Wallace Threshold Days by Year (USC00109498)

16 fixed thresholds counted per year at Wallace (USC00109498): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wallace Thresholds

Wallace: days with a maximum temperature at or above 30 C (86 F) in 75 years, most in 2021 with 59.
Wallace: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 1985 with 68.
Wallace: days with a maximum temperature at or above 90 F (32.2 C) in 74 years, most in 2021 with 41.
Wallace: nights with a minimum temperature at or below 0 C (32 F) in 72 years, most in 1964 with 196.
16 fixed thresholds have at least one qualifying day at Wallace.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Wallace with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 2021.

Days at or above 30 C (86 F) per year at Wallace
Year	Days	Decade average
1942	28	23.1
1943	20	23.1
1944	20	23.1
1945	30	23.1
1946	22	23.1
1947	28	23.1
1948	12	23.1
1949	25	23.1
1950	18	19.4
1951	25	19.4
1952	20	19.4
1953	19	19.4
1954	6	19.4
1956	17	19.4
1957	11	19.4
1958	37	19.4
1959	22	19.4
1961	37	30
1962	19	30
1963	31	30
1964	12	30
1965	23	30
1966	28	30
1967	56	30
1968	23	30
1969	41	30
1970	42	30.6
1971	33	30.6
1972	20	30.6
1973	38	30.6
1974	35	30.6
1975	26	30.6
1976	19	30.6
1977	34	30.6
1978	24	30.6
1979	35	30.6
1980	10	26.9
1981	35	26.9
1982	27	26.9
1983	24	26.9
1984	36	26.9
1985	39	26.9
1986	30	26.9
1987	27	26.9
1988	28	26.9
1989	13	26.9
1990	26	20.7
1991	18	20.7
1992	22	20.7
1993	6	20.7
1994	32	20.7
1995	11	20.7
1996	26	20.7
1997	13	20.7
1998	35	20.7
1999	18	20.7
2000	16	25.5
2001	32	25.5
2002	15	25.5
2007	39	25.5
2010	18	26.3
2011	20	26.3
2012	25	26.3
2013	41	26.3
2014	26	26.3
2015	34	26.3
2016	29	26.3
2018	28	26.3
2019	16	26.3
2020	29	31.5
2021	59	31.5
2022	32	31.5
2023	32	31.5
2024	33	31.5
2026	4	31.5

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

First to last qualifying date each year at Wallace
Year	First date	Last date
1942	1942-06-30	1942-09-05
1943	1943-07-06	1943-10-02
1944	1944-07-16	1944-09-12
1945	1945-06-21	1945-09-01
1946	1946-07-01	1946-09-14
1947	1947-05-06	1947-09-03
1948	1948-05-25	1948-09-15
1949	1949-05-10	1949-09-01
1950	1950-07-04	1950-09-04
1951	1951-07-04	1951-08-22
1952	1952-06-10	1952-08-22
1953	1953-07-08	1953-09-16
1954	1954-07-05	1954-08-02
1956	1956-06-01	1956-09-19
1957	1957-06-02	1957-10-01
1958	1958-05-23	1958-09-11
1959	1959-06-20	1959-09-13
1961	1961-06-04	1961-08-25
1962	1962-06-25	1962-09-27
1963	1963-06-15	1963-09-29
1964	1964-07-08	1964-08-18
1965	1965-06-11	1965-08-19
1966	1966-05-04	1966-09-23
1967	1967-06-20	1967-09-29
1968	1968-06-26	1968-08-08
1969	1969-05-23	1969-09-11
1970	1970-06-02	1970-08-31
1971	1971-06-23	1971-08-30
1972	1972-05-31	1972-08-30
1973	1973-05-16	1973-09-12
1974	1974-06-13	1974-09-25
1975	1975-07-03	1975-09-16
1976	1976-06-29	1976-09-11
1977	1977-04-25	1977-08-22
1978	1978-06-05	1978-09-27
1979	1979-06-12	1979-09-21
1980	1980-07-08	1980-08-01
1981	1981-06-26	1981-09-19
1982	1982-06-20	1982-09-07
1983	1983-05-28	1983-09-01
1984	1984-05-30	1984-09-05
1985	1985-05-24	1985-08-30
1986	1986-05-26	1986-08-29
1987	1987-04-28	1987-10-03
1988	1988-05-23	1988-09-06
1989	1989-07-07	1989-08-13
1990	1990-06-23	1990-09-15
1991	1991-07-04	1991-09-07
1992	1992-06-23	1992-10-01
1993	1993-05-12	1993-07-29
1994	1994-06-21	1994-09-25
1995	1995-07-10	1995-09-04
1996	1996-06-07	1996-09-13
1997	1997-07-06	1997-09-10
1998	1998-07-08	1998-09-16
1999	1999-05-25	1999-08-30
2000	2000-07-13	2000-09-15
2001	2001-05-24	2001-09-26
2002	2002-06-16	2002-09-15
2007	2007-06-01	2007-09-03
2010	2010-06-27	2010-08-26
2011	2011-07-17	2011-09-25
2012	2012-06-22	2012-08-26
2013	2013-06-29	2013-09-16
2014	2014-07-03	2014-08-13
2015	2015-06-07	2015-08-27
2016	2016-04-21	2016-08-30
2018	2018-05-15	2018-08-15
2019	2019-06-12	2019-09-05
2020	2020-05-29	2020-09-04
2021	2021-06-01	2021-08-17
2022	2022-07-02	2022-09-02
2023	2023-05-02	2023-08-18
2024	2024-06-13	2024-09-08
2026	2026-05-28	2026-06-25

Every Fixed Threshold

Fixed thresholds at Wallace
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	59	2021	4
35 C (95 F): Days	57	18	1967	10
40 C (104 F): Days	3	1	1961	1
90 F (32.2 C): Days	74	41	2021	23
100 F (37.8 C): Days	13	5	2021	2
0 C (32 F): Ice days (max	75	68	1985	10
0 C (32 F): Frost days (min	72	196	1964	80
-10 C (14 F): Days with min	72	76	1985	1
-20 C (-4 F): Days with min	45	17	1949	5
-30 C (-22 F): Days with min	6	3	1950	2
20 C (68 F): Tropical nights (min	1	3	2021	3
10 mm (0.39 in): Days with 10 mm or more rain	69	48	1996	17
25 mm (0.98 in): Days with 25 mm or more rain	65	11	2012	3
50 mm (1.97 in): Days with 50 mm or more rain	14	2	1946	1
10 cm (3.9 in): Days with 10 cm or more snowfall	67	16	1996	2
25 cm (9.8 in): Days with 25 cm or more snowfall	17	3	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

Data for Wallace 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Wallace Threshold Days by Year (USC00109498)

Key Facts for Wallace Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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