Amidon Threshold Days by Year (USC00320209)

20 fixed thresholds counted per year at Amidon (USC00320209): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Amidon Thresholds

Amidon: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1946 with 199.
Amidon: nights with a minimum temperature at or below -10 C (14 F) in 64 years, most in 1955 with 112.
Amidon: nights with a minimum temperature at or below -20 C (-4 F) in 64 years, most in 1949 with 49.
Amidon: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 2001 with 75.
20 fixed thresholds have at least one qualifying day at Amidon.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Amidon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 75 in 2001.

Days at or above 30 C (86 F) per year at Amidon
Year	Days	Decade average
1921	49	34.3
1922	40	34.3
1923	31	34.3
1924	17	34.3
1938	51	57.5
1939	64	57.5
1940	56	41.1
1941	42	41.1
1942	28	41.1
1943	41	41.1
1944	33	41.1
1945	34	41.1
1946	41	41.1
1947	39	41.1
1948	41	41.1
1949	56	41.1
1950	34	36
1951	24	36
1952	46	36
1953	32	36
1954	29	36
1955	44	36
1956	30	36
1959	49	36
1960	37	31.2
1962	20	31.2
1963	37	31.2
1964	37	31.2
1965	19	31.2
1966	36	31.2
1967	34	31.2
1968	24	31.2
1969	37	31.2
1970	48	26.8
1971	28	26.8
1972	19	26.8
1975	17	26.8
1978	29	26.8
1979	20	26.8
1980	42	37
1981	31	37
1982	28	37
1983	46	37
1984	35	37
1985	24	37
1986	25	37
1987	23	37
1988	64	37
1989	52	37
1990	54	43.3
1991	43	43.3
1992	25	43.3
1993	10	43.3
1994	46	43.3
1995	49	43.3
1996	48	43.3
1997	55	43.3
1998	60	43.3
1999	43	43.3
2000	59	62
2001	75	62
2002	61	62
2003	53	62

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

First to last qualifying date each year at Amidon
Year	First date	Last date
1921	1921-06-11	1921-09-02
1922	1922-06-04	1922-10-03
1923	1923-05-26	1923-09-21
1924	1924-07-10	1924-09-30
1938	1938-04-30	1938-10-03
1939	1939-04-30	1939-09-21
1940	1940-05-11	1940-10-20
1941	1941-05-17	1941-09-20
1942	1942-04-14	1942-09-10
1943	1943-05-28	1943-09-29
1944	1944-05-13	1944-08-29
1945	1945-06-21	1945-09-06
1946	1946-06-09	1946-09-16
1947	1947-07-02	1947-09-23
1948	1948-05-18	1948-09-18
1949	1949-04-29	1949-09-24
1950	1950-06-06	1950-09-07
1951	1951-05-24	1951-08-24
1952	1952-04-27	1952-09-28
1953	1953-06-13	1953-10-02
1954	1954-05-21	1954-09-01
1955	1955-05-02	1955-10-11
1956	1956-05-22	1956-10-13
1959	1959-06-07	1959-09-14
1960	1960-06-26	1960-09-21
1962	1962-04-25	1962-09-08
1963	1963-06-30	1963-10-05
1964	1964-05-21	1964-09-18
1965	1965-06-26	1965-08-13
1966	1966-05-05	1966-09-21
1967	1967-07-06	1967-09-23
1968	1968-06-02	1968-09-15
1969	1969-05-26	1969-09-20
1970	1970-06-08	1970-09-19
1971	1971-07-03	1971-09-12
1972	1972-05-18	1972-09-20
1975	1975-06-25	1975-09-17
1978	1978-07-04	1978-09-11
1979	1979-06-12	1979-09-17
1980	1980-04-21	1980-09-08
1981	1981-06-27	1981-09-13
1982	1982-07-04	1982-09-11
1983	1983-06-11	1983-09-27
1984	1984-05-17	1984-09-19
1985	1985-05-04	1985-08-26
1986	1986-05-05	1986-08-31
1987	1987-04-19	1987-09-24
1988	1988-05-18	1988-09-17
1989	1989-04-22	1989-10-01
1990	1990-06-10	1990-09-26
1991	1991-05-22	1991-10-17
1992	1992-05-07	1992-10-02
1993	1993-06-21	1993-09-12
1994	1994-05-18	1994-09-25
1995	1995-06-02	1995-09-16
1996	1996-06-09	1996-09-05
1997	1997-06-01	1997-10-08
1998	1998-05-04	1998-09-19
1999	1999-05-29	1999-09-24
2000	2000-06-08	2000-10-02
2001	2001-04-28	2001-10-03
2002	2002-05-29	2002-09-18
2003	2003-05-30	2003-09-09

Every Fixed Threshold

Fixed thresholds at Amidon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	75	2001	53
35 C (95 F): Days	62	30	1988	24
40 C (104 F): Days	17	4	2002	3
90 F (32.2 C): Days	63	48	1988	42
100 F (37.8 C): Days	48	15	1988	8
0 C (32 F): Ice days (max	63	103	1978	64
0 C (32 F): Frost days (min	64	199	1946	151
-10 C (14 F): Days with min	64	112	1955	72
-20 C (-4 F): Days with min	64	49	1949	20
-30 C (-22 F): Days with min	51	12	1924	3
-40 C (-40 F): Days with min	1	2	1989	2
20 C (68 F): Tropical nights (min	37	7	1988	3
25 C (77 F): Days with min	2	1	1940	1
10 mm (0.39 in): Days with 10 mm or more rain	59	19	1941	8
25 mm (0.98 in): Days with 25 mm or more rain	52	8	1971	2
50 mm (1.97 in): Days with 50 mm or more rain	11	2	1941	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	26	5	2001	3
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1963	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1998	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

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Data for Amidon 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).

Amidon Threshold Days by Year (USC00320209)

Key Facts for Amidon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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