Northdale Threshold Days by Year (USC00055970)

16 fixed thresholds counted per year at Northdale (USC00055970): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Northdale Thresholds

Northdale: days with a maximum temperature at or below 0 C (32 F) in 82 years, most in 1936 with 55.
Northdale: nights with a minimum temperature at or below 0 C (32 F) in 82 years, most in 1968 with 233.
Northdale: nights with a minimum temperature at or below -10 C (14 F) in 82 years, most in 1988 with 91.
Northdale: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 2020 with 75.
16 fixed thresholds have at least one qualifying day at Northdale.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Northdale with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2020.

Days at or above 30 C (86 F) per year at Northdale
Year	Days	Decade average
1931	45	43.3
1932	36	43.3
1933	46	43.3
1934	34	43.3
1936	49	43.3
1937	49	43.3
1938	39	43.3
1939	48	43.3
1940	56	39.3
1941	23	39.3
1942	40	39.3
1943	37	39.3
1944	24	39.3
1945	43	39.3
1946	54	39.3
1947	37	39.3
1948	43	39.3
1949	36	39.3
1950	38	45.1
1951	49	45.1
1952	40	45.1
1953	47	45.1
1954	45	45.1
1955	47	45.1
1956	44	45.1
1957	24	45.1
1958	54	45.1
1959	63	45.1
1960	62	42.6
1961	51	42.6
1962	50	42.6
1963	40	42.6
1964	41	42.6
1965	24	42.6
1966	48	42.6
1967	36	42.6
1968	32	42.6
1969	42	42.6
1970	51	39.3
1971	46	39.3
1972	36	39.3
1973	27	39.3
1974	41	39.3
1975	22	39.3
1976	35	39.3
1977	42	39.3
1978	47	39.3
1979	46	39.3
1981	54	47.4
1982	39	47.4
1983	40	47.4
1984	53	47.4
1985	51	47.4
1986	46	47.4
1987	44	47.4
1988	69	47.4
1989	31	47.4
1990	39	30.6
1991	23	30.6
1992	25	30.6
1993	24	30.6
1995	37	30.6
1996	55	30.6
1997	14	30.6
1998	39	30.6
1999	19	30.6
2000	60	60.3
2001	48	60.3
2002	73	60.3
2015	26	56.2
2016	46	56.2
2017	73	56.2
2018	73	56.2
2019	63	56.2
2020	75	60.4
2021	65	60.4
2022	59	60.4
2023	55	60.4
2024	64	60.4
2025	39	60.4
2026	66	60.4

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

First to last qualifying date each year at Northdale
Year	First date	Last date
1931	1931-06-16	1931-09-08
1932	1932-06-21	1932-08-24
1933	1933-06-10	1933-09-07
1934	1934-06-18	1934-08-19
1936	1936-06-12	1936-08-28
1937	1937-06-14	1937-09-18
1938	1938-06-02	1938-08-27
1939	1939-06-04	1939-09-02
1940	1940-06-12	1940-09-01
1941	1941-06-22	1941-08-13
1942	1942-06-17	1942-09-02
1943	1943-06-23	1943-08-27
1944	1944-06-20	1944-09-08
1945	1945-06-21	1945-09-06
1946	1946-06-04	1946-09-04
1947	1947-05-04	1947-09-06
1948	1948-06-10	1948-09-14
1949	1949-06-15	1949-09-07
1950	1950-06-16	1950-09-03
1951	1951-05-27	1951-08-23
1952	1952-06-09	1952-09-06
1953	1953-06-10	1953-09-15
1954	1954-06-18	1954-09-02
1955	1955-06-08	1955-09-10
1956	1956-05-31	1956-09-19
1957	1957-06-05	1957-08-18
1958	1958-05-27	1958-09-10
1959	1959-06-05	1959-09-14
1960	1960-05-13	1960-09-05
1961	1961-06-09	1961-08-28
1962	1962-06-19	1962-09-18
1963	1963-06-20	1963-09-27
1964	1964-06-15	1964-08-24
1965	1965-07-02	1965-08-27
1966	1966-06-15	1966-08-28
1967	1967-06-23	1967-09-04
1968	1968-06-03	1968-09-10
1969	1969-05-30	1969-09-07
1970	1970-06-20	1970-08-30
1971	1971-06-14	1971-09-12
1972	1972-06-28	1972-08-13
1973	1973-06-25	1973-08-19
1974	1974-06-12	1974-09-11
1975	1975-06-30	1975-08-10
1976	1976-06-20	1976-09-05
1977	1977-05-31	1977-09-08
1978	1978-06-09	1978-09-07
1979	1979-06-24	1979-09-12
1981	1981-06-07	1981-08-26
1982	1982-06-24	1982-09-04
1983	1983-06-18	1983-09-12
1984	1984-05-13	1984-09-09
1985	1985-06-07	1985-09-01
1986	1986-06-13	1986-09-07
1987	1987-06-12	1987-10-06
1988	1988-06-04	1988-09-10
1989	1989-06-15	1989-08-07
1990	1990-06-04	1990-09-16
1991	1991-07-02	1991-08-30
1992	1992-06-22	1992-08-20
1993	1993-06-14	1993-08-06
1995	1995-07-06	1995-09-05
1996	1996-05-12	1996-09-04
1997	1997-06-19	1997-08-21
1998	1998-06-27	1998-08-31
1999	1999-06-24	1999-07-26
2000	2000-05-23	2000-09-17
2001	2001-05-25	2001-09-04
2002	2002-05-29	2002-09-05
2015	2015-06-19	2015-08-22
2016	2016-06-05	2016-08-16
2017	2017-06-05	2017-09-13
2018	2018-06-03	2018-09-19
2019	2019-06-28	2019-09-08
2020	2020-05-29	2020-09-08
2021	2021-06-04	2021-09-11
2022	2022-06-08	2022-09-10
2023	2023-06-27	2023-09-10
2024	2024-06-06	2024-09-28
2025	2025-06-13	2025-08-23
2026	2026-05-13	2026-08-29

Every Fixed Threshold

Fixed thresholds at Northdale
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	75	2020	66
35 C (95 F): Days	51	12	1936	12
90 F (32.2 C): Days	81	43	2020	41
100 F (37.8 C): Days	1	6	1936	6
0 C (32 F): Ice days (max	82	55	1936	6
0 C (32 F): Frost days (min	82	233	1968	121
-10 C (14 F): Days with min	82	91	1988	19
-20 C (-4 F): Days with min	79	32	1949	1
-30 C (-22 F): Days with min	33	8	1937	1
-40 C (-40 F): Days with min	1	1	1933	1
20 C (68 F): Tropical nights (min	2	1	1977	1
10 mm (0.39 in): Days with 10 mm or more rain	75	20	1965	4
25 mm (0.98 in): Days with 25 mm or more rain	41	4	1940	1
50 mm (1.97 in): Days with 50 mm or more rain	6	1	1933	1
10 cm (3.9 in): Days with 10 cm or more snowfall	56	11	1937	1
25 cm (9.8 in): Days with 25 cm or more snowfall	13	3	1993	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Northdale 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).

Northdale Threshold Days by Year (USC00055970)

Key Facts for Northdale Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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