Cook STN Threshold Days by Year (USC00231870)

19 fixed thresholds counted per year at Cook STN (USC00231870): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cook STN Thresholds

Cook STN: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1949 with 54.
Cook STN: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1945 with 23.
Cook STN: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1945 with 8.
Cook STN: days with 10 cm (3.9 in) or more of snowfall in 24 years, most in 1960 with 3.
19 fixed thresholds have at least one qualifying day at Cook STN.

Days at or above 30 C (86 F)

23 years with a qualifying day

Days per year at Cook STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 115 in 1980.

Days at or above 30 C (86 F) per year at Cook STN
Year	Days	Decade average
1962	96	81
1963	96	81
1964	86	81
1965	79	81
1966	67	81
1967	61	81
1968	74	81
1969	89	81
1970	81	76
1971	93	76
1972	84	76
1973	73	76
1974	62	76
1975	56	76
1976	75	76
1977	83	76
1978	86	76
1979	67	76
1980	115	82
1981	70	82
1982	54	82
1983	86	82
1984	85	82

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

First to last qualifying date each year at Cook STN
Year	First date	Last date
1962	1962-02-13	1962-10-12
1963	1963-03-29	1963-10-22
1964	1964-05-16	1964-09-20
1965	1965-04-08	1965-10-18
1966	1966-05-05	1966-10-09
1967	1967-03-12	1967-10-05
1968	1968-05-01	1968-10-15
1969	1969-04-16	1969-10-04
1970	1970-04-27	1970-09-22
1971	1971-04-12	1971-10-03
1972	1972-04-12	1972-09-26
1973	1973-06-09	1973-10-03
1974	1974-05-16	1974-08-27
1975	1975-05-18	1975-10-13
1976	1976-04-23	1976-10-12
1977	1977-04-16	1977-10-27
1978	1978-04-08	1978-10-21
1979	1979-05-08	1979-10-21
1980	1980-04-21	1980-10-09
1981	1981-04-13	1981-10-05
1982	1982-05-05	1982-10-05
1983	1983-05-28	1983-10-03
1984	1984-04-24	1984-09-24

Every Fixed Threshold

Fixed thresholds at Cook STN
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	23	115	1980	85
35 C (95 F): Days	23	59	1980	15
40 C (104 F): Days	4	17	1980	1
90 F (32.2 C): Days	23	87	1980	43
100 F (37.8 C): Days	13	33	1980	2
110 F (43.3 C): Days	1	4	1980	4
0 C (32 F): Ice days (max	23	39	1978	10
0 C (32 F): Frost days (min	21	143	1978	121
-10 C (14 F): Days with min	21	47	1979	24
-20 C (-4 F): Days with min	17	11	1977	3
-30 C (-22 F): Days with min	2	3	1977	1
20 C (68 F): Tropical nights (min	21	28	1983	16
25 C (77 F): Days with min	3	2	1973	2
10 mm (0.39 in): Days with 10 mm or more rain	41	54	1949	40
25 mm (0.98 in): Days with 25 mm or more rain	41	23	1945	16
50 mm (1.97 in): Days with 50 mm or more rain	36	8	1945	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	3	1960	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1973	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

Data for Cook STN 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).

Cook STN Threshold Days by Year (USC00231870)

Key Facts for Cook STN Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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