Bookaloo Weather Records (ASN00016002)

Record envelope, standing records and threshold days for Bookaloo (ASN00016002), Australia, with 88 years of record.

Key Facts for Bookaloo

Bookaloo (ASN00016002) is a weather station in Australia at -31.90 latitude and 137.35 longitude, 87 m (285 ft) above sea level.
The station reports from 1897 to 1984, 88 years of record.
0 records set at Bookaloo still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Bookaloo set a daily record precipitation of 5.0 mm (0.20 in) on 25 November 1983.

About the Station

Location: Australia, -31.90 latitude, 137.35 longitude.
Elevation: 87 m (285 ft).
Period of record: 1897 to 1984, 88 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 Bookaloo. 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 Bookaloo, 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 Bookaloo still stand.

Wettest Day of Each Month

Mar: 129.8 mm (5.1 in)

The wettest day on record for each calendar month at Bookaloo. The most was 129.8 mm (5.1 in) on 1 March 1921.

Record daily precipitation for each month at Bookaloo
Month	Record daily precipitation (mm)	Date
Jan	62.7 mm (2.5 in)	8 January 1936
Feb	122.0 mm (4.8 in)	18 February 1974
Mar	129.8 mm (5.1 in)	1 March 1921
Apr	45.2 mm (1.8 in)	7 April 1921
May	59.0 mm (2.3 in)	2 May 1979
Jun	50.8 mm (2.0 in)	8 June 1971
Jul	27.2 mm (1.1 in)	3 July 1930
Aug	39.9 mm (1.6 in)	15 August 1958
Sep	50.0 mm (2.0 in)	19 September 1915
Oct	51.8 mm (2.0 in)	23 October 1938
Nov	77.6 mm (3.1 in)	27 November 1977
Dec	42.9 mm (1.7 in)	25 December 1929

Latest Records

Latest records at Bookaloo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 November 1983	Bookaloo, AU	daily rain	5.0 mm (0.20 in)	1.2 mm (0.05 in)	80 years	20 of 100 (Routine)
9 September 1983	Bookaloo, AU	daily rain	9.5 mm (0.37 in)	1.9 mm (0.07 in)	77 years	20 of 100 (Routine)
1 May 1983	Bookaloo, AU	daily rain	8.0 mm (0.31 in)	2.4 mm (0.09 in)	33 years	20 of 100 (Routine)
11 February 1983	Bookaloo, AU	daily rain	4.8 mm (0.19 in)	2.8 mm (0.11 in)	23 years	15 of 100 (Routine)
11 December 1981	Bookaloo, AU	daily rain	2.6 mm (0.10 in)	1.3 mm (0.05 in)	64 years	20 of 100 (Routine)
28 July 1981	Bookaloo, AU	daily rain	9.8 mm (0.39 in)	4.7 mm (0.19 in)	23 years	20 of 100 (Routine)
20 July 1981	Bookaloo, AU	daily rain	26.0 mm (1.0 in)	23.5 mm (0.9 in)	76 years	71 of 100 (Major)
27 January 1981	Bookaloo, AU	daily rain	31.0 mm (1.2 in)	22.9 mm (0.9 in)	27 years	35 of 100 (Notable)
13 July 1980	Bookaloo, AU	daily rain	8.8 mm (0.35 in)	3.7 mm (0.15 in)	15 years	19 of 100 (Routine)
30 May 1980	Bookaloo, AU	daily rain	17.6 mm (0.7 in)	3.1 mm (0.12 in)	30 years	20 of 100 (Routine)
22 April 1980	Bookaloo, AU	daily rain	18.0 mm (0.7 in)	12.4 mm (0.5 in)	34 years	20 of 100 (Routine)
21 April 1980	Bookaloo, AU	daily rain	20.0 mm (0.8 in)	0.2 mm (0.01 in)	77 years	20 of 100 (Routine)
30 December 1979	Bookaloo, AU	daily rain	26.0 mm (1.0 in)	23.0 mm (0.9 in)	45 years	50 of 100 (Notable)
14 November 1979	Bookaloo, AU	daily rain	24.0 mm (0.9 in)	18.9 mm (0.7 in)	8 years	20 of 100 (Routine)
26 September 1979	Bookaloo, AU	daily rain	18.2 mm (0.7 in)	0.4 mm (0.02 in)	14 years	12 of 100 (Routine)
17 August 1979	Bookaloo, AU	daily rain	6.6 mm (0.26 in)	0.4 mm (0.02 in)	0 years	8 of 100 (Routine)
2 May 1979	Bookaloo, AU	monthly rain	59.0 mm (2.3 in)	15.8 mm (0.6 in)	22 years	44 of 100 (Notable)
21 February 1979	Bookaloo, AU	daily rain	31.0 mm (1.2 in)	23.2 mm (0.9 in)	4 years	19 of 100 (Routine)
20 January 1979	Bookaloo, AU	daily rain	13.2 mm (0.5 in)	5.6 mm (0.22 in)	61 years	20 of 100 (Routine)
9 November 1978	Bookaloo, AU	daily rain	8.4 mm (0.33 in)	1.3 mm (0.05 in)	5 years	10 of 100 (Routine)

Extremes by Year

1897 to 1984

Yearly extremes at Bookaloo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	129.8 mm (5.1 in)	1921	27.4 mm (1.1 in)	87
Wettest five days (Rx5day)	265.4 mm (10.4 in)	1921	36.1 mm (1.4 in)	87
Longest dry spell (CDD)	130 days	1977	58 days	87

Wettest day (Rx1day)

The wettest day of the year at Bookaloo, 1897 to 1984. The record is 129.8 mm (5.1 in) in 1921, marked on the chart; the median year is 27.4 mm (1.1 in).

Wettest day (Rx1day) at Bookaloo by year
Year	Wettest day (Rx1day)
1897	4.8 mm (0.19 in)
1898	45.7 mm (1.8 in)
1899	40.4 mm (1.6 in)
1900	14.2 mm (0.6 in)
1901	12.2 mm (0.5 in)
1902	9.1 mm (0.36 in)
1903	29.0 mm (1.1 in)
1904	21.1 mm (0.8 in)
1905	13.0 mm (0.5 in)
1906	39.9 mm (1.6 in)
1907	16.8 mm (0.7 in)
1909	0.0 mm (0.00 in)
1910	37.6 mm (1.5 in)
1911	36.8 mm (1.4 in)
1912	25.1 mm (1.0 in)
1913	18.8 mm (0.7 in)
1914	21.1 mm (0.8 in)
1915	50.0 mm (2.0 in)
1916	26.9 mm (1.1 in)
1917	24.1 mm (0.9 in)
1918	43.4 mm (1.7 in)
1919	19.8 mm (0.8 in)
1920	49.5 mm (1.9 in)
1921	129.8 mm (5.1 in)
1922	34.0 mm (1.3 in)
1923	17.8 mm (0.7 in)
1924	38.4 mm (1.5 in)
1925	16.8 mm (0.7 in)
1926	19.8 mm (0.8 in)
1927	19.1 mm (0.8 in)
1928	7.4 mm (0.29 in)
1929	42.9 mm (1.7 in)
1930	27.2 mm (1.1 in)
1931	109.2 mm (4.3 in)
1932	19.1 mm (0.8 in)
1933	27.9 mm (1.1 in)
1934	18.3 mm (0.7 in)
1935	22.9 mm (0.9 in)
1936	62.7 mm (2.5 in)
1937	58.2 mm (2.3 in)
1938	92.2 mm (3.6 in)
1939	38.6 mm (1.5 in)
1940	18.5 mm (0.7 in)
1941	34.3 mm (1.4 in)
1942	12.7 mm (0.5 in)
1943	31.8 mm (1.3 in)
1944	29.2 mm (1.1 in)
1945	29.7 mm (1.2 in)
1946	121.9 mm (4.8 in)
1947	28.4 mm (1.1 in)
1948	15.5 mm (0.6 in)
1949	44.5 mm (1.8 in)
1950	30.5 mm (1.2 in)
1951	32.3 mm (1.3 in)
1952	24.4 mm (1.0 in)
1953	11.4 mm (0.4 in)
1954	36.3 mm (1.4 in)
1955	30.5 mm (1.2 in)
1956	43.2 mm (1.7 in)
1957	5.6 mm (0.22 in)
1958	39.9 mm (1.6 in)
1959	21.1 mm (0.8 in)
1960	24.1 mm (0.9 in)
1961	19.1 mm (0.8 in)
1962	29.2 mm (1.1 in)
1963	20.3 mm (0.8 in)
1964	17.8 mm (0.7 in)
1965	17.8 mm (0.7 in)
1966	26.7 mm (1.1 in)
1967	41.9 mm (1.6 in)
1968	46.7 mm (1.8 in)
1969	29.2 mm (1.1 in)
1970	11.7 mm (0.5 in)
1971	50.8 mm (2.0 in)
1972	27.4 mm (1.1 in)
1973	43.2 mm (1.7 in)
1974	122.0 mm (4.8 in)
1975	27.0 mm (1.1 in)
1976	39.0 mm (1.5 in)
1977	77.6 mm (3.1 in)
1978	18.0 mm (0.7 in)
1979	59.0 mm (2.3 in)
1980	24.0 mm (0.9 in)
1981	33.0 mm (1.3 in)
1982	8.0 mm (0.31 in)
1983	20.0 mm (0.8 in)
1984	3.3 mm (0.13 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bookaloo, 1897 to 1984. The record is 265.4 mm (10.4 in) in 1921, marked on the chart; the median year is 36.1 mm (1.4 in).

Wettest five days (Rx5day) at Bookaloo by year
Year	Wettest five days (Rx5day)
1897	4.8 mm (0.19 in)
1898	51.3 mm (2.0 in)
1899	53.1 mm (2.1 in)
1900	28.2 mm (1.1 in)
1901	25.6 mm (1.0 in)
1902	10.2 mm (0.4 in)
1903	54.1 mm (2.1 in)
1904	34.5 mm (1.4 in)
1905	19.4 mm (0.8 in)
1906	43.4 mm (1.7 in)
1907	34.6 mm (1.4 in)
1909	0.0 mm (0.00 in)
1910	70.6 mm (2.8 in)
1911	39.8 mm (1.6 in)
1912	26.4 mm (1.0 in)
1913	22.2 mm (0.9 in)
1914	21.1 mm (0.8 in)
1915	54.1 mm (2.1 in)
1916	35.0 mm (1.4 in)
1917	30.2 mm (1.2 in)
1918	44.9 mm (1.8 in)
1919	31.5 mm (1.2 in)
1920	81.2 mm (3.2 in)
1921	265.4 mm (10.4 in)
1922	80.7 mm (3.2 in)
1923	49.1 mm (1.9 in)
1924	47.0 mm (1.9 in)
1925	20.3 mm (0.8 in)
1926	32.7 mm (1.3 in)
1927	32.6 mm (1.3 in)
1928	7.4 mm (0.29 in)
1929	48.5 mm (1.9 in)
1930	31.0 mm (1.2 in)
1931	109.2 mm (4.3 in)
1932	34.3 mm (1.4 in)
1933	27.9 mm (1.1 in)
1934	25.4 mm (1.0 in)
1935	32.6 mm (1.3 in)
1936	92.6 mm (3.6 in)
1937	63.8 mm (2.5 in)
1938	104.9 mm (4.1 in)
1939	39.9 mm (1.6 in)
1940	18.5 mm (0.7 in)
1941	45.0 mm (1.8 in)
1942	22.1 mm (0.9 in)
1943	48.3 mm (1.9 in)
1944	31.7 mm (1.2 in)
1945	53.2 mm (2.1 in)
1946	201.9 mm (7.9 in)
1947	41.4 mm (1.6 in)
1948	30.7 mm (1.2 in)
1949	47.2 mm (1.9 in)
1950	52.1 mm (2.1 in)
1951	63.1 mm (2.5 in)
1952	33.3 mm (1.3 in)
1953	11.4 mm (0.4 in)
1954	43.9 mm (1.7 in)
1955	56.2 mm (2.2 in)
1956	43.2 mm (1.7 in)
1957	10.7 mm (0.4 in)
1958	42.2 mm (1.7 in)
1959	21.1 mm (0.8 in)
1960	33.7 mm (1.3 in)
1961	44.6 mm (1.8 in)
1962	35.3 mm (1.4 in)
1963	36.1 mm (1.4 in)
1964	40.1 mm (1.6 in)
1965	17.8 mm (0.7 in)
1966	45.7 mm (1.8 in)
1967	74.4 mm (2.9 in)
1968	60.4 mm (2.4 in)
1969	29.2 mm (1.1 in)
1970	22.6 mm (0.9 in)
1971	50.8 mm (2.0 in)
1972	27.4 mm (1.1 in)
1973	126.7 mm (5.0 in)
1974	139.4 mm (5.5 in)
1975	32.4 mm (1.3 in)
1976	52.0 mm (2.0 in)
1977	97.2 mm (3.8 in)
1978	20.2 mm (0.8 in)
1979	64.4 mm (2.5 in)
1980	42.6 mm (1.7 in)
1981	33.0 mm (1.3 in)
1982	8.0 mm (0.31 in)
1983	20.0 mm (0.8 in)
1984	4.5 mm (0.18 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bookaloo, 1897 to 1984. The record is 130 days in 1977, marked on the chart; the median year is 58 days.

Longest dry spell (CDD) at Bookaloo by year
Year	Longest dry spell (CDD)
1897	27 days
1898	69 days
1899	95 days
1900	60 days
1901	58 days
1902	124 days
1903	63 days
1904	89 days
1905	76 days
1906	48 days
1907	61 days
1909	31 days
1910	53 days
1911	55 days
1912	52 days
1913	63 days
1914	45 days
1915	47 days
1916	68 days
1917	39 days
1918	104 days
1919	42 days
1920	84 days
1921	42 days
1922	57 days
1923	108 days
1924	53 days
1925	56 days
1926	85 days
1927	54 days
1928	91 days
1929	68 days
1930	76 days
1931	75 days
1932	35 days
1933	58 days
1934	76 days
1935	92 days
1936	101 days
1937	54 days
1938	91 days
1939	85 days
1940	91 days
1941	53 days
1942	74 days
1943	76 days
1944	90 days
1945	57 days
1946	57 days
1947	75 days
1948	73 days
1949	53 days
1950	36 days
1951	59 days
1952	56 days
1953	87 days
1954	76 days
1955	38 days
1956	46 days
1957	48 days
1958	25 days
1959	49 days
1960	58 days
1961	54 days
1962	64 days
1963	56 days
1964	66 days
1965	104 days
1966	48 days
1967	82 days
1968	33 days
1969	56 days
1970	77 days
1971	52 days
1972	67 days
1973	48 days
1974	49 days
1975	45 days
1976	42 days
1977	130 days
1978	95 days
1979	35 days
1980	107 days
1981	51 days
1982	98 days
1983	41 days
1984	17 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

74 years, 1899 to 1983

A day with at least 26.5 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 137.0 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Bookaloo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	26.5 mm (1.0 in)
5 years	43.7 mm (1.7 in)
10 years	58.8 mm (2.3 in)
25 years	83.8 mm (3.3 in)
50 years	107.6 mm (4.2 in)
100 years	137.0 mm (5.4 in)	Longer than the 74 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, 74 years of values from 1899 to 1983.

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: 129.8 mm (5.1 in) in 1921; 122.0 mm (4.8 in) in 1974; 121.9 mm (4.8 in) in 1946.

Download the Data

Data for Bookaloo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bookaloo 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 2026-10-14 (14 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