Belleville Threshold Days by Year (CA006150689)

19 fixed thresholds counted per year at Belleville (CA006150689): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Belleville Thresholds

Belleville: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1977 with 39.
Belleville: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 1947 with 10.
Belleville: days with 10 cm (3.9 in) or more of snowfall in 73 years, most in 1944 with 11.
Belleville: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1939 with 171.
19 fixed thresholds have at least one qualifying day at Belleville.

Days at or above 30 C (86 F)

61 years with a qualifying day

Days per year at Belleville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1921.

Days at or above 30 C (86 F) per year at Belleville
Year	Days	Decade average
1877	24	24
1903	3	3
1921	28	11.3
1922	3	11.3
1924	6	11.3
1925	14	11.3
1926	9	11.3
1927	9	11.3
1928	7	11.3
1929	14	11.3
1932	8	17.4
1933	23	17.4
1934	16	17.4
1935	18	17.4
1936	18	17.4
1937	22	17.4
1938	11	17.4
1939	23	17.4
1940	10	12
1941	19	12
1942	3	12
1943	6	12
1944	21	12
1945	5	12
1946	10	12
1947	10	12
1948	11	12
1949	25	12
1950	13	11.2
1951	3	11.2
1952	17	11.2
1953	22	11.2
1954	5	11.2
1955	26	11.2
1956	2	11.2
1957	6	11.2
1958	2	11.2
1959	16	11.2
1961	2	6.8
1962	7	6.8
1963	12	6.8
1964	11	6.8
1965	2	6.8
1966	13	6.8
1967	1	6.8
1968	8	6.8
1969	5	6.8
1970	10	7
1971	4	7
1972	2	7
1973	10	7
1974	3	7
1975	13	7
1976	3	7
1977	7	7
1978	8	7
1979	10	7
1980	2	10.5
1981	6	10.5
1982	6	10.5
1983	28	10.5

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

First to last qualifying date each year at Belleville
Year	First date	Last date
1877	1877-06-01	1877-09-15
1903	1903-05-20	1903-07-11
1921	1921-06-23	1921-09-11
1922	1922-08-19	1922-09-11
1924	1924-07-06	1924-08-31
1925	1925-06-04	1925-08-19
1926	1926-07-03	1926-08-13
1927	1927-06-29	1927-08-13
1928	1928-07-08	1928-08-15
1929	1929-06-18	1929-09-05
1932	1932-06-06	1932-09-02
1933	1933-06-09	1933-09-04
1934	1934-06-02	1934-08-19
1935	1935-07-05	1935-08-21
1936	1936-06-20	1936-08-19
1937	1937-06-26	1937-09-02
1938	1938-06-21	1938-08-17
1939	1939-06-09	1939-09-16
1940	1940-07-22	1940-08-17
1941	1941-06-18	1941-08-09
1942	1942-06-30	1942-07-19
1943	1943-06-22	1943-08-02
1944	1944-06-27	1944-08-16
1945	1945-06-23	1945-09-08
1946	1946-06-24	1946-08-09
1947	1947-06-23	1947-08-25
1948	1948-07-11	1948-09-13
1949	1949-06-13	1949-08-27
1950	1950-06-09	1950-08-27
1951	1951-07-26	1951-08-30
1952	1952-06-15	1952-09-13
1953	1953-06-20	1953-09-04
1954	1954-06-21	1954-07-30
1955	1955-06-18	1955-08-22
1956	1956-06-13	1956-08-08
1957	1957-06-17	1957-08-03
1958	1958-07-26	1958-07-27
1959	1959-06-10	1959-09-09
1961	1961-07-23	1961-09-04
1962	1962-05-17	1962-08-31
1963	1963-06-27	1963-07-28
1964	1964-06-20	1964-07-28
1965	1965-08-07	1965-08-15
1966	1966-06-23	1966-08-09
1967	1967-06-02	1967-06-02
1968	1968-07-01	1968-08-20
1969	1969-06-27	1969-08-16
1970	1970-07-27	1970-08-15
1971	1971-06-29	1971-08-20
1972	1972-07-12	1972-07-21
1973	1973-07-24	1973-09-05
1974	1974-07-04	1974-08-21
1975	1975-05-24	1975-08-12
1976	1976-06-06	1976-08-21
1977	1977-07-05	1977-07-21
1978	1978-05-30	1978-08-15
1979	1979-07-13	1979-08-08
1980	1980-07-11	1980-08-24
1981	1981-07-07	1981-07-13
1982	1982-07-07	1982-07-26
1983	1983-06-12	1983-09-10

Every Fixed Threshold

Fixed thresholds at Belleville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	61	28	1921	28
35 C (95 F): Days	11	5	1936	1
40 C (104 F): Days	1	1	1936	1
90 F (32.2 C): Days	43	10	1933	4
100 F (37.8 C): Days	2	3	1936	3
0 C (32 F): Ice days (max	62	83	1940	50
0 C (32 F): Frost days (min	63	171	1939	141
-10 C (14 F): Days with min	63	80	1940	44
-20 C (-4 F): Days with min	63	33	1948	7
-30 C (-22 F): Days with min	20	6	1934	3
20 C (68 F): Tropical nights (min	63	28	1973	18
25 C (77 F): Days with min	2	1	1921	1
10 mm (0.39 in): Days with 10 mm or more rain	73	39	1977	37
25 mm (0.98 in): Days with 25 mm or more rain	73	10	1947	7
50 mm (1.97 in): Days with 50 mm or more rain	29	3	1955	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	73	11	1944	5
25 cm (9.8 in): Days with 25 cm or more snowfall	27	5	1947	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1877.

Download the Data

Data for Belleville 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).

Belleville Threshold Days by Year (CA006150689)

Key Facts for Belleville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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