South Slocan Threshold Days by Year (CA001147620)

16 fixed thresholds counted per year at South Slocan (CA001147620): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for South Slocan Thresholds

South Slocan: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1982 with 35.
South Slocan: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1958 with 65.
South Slocan: days with a maximum temperature at or above 90 F (32.2 C) in 42 years, most in 1945 with 44.
South Slocan: days with a maximum temperature at or below 0 C (32 F) in 42 years, most in 1949 with 64.
16 fixed thresholds have at least one qualifying day at South Slocan.

Days at or above 30 C (86 F)

42 years with a qualifying day

Days per year at South Slocan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 65 in 1958.

Days at or above 30 C (86 F) per year at South Slocan
Year	Days	Decade average
1941	47	44.2
1942	44	44.2
1943	39	44.2
1944	54	44.2
1945	60	44.2
1946	43	44.2
1947	34	44.2
1948	24	44.2
1949	53	44.2
1950	55	36.7
1951	44	36.7
1952	39	36.7
1954	21	36.7
1955	26	36.7
1956	35	36.7
1957	20	36.7
1958	65	36.7
1959	25	36.7
1960	31	32.4
1961	46	32.4
1962	20	32.4
1963	32	32.4
1964	10	32.4
1965	36	32.4
1966	26	32.4
1967	61	32.4
1968	23	32.4
1969	39	32.4
1970	50	36.4
1971	42	36.4
1972	26	36.4
1973	51	36.4
1974	34	36.4
1975	22	36.4
1976	13	36.4
1977	46	36.4
1978	33	36.4
1979	47	36.4
1980	20	26.5
1981	33	26.5
1982	28	26.5
1983	25	26.5

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

First to last qualifying date each year at South Slocan
Year	First date	Last date
1941	1941-05-23	1941-08-21
1942	1942-06-28	1942-09-05
1943	1943-06-27	1943-09-13
1944	1944-05-14	1944-09-12
1945	1945-05-28	1945-09-02
1946	1946-05-04	1946-09-02
1947	1947-05-07	1947-09-04
1948	1948-05-27	1948-09-13
1949	1949-05-08	1949-09-08
1950	1950-06-03	1950-09-23
1951	1951-05-22	1951-08-22
1952	1952-06-09	1952-09-26
1954	1954-05-17	1954-08-14
1955	1955-06-09	1955-09-05
1956	1956-05-17	1956-09-18
1957	1957-07-05	1957-09-17
1958	1958-05-21	1958-09-09
1959	1959-06-12	1959-08-09
1960	1960-06-24	1960-08-18
1961	1961-06-01	1961-08-30
1962	1962-06-16	1962-09-06
1963	1963-06-14	1963-09-09
1964	1964-07-07	1964-08-17
1965	1965-06-05	1965-08-21
1966	1966-05-26	1966-09-09
1967	1967-06-15	1967-09-24
1968	1968-06-18	1968-08-10
1969	1969-06-03	1969-09-12
1970	1970-06-02	1970-08-31
1971	1971-07-14	1971-08-29
1972	1972-07-04	1972-09-04
1973	1973-05-14	1973-09-11
1974	1974-06-13	1974-08-30
1975	1975-07-03	1975-09-07
1976	1976-06-29	1976-08-11
1977	1977-04-23	1977-08-22
1978	1978-06-02	1978-08-10
1979	1979-06-02	1979-08-29
1980	1980-05-05	1980-08-15
1981	1981-06-26	1981-09-17
1982	1982-06-11	1982-08-27
1983	1983-05-24	1983-08-22

Every Fixed Threshold

Fixed thresholds at South Slocan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	42	65	1958	25
35 C (95 F): Days	34	19	1945	3
40 C (104 F): Days	2	1	1941	1
90 F (32.2 C): Days	42	44	1945	10
100 F (37.8 C): Days	20	7	1945	1
0 C (32 F): Ice days (max	42	64	1949	38
0 C (32 F): Frost days (min	42	176	1970	128
-10 C (14 F): Days with min	42	54	1949	20
-20 C (-4 F): Days with min	29	20	1950	4
-30 C (-22 F): Days with min	3	7	1950	1
20 C (68 F): Tropical nights (min	1	1	1941	1
10 mm (0.39 in): Days with 10 mm or more rain	43	35	1982	29
25 mm (0.98 in): Days with 25 mm or more rain	35	4	1971	2
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	13	1971	3
25 cm (9.8 in): Days with 25 cm or more snowfall	11	3	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

Data for South Slocan 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).

South Slocan Threshold Days by Year (CA001147620)

Key Facts for South Slocan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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