Collaroy Station Weather Records (ASN00033012)

Record envelope, standing records and threshold days for Collaroy Station (ASN00033012), Australia, with 132 years of record.

Key Facts for Collaroy Station

Collaroy Station (ASN00033012) is a weather station in Australia at -22.03 latitude and 149.19 longitude, 183 m (600 ft) above sea level.
The station reports from 1891 to 2022, 132 years of record.
0 records set at Collaroy Station still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Collaroy Station set a daily record precipitation of 20.0 mm (0.8 in) on 28 September 2022.

About the Station

Location: Australia, -22.03 latitude, 149.19 longitude.
Elevation: 183 m (600 ft).
Period of record: 1891 to 2022, 132 years.
Eligible elements: 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 Collaroy Station. 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 Collaroy Station, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Collaroy Station still stand.

Wettest Day of Each Month

Jan: 458.7 mm (18.1 in)

The wettest day on record for each calendar month at Collaroy Station. The most was 458.7 mm (18.1 in) on 23 January 1918.

Record daily precipitation for each month at Collaroy Station
Month	Record daily precipitation (mm)	Date
Jan	458.7 mm (18.1 in)	23 January 1918
Feb	261.4 mm (10.3 in)	17 February 1959
Mar	392.4 mm (15.4 in)	2 March 1988
Apr	104.6 mm (4.1 in)	18 April 1894
May	120.7 mm (4.8 in)	26 May 1955
Jun	96.8 mm (3.8 in)	19 June 1925
Jul	81.3 mm (3.2 in)	10 July 1933
Aug	166.2 mm (6.5 in)	30 August 1998
Sep	86.4 mm (3.4 in)	17 September 1931
Oct	65.0 mm (2.6 in)	30 October 2000
Nov	153.0 mm (6.0 in)	17 November 2000
Dec	324.9 mm (12.8 in)	28 December 1916

Latest Records

Latest records at Collaroy Station
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 2022	Collaroy Station, AU	daily rain	20.0 mm (0.8 in)	6.5 mm (0.26 in)	108 years	20 of 100 (Routine)
4 July 2022	Collaroy Station, AU	daily rain	44.5 mm (1.8 in)	23.7 mm (0.9 in)	84 years	54 of 100 (Notable)
3 July 2022	Collaroy Station, AU	daily rain	59.5 mm (2.3 in)	19.4 mm (0.8 in)	57 years	42 of 100 (Notable)
2 July 2022	Collaroy Station, AU	daily rain	46.5 mm (1.8 in)	33.3 mm (1.3 in)	57 years	54 of 100 (Notable)
27 March 2019	Collaroy Station, AU	daily rain	85.0 mm (3.3 in)	22.3 mm (0.9 in)	116 years	48 of 100 (Notable)
10 November 2006	Collaroy Station, AU	daily rain	38.4 mm (1.5 in)	3.4 mm (0.13 in)	7 years	14 of 100 (Routine)
13 August 2005	Collaroy Station, AU	daily rain	26.0 mm (1.0 in)	16.9 mm (0.7 in)	51 years	35 of 100 (Notable)
12 August 2005	Collaroy Station, AU	daily rain	27.0 mm (1.1 in)	6.2 mm (0.24 in)	42 years	25 of 100 (Routine)
12 May 2005	Collaroy Station, AU	daily rain	35.2 mm (1.4 in)	6.5 mm (0.26 in)	92 years	40 of 100 (Notable)
29 April 2004	Collaroy Station, AU	daily rain	18.2 mm (0.7 in)	0.9 mm (0.04 in)	99 years	20 of 100 (Routine)
22 November 2000	Collaroy Station, AU	daily rain	50.2 mm (2.0 in)	2.4 mm (0.09 in)	31 years	20 of 100 (Routine)
17 November 2000	Collaroy Station, AU	monthly rain	153.0 mm (6.0 in)	60.5 mm (2.4 in)	83 years	84 of 100 (Exceptional)
30 October 2000	Collaroy Station, AU	monthly rain	65.0 mm (2.6 in)	6.8 mm (0.27 in)	55 years	41 of 100 (Notable)
10 November 1999	Collaroy Station, AU	daily rain	35.0 mm (1.4 in)	6.8 mm (0.27 in)	65 years	33 of 100 (Routine)
24 July 1999	Collaroy Station, AU	daily rain	19.0 mm (0.7 in)	7.6 mm (0.30 in)	60 years	20 of 100 (Routine)
28 February 1999	Collaroy Station, AU	daily rain	67.6 mm (2.7 in)	15.5 mm (0.6 in)	92 years	43 of 100 (Notable)
11 February 1999	Collaroy Station, AU	daily rain	169.4 mm (6.7 in)	29.7 mm (1.2 in)	102 years	51 of 100 (Notable)
26 November 1998	Collaroy Station, AU	daily rain	47.0 mm (1.9 in)	26.0 mm (1.0 in)	9 years	31 of 100 (Routine)
1 November 1998	Collaroy Station, AU	daily rain	26.4 mm (1.0 in)	7.0 mm (0.28 in)	21 years	21 of 100 (Routine)
10 October 1998	Collaroy Station, AU	daily rain	42.0 mm (1.7 in)	19.1 mm (0.8 in)	48 years	40 of 100 (Notable)

Extremes by Year

1891 to 2022

Yearly extremes at Collaroy Station: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	458.7 mm (18.1 in)	1918	81.3 mm (3.2 in)	118
Wettest five days (Rx5day)	1,123.0 mm (44.2 in)	1918	153.8 mm (6.1 in)	118
Longest dry spell (CDD)	197 days	1946	58 days	118

Wettest day (Rx1day)

The wettest day of the year at Collaroy Station, 1891 to 2022. The record is 458.7 mm (18.1 in) in 1918, marked on the chart; the median year is 81.3 mm (3.2 in).

Wettest day (Rx1day) at Collaroy Station by year
Year	Wettest day (Rx1day)
1891	69.3 mm (2.7 in)
1892	51.3 mm (2.0 in)
1893	105.2 mm (4.1 in)
1894	111.0 mm (4.4 in)
1895	110.2 mm (4.3 in)
1896	362.0 mm (14.3 in)
1897	66.0 mm (2.6 in)
1898	185.4 mm (7.3 in)
1899	84.1 mm (3.3 in)
1900	47.5 mm (1.9 in)
1901	45.7 mm (1.8 in)
1902	54.6 mm (2.1 in)
1903	98.8 mm (3.9 in)
1904	66.8 mm (2.6 in)
1905	178.6 mm (7.0 in)
1906	78.0 mm (3.1 in)
1907	70.9 mm (2.8 in)
1908	158.2 mm (6.2 in)
1909	88.9 mm (3.5 in)
1910	260.4 mm (10.3 in)
1911	189.5 mm (7.5 in)
1912	49.8 mm (2.0 in)
1913	127.5 mm (5.0 in)
1914	124.2 mm (4.9 in)
1915	84.6 mm (3.3 in)
1916	324.9 mm (12.8 in)
1917	92.5 mm (3.6 in)
1918	458.7 mm (18.1 in)
1919	34.8 mm (1.4 in)
1920	77.0 mm (3.0 in)
1921	75.2 mm (3.0 in)
1922	132.1 mm (5.2 in)
1923	70.4 mm (2.8 in)
1924	76.5 mm (3.0 in)
1925	96.8 mm (3.8 in)
1926	44.2 mm (1.7 in)
1927	161.0 mm (6.3 in)
1928	55.1 mm (2.2 in)
1929	95.3 mm (3.8 in)
1930	65.8 mm (2.6 in)
1931	86.4 mm (3.4 in)
1932	66.0 mm (2.6 in)
1933	81.3 mm (3.2 in)
1934	69.3 mm (2.7 in)
1935	51.1 mm (2.0 in)
1936	75.7 mm (3.0 in)
1937	59.9 mm (2.4 in)
1938	70.4 mm (2.8 in)
1939	53.6 mm (2.1 in)
1940	158.8 mm (6.3 in)
1941	82.8 mm (3.3 in)
1942	65.5 mm (2.6 in)
1943	65.3 mm (2.6 in)
1944	79.2 mm (3.1 in)
1945	58.2 mm (2.3 in)
1946	58.4 mm (2.3 in)
1947	119.6 mm (4.7 in)
1948	57.4 mm (2.3 in)
1949	112.3 mm (4.4 in)
1950	141.2 mm (5.6 in)
1951	172.2 mm (6.8 in)
1952	70.6 mm (2.8 in)
1953	49.5 mm (1.9 in)
1954	161.3 mm (6.4 in)
1955	128.3 mm (5.1 in)
1956	84.8 mm (3.3 in)
1957	69.3 mm (2.7 in)
1958	96.5 mm (3.8 in)
1959	261.4 mm (10.3 in)
1960	99.1 mm (3.9 in)
1961	66.3 mm (2.6 in)
1962	48.3 mm (1.9 in)
1963	56.4 mm (2.2 in)
1964	88.4 mm (3.5 in)
1965	44.5 mm (1.8 in)
1966	54.9 mm (2.2 in)
1967	68.1 mm (2.7 in)
1968	152.9 mm (6.0 in)
1969	47.8 mm (1.9 in)
1970	81.3 mm (3.2 in)
1971	139.7 mm (5.5 in)
1972	70.9 mm (2.8 in)
1973	100.8 mm (4.0 in)
1974	85.8 mm (3.4 in)
1975	56.4 mm (2.2 in)
1976	142.0 mm (5.6 in)
1977	132.4 mm (5.2 in)
1978	108.0 mm (4.3 in)
1979	98.6 mm (3.9 in)
1980	79.4 mm (3.1 in)
1981	78.0 mm (3.1 in)
1982	224.0 mm (8.8 in)
1983	99.0 mm (3.9 in)
1984	55.4 mm (2.2 in)
1985	55.0 mm (2.2 in)
1986	66.0 mm (2.6 in)
1987	37.4 mm (1.5 in)
1988	392.4 mm (15.4 in)
1989	86.0 mm (3.4 in)
1990	192.4 mm (7.6 in)
1991	229.2 mm (9.0 in)
1992	28.6 mm (1.1 in)
1993	112.0 mm (4.4 in)
1994	73.8 mm (2.9 in)
1995	55.0 mm (2.2 in)
1996	69.6 mm (2.7 in)
1997	87.6 mm (3.4 in)
1998	166.2 mm (6.5 in)
1999	169.4 mm (6.7 in)
2000	153.0 mm (6.0 in)
2001	91.0 mm (3.6 in)
2002	123.8 mm (4.9 in)
2003	48.2 mm (1.9 in)
2004	34.6 mm (1.4 in)
2005	41.6 mm (1.6 in)
2006	38.8 mm (1.5 in)
2019	110.0 mm (4.3 in)
2022	59.5 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Collaroy Station, 1891 to 2022. The record is 1,123.0 mm (44.2 in) in 1918, marked on the chart; the median year is 153.8 mm (6.1 in).

Wettest five days (Rx5day) at Collaroy Station by year
Year	Wettest five days (Rx5day)
1891	108.6 mm (4.3 in)
1892	85.7 mm (3.4 in)
1893	203.8 mm (8.0 in)
1894	148.3 mm (5.8 in)
1895	254.9 mm (10.0 in)
1896	509.3 mm (20.1 in)
1897	136.4 mm (5.4 in)
1898	461.0 mm (18.1 in)
1899	126.0 mm (5.0 in)
1900	112.2 mm (4.4 in)
1901	63.7 mm (2.5 in)
1902	54.6 mm (2.1 in)
1903	153.2 mm (6.0 in)
1904	139.0 mm (5.5 in)
1905	268.3 mm (10.6 in)
1906	277.0 mm (10.9 in)
1907	109.0 mm (4.3 in)
1908	171.2 mm (6.7 in)
1909	264.7 mm (10.4 in)
1910	425.8 mm (16.8 in)
1911	232.4 mm (9.1 in)
1912	77.4 mm (3.0 in)
1913	340.7 mm (13.4 in)
1914	229.9 mm (9.1 in)
1915	133.8 mm (5.3 in)
1916	433.8 mm (17.1 in)
1917	361.2 mm (14.2 in)
1918	1,123.0 mm (44.2 in)
1919	44.5 mm (1.8 in)
1920	159.9 mm (6.3 in)
1921	175.5 mm (6.9 in)
1922	256.1 mm (10.1 in)
1923	86.1 mm (3.4 in)
1924	149.4 mm (5.9 in)
1925	120.4 mm (4.7 in)
1926	104.0 mm (4.1 in)
1927	257.2 mm (10.1 in)
1928	165.9 mm (6.5 in)
1929	133.1 mm (5.2 in)
1930	106.5 mm (4.2 in)
1931	125.6 mm (4.9 in)
1932	126.4 mm (5.0 in)
1933	154.4 mm (6.1 in)
1934	116.3 mm (4.6 in)
1935	63.5 mm (2.5 in)
1936	98.5 mm (3.9 in)
1937	119.6 mm (4.7 in)
1938	113.1 mm (4.5 in)
1939	66.8 mm (2.6 in)
1940	249.2 mm (9.8 in)
1941	121.7 mm (4.8 in)
1942	106.6 mm (4.2 in)
1943	212.0 mm (8.3 in)
1944	148.0 mm (5.8 in)
1945	90.9 mm (3.6 in)
1946	99.6 mm (3.9 in)
1947	226.3 mm (8.9 in)
1948	169.7 mm (6.7 in)
1949	176.3 mm (6.9 in)
1950	248.3 mm (9.8 in)
1951	600.4 mm (23.6 in)
1952	85.3 mm (3.4 in)
1953	149.8 mm (5.9 in)
1954	274.5 mm (10.8 in)
1955	243.8 mm (9.6 in)
1956	193.0 mm (7.6 in)
1957	123.2 mm (4.9 in)
1958	307.1 mm (12.1 in)
1959	287.3 mm (11.3 in)
1960	261.4 mm (10.3 in)
1961	116.5 mm (4.6 in)
1962	70.1 mm (2.8 in)
1963	156.0 mm (6.1 in)
1964	101.1 mm (4.0 in)
1965	83.9 mm (3.3 in)
1966	99.5 mm (3.9 in)
1967	113.6 mm (4.5 in)
1968	331.7 mm (13.1 in)
1969	57.4 mm (2.3 in)
1970	136.3 mm (5.4 in)
1971	230.7 mm (9.1 in)
1972	83.3 mm (3.3 in)
1973	213.5 mm (8.4 in)
1974	224.8 mm (8.9 in)
1975	127.4 mm (5.0 in)
1976	378.0 mm (14.9 in)
1977	174.4 mm (6.9 in)
1978	406.2 mm (16.0 in)
1979	159.6 mm (6.3 in)
1980	100.4 mm (4.0 in)
1981	116.0 mm (4.6 in)
1982	232.6 mm (9.2 in)
1983	147.2 mm (5.8 in)
1984	87.6 mm (3.4 in)
1985	57.0 mm (2.2 in)
1986	83.4 mm (3.3 in)
1987	50.2 mm (2.0 in)
1988	708.6 mm (27.9 in)
1989	218.0 mm (8.6 in)
1990	623.6 mm (24.6 in)
1991	600.8 mm (23.7 in)
1992	46.8 mm (1.8 in)
1993	223.0 mm (8.8 in)
1994	181.8 mm (7.2 in)
1995	84.4 mm (3.3 in)
1996	157.2 mm (6.2 in)
1997	156.6 mm (6.2 in)
1998	263.2 mm (10.4 in)
1999	192.5 mm (7.6 in)
2000	239.8 mm (9.4 in)
2001	170.5 mm (6.7 in)
2002	164.8 mm (6.5 in)
2003	81.2 mm (3.2 in)
2004	55.2 mm (2.2 in)
2005	90.6 mm (3.6 in)
2006	58.2 mm (2.3 in)
2019	250.0 mm (9.8 in)
2022	193.0 mm (7.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Collaroy Station, 1891 to 2022. The record is 197 days in 1946, marked on the chart; the median year is 58 days.

Longest dry spell (CDD) at Collaroy Station by year
Year	Longest dry spell (CDD)
1891	58 days
1892	36 days
1893	29 days
1894	50 days
1895	46 days
1896	68 days
1897	82 days
1898	57 days
1899	41 days
1900	51 days
1901	49 days
1902	178 days
1903	24 days
1904	110 days
1905	89 days
1906	57 days
1907	49 days
1908	58 days
1909	27 days
1910	57 days
1911	97 days
1912	58 days
1913	64 days
1914	35 days
1915	134 days
1916	20 days
1917	40 days
1918	52 days
1919	61 days
1920	28 days
1921	44 days
1922	41 days
1923	72 days
1924	27 days
1925	49 days
1926	78 days
1927	48 days
1928	115 days
1929	117 days
1930	63 days
1931	41 days
1932	95 days
1933	42 days
1934	75 days
1935	36 days
1936	67 days
1937	51 days
1938	49 days
1939	77 days
1940	54 days
1941	114 days
1942	35 days
1943	82 days
1944	65 days
1945	38 days
1946	197 days
1947	47 days
1948	80 days
1949	63 days
1950	29 days
1951	66 days
1952	36 days
1953	56 days
1954	30 days
1955	40 days
1956	25 days
1957	35 days
1958	84 days
1959	64 days
1960	97 days
1961	62 days
1962	33 days
1963	74 days
1964	51 days
1965	71 days
1966	40 days
1967	52 days
1968	43 days
1969	84 days
1970	48 days
1971	28 days
1972	58 days
1973	48 days
1974	93 days
1975	51 days
1976	53 days
1977	131 days
1978	65 days
1979	96 days
1980	144 days
1981	164 days
1982	84 days
1983	52 days
1984	65 days
1985	88 days
1986	46 days
1987	57 days
1988	84 days
1989	108 days
1990	174 days
1991	113 days
1992	74 days
1993	59 days
1994	88 days
1995	74 days
1996	62 days
1997	117 days
1998	44 days
1999	58 days
2000	79 days
2001	63 days
2002	76 days
2003	74 days
2004	69 days
2005	50 days
2006	62 days
2019	62 days
2022	39 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.

Rainfall Return Levels

114 years, 1892 to 2019

A day with at least 83.6 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 417.5 mm (16.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Collaroy Station: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	83.6 mm (3.3 in)
5 years	133.7 mm (5.3 in)
10 years	178.7 mm (7.0 in)
25 years	253.9 mm (10.0 in)
50 years	326.7 mm (12.9 in)
100 years	417.5 mm (16.4 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 114 years of values from 1892 to 2019.

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: 458.7 mm (18.1 in) in 1918; 392.4 mm (15.4 in) in 1988; 362.0 mm (14.3 in) in 1896.

Download the Data

Data for Collaroy Station standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Collaroy Station 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a