Reedsburg Wwtp Threshold Days by Year (USC00477052)

19 fixed thresholds counted per year at Reedsburg Wwtp (USC00477052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Reedsburg Wwtp Thresholds

Reedsburg Wwtp: days with a maximum temperature at or above 30 C (86 F) in 71 years, most in 1988 with 61.
Reedsburg Wwtp: days with a maximum temperature at or below 0 C (32 F) in 71 years, most in 2014 with 92.
Reedsburg Wwtp: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 2018 with 46.
Reedsburg Wwtp: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 2018 with 18.
19 fixed thresholds have at least one qualifying day at Reedsburg Wwtp.

Days at or above 30 C (86 F)

71 years with a qualifying day

Days per year at Reedsburg Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 1988.

Days at or above 30 C (86 F) per year at Reedsburg Wwtp
Year	Days	Decade average
1915	9	28.5
1916	44	28.5
1917	23	28.5
1918	38	28.5
1945	26	37.8
1946	33	37.8
1947	52	37.8
1949	40	37.8
1950	15	28.1
1951	13	28.1
1952	42	28.1
1953	32	28.1
1954	25	28.1
1956	27	28.1
1957	32	28.1
1958	28	28.1
1959	39	28.1
1960	19	26.1
1961	36	26.1
1962	20	26.1
1963	40	26.1
1964	39	26.1
1965	20	26.1
1966	27	26.1
1967	15	26.1
1968	27	26.1
1969	18	26.1
1970	35	27
1971	24	27
1972	28	27
1973	27	27
1974	12	27
1975	34	27
1976	40	27
1977	33	27
1978	24	27
1979	13	27
1980	35	32.1
1981	19	32.1
1982	10	32.1
1983	44	32.1
1984	29	32.1
1985	26	32.1
1986	27	32.1
1987	40	32.1
1988	61	32.1
1989	30	32.1
1990	14	14
2002	24	20.7
2003	21	20.7
2004	4	20.7
2005	20	20.7
2006	19	20.7
2007	36	20.7
2010	28	26.5
2011	35	26.5
2012	53	26.5
2013	27	26.5
2014	8	26.5
2015	17	26.5
2016	27	26.5
2017	20	26.5
2018	30	26.5
2019	20	26.5
2020	30	25.3
2021	26	25.3
2022	20	25.3
2023	37	25.3
2024	19	25.3
2025	25	25.3
2026	20	25.3

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

First to last qualifying date each year at Reedsburg Wwtp
Year	First date	Last date
1915	1915-06-27	1915-08-14
1916	1916-07-01	1916-09-06
1917	1917-06-12	1917-08-26
1918	1918-05-03	1918-09-01
1945	1945-07-08	1945-09-07
1946	1946-05-27	1946-08-26
1947	1947-06-09	1947-10-21
1949	1949-05-04	1949-08-26
1950	1950-05-24	1950-10-18
1951	1951-05-20	1951-08-30
1952	1952-04-28	1952-09-28
1953	1953-05-30	1953-08-31
1954	1954-06-11	1954-09-06
1956	1956-05-22	1956-08-28
1957	1957-05-01	1957-09-01
1958	1958-06-30	1958-09-03
1959	1959-05-02	1959-09-09
1960	1960-07-21	1960-09-08
1961	1961-06-10	1961-09-10
1962	1962-05-16	1962-08-29
1963	1963-05-08	1963-10-06
1964	1964-05-22	1964-09-07
1965	1965-05-02	1965-08-17
1966	1966-06-21	1966-09-01
1967	1967-05-18	1967-07-29
1968	1968-05-15	1968-08-23
1969	1969-05-27	1969-09-06
1970	1970-04-29	1970-09-07
1971	1971-06-04	1971-09-08
1972	1972-05-17	1972-08-29
1973	1973-06-08	1973-09-01
1974	1974-07-02	1974-08-26
1975	1975-05-18	1975-10-13
1976	1976-05-20	1976-10-01
1977	1977-04-15	1977-08-27
1978	1978-05-26	1978-09-19
1979	1979-05-10	1979-08-07
1980	1980-04-21	1980-08-26
1981	1981-06-05	1981-09-11
1982	1982-06-28	1982-08-18
1983	1983-06-10	1983-09-10
1984	1984-06-12	1984-09-24
1985	1985-04-18	1985-09-19
1986	1986-05-30	1986-08-25
1987	1987-04-20	1987-08-15
1988	1988-05-28	1988-09-18
1989	1989-05-23	1989-08-27
1990	1990-06-12	1990-09-08
2002	2002-04-16	2002-09-09
2003	2003-06-24	2003-09-08
2004	2004-06-08	2004-08-04
2005	2005-06-08	2005-09-12
2006	2006-05-29	2006-08-05
2007	2007-04-30	2007-10-08
2010	2010-05-24	2010-08-30
2011	2011-05-31	2011-09-02
2012	2012-05-20	2012-09-05
2013	2013-05-15	2013-09-11
2014	2014-06-01	2014-08-30
2015	2015-06-10	2015-09-07
2016	2016-05-07	2016-09-07
2017	2017-06-04	2017-09-26
2018	2018-05-25	2018-09-18
2019	2019-06-28	2019-10-01
2020	2020-05-26	2020-08-28
2021	2021-05-02	2021-09-20
2022	2022-05-11	2022-08-07
2023	2023-04-13	2023-10-02
2024	2024-05-19	2024-09-18
2025	2025-05-16	2025-10-04
2026	2026-05-27	2026-09-03

Every Fixed Threshold

Fixed thresholds at Reedsburg Wwtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	71	61	1988	20
35 C (95 F): Days	31	29	1988	1
40 C (104 F): Days	1	1	1988	1
90 F (32.2 C): Days	69	40	1988	8
100 F (37.8 C): Days	5	7	1988	1
0 C (32 F): Ice days (max	71	92	2014	38
0 C (32 F): Frost days (min	68	177	1976	97
-10 C (14 F): Days with min	68	86	2014	37
-20 C (-4 F): Days with min	68	40	1963	13
-30 C (-22 F): Days with min	29	8	1979	2
-40 C (-40 F): Days with min	2	1	1918	1
20 C (68 F): Tropical nights (min	68	23	1949	10
25 C (77 F): Days with min	12	3	2011	1
10 mm (0.39 in): Days with 10 mm or more rain	70	46	2018	23
25 mm (0.98 in): Days with 25 mm or more rain	70	18	2018	14
50 mm (1.97 in): Days with 50 mm or more rain	48	4	2010	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1980	1
10 cm (3.9 in): Days with 10 cm or more snowfall	59	9	1985	1
25 cm (9.8 in): Days with 25 cm or more snowfall	14	2	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

Data for Reedsburg Wwtp 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).

Reedsburg Wwtp Threshold Days by Year (USC00477052)

Key Facts for Reedsburg Wwtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related