Wiarton A Threshold Days by Year (CA006119500)

16 fixed thresholds counted per year at Wiarton A (CA006119500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wiarton A Thresholds

Wiarton A: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1960 with 97.
Wiarton A: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1976 with 183.
Wiarton A: nights with a minimum temperature at or below -10 C (14 F) in 35 years, most in 1963 with 80.
Wiarton A: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1967 with 38.
16 fixed thresholds have at least one qualifying day at Wiarton A.

Days at or above 30 C (86 F)

30 years with a qualifying day

Days per year at Wiarton A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1955.

Days at or above 30 C (86 F) per year at Wiarton A
Year	Days	Decade average
1948	12	11
1949	10	11
1950	1	6.1
1952	8	6.1
1953	8	6.1
1954	3	6.1
1955	15	6.1
1957	2	6.1
1958	2	6.1
1959	10	6.1
1960	2	4.7
1961	2	4.7
1962	6	4.7
1963	4	4.7
1964	11	4.7
1965	3	4.7
1966	9	4.7
1967	1	4.7
1968	8	4.7
1969	1	4.7
1971	4	3.4
1972	1	3.4
1973	4	3.4
1974	3	3.4
1975	4	3.4
1976	2	3.4
1977	7	3.4
1978	2	3.4
1982	2	3.5
1983	5	3.5

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

First to last qualifying date each year at Wiarton A
Year	First date	Last date
1948	1948-07-04	1948-09-05
1949	1949-06-03	1949-08-27
1950	1950-06-23	1950-06-23
1952	1952-06-25	1952-09-14
1953	1953-06-19	1953-09-04
1954	1954-06-09	1954-08-23
1955	1955-07-01	1955-09-18
1957	1957-06-18	1957-06-22
1958	1958-08-05	1958-08-12
1959	1959-06-11	1959-09-09
1960	1960-09-07	1960-09-08
1961	1961-07-23	1961-09-01
1962	1962-07-08	1962-09-13
1963	1963-06-30	1963-07-28
1964	1964-06-09	1964-07-28
1965	1965-06-27	1965-08-14
1966	1966-06-06	1966-07-24
1967	1967-06-04	1967-06-04
1968	1968-06-11	1968-08-24
1969	1969-06-26	1969-06-26
1971	1971-05-19	1971-08-10
1972	1972-07-12	1972-07-12
1973	1973-07-24	1973-09-04
1974	1974-07-14	1974-08-21
1975	1975-06-22	1975-08-01
1976	1976-06-15	1976-08-27
1977	1977-05-21	1977-08-28
1978	1978-07-07	1978-08-18
1982	1982-07-06	1982-07-10
1983	1983-07-03	1983-09-10

Every Fixed Threshold

Fixed thresholds at Wiarton A
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	30	15	1955	5
35 C (95 F): Days	1	1	1953	1
90 F (32.2 C): Days	12	5	1948	1
0 C (32 F): Ice days (max	35	97	1960	60
0 C (32 F): Frost days (min	35	183	1976	155
-10 C (14 F): Days with min	35	80	1963	42
-20 C (-4 F): Days with min	34	20	1948	5
-30 C (-22 F): Days with min	7	2	1962	2
20 C (68 F): Tropical nights (min	22	13	1959	3
10 mm (0.39 in): Days with 10 mm or more rain	35	38	1967	38
25 mm (0.98 in): Days with 25 mm or more rain	35	9	1970	6
50 mm (1.97 in): Days with 50 mm or more rain	14	2	1967	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1969	1
10 cm (3.9 in): Days with 10 cm or more snowfall	35	21	1977	13
25 cm (9.8 in): Days with 25 cm or more snowfall	11	2	1955	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Wiarton A 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).

Wiarton A Threshold Days by Year (CA006119500)

Key Facts for Wiarton A Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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