Blackwater Post Office Weather Records (ASN00035009)

Record envelope, standing records and threshold days for Blackwater Post Office (ASN00035009), Australia, with 101 years of record.

Key Facts for Blackwater Post Office

Blackwater Post Office (ASN00035009) is a weather station in Australia at -23.59 latitude and 148.88 longitude, 184 m (604 ft) above sea level.
The station reports from 1895 to 1995, 101 years of record.
0 records set at Blackwater Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Blackwater Post Office set a daily record precipitation of 12.0 mm (0.5 in) on 20 May 1995.

About the Station

Location: Australia, -23.59 latitude, 148.88 longitude.
Elevation: 184 m (604 ft).
Period of record: 1895 to 1995, 101 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 Blackwater Post Office. 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 Blackwater Post Office, 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 Blackwater Post Office still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Blackwater Post Office between 20 April 1928 and 2 February 1954. Each dot is a new record.

When Blackwater Post Office set new all-time records
Date	Kind	Detail
1928-04-20	Record daily precipitation	Record daily precipitation 134.1 mm (5.3 in)
1936-01-13	Record daily precipitation	Record daily precipitation 146.8 mm (5.8 in)
1954-02-02	Record daily precipitation	Record daily precipitation 190.5 mm (7.5 in)

Wettest Day of Each Month

Feb: 190.5 mm (7.5 in)

The wettest day on record for each calendar month at Blackwater Post Office. The most was 190.5 mm (7.5 in) on 2 February 1954.

Record daily precipitation for each month at Blackwater Post Office
Month	Record daily precipitation (mm)	Date
Jan	146.8 mm (5.8 in)	13 January 1936
Feb	190.5 mm (7.5 in)	2 February 1954
Mar	147.3 mm (5.8 in)	29 March 1958
Apr	134.1 mm (5.3 in)	20 April 1928
May	123.2 mm (4.9 in)	9 May 1930
Jun	78.7 mm (3.1 in)	4 June 1923
Jul	81.3 mm (3.2 in)	10 July 1933
Aug	83.0 mm (3.3 in)	23 August 1988
Sep	71.9 mm (2.8 in)	6 September 1947
Oct	99.0 mm (3.9 in)	23 October 1986
Nov	72.6 mm (2.9 in)	9 November 1993
Dec	122.7 mm (4.8 in)	20 December 1973

Latest Records

Latest records at Blackwater Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 1995	Blackwater Post Office, AU	daily rain	12.0 mm (0.5 in)	1.8 mm (0.07 in)	62 years	20 of 100 (Routine)
24 November 1993	Blackwater Post Office, AU	daily rain	27.0 mm (1.1 in)	1.6 mm (0.06 in)	56 years	26 of 100 (Routine)
9 November 1993	Blackwater Post Office, AU	monthly rain	72.6 mm (2.9 in)	9.4 mm (0.37 in)	59 years	43 of 100 (Notable)
13 October 1993	Blackwater Post Office, AU	daily rain	35.0 mm (1.4 in)	16.2 mm (0.6 in)	44 years	33 of 100 (Routine)
13 May 1992	Blackwater Post Office, AU	daily rain	16.6 mm (0.7 in)	6.2 mm (0.24 in)	24 years	19 of 100 (Routine)
8 January 1992	Blackwater Post Office, AU	daily rain	38.4 mm (1.5 in)	1.6 mm (0.06 in)	78 years	32 of 100 (Routine)
9 July 1991	Blackwater Post Office, AU	daily rain	34.5 mm (1.4 in)	11.4 mm (0.4 in)	95 years	45 of 100 (Notable)
1 April 1991	Blackwater Post Office, AU	daily rain	31.0 mm (1.2 in)	6.9 mm (0.27 in)	81 years	36 of 100 (Notable)
6 June 1990	Blackwater Post Office, AU	daily rain	23.8 mm (0.9 in)	15.4 mm (0.6 in)	25 years	20 of 100 (Routine)
23 May 1990	Blackwater Post Office, AU	daily rain	65.0 mm (2.6 in)	33.4 mm (1.3 in)	9 years	31 of 100 (Routine)
19 April 1990	Blackwater Post Office, AU	daily rain	15.2 mm (0.6 in)	2.5 mm (0.10 in)	28 years	18 of 100 (Routine)
3 April 1990	Blackwater Post Office, AU	daily rain	23.0 mm (0.9 in)	0.9 mm (0.04 in)	90 years	20 of 100 (Routine)
17 May 1989	Blackwater Post Office, AU	daily rain	20.2 mm (0.8 in)	8.8 mm (0.35 in)	68 years	20 of 100 (Routine)
23 February 1989	Blackwater Post Office, AU	daily rain	98.0 mm (3.9 in)	35.0 mm (1.4 in)	37 years	36 of 100 (Notable)
23 August 1988	Blackwater Post Office, AU	monthly rain	83.0 mm (3.3 in)	34.7 mm (1.4 in)	86 years	82 of 100 (Exceptional)
18 May 1988	Blackwater Post Office, AU	daily rain	57.0 mm (2.2 in)	54.2 mm (2.1 in)	33 years	51 of 100 (Notable)
28 July 1987	Blackwater Post Office, AU	daily rain	17.4 mm (0.7 in)	0.8 mm (0.03 in)	6 years	11 of 100 (Routine)
23 October 1986	Blackwater Post Office, AU	monthly rain	99.0 mm (3.9 in)	10.9 mm (0.4 in)	47 years	40 of 100 (Notable)
13 February 1986	Blackwater Post Office, AU	daily rain	57.6 mm (2.3 in)	2.5 mm (0.10 in)	32 years	19 of 100 (Routine)
26 November 1985	Blackwater Post Office, AU	daily rain	46.0 mm (1.8 in)	5.1 mm (0.20 in)	70 years	33 of 100 (Routine)

Extremes by Year

1895 to 1995

Yearly extremes at Blackwater Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	190.5 mm (7.5 in)	1954	66.0 mm (2.6 in)	101
Wettest five days (Rx5day)	326.2 mm (12.8 in)	1922	103.7 mm (4.1 in)	101
Longest dry spell (CDD)	171 days	1902	58 days	101

Wettest day (Rx1day)

The wettest day of the year at Blackwater Post Office, 1895 to 1995. The record is 190.5 mm (7.5 in) in 1954, marked on the chart; the median year is 66.0 mm (2.6 in).

Wettest day (Rx1day) at Blackwater Post Office by year
Year	Wettest day (Rx1day)
1895	23.1 mm (0.9 in)
1896	108.0 mm (4.3 in)
1897	64.8 mm (2.6 in)
1898	89.9 mm (3.5 in)
1899	96.5 mm (3.8 in)
1900	50.8 mm (2.0 in)
1901	48.3 mm (1.9 in)
1902	35.8 mm (1.4 in)
1903	87.6 mm (3.4 in)
1904	81.3 mm (3.2 in)
1905	128.8 mm (5.1 in)
1906	74.4 mm (2.9 in)
1907	50.8 mm (2.0 in)
1908	52.1 mm (2.1 in)
1909	38.1 mm (1.5 in)
1910	90.9 mm (3.6 in)
1911	62.5 mm (2.5 in)
1912	90.2 mm (3.6 in)
1913	49.5 mm (1.9 in)
1914	66.0 mm (2.6 in)
1915	40.9 mm (1.6 in)
1916	50.8 mm (2.0 in)
1917	101.6 mm (4.0 in)
1918	122.7 mm (4.8 in)
1919	57.7 mm (2.3 in)
1920	68.3 mm (2.7 in)
1921	71.1 mm (2.8 in)
1922	131.3 mm (5.2 in)
1923	78.7 mm (3.1 in)
1924	71.1 mm (2.8 in)
1925	55.1 mm (2.2 in)
1926	43.2 mm (1.7 in)
1927	59.9 mm (2.4 in)
1928	134.1 mm (5.3 in)
1929	107.7 mm (4.2 in)
1930	123.2 mm (4.9 in)
1931	61.0 mm (2.4 in)
1932	47.0 mm (1.9 in)
1933	81.3 mm (3.2 in)
1934	41.9 mm (1.6 in)
1935	74.9 mm (2.9 in)
1936	146.8 mm (5.8 in)
1937	123.4 mm (4.9 in)
1938	88.1 mm (3.5 in)
1939	64.8 mm (2.6 in)
1940	108.2 mm (4.3 in)
1941	40.9 mm (1.6 in)
1942	54.6 mm (2.1 in)
1943	61.2 mm (2.4 in)
1944	68.8 mm (2.7 in)
1945	49.0 mm (1.9 in)
1946	52.1 mm (2.1 in)
1947	71.9 mm (2.8 in)
1948	37.6 mm (1.5 in)
1949	76.2 mm (3.0 in)
1950	121.2 mm (4.8 in)
1951	80.8 mm (3.2 in)
1952	88.9 mm (3.5 in)
1953	87.6 mm (3.4 in)
1954	190.5 mm (7.5 in)
1955	66.5 mm (2.6 in)
1956	81.3 mm (3.2 in)
1957	57.9 mm (2.3 in)
1958	147.3 mm (5.8 in)
1959	130.8 mm (5.1 in)
1960	52.8 mm (2.1 in)
1961	38.6 mm (1.5 in)
1962	52.6 mm (2.1 in)
1963	36.8 mm (1.4 in)
1964	80.8 mm (3.2 in)
1965	67.3 mm (2.6 in)
1966	54.9 mm (2.2 in)
1967	50.3 mm (2.0 in)
1968	57.2 mm (2.3 in)
1969	31.8 mm (1.3 in)
1970	59.4 mm (2.3 in)
1971	116.8 mm (4.6 in)
1972	68.6 mm (2.7 in)
1973	122.7 mm (4.8 in)
1974	114.8 mm (4.5 in)
1975	78.2 mm (3.1 in)
1976	60.0 mm (2.4 in)
1977	86.0 mm (3.4 in)
1978	56.0 mm (2.2 in)
1979	40.0 mm (1.6 in)
1980	48.8 mm (1.9 in)
1981	44.0 mm (1.7 in)
1982	43.4 mm (1.7 in)
1983	57.2 mm (2.3 in)
1984	69.2 mm (2.7 in)
1985	59.6 mm (2.3 in)
1986	99.0 mm (3.9 in)
1987	58.0 mm (2.3 in)
1988	83.0 mm (3.3 in)
1989	98.0 mm (3.9 in)
1990	65.0 mm (2.6 in)
1991	44.0 mm (1.7 in)
1992	38.4 mm (1.5 in)
1993	72.6 mm (2.9 in)
1994	61.6 mm (2.4 in)
1995	55.4 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Blackwater Post Office, 1895 to 1995. The record is 326.2 mm (12.8 in) in 1922, marked on the chart; the median year is 103.7 mm (4.1 in).

Wettest five days (Rx5day) at Blackwater Post Office by year
Year	Wettest five days (Rx5day)
1895	37.9 mm (1.5 in)
1896	223.3 mm (8.8 in)
1897	117.1 mm (4.6 in)
1898	129.8 mm (5.1 in)
1899	178.5 mm (7.0 in)
1900	59.9 mm (2.4 in)
1901	55.9 mm (2.2 in)
1902	44.4 mm (1.7 in)
1903	117.6 mm (4.6 in)
1904	105.9 mm (4.2 in)
1905	164.1 mm (6.5 in)
1906	112.2 mm (4.4 in)
1907	112.7 mm (4.4 in)
1908	120.4 mm (4.7 in)
1909	51.8 mm (2.0 in)
1910	135.8 mm (5.3 in)
1911	90.9 mm (3.6 in)
1912	128.3 mm (5.1 in)
1913	103.7 mm (4.1 in)
1914	85.9 mm (3.4 in)
1915	80.0 mm (3.1 in)
1916	125.7 mm (4.9 in)
1917	193.0 mm (7.6 in)
1918	243.9 mm (9.6 in)
1919	64.1 mm (2.5 in)
1920	123.2 mm (4.9 in)
1921	154.9 mm (6.1 in)
1922	326.2 mm (12.8 in)
1923	83.3 mm (3.3 in)
1924	125.7 mm (4.9 in)
1925	63.0 mm (2.5 in)
1926	77.0 mm (3.0 in)
1927	106.1 mm (4.2 in)
1928	162.3 mm (6.4 in)
1929	117.1 mm (4.6 in)
1930	147.0 mm (5.8 in)
1931	100.9 mm (4.0 in)
1932	60.9 mm (2.4 in)
1933	147.8 mm (5.8 in)
1934	60.5 mm (2.4 in)
1935	85.1 mm (3.4 in)
1936	146.8 mm (5.8 in)
1937	282.7 mm (11.1 in)
1938	111.5 mm (4.4 in)
1939	94.8 mm (3.7 in)
1940	169.2 mm (6.7 in)
1941	63.8 mm (2.5 in)
1942	88.7 mm (3.5 in)
1943	69.6 mm (2.7 in)
1944	112.5 mm (4.4 in)
1945	87.6 mm (3.4 in)
1946	71.1 mm (2.8 in)
1947	100.6 mm (4.0 in)
1948	72.4 mm (2.9 in)
1949	113.3 mm (4.5 in)
1950	248.5 mm (9.8 in)
1951	125.7 mm (4.9 in)
1952	167.4 mm (6.6 in)
1953	131.5 mm (5.2 in)
1954	261.6 mm (10.3 in)
1955	169.9 mm (6.7 in)
1956	145.6 mm (5.7 in)
1957	101.8 mm (4.0 in)
1958	167.1 mm (6.6 in)
1959	166.9 mm (6.6 in)
1960	85.1 mm (3.4 in)
1961	82.3 mm (3.2 in)
1962	54.1 mm (2.1 in)
1963	75.6 mm (3.0 in)
1964	91.7 mm (3.6 in)
1965	136.4 mm (5.4 in)
1966	102.6 mm (4.0 in)
1967	86.6 mm (3.4 in)
1968	98.3 mm (3.9 in)
1969	74.7 mm (2.9 in)
1970	79.2 mm (3.1 in)
1971	116.8 mm (4.6 in)
1972	145.6 mm (5.7 in)
1973	160.3 mm (6.3 in)
1974	148.8 mm (5.9 in)
1975	141.2 mm (5.6 in)
1976	193.6 mm (7.6 in)
1977	143.4 mm (5.6 in)
1978	117.0 mm (4.6 in)
1979	53.8 mm (2.1 in)
1980	54.8 mm (2.2 in)
1981	59.8 mm (2.4 in)
1982	43.4 mm (1.7 in)
1983	183.3 mm (7.2 in)
1984	90.2 mm (3.6 in)
1985	46.0 mm (1.8 in)
1986	99.0 mm (3.9 in)
1987	58.0 mm (2.3 in)
1988	88.8 mm (3.5 in)
1989	102.4 mm (4.0 in)
1990	69.4 mm (2.7 in)
1991	79.0 mm (3.1 in)
1992	49.5 mm (1.9 in)
1993	78.8 mm (3.1 in)
1994	118.4 mm (4.7 in)
1995	68.8 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Blackwater Post Office, 1895 to 1995. The record is 171 days in 1902, marked on the chart; the median year is 58 days.

Longest dry spell (CDD) at Blackwater Post Office by year
Year	Longest dry spell (CDD)
1895	59 days
1896	29 days
1897	89 days
1898	49 days
1899	29 days
1900	36 days
1901	59 days
1902	171 days
1903	37 days
1904	128 days
1905	62 days
1906	66 days
1907	73 days
1908	33 days
1909	45 days
1910	58 days
1911	86 days
1912	45 days
1913	76 days
1914	93 days
1915	73 days
1916	65 days
1917	74 days
1918	69 days
1919	94 days
1920	30 days
1921	70 days
1922	103 days
1923	74 days
1924	62 days
1925	55 days
1926	93 days
1927	62 days
1928	100 days
1929	102 days
1930	52 days
1931	66 days
1932	115 days
1933	45 days
1934	54 days
1935	82 days
1936	76 days
1937	50 days
1938	49 days
1939	61 days
1940	45 days
1941	108 days
1942	71 days
1943	67 days
1944	92 days
1945	50 days
1946	159 days
1947	76 days
1948	96 days
1949	46 days
1950	71 days
1951	113 days
1952	38 days
1953	56 days
1954	29 days
1955	48 days
1956	41 days
1957	68 days
1958	38 days
1959	75 days
1960	52 days
1961	51 days
1962	45 days
1963	79 days
1964	43 days
1965	48 days
1966	46 days
1967	58 days
1968	45 days
1969	55 days
1970	118 days
1971	39 days
1972	70 days
1973	28 days
1974	52 days
1975	53 days
1976	47 days
1977	81 days
1978	48 days
1979	116 days
1980	56 days
1981	38 days
1982	56 days
1983	37 days
1984	37 days
1985	35 days
1986	38 days
1987	48 days
1988	44 days
1989	35 days
1990	98 days
1991	123 days
1992	80 days
1993	91 days
1994	120 days
1995	40 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

91 years, 1896 to 1994

A day with at least 67.7 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 188.3 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Blackwater Post Office: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	67.7 mm (2.7 in)
5 years	95.2 mm (3.7 in)
10 years	115.2 mm (4.5 in)
25 years	142.6 mm (5.6 in)
50 years	164.7 mm (6.5 in)
100 years	188.3 mm (7.4 in)	Longer than the 91 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, 91 years of values from 1896 to 1994.

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: 190.5 mm (7.5 in) in 1954; 147.3 mm (5.8 in) in 1958; 146.8 mm (5.8 in) in 1936.

Download the Data

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