Danbury Threshold Days by Year (USC00061762)

19 fixed thresholds counted per year at Danbury (USC00061762): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Danbury Thresholds

Danbury: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 2018 with 54.
Danbury: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1983 with 28.
Danbury: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 2007 with 64.
Danbury: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 1978 with 51.
19 fixed thresholds have at least one qualifying day at Danbury.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Danbury with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 2007.

Days at or above 30 C (86 F) per year at Danbury
Year	Days	Decade average
1938	34	40.5
1939	47	40.5
1946	20	28
1947	22	28
1948	36	28
1949	34	28
1950	15	27.7
1951	17	27.7
1952	31	27.7
1953	38	27.7
1954	24	27.7
1955	38	27.7
1956	21	27.7
1957	30	27.7
1958	17	27.7
1959	46	27.7
1960	15	27.9
1961	35	27.9
1962	18	27.9
1963	23	27.9
1964	29	27.9
1965	33	27.9
1966	53	27.9
1967	17	27.9
1968	28	27.9
1969	28	27.9
1970	24	24.8
1971	22	24.8
1972	19	24.8
1973	36	24.8
1974	22	24.8
1975	28	24.8
1976	20	24.8
1977	29	24.8
1978	22	24.8
1979	26	24.8
1980	40	29.7
1981	32	29.7
1982	14	29.7
1983	51	29.7
1984	26	29.7
1985	15	29.7
1991	61	42.9
1992	22	42.9
1993	57	42.9
1994	46	42.9
1995	46	42.9
1996	10	42.9
1997	31	42.9
1998	59	42.9
1999	54	42.9
2000	30	45.4
2001	43	45.4
2002	62	45.4
2003	29	45.4
2004	32	45.4
2005	57	45.4
2006	46	45.4
2007	64	45.4
2011	33	38.6
2016	50	38.6
2017	30	38.6
2018	43	38.6
2019	37	38.6
2022	46	38
2023	32	38
2026	36	38

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

First to last qualifying date each year at Danbury
Year	First date	Last date
1938	1938-04-20	1938-10-17
1939	1939-04-25	1939-10-10
1946	1946-06-08	1946-09-20
1947	1947-05-13	1947-09-13
1948	1948-05-12	1948-09-18
1949	1949-05-05	1949-10-11
1950	1950-06-07	1950-09-01
1951	1951-05-16	1951-08-31
1952	1952-06-09	1952-09-13
1953	1953-06-05	1953-09-05
1954	1954-06-13	1954-10-13
1955	1955-05-05	1955-08-22
1956	1956-05-31	1956-09-05
1957	1957-05-10	1957-09-13
1958	1958-07-01	1958-09-26
1959	1959-05-12	1959-10-06
1960	1960-06-26	1960-09-08
1961	1961-06-06	1961-09-24
1962	1962-04-27	1962-09-14
1963	1963-05-09	1963-08-23
1964	1964-05-08	1964-09-11
1965	1965-05-10	1965-09-22
1966	1966-06-04	1966-09-02
1967	1967-06-02	1967-08-19
1968	1968-06-06	1968-08-25
1969	1969-05-29	1969-09-07
1970	1970-05-10	1970-09-26
1971	1971-06-07	1971-09-09
1972	1972-07-02	1972-09-17
1973	1973-06-05	1973-09-04
1974	1974-04-29	1974-08-24
1975	1975-05-20	1975-08-22
1976	1976-04-17	1976-08-26
1977	1977-04-12	1977-09-03
1978	1978-05-20	1978-08-29
1979	1979-05-09	1979-10-22
1980	1980-05-23	1980-09-22
1981	1981-05-25	1981-09-14
1982	1982-06-25	1982-09-12
1983	1983-06-12	1983-09-20
1984	1984-06-05	1984-08-17
1985	1985-04-22	1985-09-08
1991	1991-04-07	1991-09-17
1992	1992-05-21	1992-08-27
1993	1993-05-01	1993-09-15
1994	1994-04-27	1994-08-28
1995	1995-05-24	1995-09-07
1996	1996-05-19	1996-08-23
1997	1997-06-10	1997-08-17
1998	1998-03-30	1998-09-27
1999	1999-05-29	1999-09-03
2000	2000-05-05	2000-08-31
2001	2001-04-22	2001-09-13
2002	2002-04-16	2002-10-02
2003	2003-04-16	2003-08-27
2004	2004-04-19	2004-09-04
2005	2005-04-20	2005-09-14
2006	2006-05-28	2006-08-23
2007	2007-04-23	2007-10-08
2011	2011-05-27	2011-07-31
2016	2016-05-25	2016-09-23
2017	2017-04-11	2017-09-27
2018	2018-05-02	2018-09-16
2019	2019-06-26	2019-10-02
2022	2022-05-21	2022-09-10
2023	2023-04-13	2023-09-08
2026	2026-04-16	2026-08-14

Every Fixed Threshold

Fixed thresholds at Danbury
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	64	2007	36
35 C (95 F): Days	42	15	1999	4
40 C (104 F): Days	2	3	1991	1
90 F (32.2 C): Days	65	42	2002	11
100 F (37.8 C): Days	9	5	1991	1
0 C (32 F): Ice days (max	67	51	1978	28
0 C (32 F): Frost days (min	65	158	1947	77
-10 C (14 F): Days with min	65	51	1948	23
-20 C (-4 F): Days with min	38	12	1948	1
20 C (68 F): Tropical nights (min	64	38	2005	16
25 C (77 F): Days with min	4	1	1995	1
10 mm (0.39 in): Days with 10 mm or more rain	68	54	2018	27
25 mm (0.98 in): Days with 25 mm or more rain	68	28	1983	13
50 mm (1.97 in): Days with 50 mm or more rain	64	8	1955	4
100 mm (3.94 in): Days with 100 mm or more rain	19	3	1955	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1999	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	10	1996	5
25 cm (9.8 in): Days with 25 cm or more snowfall	26	3	1947	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

Data for Danbury 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).

Danbury Threshold Days by Year (USC00061762)

Key Facts for Danbury Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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