Port Dalhousie Threshold Days by Year (CA006136626)

14 fixed thresholds counted per year at Port Dalhousie (CA006136626): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Dalhousie Thresholds

Port Dalhousie: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1977 with 40.
Port Dalhousie: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1917 with 8.
Port Dalhousie: days with 10 cm (3.9 in) or more of snowfall in 33 years, most in 1974 with 6.
Port Dalhousie: days with a maximum temperature at or above 30 C (86 F) in 25 years, most in 1959 with 37.
14 fixed thresholds have at least one qualifying day at Port Dalhousie.

Days at or above 30 C (86 F)

25 years with a qualifying day

Days per year at Port Dalhousie with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 37 in 1959.

Days at or above 30 C (86 F) per year at Port Dalhousie
Year	Days	Decade average
1958	6	21.5
1959	37	21.5
1960	13	16.7
1961	12	16.7
1962	16	16.7
1963	17	16.7
1964	19	16.7
1966	26	16.7
1967	9	16.7
1968	18	16.7
1969	20	16.7
1970	18	17.8
1971	15	17.8
1972	13	17.8
1973	24	17.8
1974	18	17.8
1975	23	17.8
1976	10	17.8
1977	16	17.8
1978	25	17.8
1979	16	17.8
1980	12	15.3
1981	9	15.3
1982	9	15.3
1983	31	15.3

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

First to last qualifying date each year at Port Dalhousie
Year	First date	Last date
1958	1958-07-02	1958-08-14
1959	1959-06-08	1959-09-28
1960	1960-06-27	1960-09-08
1961	1961-06-12	1961-09-13
1962	1962-05-15	1962-08-31
1963	1963-06-06	1963-07-28
1964	1964-06-19	1964-09-10
1966	1966-06-06	1966-09-02
1967	1967-06-11	1967-08-17
1968	1968-06-07	1968-08-24
1969	1969-05-29	1969-09-05
1970	1970-05-01	1970-09-24
1971	1971-05-19	1971-09-08
1972	1972-07-11	1972-09-17
1973	1973-06-11	1973-09-05
1974	1974-06-05	1974-08-23
1975	1975-05-21	1975-08-02
1976	1976-06-08	1976-08-28
1977	1977-05-17	1977-09-01
1978	1978-05-30	1978-09-11
1979	1979-05-08	1979-09-01
1980	1980-06-25	1980-08-27
1981	1981-06-15	1981-07-19
1982	1982-07-06	1982-09-14
1983	1983-06-12	1983-09-10

Every Fixed Threshold

Fixed thresholds at Port Dalhousie
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	25	37	1959	31
35 C (95 F): Days	5	3	1973	1
90 F (32.2 C): Days	22	13	1959	7
0 C (32 F): Ice days (max	25	72	1978	45
0 C (32 F): Frost days (min	25	144	1972	110
-10 C (14 F): Days with min	25	46	1978	20
-20 C (-4 F): Days with min	11	3	1970	2
20 C (68 F): Tropical nights (min	25	32	1959	30
25 C (77 F): Days with min	2	1	1959	1
10 mm (0.39 in): Days with 10 mm or more rain	38	40	1977	35
25 mm (0.98 in): Days with 25 mm or more rain	38	8	1917	4
50 mm (1.97 in): Days with 50 mm or more rain	11	2	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	33	6	1974	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1875	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

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Data for Port Dalhousie 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).

Port Dalhousie Threshold Days by Year (CA006136626)

Key Facts for Port Dalhousie Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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