Weston Threshold Days by Year (USC00199360)

17 fixed thresholds counted per year at Weston (USC00199360): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Weston Thresholds

Weston: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1953 with 47.
Weston: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1898 with 21.
Weston: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 1944 with 60.
Weston: days with a maximum temperature at or above 90 F (32.2 C) in 45 years, most in 1944 with 40.
17 fixed thresholds have at least one qualifying day at Weston.

Days at or above 30 C (86 F)

45 years with a qualifying day

Days per year at Weston with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1944.

Days at or above 30 C (86 F) per year at Weston
Year	Days	Decade average
1897	8	15
1898	18	15
1899	19	15
1900	23	13.4
1901	19	13.4
1902	8	13.4
1903	12	13.4
1904	6	13.4
1905	17	13.4
1906	9	13.4
1930	31	34.8
1931	44	34.8
1933	33	34.8
1934	38	34.8
1935	29	34.8
1936	32	34.8
1937	41	34.8
1938	18	34.8
1939	47	34.8
1940	30	44.8
1941	55	44.8
1942	37	44.8
1943	49	44.8
1944	60	44.8
1945	52	44.8
1947	38	44.8
1948	38	44.8
1949	44	44.8
1950	38	41.8
1951	37	41.8
1952	56	41.8
1953	47	41.8
1954	27	41.8
1955	52	41.8
1956	38	41.8
1957	46	41.8
1958	27	41.8
1959	50	41.8
1960	35	40.4
1961	42	40.4
1962	23	40.4
1963	43	40.4
1964	25	40.4
1965	58	40.4
1966	57	40.4

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

First to last qualifying date each year at Weston
Year	First date	Last date
1897	1897-07-05	1897-09-10
1898	1898-06-12	1898-09-07
1899	1899-05-01	1899-08-19
1900	1900-05-15	1900-09-12
1901	1901-06-06	1901-07-31
1902	1902-05-23	1902-08-03
1903	1903-05-18	1903-09-14
1904	1904-05-26	1904-08-01
1905	1905-06-16	1905-08-24
1906	1906-05-16	1906-09-19
1930	1930-05-02	1930-10-13
1931	1931-05-28	1931-10-04
1933	1933-05-20	1933-09-02
1934	1934-05-05	1934-09-26
1935	1935-06-28	1935-08-22
1936	1936-05-08	1936-09-09
1937	1937-05-31	1937-09-04
1938	1938-06-21	1938-08-17
1939	1939-05-28	1939-10-10
1940	1940-06-03	1940-09-21
1941	1941-04-15	1941-10-05
1942	1942-04-30	1942-09-18
1943	1943-06-03	1943-09-16
1944	1944-05-04	1944-10-07
1945	1945-03-29	1945-09-29
1947	1947-05-13	1947-10-17
1948	1948-06-24	1948-09-18
1949	1949-05-05	1949-10-10
1950	1950-06-07	1950-10-01
1951	1951-05-15	1951-09-13
1952	1952-06-04	1952-09-29
1953	1953-05-10	1953-10-03
1954	1954-04-20	1954-10-13
1955	1955-05-22	1955-09-18
1956	1956-05-31	1956-10-16
1957	1957-04-21	1957-09-16
1958	1958-06-30	1958-09-26
1959	1959-05-12	1959-09-24
1960	1960-06-17	1960-09-09
1961	1961-05-14	1961-09-14
1962	1962-04-27	1962-09-10
1963	1963-05-09	1963-10-27
1964	1964-05-07	1964-09-11
1965	1965-05-09	1965-09-24
1966	1966-05-27	1966-09-02

Every Fixed Threshold

Fixed thresholds at Weston
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	45	60	1944	57
35 C (95 F): Days	25	15	1944	5
90 F (32.2 C): Days	45	40	1944	33
100 F (37.8 C): Days	5	6	1944	1
0 C (32 F): Ice days (max	45	62	1904	20
0 C (32 F): Frost days (min	45	175	1904	148
-10 C (14 F): Days with min	45	68	1904	29
-20 C (-4 F): Days with min	39	11	1904	2
20 C (68 F): Tropical nights (min	43	21	1948	4
25 C (77 F): Days with min	2	1	1948	1
10 mm (0.39 in): Days with 10 mm or more rain	46	47	1953	29
25 mm (0.98 in): Days with 25 mm or more rain	46	21	1898	6
50 mm (1.97 in): Days with 50 mm or more rain	38	5	1900	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1904	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	30	10	1956	7
25 cm (9.8 in): Days with 25 cm or more snowfall	12	3	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Weston 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Weston Threshold Days by Year (USC00199360)

Key Facts for Weston Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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