at Petrolia Town with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1983.

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

First to last qualifying date each year at Petrolia Town
Year	First date	Last date
1972	1972-06-14	1972-09-01
1973	1973-06-10	1973-09-04
1974	1974-06-09	1974-08-26
1975	1975-05-19	1975-08-11
1976	1976-06-06	1976-09-08
1977	1977-05-17	1977-08-28
1978	1978-05-26	1978-09-20
1979	1979-05-11	1979-09-05
1980	1980-06-23	1980-08-29
1981	1981-06-15	1981-08-13
1982	1982-05-06	1982-09-13
1983	1983-06-11	1983-09-10

Every Fixed Threshold

Fixed thresholds at Petrolia Town
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	12	42	1983	42
35 C (95 F): Days	5	3	1977	2
90 F (32.2 C): Days	10	11	1973	9
0 C (32 F): Ice days (max	12	80	1978	51
0 C (32 F): Frost days (min	12	162	1976	141
-10 C (14 F): Days with min	12	64	1978	35
-20 C (-4 F): Days with min	11	11	1978	3
20 C (68 F): Tropical nights (min	12	17	1983	17
10 mm (0.39 in): Days with 10 mm or more rain	23	39	1975	30
25 mm (0.98 in): Days with 25 mm or more rain	23	9	1967	3
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1967	1
10 cm (3.9 in): Days with 10 cm or more snowfall	22	8	1968	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1968	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

Data for Petrolia Town 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).

Year	Days	Decade average
1972	11	19.5
1973	21	19.5
1974	18	19.5
1975	20	19.5
1976	17	19.5
1977	21	19.5
1978	31	19.5
1979	17	19.5
1980	14	21
1981	13	21
1982	15	21
1983	42	21

Petrolia Town Threshold Days by Year (CA006126499)

Key Facts for Petrolia Town Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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