Lethbridge Cda Threshold Days by Year (CA003033890)

16 fixed thresholds counted per year at Lethbridge Cda (CA003033890): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lethbridge Cda Thresholds

Lethbridge Cda: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 1925 with 19.
Lethbridge Cda: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 1936 with 36.
Lethbridge Cda: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 1951 with 95.
Lethbridge Cda: nights with a minimum temperature at or below 0 C (32 F) in 75 years, most in 1909 with 218.
16 fixed thresholds have at least one qualifying day at Lethbridge Cda.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Lethbridge Cda with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1936.

Days at or above 30 C (86 F) per year at Lethbridge Cda
Year	Days	Decade average
1909	20	20
1910	29	15.2
1911	7	15.2
1912	14	15.2
1913	16	15.2
1914	21	15.2
1915	10	15.2
1916	2	15.2
1917	14	15.2
1918	18	15.2
1919	21	15.2
1920	20	14
1921	11	14
1922	17	14
1923	12	14
1924	14	14
1925	14	14
1926	16	14
1927	1	14
1928	12	14
1929	23	14
1930	18	18
1931	22	18
1932	15	18
1933	19	18
1934	14	18
1935	12	18
1936	36	18
1937	9	18
1938	16	18
1939	19	18
1940	17	14.6
1941	10	14.6
1942	12	14.6
1943	14	14.6
1944	10	14.6
1945	20	14.6
1946	17	14.6
1947	17	14.6
1948	12	14.6
1949	17	14.6
1950	9	10.2
1951	4	10.2
1952	7	10.2
1953	12	10.2
1954	6	10.2
1955	14	10.2
1956	13	10.2
1957	9	10.2
1958	15	10.2
1959	13	10.2
1960	20	15.3
1961	29	15.3
1962	4	15.3
1963	14	15.3
1964	7	15.3
1965	11	15.3
1966	9	15.3
1967	28	15.3
1968	11	15.3
1969	20	15.3
1970	31	16.3
1971	29	16.3
1972	14	16.3
1973	23	16.3
1974	17	16.3
1975	11	16.3
1976	6	16.3
1977	7	16.3
1978	11	16.3
1979	14	16.3
1980	8	13.3
1981	18	13.3
1982	12	13.3
1983	15	13.3

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

First to last qualifying date each year at Lethbridge Cda
Year	First date	Last date
1909	1909-07-01	1909-09-28
1910	1910-04-24	1910-08-20
1911	1911-05-05	1911-08-19
1912	1912-06-08	1912-08-25
1913	1913-06-02	1913-09-09
1914	1914-06-02	1914-09-04
1915	1915-07-23	1915-08-30
1916	1916-07-16	1916-07-31
1917	1917-07-15	1917-08-17
1918	1918-06-09	1918-08-26
1919	1919-05-20	1919-09-05
1920	1920-07-01	1920-08-25
1921	1921-06-25	1921-08-31
1922	1922-06-04	1922-09-26
1923	1923-06-13	1923-09-16
1924	1924-05-15	1924-09-05
1925	1925-06-21	1925-08-27
1926	1926-06-27	1926-08-29
1927	1927-07-26	1927-07-26
1928	1928-05-22	1928-09-04
1929	1929-07-03	1929-09-01
1930	1930-06-17	1930-08-25
1931	1931-05-14	1931-08-30
1932	1932-06-23	1932-09-07
1933	1933-06-12	1933-10-07
1934	1934-05-25	1934-10-10
1935	1935-06-22	1935-08-22
1936	1936-05-14	1936-08-29
1937	1937-06-28	1937-09-12
1938	1938-06-20	1938-09-21
1939	1939-04-28	1939-08-25
1940	1940-07-03	1940-09-04
1941	1941-05-23	1941-08-22
1942	1942-07-02	1942-09-05
1943	1943-07-06	1943-09-12
1944	1944-05-15	1944-09-06
1945	1945-06-21	1945-08-24
1946	1946-04-25	1946-08-23
1947	1947-07-02	1947-08-08
1948	1948-06-07	1948-09-14
1949	1949-07-15	1949-08-22
1950	1950-07-09	1950-09-03
1951	1951-07-18	1951-08-04
1952	1952-07-04	1952-09-26
1953	1953-07-12	1953-09-12
1954	1954-07-04	1954-07-26
1955	1955-07-14	1955-09-06
1956	1956-06-04	1956-08-23
1957	1957-07-10	1957-09-27
1958	1958-05-28	1958-09-11
1959	1959-06-12	1959-09-12
1960	1960-07-06	1960-09-03
1961	1961-06-03	1961-08-23
1962	1962-06-25	1962-08-16
1963	1963-07-07	1963-09-29
1964	1964-06-26	1964-08-18
1965	1965-06-10	1965-08-12
1966	1966-05-26	1966-09-18
1967	1967-07-03	1967-09-29
1968	1968-06-19	1968-09-11
1969	1969-06-04	1969-09-12
1970	1970-06-02	1970-08-31
1971	1971-06-22	1971-08-27
1972	1972-05-30	1972-08-28
1973	1973-05-16	1973-09-06
1974	1974-06-12	1974-08-05
1975	1975-07-03	1975-09-15
1976	1976-07-16	1976-09-01
1977	1977-06-01	1977-07-28
1978	1978-06-28	1978-09-03
1979	1979-06-12	1979-09-15
1980	1980-05-21	1980-10-07
1981	1981-07-03	1981-09-18
1982	1982-06-21	1982-09-03
1983	1983-07-31	1983-09-01

Every Fixed Threshold

Fixed thresholds at Lethbridge Cda
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	36	1936	15
35 C (95 F): Days	30	7	1936	2
90 F (32.2 C): Days	71	15	1936	8
100 F (37.8 C): Days	2	1	1960	1
0 C (32 F): Ice days (max	75	95	1951	59
0 C (32 F): Frost days (min	75	218	1909	176
-10 C (14 F): Days with min	75	108	1955	57
-20 C (-4 F): Days with min	75	61	1916	24
-30 C (-22 F): Days with min	70	25	1950	6
-40 C (-40 F): Days with min	16	4	1943	2
20 C (68 F): Tropical nights (min	3	1	1960	1
10 mm (0.39 in): Days with 10 mm or more rain	76	19	1925	4
25 mm (0.98 in): Days with 25 mm or more rain	62	5	1911	1
50 mm (1.97 in): Days with 50 mm or more rain	17	2	1916	1
10 cm (3.9 in): Days with 10 cm or more snowfall	65	10	1933	1
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	1938	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

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Data for Lethbridge Cda 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).

Lethbridge Cda Threshold Days by Year (CA003033890)

Key Facts for Lethbridge Cda Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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