Boorolong Weather Records (ASN00056144)

Record envelope, standing records and threshold days for Boorolong (ASN00056144), Australia, with 67 years of record.

Key Facts for Boorolong

Boorolong (ASN00056144) is a weather station in Australia at -30.30 latitude and 151.50 longitude, n/a above sea level.
The station reports from 1872 to 1938, 67 years of record.
0 records set at Boorolong still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Boorolong set a daily record precipitation of 39.6 mm (1.6 in) on 21 January 1938.

About the Station

Location: Australia, -30.30 latitude, 151.50 longitude.
Elevation: n/a.
Period of record: 1872 to 1938, 67 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 Boorolong. 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 Boorolong, 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 Boorolong still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Boorolong between 2 June 1903 and 2 June 1903. Each dot is a new record.

Wettest Day of Each Month

Jun: 131.3 mm (5.2 in)

The wettest day on record for each calendar month at Boorolong. The most was 131.3 mm (5.2 in) on 2 June 1903.

Record daily precipitation for each month at Boorolong
Month	Record daily precipitation (mm)	Date
Jan	75.7 mm (3.0 in)	14 January 1891
Feb	76.2 mm (3.0 in)	27 February 1916
Mar	81.5 mm (3.2 in)	16 March 1937
Apr	64.0 mm (2.5 in)	10 April 1879
May	48.8 mm (1.9 in)	28 May 1921
Jun	131.3 mm (5.2 in)	2 June 1903
Jul	65.0 mm (2.6 in)	4 July 1874
Aug	62.0 mm (2.4 in)	23 August 1881
Sep	67.1 mm (2.6 in)	17 September 1932
Oct	58.4 mm (2.3 in)	17 October 1916
Nov	66.3 mm (2.6 in)	4 November 1895
Dec	72.9 mm (2.9 in)	25 December 1876

Latest Records

Latest records at Boorolong
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 January 1938	Boorolong, AU	daily rain	39.6 mm (1.6 in)	16.0 mm (0.6 in)	37 years	31 of 100 (Routine)
29 December 1937	Boorolong, AU	daily rain	29.2 mm (1.1 in)	5.3 mm (0.21 in)	45 years	23 of 100 (Routine)
2 September 1937	Boorolong, AU	daily rain	24.1 mm (0.9 in)	5.8 mm (0.23 in)	48 years	20 of 100 (Routine)
22 August 1937	Boorolong, AU	daily rain	25.4 mm (1.0 in)	10.2 mm (0.4 in)	55 years	34 of 100 (Routine)
1 August 1937	Boorolong, AU	daily rain	19.1 mm (0.8 in)	6.4 mm (0.25 in)	16 years	18 of 100 (Routine)
22 July 1937	Boorolong, AU	daily rain	35.6 mm (1.4 in)	17.3 mm (0.7 in)	19 years	30 of 100 (Routine)
6 June 1937	Boorolong, AU	daily rain	27.9 mm (1.1 in)	10.9 mm (0.4 in)	36 years	26 of 100 (Routine)
16 March 1937	Boorolong, AU	monthly rain	81.5 mm (3.2 in)	11.4 mm (0.4 in)	27 years	34 of 100 (Routine)
1 January 1937	Boorolong, AU	daily rain	25.9 mm (1.0 in)	9.1 mm (0.36 in)	31 years	23 of 100 (Routine)
9 December 1936	Boorolong, AU	daily rain	23.1 mm (0.9 in)	5.1 mm (0.20 in)	38 years	20 of 100 (Routine)
8 September 1936	Boorolong, AU	daily rain	27.9 mm (1.1 in)	10.9 mm (0.4 in)	13 years	19 of 100 (Routine)
1 September 1936	Boorolong, AU	daily rain	33.8 mm (1.3 in)	10.7 mm (0.4 in)	60 years	34 of 100 (Routine)
4 August 1936	Boorolong, AU	daily rain	48.8 mm (1.9 in)	20.6 mm (0.8 in)	29 years	39 of 100 (Notable)
6 July 1936	Boorolong, AU	daily rain	13.0 mm (0.5 in)	1.3 mm (0.05 in)	5 years	8 of 100 (Routine)
13 May 1936	Boorolong, AU	daily rain	35.6 mm (1.4 in)	17.8 mm (0.7 in)	23 years	32 of 100 (Routine)
13 September 1935	Boorolong, AU	daily rain	27.9 mm (1.1 in)	10.9 mm (0.4 in)	12 years	19 of 100 (Routine)
29 June 1935	Boorolong, AU	daily rain (Tie)	15.2 mm (0.6 in)	tie	44 years	4 of 100 (Routine)
16 January 1935	Boorolong, AU	daily rain	25.4 mm (1.0 in)	2.3 mm (0.09 in)	28 years	16 of 100 (Routine)
28 July 1934	Boorolong, AU	daily rain	30.5 mm (1.2 in)	10.7 mm (0.4 in)	21 years	24 of 100 (Routine)
5 April 1934	Boorolong, AU	daily rain	33.0 mm (1.3 in)	20.3 mm (0.8 in)	28 years	34 of 100 (Routine)

Extremes by Year

1872 to 1938

Yearly extremes at Boorolong: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	131.3 mm (5.2 in)	1903	49.5 mm (1.9 in)	66
Wettest five days (Rx5day)	163.9 mm (6.5 in)	1891	84.6 mm (3.3 in)	66
Longest dry spell (CDD)	65 days	1934	25 days	66

Wettest day (Rx1day)

The wettest day of the year at Boorolong, 1872 to 1938. The record is 131.3 mm (5.2 in) in 1903, marked on the chart; the median year is 49.5 mm (1.9 in).

Wettest day (Rx1day) at Boorolong by year
Year	Wettest day (Rx1day)
1872	66.0 mm (2.6 in)
1873	59.7 mm (2.4 in)
1874	65.0 mm (2.6 in)
1875	63.5 mm (2.5 in)
1876	72.9 mm (2.9 in)
1877	46.0 mm (1.8 in)
1878	60.7 mm (2.4 in)
1879	66.0 mm (2.6 in)
1880	49.5 mm (1.9 in)
1881	62.0 mm (2.4 in)
1882	51.8 mm (2.0 in)
1883	43.9 mm (1.7 in)
1884	38.1 mm (1.5 in)
1885	37.3 mm (1.5 in)
1886	56.4 mm (2.2 in)
1887	34.0 mm (1.3 in)
1888	27.7 mm (1.1 in)
1889	49.5 mm (1.9 in)
1890	56.9 mm (2.2 in)
1891	75.7 mm (3.0 in)
1892	62.2 mm (2.4 in)
1893	45.7 mm (1.8 in)
1894	56.1 mm (2.2 in)
1895	66.3 mm (2.6 in)
1896	55.1 mm (2.2 in)
1897	53.6 mm (2.1 in)
1898	39.4 mm (1.6 in)
1899	60.7 mm (2.4 in)
1900	52.8 mm (2.1 in)
1901	49.5 mm (1.9 in)
1902	52.6 mm (2.1 in)
1903	131.3 mm (5.2 in)
1904	53.3 mm (2.1 in)
1905	42.2 mm (1.7 in)
1906	43.4 mm (1.7 in)
1907	31.5 mm (1.2 in)
1908	40.6 mm (1.6 in)
1909	41.7 mm (1.6 in)
1910	70.1 mm (2.8 in)
1911	35.1 mm (1.4 in)
1912	42.4 mm (1.7 in)
1913	48.5 mm (1.9 in)
1914	45.7 mm (1.8 in)
1915	49.5 mm (1.9 in)
1916	76.2 mm (3.0 in)
1917	37.6 mm (1.5 in)
1918	45.0 mm (1.8 in)
1919	53.1 mm (2.1 in)
1920	55.9 mm (2.2 in)
1921	51.3 mm (2.0 in)
1922	37.3 mm (1.5 in)
1923	35.6 mm (1.4 in)
1924	56.9 mm (2.2 in)
1925	36.1 mm (1.4 in)
1926	35.1 mm (1.4 in)
1927	49.8 mm (2.0 in)
1928	17.8 mm (0.7 in)
1929	45.5 mm (1.8 in)
1931	47.0 mm (1.9 in)
1932	67.1 mm (2.6 in)
1933	41.9 mm (1.6 in)
1934	33.0 mm (1.3 in)
1935	37.6 mm (1.5 in)
1936	48.8 mm (1.9 in)
1937	81.5 mm (3.2 in)
1938	39.6 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Boorolong, 1872 to 1938. The record is 163.9 mm (6.5 in) in 1891, marked on the chart; the median year is 84.6 mm (3.3 in).

Wettest five days (Rx5day) at Boorolong by year
Year	Wettest five days (Rx5day)
1872	107.1 mm (4.2 in)
1873	132.6 mm (5.2 in)
1874	106.7 mm (4.2 in)
1875	108.4 mm (4.3 in)
1876	150.6 mm (5.9 in)
1877	94.8 mm (3.7 in)
1878	94.7 mm (3.7 in)
1879	89.2 mm (3.5 in)
1880	71.4 mm (2.8 in)
1881	87.8 mm (3.5 in)
1882	104.1 mm (4.1 in)
1883	74.4 mm (2.9 in)
1884	68.1 mm (2.7 in)
1885	84.4 mm (3.3 in)
1886	76.9 mm (3.0 in)
1887	67.5 mm (2.7 in)
1888	51.1 mm (2.0 in)
1889	72.1 mm (2.8 in)
1890	119.8 mm (4.7 in)
1891	163.9 mm (6.5 in)
1892	133.8 mm (5.3 in)
1893	114.8 mm (4.5 in)
1894	109.5 mm (4.3 in)
1895	111.8 mm (4.4 in)
1896	68.3 mm (2.7 in)
1897	115.5 mm (4.5 in)
1898	65.8 mm (2.6 in)
1899	70.3 mm (2.8 in)
1900	105.7 mm (4.2 in)
1901	80.8 mm (3.2 in)
1902	92.5 mm (3.6 in)
1903	155.0 mm (6.1 in)
1904	102.3 mm (4.0 in)
1905	72.2 mm (2.8 in)
1906	64.7 mm (2.5 in)
1907	67.9 mm (2.7 in)
1908	74.9 mm (2.9 in)
1909	94.1 mm (3.7 in)
1910	147.3 mm (5.8 in)
1911	76.7 mm (3.0 in)
1912	73.9 mm (2.9 in)
1913	84.8 mm (3.3 in)
1914	101.6 mm (4.0 in)
1915	72.7 mm (2.9 in)
1916	105.9 mm (4.2 in)
1917	121.9 mm (4.8 in)
1918	63.5 mm (2.5 in)
1919	65.0 mm (2.6 in)
1920	69.2 mm (2.7 in)
1921	101.6 mm (4.0 in)
1922	86.4 mm (3.4 in)
1923	75.2 mm (3.0 in)
1924	107.7 mm (4.2 in)
1925	72.6 mm (2.9 in)
1926	55.9 mm (2.2 in)
1927	72.5 mm (2.9 in)
1928	26.1 mm (1.0 in)
1929	69.1 mm (2.7 in)
1931	90.2 mm (3.6 in)
1932	108.6 mm (4.3 in)
1933	80.1 mm (3.2 in)
1934	81.2 mm (3.2 in)
1935	61.0 mm (2.4 in)
1936	82.4 mm (3.2 in)
1937	101.3 mm (4.0 in)
1938	64.7 mm (2.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Boorolong, 1872 to 1938. The record is 65 days in 1934, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Boorolong by year
Year	Longest dry spell (CDD)
1872	21 days
1873	25 days
1874	15 days
1875	19 days
1876	21 days
1877	25 days
1878	31 days
1879	13 days
1880	20 days
1881	36 days
1882	23 days
1883	29 days
1884	33 days
1885	29 days
1886	16 days
1887	19 days
1888	33 days
1889	13 days
1890	19 days
1891	19 days
1892	20 days
1893	20 days
1894	17 days
1895	28 days
1896	19 days
1897	33 days
1898	24 days
1899	17 days
1900	17 days
1901	34 days
1902	30 days
1903	33 days
1904	23 days
1905	20 days
1906	20 days
1907	16 days
1908	26 days
1909	24 days
1910	21 days
1911	23 days
1912	60 days
1913	27 days
1914	45 days
1915	48 days
1916	25 days
1917	28 days
1918	42 days
1919	40 days
1920	24 days
1921	27 days
1922	30 days
1923	46 days
1924	24 days
1925	42 days
1926	30 days
1927	30 days
1928	30 days
1929	40 days
1931	23 days
1932	25 days
1933	63 days
1934	65 days
1935	36 days
1936	24 days
1937	22 days
1938	19 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

59 years, 1874 to 1937

A day with at least 49.2 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 102.8 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Boorolong: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	49.2 mm (1.9 in)
5 years	62.5 mm (2.5 in)
10 years	71.7 mm (2.8 in)
25 years	83.9 mm (3.3 in)
50 years	93.2 mm (3.7 in)
100 years	102.8 mm (4.0 in)	Longer than the 59 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, 59 years of values from 1874 to 1937.

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: 131.3 mm (5.2 in) in 1903; 81.5 mm (3.2 in) in 1937; 76.2 mm (3.0 in) in 1916.

Download the Data

Data for Boorolong standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Boorolong 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