De Quincy Threshold Days by Year (USC00162361)

16 fixed thresholds counted per year at De Quincy (USC00162361): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for De Quincy Thresholds

De Quincy: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1973 with 64.
De Quincy: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1973 with 33.
De Quincy: days with 50 mm (1.97 in) or more of precipitation in 55 years, most in 1944 with 12.
De Quincy: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1963 with 176.
16 fixed thresholds have at least one qualifying day at De Quincy.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at De Quincy with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 176 in 1963.

Days at or above 30 C (86 F) per year at De Quincy
Year	Days	Decade average
1955	151	139
1956	156	139
1957	125	139
1958	125	139
1959	138	139
1960	139	138.9
1961	123	138.9
1962	152	138.9
1963	176	138.9
1964	122	138.9
1965	142	138.9
1966	131	138.9
1967	134	138.9
1968	127	138.9
1969	143	138.9
1970	126	132
1971	130	132
1972	144	132
1973	133	132
1974	126	132
1975	118	132
1976	121	132
1977	147	132
1978	148	132
1979	127	132
1980	139	129.7
1981	146	129.7
1982	125	129.7
1983	102	129.7
1984	124	129.7
1985	135	129.7
1986	139	129.7
1987	126	129.7
1988	131	129.7
1996	130	126.8
1997	119	126.8
1998	132	126.8
1999	126	126.8
2000	123	119
2001	119	119
2002	115	119

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

First to last qualifying date each year at De Quincy
Year	First date	Last date
1955	1955-03-11	1955-10-24
1956	1956-04-15	1956-11-02
1957	1957-02-05	1957-10-04
1958	1958-04-25	1958-10-21
1959	1959-03-26	1959-10-13
1960	1960-04-07	1960-10-13
1961	1961-04-27	1961-11-01
1962	1962-04-28	1962-10-16
1963	1963-03-17	1963-11-06
1964	1964-04-23	1964-09-26
1965	1965-04-09	1965-10-18
1966	1966-03-31	1966-10-14
1967	1967-03-14	1967-10-25
1968	1968-04-20	1968-10-19
1969	1969-04-24	1969-11-11
1970	1970-04-23	1970-10-27
1971	1971-04-24	1971-11-03
1972	1972-03-29	1972-11-02
1973	1973-04-26	1973-11-05
1974	1974-03-20	1974-10-14
1975	1975-04-26	1975-10-30
1976	1976-05-08	1976-10-05
1977	1977-04-20	1977-10-31
1978	1978-04-19	1978-11-03
1979	1979-04-18	1979-10-22
1980	1980-04-04	1980-10-18
1981	1981-04-13	1981-10-18
1982	1982-03-21	1982-10-09
1983	1983-05-24	1983-10-06
1984	1984-05-04	1984-10-31
1985	1985-04-16	1985-10-19
1986	1986-04-09	1986-10-06
1987	1987-04-18	1987-11-04
1988	1988-04-25	1988-11-10
1996	1996-04-14	1996-10-28
1997	1997-05-16	1997-10-12
1998	1998-05-08	1998-10-06
1999	1999-04-12	1999-10-15
2000	2000-05-03	2000-10-06
2001	2001-04-14	2001-10-25
2002	2002-04-29	2002-10-07

Every Fixed Threshold

Fixed thresholds at De Quincy
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	176	1963	115
35 C (95 F): Days	41	66	1980	7
40 C (104 F): Days	4	5	2000	5
90 F (32.2 C): Days	41	119	1962	72
100 F (37.8 C): Days	9	19	1980	8
0 C (32 F): Ice days (max	10	4	1983	2
0 C (32 F): Frost days (min	39	52	1976	34
-10 C (14 F): Days with min	6	4	1962	1
20 C (68 F): Tropical nights (min	39	136	1986	122
25 C (77 F): Days with min	20	28	1957	2
10 mm (0.39 in): Days with 10 mm or more rain	55	64	1973	38
25 mm (0.98 in): Days with 25 mm or more rain	55	33	1973	27
50 mm (1.97 in): Days with 50 mm or more rain	55	12	1944	11
100 mm (3.94 in): Days with 100 mm or more rain	38	3	1944	3
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1964	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

Data for De Quincy 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).

De Quincy Threshold Days by Year (USC00162361)

Key Facts for De Quincy Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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