Chippewa Valley Rgnl AP Threshold Days by Year (USW00014991)

19 fixed thresholds counted per year at Chippewa Valley Rgnl AP (USW00014991): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chippewa Valley Rgnl AP Thresholds

Chippewa Valley Rgnl AP: days with a maximum temperature at or above 30 C (86 F) in 77 years, most in 1988 with 59.
Chippewa Valley Rgnl AP: days with a maximum temperature at or below 0 C (32 F) in 77 years, most in 1978 with 105.
Chippewa Valley Rgnl AP: nights with a minimum temperature at or below 0 C (32 F) in 77 years, most in 1976 with 191.
Chippewa Valley Rgnl AP: nights with a minimum temperature at or below -10 C (14 F) in 77 years, most in 1951 with 102.
19 fixed thresholds have at least one qualifying day at Chippewa Valley Rgnl AP.

Days at or above 30 C (86 F)

77 years with a qualifying day

Days per year at Chippewa Valley Rgnl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1988.

Days at or above 30 C (86 F) per year at Chippewa Valley Rgnl AP
Year	Days	Decade average
1950	16	22
1951	8	22
1952	31	22
1953	27	22
1954	18	22
1955	40	22
1956	14	22
1957	22	22
1958	16	22
1959	28	22
1960	25	27.1
1961	33	27.1
1962	18	27.1
1963	36	27.1
1964	40	27.1
1965	11	27.1
1966	36	27.1
1967	13	27.1
1968	28	27.1
1969	31	27.1
1970	43	30.4
1971	20	30.4
1972	31	30.4
1973	29	30.4
1974	31	30.4
1975	37	30.4
1976	45	30.4
1977	30	30.4
1978	29	30.4
1979	9	30.4
1980	33	32.5
1981	14	32.5
1982	28	32.5
1983	47	32.5
1984	24	32.5
1985	28	32.5
1986	22	32.5
1987	40	32.5
1988	59	32.5
1989	30	32.5
1990	24	25.7
1991	28	25.7
1992	16	25.7
1993	11	25.7
1994	21	25.7
1995	40	25.7
1996	23	25.7
1997	21	25.7
1998	40	25.7
1999	33	25.7
2000	18	29
2001	36	29
2002	38	29
2003	37	29
2004	14	29
2005	35	29
2006	43	29
2007	47	29
2008	12	29
2009	10	29
2010	28	25.3
2011	29	25.3
2012	51	25.3
2013	31	25.3
2014	12	25.3
2015	14	25.3
2016	22	25.3
2017	21	25.3
2018	34	25.3
2019	11	25.3
2020	33	31.7
2021	39	31.7
2022	26	31.7
2023	44	31.7
2024	25	31.7
2025	22	31.7
2026	33	31.7

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

First to last qualifying date each year at Chippewa Valley Rgnl AP
Year	First date	Last date
1950	1950-05-23	1950-08-24
1951	1951-05-01	1951-08-28
1952	1952-04-28	1952-09-13
1953	1953-05-29	1953-10-02
1954	1954-06-10	1954-08-24
1955	1955-05-02	1955-09-18
1956	1956-06-09	1956-08-28
1957	1957-05-01	1957-09-01
1958	1958-05-10	1958-08-19
1959	1959-05-02	1959-09-08
1960	1960-04-22	1960-09-07
1961	1961-06-05	1961-09-10
1962	1962-04-25	1962-08-28
1963	1963-05-07	1963-08-08
1964	1964-05-18	1964-08-29
1965	1965-05-02	1965-08-17
1966	1966-05-26	1966-09-01
1967	1967-05-26	1967-08-17
1968	1968-05-15	1968-09-03
1969	1969-05-27	1969-09-15
1970	1970-04-27	1970-09-07
1971	1971-06-04	1971-09-07
1972	1972-05-17	1972-08-30
1973	1973-06-09	1973-09-01
1974	1974-05-21	1974-08-25
1975	1975-05-18	1975-08-23
1976	1976-06-06	1976-10-01
1977	1977-04-27	1977-08-27
1978	1978-05-26	1978-09-11
1979	1979-06-14	1979-08-31
1980	1980-04-21	1980-09-08
1981	1981-06-07	1981-09-10
1982	1982-05-14	1982-09-11
1983	1983-06-10	1983-09-09
1984	1984-06-05	1984-09-19
1985	1985-04-18	1985-09-19
1986	1986-05-28	1986-09-26
1987	1987-04-18	1987-09-27
1988	1988-05-20	1988-09-17
1989	1989-05-17	1989-08-12
1990	1990-05-07	1990-09-13
1991	1991-04-06	1991-08-30
1992	1992-05-01	1992-08-24
1993	1993-06-11	1993-08-26
1994	1994-05-20	1994-09-11
1995	1995-06-03	1995-10-12
1996	1996-05-18	1996-09-06
1997	1997-06-01	1997-10-03
1998	1998-05-14	1998-09-19
1999	1999-05-28	1999-09-04
2000	2000-05-04	2000-08-31
2001	2001-05-15	2001-08-22
2002	2002-04-15	2002-09-09
2003	2003-04-14	2003-09-11
2004	2004-06-07	2004-09-12
2005	2005-06-02	2005-09-21
2006	2006-05-24	2006-08-21
2007	2007-04-29	2007-10-06
2008	2008-06-25	2008-09-02
2009	2009-04-24	2009-08-14
2010	2010-05-24	2010-08-30
2011	2011-05-30	2011-09-12
2012	2012-05-18	2012-09-11
2013	2013-05-14	2013-09-11
2014	2014-05-26	2014-08-25
2015	2015-06-09	2015-09-05
2016	2016-05-06	2016-08-18
2017	2017-06-02	2017-09-24
2018	2018-05-24	2018-09-17
2019	2019-05-31	2019-08-04
2020	2020-06-02	2020-08-27
2021	2021-05-01	2021-09-19
2022	2022-05-12	2022-09-07
2023	2023-04-12	2023-10-02
2024	2024-05-12	2024-09-28
2025	2025-05-13	2025-10-04
2026	2026-05-15	2026-10-11

Every Fixed Threshold

Fixed thresholds at Chippewa Valley Rgnl AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	77	59	1988	33
35 C (95 F): Days	49	23	1988	2
40 C (104 F): Days	1	2	1988	2
90 F (32.2 C): Days	76	45	1988	11
100 F (37.8 C): Days	11	9	1988	1
0 C (32 F): Ice days (max	77	105	1978	44
0 C (32 F): Frost days (min	77	191	1976	102
-10 C (14 F): Days with min	77	102	1951	40
-20 C (-4 F): Days with min	77	48	1950	13
-30 C (-22 F): Days with min	48	14	1950	3
-40 C (-40 F): Days with min	1	1	1951	1
20 C (68 F): Tropical nights (min	74	24	1983	14
25 C (77 F): Days with min	14	2	2013	1
10 mm (0.39 in): Days with 10 mm or more rain	77	38	2014	22
25 mm (0.98 in): Days with 25 mm or more rain	77	13	1973	3
50 mm (1.97 in): Days with 50 mm or more rain	53	5	1975	1
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1959	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	12	2019	2
25 cm (9.8 in): Days with 25 cm or more snowfall	10	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

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Data for Chippewa Valley Rgnl AP 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).

Chippewa Valley Rgnl AP Threshold Days by Year (USW00014991)

Key Facts for Chippewa Valley Rgnl AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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