Lambton Threshold Days by Year (CA007024000)

16 fixed thresholds counted per year at Lambton (CA007024000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lambton Thresholds

Lambton: days with 10 cm (3.9 in) or more of snowfall in 56 years, most in 1972 with 18.
Lambton: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1969 with 51.
Lambton: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1951 with 13.
Lambton: days with a maximum temperature at or below 0 C (32 F) in 47 years, most in 1926 with 134.
16 fixed thresholds have at least one qualifying day at Lambton.

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at Lambton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1918.

Days at or above 30 C (86 F) per year at Lambton
Year	Days	Decade average
1916	8	13
1917	11	13
1918	22	13
1919	11	13
1920	1	2.5
1924	3	2.5
1925	5	2.5
1926	1	2.5
1942	1	6.2
1943	3	6.2
1945	3	6.2
1946	4	6.2
1947	15	6.2
1949	11	6.2
1951	1	4.5
1952	7	4.5
1953	3	4.5
1954	1	4.5
1955	15	4.5
1956	1	4.5
1957	4	4.5
1959	4	4.5
1960	1	2.5
1961	1	2.5
1962	2	2.5
1963	8	2.5
1964	2	2.5
1965	2	2.5
1966	1	2.5
1967	1	2.5
1968	5	2.5
1969	2	2.5
1970	10	4.8
1975	5	4.8
1976	2	4.8
1977	4	4.8
1978	3	4.8
1979	5	4.8
1982	2	3
1983	4	3

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

First to last qualifying date each year at Lambton
Year	First date	Last date
1916	1916-06-14	1916-08-22
1917	1917-07-08	1917-08-14
1918	1918-04-29	1918-07-29
1919	1919-06-03	1919-07-22
1920	1920-08-10	1920-08-10
1924	1924-07-08	1924-08-31
1925	1925-06-14	1925-09-04
1926	1926-07-16	1926-07-16
1942	1942-06-13	1942-06-13
1943	1943-07-10	1943-07-13
1945	1945-08-02	1945-08-14
1946	1946-06-26	1946-06-30
1947	1947-06-23	1947-08-25
1949	1949-06-13	1949-08-08
1951	1951-06-20	1951-06-20
1952	1952-07-07	1952-08-28
1953	1953-07-17	1953-08-30
1954	1954-06-22	1954-06-22
1955	1955-06-16	1955-08-21
1956	1956-06-14	1956-06-14
1957	1957-06-15	1957-07-19
1959	1959-07-23	1959-07-30
1960	1960-08-19	1960-08-19
1961	1961-08-10	1961-08-10
1962	1962-05-18	1962-06-15
1963	1963-06-04	1963-07-29
1964	1964-07-18	1964-07-28
1965	1965-08-15	1965-09-22
1966	1966-08-09	1966-08-09
1967	1967-07-21	1967-07-21
1968	1968-07-09	1968-07-18
1969	1969-06-27	1969-08-15
1970	1970-07-24	1970-08-16
1975	1975-06-23	1975-08-02
1976	1976-06-06	1976-07-06
1977	1977-05-22	1977-08-29
1978	1978-05-28	1978-07-08
1979	1979-06-17	1979-07-25
1982	1982-07-17	1982-07-18
1983	1983-06-14	1983-07-04

Every Fixed Threshold

Fixed thresholds at Lambton
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	22	1918	4
35 C (95 F): Days	1	1	1919	1
90 F (32.2 C): Days	22	12	1918	2
0 C (32 F): Ice days (max	47	134	1926	84
0 C (32 F): Frost days (min	45	214	1956	188
-10 C (14 F): Days with min	45	128	1926	75
-20 C (-4 F): Days with min	45	52	1917	25
-30 C (-22 F): Days with min	38	9	1955	1
-40 C (-40 F): Days with min	1	2	1943	2
20 C (68 F): Tropical nights (min	30	9	1942	1
10 mm (0.39 in): Days with 10 mm or more rain	55	51	1969	39
25 mm (0.98 in): Days with 25 mm or more rain	55	13	1951	7
50 mm (1.97 in): Days with 50 mm or more rain	26	3	1925	1
100 mm (3.94 in): Days with 100 mm or more rain	1	0	n/a	1
10 cm (3.9 in): Days with 10 cm or more snowfall	56	18	1972	9
25 cm (9.8 in): Days with 25 cm or more snowfall	22	3	1972	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

Data for Lambton 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).

Lambton Threshold Days by Year (CA007024000)

Key Facts for Lambton Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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