Cook Weather Records (ASN00018110)

Record envelope, standing records and threshold days for Cook (ASN00018110), Australia, with 106 years of record.

Key Facts for Cook

Cook (ASN00018110) is a weather station in Australia at -30.61 latitude and 130.41 longitude, 120 m (394 ft) above sea level.
The station reports from 1918 to 2023, 106 years of record.
1,464 records set at Cook still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Cook set a daily record precipitation of 24.0 mm (0.9 in) on 28 January 2023.

About the Station

Location: Australia, -30.61 latitude, 130.41 longitude.
Elevation: 120 m (394 ft).
Period of record: 1918 to 2023, 106 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Cook. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Cook, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	48.7 C (119.7 F)	4.5 C (40.1 F)	n/a	n/a
Feb	46.7 C (116.1 F)	4.4 C (39.9 F)	n/a	n/a
Mar	46.5 C (115.7 F)	4.5 C (40.1 F)	n/a	n/a
Apr	41.1 C (106.0 F)	2.0 C (35.6 F)	n/a	n/a
May	36.0 C (96.8 F)	-1.8 C (28.8 F)	n/a	n/a
Jun	30.0 C (86.0 F)	-3.8 C (25.2 F)	n/a	n/a
Jul	34.2 C (93.6 F)	-4.5 C (23.9 F)	n/a	n/a
Aug	33.6 C (92.5 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	39.0 C (102.2 F)	-0.7 C (30.7 F)	n/a	n/a
Oct	43.5 C (110.3 F)	0.0 C (32.0 F)	n/a	n/a
Nov	46.5 C (115.7 F)	3.7 C (38.7 F)	n/a	n/a
Dec	46.3 C (115.3 F)	5.6 C (42.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cook still stand. 1960 holds the most, with 52.

Standing records at Cook by the year they were set
Year set	Standing records
1957	44
1958	36
1959	47
1960	52
1961	46
1962	38
1963	29
1964	35
1965	31
1966	28
1967	36
1968	43
1969	24
1970	50
1971	28
1972	33
1973	33
1974	28
1975	30
1976	43
1977	31
1978	27
1979	36
1980	32
1981	40
1982	35
1983	35
1984	38
1985	31
1986	38
1987	39
1988	32
1989	33
1990	39
1991	26
1992	31
1993	34
1994	44
1995	38
1996	33
1997	34
1998	4

All-Time Record Progression

1 new records

1 all-time records were set at Cook between 7 March 1983 and 7 March 1983. Each dot is a new record.

Wettest Day of Each Month

Mar: 80.8 mm (3.2 in)

The wettest day on record for each calendar month at Cook. The most was 80.8 mm (3.2 in) on 7 March 1983.

Record daily precipitation for each month at Cook
Month	Record daily precipitation (mm)	Date
Jan	78.0 mm (3.1 in)	21 January 1947
Feb	57.6 mm (2.3 in)	1 February 2006
Mar	80.8 mm (3.2 in)	7 March 1983
Apr	75.0 mm (3.0 in)	5 April 1974
May	41.0 mm (1.6 in)	31 May 1991
Jun	54.4 mm (2.1 in)	15 June 1955
Jul	32.0 mm (1.3 in)	14 July 2006
Aug	34.5 mm (1.4 in)	26 August 1996
Sep	39.6 mm (1.6 in)	3 September 2010
Oct	39.6 mm (1.6 in)	2 October 1992
Nov	49.0 mm (1.9 in)	10 November 2021
Dec	68.8 mm (2.7 in)	2 December 1966

Period of Record Coverage

1957 to 1998

42 years of record at Cook, 1957 to 1998. 1 years have data for under 90 percent of days and are left out of rankings: 1998.

Days with data per year at Cook
Year	Days with data	Share of year	Complete
1957	365	100%	Yes
1958	364	100%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	362	99%	Yes
1963	355	97%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	362	99%	Yes
1967	365	100%	Yes
1968	335	92%	Yes
1969	363	99%	Yes
1970	365	100%	Yes
1971	362	99%	Yes
1972	362	99%	Yes
1973	360	99%	Yes
1974	354	97%	Yes
1975	341	93%	Yes
1976	357	98%	Yes
1977	356	98%	Yes
1978	358	98%	Yes
1979	356	98%	Yes
1980	352	96%	Yes
1981	357	98%	Yes
1982	355	97%	Yes
1983	359	98%	Yes
1984	365	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	365	100%	Yes
1989	364	100%	Yes
1990	365	100%	Yes
1991	349	96%	Yes
1992	334	91%	Yes
1993	364	100%	Yes
1994	358	98%	Yes
1995	358	98%	Yes
1996	363	99%	Yes
1997	359	98%	Yes
1998	59	16%	No

Latest Records

Latest records at Cook
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 January 2023	Cook, AU	daily rain	24.0 mm (0.9 in)	20.8 mm (0.8 in)	33 years	20 of 100 (Routine)
19 June 2022	Cook, AU	daily rain	11.0 mm (0.4 in)	3.4 mm (0.13 in)	84 years	20 of 100 (Routine)
19 November 2021	Cook, AU	daily rain	20.0 mm (0.8 in)	0.4 mm (0.02 in)	47 years	20 of 100 (Routine)
10 November 2021	Cook, AU	monthly rain	49.0 mm (1.9 in)	16.0 mm (0.6 in)	81 years	78 of 100 (Major)
3 November 2021	Cook, AU	daily rain	12.0 mm (0.5 in)	0.6 mm (0.02 in)	48 years	20 of 100 (Routine)
13 December 2020	Cook, AU	daily rain	40.8 mm (1.6 in)	28.6 mm (1.1 in)	102 years	80 of 100 (Exceptional)
4 October 2020	Cook, AU	daily rain	13.0 mm (0.5 in)	3.2 mm (0.13 in)	28 years	20 of 100 (Routine)
18 September 2020	Cook, AU	daily rain	27.0 mm (1.1 in)	23.0 mm (0.9 in)	10 years	53 of 100 (Notable)
17 September 2020	Cook, AU	daily rain	10.0 mm (0.4 in)	2.8 mm (0.11 in)	11 years	18 of 100 (Routine)
3 January 2020	Cook, AU	daily rain	12.9 mm (0.5 in)	1.5 mm (0.06 in)	68 years	20 of 100 (Routine)
20 January 2019	Cook, AU	daily rain	3.0 mm (0.12 in)	0.6 mm (0.02 in)	44 years	20 of 100 (Routine)
19 January 2019	Cook, AU	daily rain	6.0 mm (0.24 in)	0.7 mm (0.03 in)	81 years	20 of 100 (Routine)
6 November 2018	Cook, AU	daily rain	12.4 mm (0.5 in)	6.4 mm (0.25 in)	12 years	20 of 100 (Routine)
5 November 2018	Cook, AU	daily rain	11.2 mm (0.4 in)	2.1 mm (0.08 in)	87 years	20 of 100 (Routine)
27 October 2018	Cook, AU	daily rain	21.0 mm (0.8 in)	8.7 mm (0.34 in)	7 years	20 of 100 (Routine)
23 August 2018	Cook, AU	daily rain	9.0 mm (0.35 in)	2.1 mm (0.08 in)	80 years	20 of 100 (Routine)
27 July 2018	Cook, AU	daily rain	12.0 mm (0.5 in)	10.2 mm (0.4 in)	32 years	20 of 100 (Routine)
26 May 2014	Cook, AU	daily rain	21.0 mm (0.8 in)	14.0 mm (0.6 in)	33 years	20 of 100 (Routine)
7 April 2014	Cook, AU	daily rain	32.0 mm (1.3 in)	23.9 mm (0.9 in)	69 years	61 of 100 (Major)
8 November 2013	Cook, AU	daily rain	20.4 mm (0.8 in)	10.0 mm (0.4 in)	16 years	20 of 100 (Routine)

Climate Trend

36 complete years, 1957 to 1997

One stripe for each of 36 complete years at Cook, 1957 to 1997. Blue stripes are years cooler than the station's own mean of 18.3 C (65.0 F); red stripes are warmer. The coolest year was 1958, at 17.6 C (63.7 F), and the warmest was 1980, at 19.2 C (66.6 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Cook as warming stripes, 1957 to 1997
Year	Annual mean temperature	Difference from the station mean
1957	18.3 C	-0.08 C
1958	17.6 C	-0.74 C
1959	18.5 C	+0.14 C
1960	17.6 C	-0.71 C
1961	19.0 C	+0.68 C
1962	18.5 C	+0.18 C
1963	19.0 C	+0.61 C
1964	18.0 C	-0.36 C
1965	19.1 C	+0.73 C
1966	17.9 C	-0.41 C
1967	18.2 C	-0.16 C
1969	18.2 C	-0.14 C
1970	18.1 C	-0.29 C
1971	18.3 C	-0.03 C
1972	18.8 C	+0.42 C
1973	18.7 C	+0.37 C
1974	18.0 C	-0.33 C
1976	17.7 C	-0.63 C
1977	18.8 C	+0.41 C
1978	18.1 C	-0.26 C
1979	18.7 C	+0.39 C
1980	19.2 C	+0.88 C
1981	18.8 C	+0.47 C
1982	19.0 C	+0.62 C
1983	18.6 C	+0.21 C
1984	17.7 C	-0.60 C
1985	18.3 C	-0.07 C
1986	17.8 C	-0.55 C
1987	17.8 C	-0.58 C
1988	18.0 C	-0.38 C
1990	18.2 C	-0.18 C
1991	18.4 C	+0.01 C
1993	18.4 C	+0.05 C
1995	18.0 C	-0.37 C
1996	18.4 C	+0.03 C
1997	18.9 C	+0.51 C

The fitted trend in annual mean temperature here over 1957 to 1997 is 0.00 C (-0.13 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.24 to 0.23) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cook
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.00 C (-0.13 to 0.13) per decade	0.00 F (-0.24 to 0.23) per decade	1957 to 1997	36	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.2 to 0.4) per decade	1957 to 1997	36	Not clearly different from zero
Mean daily minimum	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.4 to 0.2) per decade	1957 to 1997	36	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1918 to 2023

Yearly extremes at Cook: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.7 C (119.7 F)	1973	45.7 C (114.2 F)	42
Coldest night (TNn)	-4.5 C (23.9 F)	1976	-0.9 C (30.3 F)	42
Wettest day (Rx1day)	80.8 mm (3.2 in)	1983	25.4 mm (1.0 in)	103
Wettest five days (Rx5day)	130.7 mm (5.1 in)	1955	37.3 mm (1.5 in)	102
Longest dry spell (CDD)	129 days	1965	57 days	102

Hottest day (TXx)

The hottest day of the year at Cook, 1918 to 2023. The record is 48.7 C (119.7 F) in 1973, marked on the chart; the median year is 45.7 C (114.2 F).

Hottest day (TXx) at Cook by year
Year	Hottest day (TXx)
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	44.4 C (111.9 F)
1958	43.3 C (109.9 F)
1959	46.7 C (116.1 F)
1960	45.0 C (113.0 F)
1961	45.6 C (114.1 F)
1962	45.6 C (114.1 F)
1963	44.7 C (112.5 F)
1964	45.9 C (114.6 F)
1965	44.3 C (111.7 F)
1966	43.7 C (110.7 F)
1967	44.2 C (111.6 F)
1968	46.5 C (115.7 F)
1969	46.8 C (116.2 F)
1970	47.6 C (117.7 F)
1971	47.7 C (117.9 F)
1972	46.3 C (115.3 F)
1973	48.7 C (119.7 F)
1974	41.7 C (107.1 F)
1975	44.8 C (112.6 F)
1976	46.1 C (115.0 F)
1977	45.6 C (114.1 F)
1978	43.1 C (109.6 F)
1979	47.7 C (117.9 F)
1980	45.0 C (113.0 F)
1981	45.7 C (114.3 F)
1982	48.0 C (118.4 F)
1983	47.0 C (116.6 F)
1984	46.2 C (115.2 F)
1985	43.6 C (110.5 F)
1986	46.5 C (115.7 F)
1987	43.5 C (110.3 F)
1988	44.0 C (111.2 F)
1989	44.5 C (112.1 F)
1990	48.0 C (118.4 F)
1991	46.5 C (115.7 F)
1992	46.5 C (115.7 F)
1993	45.0 C (113.0 F)
1994	46.0 C (114.8 F)
1995	43.0 C (109.4 F)
1996	46.5 C (115.7 F)
1997	45.0 C (113.0 F)
1998	46.7 C (116.1 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Coldest night (TNn)

The coldest night of the year at Cook, 1918 to 2023. The record is -4.5 C (23.9 F) in 1976, marked on the chart; the median year is -0.9 C (30.3 F).

Coldest night (TNn) at Cook by year
Year	Coldest night (TNn)
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	-1.7 C (28.9 F)
1958	-1.7 C (28.9 F)
1959	-0.6 C (30.9 F)
1960	0.0 C (32.0 F)
1961	-2.2 C (28.0 F)
1962	0.4 C (32.7 F)
1963	-2.1 C (28.2 F)
1964	-1.3 C (29.7 F)
1965	-0.4 C (31.3 F)
1966	-0.6 C (30.9 F)
1967	-1.6 C (29.1 F)
1968	-1.2 C (29.8 F)
1969	-1.1 C (30.0 F)
1970	-2.2 C (28.0 F)
1971	-0.9 C (30.4 F)
1972	0.0 C (32.0 F)
1973	0.2 C (32.4 F)
1974	-0.8 C (30.6 F)
1975	-1.8 C (28.8 F)
1976	-4.5 C (23.9 F)
1977	0.0 C (32.0 F)
1978	-0.7 C (30.7 F)
1979	0.4 C (32.7 F)
1980	0.0 C (32.0 F)
1981	0.0 C (32.0 F)
1982	-1.5 C (29.3 F)
1983	-0.8 C (30.6 F)
1984	-3.3 C (26.1 F)
1985	-2.0 C (28.4 F)
1986	0.6 C (33.1 F)
1987	-3.8 C (25.2 F)
1988	-3.3 C (26.1 F)
1989	-1.0 C (30.2 F)
1990	-1.0 C (30.2 F)
1991	0.5 C (32.9 F)
1992	0.1 C (32.2 F)
1993	-0.2 C (31.6 F)
1994	-1.6 C (29.1 F)
1995	0.0 C (32.0 F)
1996	-1.5 C (29.3 F)
1997	-3.0 C (26.6 F)
1998	9.0 C (48.2 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Wettest day (Rx1day)

The wettest day of the year at Cook, 1918 to 2023. The record is 80.8 mm (3.2 in) in 1983, marked on the chart; the median year is 25.4 mm (1.0 in).

Wettest day (Rx1day) at Cook by year
Year	Wettest day (Rx1day)
1918	16.5 mm (0.6 in)
1919	25.9 mm (1.0 in)
1920	25.4 mm (1.0 in)
1921	12.7 mm (0.5 in)
1922	16.5 mm (0.6 in)
1923	31.8 mm (1.3 in)
1924	15.2 mm (0.6 in)
1925	28.2 mm (1.1 in)
1926	12.4 mm (0.5 in)
1927	13.7 mm (0.5 in)
1928	8.4 mm (0.33 in)
1929	20.1 mm (0.8 in)
1930	31.8 mm (1.3 in)
1931	59.4 mm (2.3 in)
1932	26.7 mm (1.1 in)
1933	30.2 mm (1.2 in)
1934	21.6 mm (0.9 in)
1935	20.8 mm (0.8 in)
1936	16.5 mm (0.6 in)
1937	25.4 mm (1.0 in)
1938	19.6 mm (0.8 in)
1939	27.4 mm (1.1 in)
1940	34.8 mm (1.4 in)
1941	24.6 mm (1.0 in)
1942	45.2 mm (1.8 in)
1943	21.8 mm (0.9 in)
1944	21.6 mm (0.9 in)
1945	27.9 mm (1.1 in)
1946	26.4 mm (1.0 in)
1947	78.0 mm (3.1 in)
1948	15.2 mm (0.6 in)
1949	16.3 mm (0.6 in)
1950	29.0 mm (1.1 in)
1951	23.4 mm (0.9 in)
1952	23.1 mm (0.9 in)
1953	27.2 mm (1.1 in)
1954	27.9 mm (1.1 in)
1955	54.4 mm (2.1 in)
1956	27.9 mm (1.1 in)
1957	24.1 mm (0.9 in)
1958	38.9 mm (1.5 in)
1959	25.4 mm (1.0 in)
1960	19.8 mm (0.8 in)
1961	16.0 mm (0.6 in)
1962	25.7 mm (1.0 in)
1963	10.7 mm (0.4 in)
1964	24.6 mm (1.0 in)
1965	35.1 mm (1.4 in)
1966	68.8 mm (2.7 in)
1967	46.0 mm (1.8 in)
1968	25.9 mm (1.0 in)
1969	26.7 mm (1.1 in)
1970	38.1 mm (1.5 in)
1971	36.1 mm (1.4 in)
1972	19.1 mm (0.8 in)
1973	48.8 mm (1.9 in)
1974	75.0 mm (3.0 in)
1975	45.6 mm (1.8 in)
1976	14.2 mm (0.6 in)
1977	18.8 mm (0.7 in)
1978	21.2 mm (0.8 in)
1979	24.6 mm (1.0 in)
1980	28.0 mm (1.1 in)
1981	23.8 mm (0.9 in)
1982	19.6 mm (0.8 in)
1983	80.8 mm (3.2 in)
1984	16.0 mm (0.6 in)
1985	20.6 mm (0.8 in)
1986	14.0 mm (0.6 in)
1987	33.8 mm (1.3 in)
1988	31.8 mm (1.3 in)
1989	25.8 mm (1.0 in)
1990	20.0 mm (0.8 in)
1991	41.0 mm (1.6 in)
1992	39.6 mm (1.6 in)
1993	24.0 mm (0.9 in)
1994	42.6 mm (1.7 in)
1995	68.0 mm (2.7 in)
1996	34.5 mm (1.4 in)
1997	24.8 mm (1.0 in)
1998	5.2 mm (0.20 in)
1999	23.0 mm (0.9 in)
2000	14.0 mm (0.6 in)
2001	47.0 mm (1.9 in)
2002	3.5 mm (0.14 in)
2003	41.0 mm (1.6 in)
2004	24.0 mm (0.9 in)
2005	21.0 mm (0.8 in)
2006	62.0 mm (2.4 in)
2007	28.6 mm (1.1 in)
2008	13.0 mm (0.5 in)
2009	30.0 mm (1.2 in)
2010	39.6 mm (1.6 in)
2011	51.4 mm (2.0 in)
2012	13.0 mm (0.5 in)
2013	20.4 mm (0.8 in)
2014	32.0 mm (1.3 in)
2018	21.0 mm (0.8 in)
2019	6.0 mm (0.24 in)
2020	40.8 mm (1.6 in)
2021	49.0 mm (1.9 in)
2022	19.0 mm (0.7 in)
2023	24.0 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cook, 1918 to 2023. The record is 130.7 mm (5.1 in) in 1955, marked on the chart; the median year is 37.3 mm (1.5 in).

Wettest five days (Rx5day) at Cook by year
Year	Wettest five days (Rx5day)
1918	23.9 mm (0.9 in)
1919	44.0 mm (1.7 in)
1920	40.4 mm (1.6 in)
1921	25.4 mm (1.0 in)
1922	20.3 mm (0.8 in)
1923	71.4 mm (2.8 in)
1924	15.2 mm (0.6 in)
1925	44.7 mm (1.8 in)
1926	26.4 mm (1.0 in)
1927	27.8 mm (1.1 in)
1928	10.2 mm (0.4 in)
1929	25.2 mm (1.0 in)
1930	55.2 mm (2.2 in)
1931	64.7 mm (2.5 in)
1932	49.1 mm (1.9 in)
1933	37.3 mm (1.5 in)
1934	31.0 mm (1.2 in)
1935	41.1 mm (1.6 in)
1936	17.3 mm (0.7 in)
1937	26.9 mm (1.1 in)
1938	25.7 mm (1.0 in)
1939	30.7 mm (1.2 in)
1940	47.5 mm (1.9 in)
1941	31.3 mm (1.2 in)
1942	48.5 mm (1.9 in)
1943	25.9 mm (1.0 in)
1944	24.4 mm (1.0 in)
1945	38.9 mm (1.5 in)
1946	38.3 mm (1.5 in)
1947	80.5 mm (3.2 in)
1948	22.8 mm (0.9 in)
1949	28.9 mm (1.1 in)
1950	49.8 mm (2.0 in)
1951	34.6 mm (1.4 in)
1952	24.4 mm (1.0 in)
1953	41.7 mm (1.6 in)
1954	34.6 mm (1.4 in)
1955	130.7 mm (5.1 in)
1956	45.0 mm (1.8 in)
1957	38.0 mm (1.5 in)
1958	63.0 mm (2.5 in)
1959	29.0 mm (1.1 in)
1960	34.6 mm (1.4 in)
1961	24.9 mm (1.0 in)
1962	65.6 mm (2.6 in)
1963	18.3 mm (0.7 in)
1964	50.0 mm (2.0 in)
1965	37.4 mm (1.5 in)
1966	92.1 mm (3.6 in)
1967	88.0 mm (3.5 in)
1968	38.6 mm (1.5 in)
1969	36.4 mm (1.4 in)
1970	63.8 mm (2.5 in)
1971	37.4 mm (1.5 in)
1972	43.2 mm (1.7 in)
1973	63.1 mm (2.5 in)
1974	85.6 mm (3.4 in)
1975	90.4 mm (3.6 in)
1976	19.6 mm (0.8 in)
1977	23.2 mm (0.9 in)
1978	26.4 mm (1.0 in)
1979	37.8 mm (1.5 in)
1980	40.5 mm (1.6 in)
1981	25.4 mm (1.0 in)
1982	23.2 mm (0.9 in)
1983	109.7 mm (4.3 in)
1984	26.6 mm (1.0 in)
1985	29.6 mm (1.2 in)
1986	24.2 mm (1.0 in)
1987	38.9 mm (1.5 in)
1988	60.3 mm (2.4 in)
1989	35.9 mm (1.4 in)
1990	35.7 mm (1.4 in)
1991	64.3 mm (2.5 in)
1992	49.8 mm (2.0 in)
1993	40.6 mm (1.6 in)
1994	60.8 mm (2.4 in)
1995	79.8 mm (3.1 in)
1996	39.7 mm (1.6 in)
1997	36.0 mm (1.4 in)
1998	5.4 mm (0.21 in)
1999	23.0 mm (0.9 in)
2000	18.0 mm (0.7 in)
2001	60.0 mm (2.4 in)
2002	7.8 mm (0.31 in)
2003	48.0 mm (1.9 in)
2004	38.4 mm (1.5 in)
2005	29.0 mm (1.1 in)
2006	85.6 mm (3.4 in)
2007	42.6 mm (1.7 in)
2008	30.8 mm (1.2 in)
2009	32.0 mm (1.3 in)
2010	83.4 mm (3.3 in)
2011	54.7 mm (2.2 in)
2012	13.2 mm (0.5 in)
2013	4.8 mm (0.19 in)
2014	n/a
2018	27.8 mm (1.1 in)
2019	10.3 mm (0.4 in)
2020	57.3 mm (2.3 in)
2021	61.0 mm (2.4 in)
2022	19.0 mm (0.7 in)
2023	25.4 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cook, 1918 to 2023. The record is 129 days in 1965, marked on the chart; the median year is 57 days.

Longest dry spell (CDD) at Cook by year
Year	Longest dry spell (CDD)
1918	49 days
1919	59 days
1920	63 days
1921	45 days
1922	93 days
1923	50 days
1924	42 days
1925	78 days
1926	98 days
1927	66 days
1928	66 days
1929	61 days
1930	49 days
1931	69 days
1932	43 days
1933	44 days
1934	72 days
1935	67 days
1936	83 days
1937	115 days
1938	83 days
1939	63 days
1940	44 days
1941	53 days
1942	62 days
1943	62 days
1944	78 days
1945	59 days
1946	57 days
1947	32 days
1948	70 days
1949	56 days
1950	54 days
1951	97 days
1952	56 days
1953	46 days
1954	67 days
1955	55 days
1956	83 days
1957	70 days
1958	35 days
1959	44 days
1960	39 days
1961	60 days
1962	48 days
1963	127 days
1964	51 days
1965	129 days
1966	46 days
1967	80 days
1968	50 days
1969	41 days
1970	67 days
1971	60 days
1972	71 days
1973	44 days
1974	24 days
1975	41 days
1976	45 days
1977	68 days
1978	47 days
1979	58 days
1980	71 days
1981	90 days
1982	91 days
1983	52 days
1984	67 days
1985	88 days
1986	48 days
1987	72 days
1988	71 days
1989	91 days
1990	57 days
1991	54 days
1992	34 days
1993	50 days
1994	62 days
1995	40 days
1996	58 days
1997	55 days
1998	29 days
1999	64 days
2000	36 days
2001	52 days
2002	33 days
2003	77 days
2004	35 days
2005	33 days
2006	45 days
2007	42 days
2008	70 days
2009	57 days
2010	40 days
2011	25 days
2012	60 days
2013	56 days
2014	n/a
2018	21 days
2019	105 days
2020	53 days
2021	43 days
2022	58 days
2023	27 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Cook falls on 11 August and the median first autumn frost on 3 July, which leaves a median of 331 days between them.

Frost dates and growing season at Cook
Measure	Median, all years	Earliest period	Recent period (1957 to 1996)	Recent against earliest	Fitted trend
Last spring frost	11 August	n/a	11 August	n/a	n/a
First autumn frost	3 July	n/a	3 July	n/a	n/a
Growing days	331 days	n/a	331 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

93 years, 1918 to 2022

A day with at least 26.0 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 89.9 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Cook: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	26.0 mm (1.0 in)
5 years	38.9 mm (1.5 in)
10 years	48.9 mm (1.9 in)
25 years	63.5 mm (2.5 in)
50 years	76.0 mm (3.0 in)
100 years	89.9 mm (3.5 in)	Longer than the 93 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 93 years of values from 1918 to 2022.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 80.8 mm (3.2 in) in 1983; 78.0 mm (3.1 in) in 1947; 75.0 mm (3.0 in) in 1974.

Download the Data

Data for Cook standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cook 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). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).