Tweed Threshold Days by Year

17 fixed thresholds counted per year at Tweed (CA006159010): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tweed Thresholds

Tweed: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1936 with 38.
Tweed: days with a maximum temperature at or below 0 C (32 F) in 40 years, most in 1926 with 89.
Tweed: nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 1956 with 188.
Tweed: nights with a minimum temperature at or below -10 C (14 F) in 40 years, most in 1940 with 93.
17 fixed thresholds have at least one qualifying day at Tweed.

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at Tweed with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1936.

Days at or above 30 C (86 F) per year at Tweed
Year	Days	Decade average
1926	8	9
1927	6	9
1928	13	9
1930	26	28.9
1931	28	28.9
1932	17	28.9
1933	32	28.9
1934	28	28.9
1935	28	28.9
1936	38	28.9
1937	38	28.9
1938	24	28.9
1939	30	28.9
1940	24	16.3
1941	33	16.3
1942	14	16.3
1943	10	16.3
1947	8	16.3
1948	9	16.3
1951	3	14.4
1952	24	14.4
1953	20	14.4
1954	5	14.4
1955	38	14.4
1956	4	14.4
1957	8	14.4
1958	4	14.4
1959	24	14.4
1960	6	11
1961	7	11
1962	13	11
1963	18	11
1964	15	11
1965	4	11
1966	20	11
1967	2	11
1968	12	11
1969	13	11
1970	14	13
1971	12	13

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

First to last qualifying date each year at Tweed
Year	First date	Last date
1926	1926-07-06	1926-08-13
1927	1927-05-22	1927-07-12
1928	1928-06-13	1928-08-28
1930	1930-05-07	1930-09-14
1931	1931-06-14	1931-09-13
1932	1932-06-05	1932-09-02
1933	1933-06-06	1933-09-04
1934	1934-05-04	1934-08-19
1935	1935-06-29	1935-08-21
1936	1936-05-08	1936-09-23
1937	1937-05-31	1937-09-03
1938	1938-06-20	1938-08-20
1939	1939-05-07	1939-09-16
1940	1940-06-03	1940-08-18
1941	1941-05-21	1941-09-22
1942	1942-04-24	1942-09-17
1943	1943-06-15	1943-09-05
1947	1947-06-29	1947-09-06
1948	1948-07-10	1948-08-29
1951	1951-07-27	1951-08-31
1952	1952-06-26	1952-09-13
1953	1953-05-10	1953-09-04
1954	1954-06-14	1954-08-25
1955	1955-05-04	1955-09-19
1956	1956-06-12	1956-06-15
1957	1957-06-16	1957-07-30
1958	1958-07-02	1958-08-06
1959	1959-06-08	1959-09-28
1960	1960-07-11	1960-09-08
1961	1961-06-29	1961-09-11
1962	1962-04-27	1962-08-31
1963	1963-06-06	1963-07-28
1964	1964-05-23	1964-07-28
1965	1965-05-26	1965-08-15
1966	1966-06-23	1966-08-09
1967	1967-06-15	1967-06-16
1968	1968-06-06	1968-08-20
1969	1969-05-29	1969-08-31
1970	1970-06-02	1970-08-26
1971	1971-06-20	1971-08-20

Every Fixed Threshold

Fixed thresholds at Tweed
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	38	1936	12
35 C (95 F): Days	14	6	1931	2
40 C (104 F): Days	2	2	1931	2
90 F (32.2 C): Days	33	20	1937	2
100 F (37.8 C): Days	2	4	1936	4
0 C (32 F): Ice days (max	40	89	1926	67
0 C (32 F): Frost days (min	40	188	1956	161
-10 C (14 F): Days with min	40	93	1940	77
-20 C (-4 F): Days with min	40	45	1934	24
-30 C (-22 F): Days with min	21	12	1934	5
-40 C (-40 F): Days with min	1	2	1934	2
20 C (68 F): Tropical nights (min	36	14	1959	2
10 mm (0.39 in): Days with 10 mm or more rain	38	38	1951	29
25 mm (0.98 in): Days with 25 mm or more rain	38	10	1940	1
50 mm (1.97 in): Days with 50 mm or more rain	12	3	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	38	13	1940	10
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1940	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Tweed 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Tweed Threshold Days by Year

Key Facts for Tweed Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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