Bay City Threshold Days by Year

19 fixed thresholds counted per year at Bay City (USC00200568): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bay City Thresholds

Bay City: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 1955 with 60.
Bay City: days with a maximum temperature at or above 90 F (32.2 C) in 75 years, most in 1921 with 34.
Bay City: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 1904 with 80.
Bay City: nights with a minimum temperature at or below 0 C (32 F) in 75 years, most in 1907 with 181.
19 fixed thresholds have at least one qualifying day at Bay City.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Bay City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1955.

Days at or above 30 C (86 F) per year at Bay City
Year	Days	Decade average
1898	22	23.5
1899	25	23.5
1900	40	25.2
1901	33	25.2
1903	17	25.2
1904	11	25.2
1905	8	25.2
1906	31	25.2
1907	19	25.2
1908	39	25.2
1909	29	25.2
1910	29	37.1
1911	41	37.1
1912	31	37.1
1913	46	37.1
1916	44	37.1
1917	22	37.1
1918	39	37.1
1919	45	37.1
1920	25	30
1921	51	30
1922	35	30
1923	36	30
1924	15	30
1925	33	30
1926	22	30
1927	26	30
1928	31	30
1929	26	30
1930	55	44.4
1931	51	44.4
1932	37	44.4
1933	53	44.4
1934	46	44.4
1935	32	44.4
1936	45	44.4
1937	43	44.4
1938	37	44.4
1939	45	44.4
1940	30	33.9
1941	52	33.9
1942	26	33.9
1943	29	33.9
1944	43	33.9
1945	21	33.9
1946	26	33.9
1947	32	33.9
1948	37	33.9
1949	43	33.9
1950	18	33.5
1951	21	33.5
1952	51	33.5
1953	33	33.5
1954	36	33.5
1955	60	33.5
1956	20	33.5
1957	22	33.5
1958	25	33.5
1959	49	33.5
1960	15	21.3
1961	24	21.3
1962	22	21.3
1963	26	21.3
1964	25	21.3
1965	15	21.3
1966	25	21.3
1967	14	21.3
1968	25	21.3
1969	22	21.3
1970	25	24.5
1971	33	24.5
1972	17	24.5
1974	15	24.5
1975	27	24.5
1976	30	24.5

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

First to last qualifying date each year at Bay City
Year	First date	Last date
1898	1898-06-04	1898-09-03
1899	1899-04-29	1899-09-16
1900	1900-06-24	1900-10-06
1901	1901-06-22	1901-09-07
1903	1903-06-08	1903-09-12
1904	1904-06-04	1904-08-21
1905	1905-06-17	1905-08-29
1906	1906-05-17	1906-09-17
1907	1907-06-16	1907-09-15
1908	1908-05-25	1908-09-27
1909	1909-05-29	1909-09-14
1910	1910-06-14	1910-08-21
1911	1911-05-17	1911-09-01
1912	1912-05-24	1912-09-10
1913	1913-05-02	1913-09-07
1916	1916-06-11	1916-10-08
1917	1917-06-26	1917-09-02
1918	1918-05-26	1918-08-25
1919	1919-05-29	1919-09-29
1920	1920-06-09	1920-09-26
1921	1921-05-20	1921-09-30
1922	1922-05-11	1922-10-05
1923	1923-06-01	1923-09-27
1924	1924-06-20	1924-08-31
1925	1925-05-31	1925-09-04
1926	1926-06-13	1926-08-29
1927	1927-06-28	1927-09-18
1928	1928-05-03	1928-10-11
1929	1929-05-29	1929-09-05
1930	1930-05-09	1930-09-25
1931	1931-05-18	1931-09-22
1932	1932-05-15	1932-09-19
1933	1933-05-25	1933-09-09
1934	1934-05-19	1934-09-14
1935	1935-06-30	1935-09-25
1936	1936-05-07	1936-09-23
1937	1937-05-30	1937-09-23
1938	1938-06-15	1938-08-23
1939	1939-05-19	1939-09-16
1940	1940-06-02	1940-09-20
1941	1941-05-05	1941-09-22
1942	1942-05-01	1942-09-17
1943	1943-06-19	1943-09-02
1944	1944-05-26	1944-08-22
1945	1945-06-23	1945-09-08
1946	1946-06-16	1946-09-28
1947	1947-06-10	1947-09-10
1948	1948-06-01	1948-09-19
1949	1949-05-04	1949-09-04
1950	1950-06-08	1950-08-24
1951	1951-05-20	1951-10-05
1952	1952-05-05	1952-09-14
1953	1953-06-19	1953-10-03
1954	1954-06-09	1954-09-06
1955	1955-05-03	1955-09-19
1956	1956-06-09	1956-09-01
1957	1957-06-14	1957-08-12
1958	1958-06-29	1958-08-31
1959	1959-05-06	1959-09-09
1960	1960-07-09	1960-09-08
1961	1961-06-12	1961-09-22
1962	1962-05-15	1962-09-12
1963	1963-06-02	1963-08-22
1964	1964-05-22	1964-09-10
1965	1965-05-25	1965-09-19
1966	1966-06-04	1966-08-07
1967	1967-06-12	1967-08-17
1968	1968-05-15	1968-09-04
1969	1969-05-28	1969-08-31
1970	1970-05-21	1970-08-30
1971	1971-05-18	1971-09-08
1972	1972-05-29	1972-08-22
1974	1974-06-05	1974-08-26
1975	1975-05-19	1975-08-13
1976	1976-06-07	1976-09-14

Every Fixed Threshold

Fixed thresholds at Bay City
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	60	1955	30
35 C (95 F): Days	60	19	1931	1
40 C (104 F): Days	4	7	1936	7
90 F (32.2 C): Days	75	34	1921	10
100 F (37.8 C): Days	12	7	1936	1
110 F (43.3 C): Days	1	1	1911	1
0 C (32 F): Ice days (max	75	80	1904	72
0 C (32 F): Frost days (min	75	181	1907	132
-10 C (14 F): Days with min	75	74	1904	54
-20 C (-4 F): Days with min	54	23	1904	7
-30 C (-22 F): Days with min	6	2	1918	1
20 C (68 F): Tropical nights (min	75	33	1949	12
25 C (77 F): Days with min	12	5	1918	2
10 mm (0.39 in): Days with 10 mm or more rain	75	39	1911	19
25 mm (0.98 in): Days with 25 mm or more rain	72	20	1909	3
50 mm (1.97 in): Days with 50 mm or more rain	34	4	1903	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	40	9	1908	3
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1904	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Bay City 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).

Bay City Threshold Days by Year

Key Facts for Bay City Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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