Coolac (Hopewood) Weather Records (ASN00073006)

Record envelope, standing records and threshold days for Coolac (Hopewood) (ASN00073006), Australia, with 61 years of record.

Key Facts for Coolac (Hopewood)

Coolac (Hopewood) (ASN00073006) is a weather station in Australia at -34.87 latitude and 148.35 longitude, 259 m (850 ft) above sea level.
The station reports from 1909 to 1969, 61 years of record.
0 records set at Coolac (Hopewood) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Coolac (Hopewood) set a daily record precipitation of 19.1 mm (0.8 in) on 28 August 1969.

About the Station

Location: Australia, -34.87 latitude, 148.35 longitude.
Elevation: 259 m (850 ft).
Period of record: 1909 to 1969, 61 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 Coolac (Hopewood). 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 Coolac (Hopewood), 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 Coolac (Hopewood) still stand.

Wettest Day of Each Month

May: 106.2 mm (4.2 in)

The wettest day on record for each calendar month at Coolac (Hopewood). The most was 106.2 mm (4.2 in) on 27 May 1925.

Record daily precipitation for each month at Coolac (Hopewood)
Month	Record daily precipitation (mm)	Date
Jan	90.2 mm (3.6 in)	19 January 1950
Feb	83.8 mm (3.3 in)	20 February 1915
Mar	54.6 mm (2.1 in)	12 March 1949
Apr	64.5 mm (2.5 in)	16 April 1969
May	106.2 mm (4.2 in)	27 May 1925
Jun	77.5 mm (3.1 in)	24 June 1936
Jul	77.7 mm (3.1 in)	13 July 1933
Aug	52.1 mm (2.1 in)	27 August 1916
Sep	58.9 mm (2.3 in)	20 September 1915
Oct	65.3 mm (2.6 in)	21 October 1959
Nov	83.8 mm (3.3 in)	19 November 1912
Dec	84.8 mm (3.3 in)	28 December 1929

Latest Records

Latest records at Coolac (Hopewood)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 1969	Coolac (Hopewood), AU	daily rain	19.1 mm (0.8 in)	6.1 mm (0.24 in)	31 years	20 of 100 (Routine)
13 August 1969	Coolac (Hopewood), AU	daily rain	27.2 mm (1.1 in)	1.8 mm (0.07 in)	60 years	26 of 100 (Routine)
20 June 1969	Coolac (Hopewood), AU	daily rain	37.8 mm (1.5 in)	2.2 mm (0.09 in)	27 years	16 of 100 (Routine)
6 June 1969	Coolac (Hopewood), AU	daily rain	10.9 mm (0.4 in)	0.7 mm (0.03 in)	58 years	20 of 100 (Routine)
16 April 1969	Coolac (Hopewood), AU	monthly rain	64.5 mm (2.5 in)	12.4 mm (0.5 in)	19 years	32 of 100 (Routine)
28 March 1969	Coolac (Hopewood), AU	daily rain	8.9 mm (0.35 in)	5.1 mm (0.20 in)	56 years	20 of 100 (Routine)
26 December 1968	Coolac (Hopewood), AU	daily rain	26.7 mm (1.1 in)	16.0 mm (0.6 in)	47 years	34 of 100 (Routine)
24 December 1968	Coolac (Hopewood), AU	daily rain	29.2 mm (1.1 in)	16.8 mm (0.7 in)	55 years	37 of 100 (Notable)
7 November 1968	Coolac (Hopewood), AU	daily rain	25.4 mm (1.0 in)	6.3 mm (0.25 in)	31 years	20 of 100 (Routine)
29 May 1968	Coolac (Hopewood), AU	daily rain	19.8 mm (0.8 in)	0.2 mm (0.01 in)	37 years	17 of 100 (Routine)
11 May 1968	Coolac (Hopewood), AU	daily rain	74.2 mm (2.9 in)	9.4 mm (0.37 in)	43 years	27 of 100 (Routine)
14 October 1967	Coolac (Hopewood), AU	daily rain	20.3 mm (0.8 in)	10.6 mm (0.4 in)	0 years	16 of 100 (Routine)
3 March 1967	Coolac (Hopewood), AU	daily rain	21.3 mm (0.8 in)	3.5 mm (0.14 in)	12 years	10 of 100 (Routine)
14 December 1966	Coolac (Hopewood), AU	daily rain	19.1 mm (0.8 in)	0.6 mm (0.02 in)	19 years	10 of 100 (Routine)
5 December 1966	Coolac (Hopewood), AU	daily rain	24.9 mm (1.0 in)	19.8 mm (0.8 in)	4 years	20 of 100 (Routine)
10 November 1966	Coolac (Hopewood), AU	daily rain	36.3 mm (1.4 in)	21.1 mm (0.8 in)	20 years	30 of 100 (Routine)
20 October 1966	Coolac (Hopewood), AU	daily rain	12.7 mm (0.5 in)	5.1 mm (0.20 in)	4 years	11 of 100 (Routine)
14 October 1966	Coolac (Hopewood), AU	daily rain	9.7 mm (0.38 in)	0.8 mm (0.03 in)	51 years	20 of 100 (Routine)
10 August 1966	Coolac (Hopewood), AU	daily rain	22.9 mm (0.9 in)	1.3 mm (0.05 in)	24 years	13 of 100 (Routine)
1 July 1966	Coolac (Hopewood), AU	daily rain	28.7 mm (1.1 in)	1.3 mm (0.05 in)	45 years	19 of 100 (Routine)

Extremes by Year

1909 to 1969

Yearly extremes at Coolac (Hopewood): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	106.2 mm (4.2 in)	1925	49.8 mm (2.0 in)	59
Wettest five days (Rx5day)	166.0 mm (6.5 in)	1950	84.3 mm (3.3 in)	59
Longest dry spell (CDD)	72 days	1967	31 days	59

Wettest day (Rx1day)

The wettest day of the year at Coolac (Hopewood), 1909 to 1969. The record is 106.2 mm (4.2 in) in 1925, marked on the chart; the median year is 49.8 mm (2.0 in).

Wettest day (Rx1day) at Coolac (Hopewood) by year
Year	Wettest day (Rx1day)
1909	47.2 mm (1.9 in)
1910	46.7 mm (1.8 in)
1911	53.3 mm (2.1 in)
1912	83.8 mm (3.3 in)
1913	34.0 mm (1.3 in)
1914	29.2 mm (1.1 in)
1915	83.8 mm (3.3 in)
1916	52.6 mm (2.1 in)
1917	42.2 mm (1.7 in)
1918	59.7 mm (2.4 in)
1919	45.7 mm (1.8 in)
1920	49.5 mm (1.9 in)
1921	39.6 mm (1.6 in)
1922	49.3 mm (1.9 in)
1923	64.8 mm (2.6 in)
1924	47.5 mm (1.9 in)
1925	106.2 mm (4.2 in)
1926	34.0 mm (1.3 in)
1927	49.5 mm (1.9 in)
1928	36.8 mm (1.4 in)
1929	84.8 mm (3.3 in)
1930	39.6 mm (1.6 in)
1931	49.8 mm (2.0 in)
1932	54.1 mm (2.1 in)
1933	77.7 mm (3.1 in)
1934	59.7 mm (2.4 in)
1935	43.4 mm (1.7 in)
1936	77.5 mm (3.1 in)
1937	44.5 mm (1.8 in)
1938	39.1 mm (1.5 in)
1939	50.8 mm (2.0 in)
1940	44.5 mm (1.8 in)
1941	53.8 mm (2.1 in)
1942	35.6 mm (1.4 in)
1943	51.1 mm (2.0 in)
1944	18.8 mm (0.7 in)
1945	30.0 mm (1.2 in)
1946	80.0 mm (3.1 in)
1947	49.0 mm (1.9 in)
1948	53.3 mm (2.1 in)
1949	54.6 mm (2.1 in)
1950	90.2 mm (3.6 in)
1953	51.3 mm (2.0 in)
1954	55.9 mm (2.2 in)
1955	50.8 mm (2.0 in)
1956	59.2 mm (2.3 in)
1957	34.8 mm (1.4 in)
1958	61.0 mm (2.4 in)
1959	65.3 mm (2.6 in)
1960	50.0 mm (2.0 in)
1961	46.2 mm (1.8 in)
1962	39.6 mm (1.6 in)
1963	29.2 mm (1.1 in)
1964	50.8 mm (2.0 in)
1965	27.9 mm (1.1 in)
1966	38.1 mm (1.5 in)
1967	24.4 mm (1.0 in)
1968	74.2 mm (2.9 in)
1969	64.5 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coolac (Hopewood), 1909 to 1969. The record is 166.0 mm (6.5 in) in 1950, marked on the chart; the median year is 84.3 mm (3.3 in).

Wettest five days (Rx5day) at Coolac (Hopewood) by year
Year	Wettest five days (Rx5day)
1909	73.7 mm (2.9 in)
1910	86.6 mm (3.4 in)
1911	82.5 mm (3.2 in)
1912	86.8 mm (3.4 in)
1913	87.1 mm (3.4 in)
1914	37.4 mm (1.5 in)
1915	85.1 mm (3.4 in)
1916	74.4 mm (2.9 in)
1917	94.3 mm (3.7 in)
1918	74.4 mm (2.9 in)
1919	56.6 mm (2.2 in)
1920	107.2 mm (4.2 in)
1921	68.6 mm (2.7 in)
1922	86.6 mm (3.4 in)
1923	87.2 mm (3.4 in)
1924	94.5 mm (3.7 in)
1925	130.3 mm (5.1 in)
1926	55.6 mm (2.2 in)
1927	73.4 mm (2.9 in)
1928	100.1 mm (3.9 in)
1929	95.0 mm (3.7 in)
1930	84.8 mm (3.3 in)
1931	75.2 mm (3.0 in)
1932	90.2 mm (3.6 in)
1933	100.5 mm (4.0 in)
1934	88.6 mm (3.5 in)
1935	92.7 mm (3.6 in)
1936	90.2 mm (3.6 in)
1937	62.8 mm (2.5 in)
1938	46.5 mm (1.8 in)
1939	102.1 mm (4.0 in)
1940	58.9 mm (2.3 in)
1941	112.3 mm (4.4 in)
1942	58.4 mm (2.3 in)
1943	74.2 mm (2.9 in)
1944	30.7 mm (1.2 in)
1945	62.1 mm (2.4 in)
1946	80.0 mm (3.1 in)
1947	62.0 mm (2.4 in)
1948	88.6 mm (3.5 in)
1949	86.6 mm (3.4 in)
1950	166.0 mm (6.5 in)
1953	59.5 mm (2.3 in)
1954	108.0 mm (4.3 in)
1955	67.4 mm (2.7 in)
1956	102.8 mm (4.0 in)
1957	42.1 mm (1.7 in)
1958	134.6 mm (5.3 in)
1959	88.4 mm (3.5 in)
1960	56.4 mm (2.2 in)
1961	84.3 mm (3.3 in)
1962	63.5 mm (2.5 in)
1963	70.4 mm (2.8 in)
1964	50.8 mm (2.0 in)
1965	44.2 mm (1.7 in)
1966	68.8 mm (2.7 in)
1967	44.5 mm (1.8 in)
1968	98.3 mm (3.9 in)
1969	88.6 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coolac (Hopewood), 1909 to 1969. The record is 72 days in 1967, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Coolac (Hopewood) by year
Year	Longest dry spell (CDD)
1909	26 days
1910	33 days
1911	29 days
1912	38 days
1913	40 days
1914	37 days
1915	42 days
1916	28 days
1917	20 days
1918	31 days
1919	40 days
1920	32 days
1921	28 days
1922	35 days
1923	45 days
1924	28 days
1925	20 days
1926	64 days
1927	28 days
1928	57 days
1929	34 days
1930	22 days
1931	14 days
1932	36 days
1933	32 days
1934	39 days
1935	27 days
1936	28 days
1937	41 days
1938	30 days
1939	21 days
1940	45 days
1941	25 days
1942	34 days
1943	29 days
1944	27 days
1945	30 days
1946	29 days
1947	27 days
1948	49 days
1949	20 days
1950	43 days
1953	31 days
1954	50 days
1955	26 days
1956	28 days
1957	64 days
1958	57 days
1959	24 days
1960	34 days
1961	29 days
1962	24 days
1963	21 days
1964	32 days
1965	64 days
1966	17 days
1967	72 days
1968	61 days
1969	24 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

58 years, 1909 to 1969

A day with at least 48.8 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 101.4 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Coolac (Hopewood): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.8 mm (1.9 in)
5 years	63.8 mm (2.5 in)
10 years	73.3 mm (2.9 in)
25 years	85.0 mm (3.3 in)
50 years	93.3 mm (3.7 in)
100 years	101.4 mm (4.0 in)	Longer than the 58 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, 58 years of values from 1909 to 1969.

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: 106.2 mm (4.2 in) in 1925; 84.8 mm (3.3 in) in 1929; 83.8 mm (3.3 in) in 1912.

Download the Data

Data for Coolac (Hopewood) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Coolac (Hopewood) 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