Douglas Caa AP Threshold Days by Year (USW00024019)

17 fixed thresholds counted per year at Douglas Caa AP (USW00024019): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Douglas Caa AP Thresholds

Douglas Caa AP: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1971 with 13.
Douglas Caa AP: days with 10 cm (3.9 in) or more of snowfall in 40 years, most in 1971 with 8.
Douglas Caa AP: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1988 with 73.
Douglas Caa AP: days with a maximum temperature at or above 35 C (95 F) in 37 years, most in 1966 with 18.
17 fixed thresholds have at least one qualifying day at Douglas Caa AP.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Douglas Caa AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 73 in 1988.

Days at or above 30 C (86 F) per year at Douglas Caa AP
Year	Days	Decade average
1948	57	55
1949	53	55
1950	32	51.6
1951	37	51.6
1952	62	51.6
1953	59	51.6
1954	67	51.6
1955	55	51.6
1956	55	51.6
1957	40	51.6
1958	39	51.6
1959	70	51.6
1963	66	53.2
1964	56	53.2
1965	26	53.2
1966	70	53.2
1967	45	53.2
1969	56	53.2
1970	56	47.5
1971	54	47.5
1972	30	47.5
1973	41	47.5
1974	54	47.5
1976	51	47.5
1977	44	47.5
1978	50	47.5
1980	47	54.6
1981	52	54.6
1984	57	54.6
1985	50	54.6
1987	46	54.6
1988	73	54.6
1989	57	54.6
1991	53	42.8
1992	37	42.8
1993	20	42.8
1994	61	42.8

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

First to last qualifying date each year at Douglas Caa AP
Year	First date	Last date
1948	1948-05-17	1948-09-18
1949	1949-06-16	1949-09-25
1950	1950-06-06	1950-09-06
1951	1951-07-04	1951-09-10
1952	1952-05-03	1952-09-27
1953	1953-06-10	1953-10-01
1954	1954-05-20	1954-09-22
1955	1955-05-21	1955-09-16
1956	1956-06-04	1956-09-20
1957	1957-06-29	1957-09-29
1958	1958-05-28	1958-10-05
1959	1959-06-06	1959-09-14
1963	1963-05-07	1963-10-05
1964	1964-05-20	1964-09-17
1965	1965-07-04	1965-08-28
1966	1966-05-05	1966-09-24
1967	1967-05-23	1967-09-29
1969	1969-05-25	1969-09-28
1970	1970-06-22	1970-09-08
1971	1971-06-16	1971-09-13
1972	1972-06-01	1972-08-18
1973	1973-06-08	1973-08-31
1974	1974-06-13	1974-09-10
1976	1976-05-14	1976-09-17
1977	1977-06-01	1977-09-08
1978	1978-05-14	1978-09-10
1980	1980-06-11	1980-09-30
1981	1981-06-06	1981-09-19
1984	1984-05-23	1984-09-19
1985	1985-06-13	1985-09-14
1987	1987-05-15	1987-09-26
1988	1988-05-13	1988-09-17
1989	1989-04-22	1989-09-30
1991	1991-06-17	1991-09-28
1992	1992-05-06	1992-10-02
1993	1993-06-15	1993-09-11
1994	1994-05-16	1994-09-28

Every Fixed Threshold

Fixed thresholds at Douglas Caa AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	73	1988	61
35 C (95 F): Days	37	18	1966	9
40 C (104 F): Days	1	1	1954	1
90 F (32.2 C): Days	37	47	1988	35
100 F (37.8 C): Days	13	5	1954	1
0 C (32 F): Ice days (max	37	64	1978	23
0 C (32 F): Frost days (min	37	206	1970	173
-10 C (14 F): Days with min	37	90	1951	55
-20 C (-4 F): Days with min	37	32	1978	5
-30 C (-22 F): Days with min	26	9	1972	3
-40 C (-40 F): Days with min	1	1	1989	1
20 C (68 F): Tropical nights (min	5	1	1955	1
10 mm (0.39 in): Days with 10 mm or more rain	41	13	1971	5
25 mm (0.98 in): Days with 25 mm or more rain	24	4	1976	2
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	40	8	1971	2
25 cm (9.8 in): Days with 25 cm or more snowfall	9	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Douglas Caa 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Douglas Caa AP Threshold Days by Year (USW00024019)

Key Facts for Douglas Caa AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related