Macarthur (Post Office) Weather Records (ASN00090055)

Record envelope, standing records and threshold days for Macarthur (Post Office) (ASN00090055), Australia, with 91 years of record.

Key Facts for Macarthur (Post Office)

Macarthur (Post Office) (ASN00090055) is a weather station in Australia at -38.03 latitude and 142.00 longitude, 80 m (262 ft) above sea level.
The station reports from 1936 to 2026, 91 years of record.
0 records set at Macarthur (Post Office) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Macarthur (Post Office) set a daily record precipitation of 15.0 mm (0.6 in) on 4 June 2026.

About the Station

Location: Australia, -38.03 latitude, 142.00 longitude.
Elevation: 80 m (262 ft).
Period of record: 1936 to 2026, 91 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 Macarthur (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 Macarthur (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 Macarthur (Post Office) still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Macarthur (Post Office) between 16 October 1976 and 22 January 2007. Each dot is a new record.

When Macarthur (Post Office) set new all-time records
Date	Kind	Detail
1976-10-16	Record daily precipitation	Record daily precipitation 73.0 mm (2.9 in)
1992-04-08	Record daily precipitation	Record daily precipitation 80.0 mm (3.1 in)
2007-01-22	Record daily precipitation	Record daily precipitation 84.6 mm (3.3 in)

Wettest Day of Each Month

Jan: 84.6 mm (3.3 in)

The wettest day on record for each calendar month at Macarthur (Post Office). The most was 84.6 mm (3.3 in) on 22 January 2007.

Record daily precipitation for each month at Macarthur (Post Office)
Month	Record daily precipitation (mm)	Date
Jan	84.6 mm (3.3 in)	22 January 2007
Feb	60.2 mm (2.4 in)	7 February 1957
Mar	72.1 mm (2.8 in)	16 March 1946
Apr	80.0 mm (3.1 in)	8 April 1992
May	45.2 mm (1.8 in)	14 May 1945
Jun	63.4 mm (2.5 in)	8 June 2025
Jul	39.4 mm (1.6 in)	1 July 2010
Aug	49.0 mm (1.9 in)	11 August 2010
Sep	48.0 mm (1.9 in)	26 September 1960
Oct	73.0 mm (2.9 in)	16 October 1976
Nov	59.0 mm (2.3 in)	29 November 1977
Dec	50.0 mm (2.0 in)	26 December 1959

Latest Records

Latest records at Macarthur (Post Office)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 June 2026	Macarthur (Post Office), AU	daily rain	15.0 mm (0.6 in)	2.2 mm (0.09 in)	29 years	20 of 100 (Routine)
30 September 2025	Macarthur (Post Office), AU	daily rain	14.4 mm (0.6 in)	4.0 mm (0.16 in)	72 years	20 of 100 (Routine)
25 June 2025	Macarthur (Post Office), AU	daily rain	25.2 mm (1.0 in)	2.1 mm (0.08 in)	66 years	31 of 100 (Routine)
8 June 2025	Macarthur (Post Office), AU	monthly rain	63.4 mm (2.5 in)	22.8 mm (0.9 in)	78 years	81 of 100 (Exceptional)
19 October 2024	Macarthur (Post Office), AU	daily rain	11.6 mm (0.5 in)	0.6 mm (0.02 in)	7 years	10 of 100 (Routine)
16 July 2024	Macarthur (Post Office), AU	daily rain	21.2 mm (0.8 in)	6.2 mm (0.24 in)	39 years	20 of 100 (Routine)
8 June 2023	Macarthur (Post Office), AU	daily rain	25.0 mm (1.0 in)	8.0 mm (0.31 in)	66 years	42 of 100 (Notable)
3 February 2023	Macarthur (Post Office), AU	daily rain	20.0 mm (0.8 in)	12.9 mm (0.5 in)	52 years	20 of 100 (Routine)
14 December 2022	Macarthur (Post Office), AU	daily rain	23.2 mm (0.9 in)	7.0 mm (0.28 in)	32 years	20 of 100 (Routine)
13 October 2022	Macarthur (Post Office), AU	daily rain	10.4 mm (0.4 in)	0.2 mm (0.01 in)	32 years	17 of 100 (Routine)
30 August 2022	Macarthur (Post Office), AU	daily rain	27.2 mm (1.1 in)	4.2 mm (0.17 in)	17 years	20 of 100 (Routine)
7 January 2022	Macarthur (Post Office), AU	daily rain	29.0 mm (1.1 in)	5.0 mm (0.20 in)	40 years	25 of 100 (Routine)
3 August 2021	Macarthur (Post Office), AU	daily rain	13.2 mm (0.5 in)	0.5 mm (0.02 in)	62 years	20 of 100 (Routine)
5 July 2021	Macarthur (Post Office), AU	daily rain	32.6 mm (1.3 in)	8.7 mm (0.34 in)	78 years	46 of 100 (Notable)
9 June 2021	Macarthur (Post Office), AU	daily rain	18.2 mm (0.7 in)	4.8 mm (0.19 in)	16 years	20 of 100 (Routine)
4 May 2021	Macarthur (Post Office), AU	daily rain	22.6 mm (0.9 in)	2.8 mm (0.11 in)	50 years	20 of 100 (Routine)
22 December 2020	Macarthur (Post Office), AU	daily rain	23.4 mm (0.9 in)	13.0 mm (0.5 in)	69 years	20 of 100 (Routine)
28 November 2020	Macarthur (Post Office), AU	daily rain	23.8 mm (0.9 in)	15.9 mm (0.6 in)	81 years	20 of 100 (Routine)
8 October 2020	Macarthur (Post Office), AU	daily rain	35.0 mm (1.4 in)	20.0 mm (0.8 in)	45 years	49 of 100 (Notable)
25 September 2020	Macarthur (Post Office), AU	daily rain	27.2 mm (1.1 in)	7.1 mm (0.28 in)	70 years	41 of 100 (Notable)

Extremes by Year

1936 to 2026

Yearly extremes at Macarthur (Post Office): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	84.6 mm (3.3 in)	2007	35.8 mm (1.4 in)	91
Wettest five days (Rx5day)	145.6 mm (5.7 in)	1983	56.6 mm (2.2 in)	91
Longest dry spell (CDD)	56 days	1936	21 days	91

Wettest day (Rx1day)

The wettest day of the year at Macarthur (Post Office), 1936 to 2026. The record is 84.6 mm (3.3 in) in 2007, marked on the chart; the median year is 35.8 mm (1.4 in).

Wettest day (Rx1day) at Macarthur (Post Office) by year
Year	Wettest day (Rx1day)
1936	52.8 mm (2.1 in)
1937	35.3 mm (1.4 in)
1938	23.9 mm (0.9 in)
1939	33.3 mm (1.3 in)
1940	26.4 mm (1.0 in)
1941	64.0 mm (2.5 in)
1942	41.9 mm (1.6 in)
1943	39.1 mm (1.5 in)
1944	27.2 mm (1.1 in)
1945	45.2 mm (1.8 in)
1946	72.1 mm (2.8 in)
1947	31.0 mm (1.2 in)
1948	35.1 mm (1.4 in)
1949	36.1 mm (1.4 in)
1950	22.4 mm (0.9 in)
1951	36.6 mm (1.4 in)
1952	63.2 mm (2.5 in)
1953	49.3 mm (1.9 in)
1954	49.3 mm (1.9 in)
1955	41.9 mm (1.6 in)
1956	26.2 mm (1.0 in)
1957	60.2 mm (2.4 in)
1958	30.5 mm (1.2 in)
1959	50.0 mm (2.0 in)
1960	48.0 mm (1.9 in)
1961	33.3 mm (1.3 in)
1962	21.8 mm (0.9 in)
1963	31.0 mm (1.2 in)
1964	21.6 mm (0.9 in)
1965	18.3 mm (0.7 in)
1966	26.2 mm (1.0 in)
1967	44.2 mm (1.7 in)
1968	32.5 mm (1.3 in)
1969	53.6 mm (2.1 in)
1970	57.2 mm (2.3 in)
1971	41.1 mm (1.6 in)
1972	41.1 mm (1.6 in)
1973	66.0 mm (2.6 in)
1974	27.0 mm (1.1 in)
1975	40.0 mm (1.6 in)
1976	73.0 mm (2.9 in)
1977	59.0 mm (2.3 in)
1978	58.0 mm (2.3 in)
1979	41.0 mm (1.6 in)
1980	37.0 mm (1.5 in)
1981	34.0 mm (1.3 in)
1982	24.0 mm (0.9 in)
1983	72.0 mm (2.8 in)
1984	39.0 mm (1.5 in)
1985	44.0 mm (1.7 in)
1986	30.4 mm (1.2 in)
1987	47.2 mm (1.9 in)
1988	34.2 mm (1.3 in)
1989	24.0 mm (0.9 in)
1990	35.4 mm (1.4 in)
1991	29.0 mm (1.1 in)
1992	80.0 mm (3.1 in)
1993	27.0 mm (1.1 in)
1994	30.0 mm (1.2 in)
1995	23.2 mm (0.9 in)
1996	29.0 mm (1.1 in)
1997	25.0 mm (1.0 in)
1998	36.0 mm (1.4 in)
1999	29.0 mm (1.1 in)
2000	22.2 mm (0.9 in)
2001	26.0 mm (1.0 in)
2002	29.0 mm (1.1 in)
2003	48.2 mm (1.9 in)
2004	35.8 mm (1.4 in)
2005	17.0 mm (0.7 in)
2006	26.0 mm (1.0 in)
2007	84.6 mm (3.3 in)
2008	26.0 mm (1.0 in)
2009	27.0 mm (1.1 in)
2010	49.0 mm (1.9 in)
2011	53.0 mm (2.1 in)
2012	39.0 mm (1.5 in)
2013	45.4 mm (1.8 in)
2014	19.4 mm (0.8 in)
2015	46.4 mm (1.8 in)
2016	36.4 mm (1.4 in)
2017	45.2 mm (1.8 in)
2018	28.4 mm (1.1 in)
2019	23.0 mm (0.9 in)
2020	35.0 mm (1.4 in)
2021	44.2 mm (1.7 in)
2022	29.0 mm (1.1 in)
2023	38.4 mm (1.5 in)
2024	24.6 mm (1.0 in)
2025	63.4 mm (2.5 in)
2026	24.4 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Macarthur (Post Office), 1936 to 2026. The record is 145.6 mm (5.7 in) in 1983, marked on the chart; the median year is 56.6 mm (2.2 in).

Wettest five days (Rx5day) at Macarthur (Post Office) by year
Year	Wettest five days (Rx5day)
1936	60.6 mm (2.4 in)
1937	50.2 mm (2.0 in)
1938	45.5 mm (1.8 in)
1939	69.9 mm (2.8 in)
1940	50.6 mm (2.0 in)
1941	100.6 mm (4.0 in)
1942	61.5 mm (2.4 in)
1943	59.4 mm (2.3 in)
1944	56.6 mm (2.2 in)
1945	80.2 mm (3.2 in)
1946	81.8 mm (3.2 in)
1947	76.9 mm (3.0 in)
1948	70.6 mm (2.8 in)
1949	71.6 mm (2.8 in)
1950	34.6 mm (1.4 in)
1951	75.7 mm (3.0 in)
1952	75.4 mm (3.0 in)
1953	83.8 mm (3.3 in)
1954	54.4 mm (2.1 in)
1955	69.8 mm (2.7 in)
1956	58.5 mm (2.3 in)
1957	71.9 mm (2.8 in)
1958	63.3 mm (2.5 in)
1959	65.0 mm (2.6 in)
1960	68.9 mm (2.7 in)
1961	48.3 mm (1.9 in)
1962	52.3 mm (2.1 in)
1963	56.0 mm (2.2 in)
1964	53.2 mm (2.1 in)
1965	36.3 mm (1.4 in)
1966	59.5 mm (2.3 in)
1967	56.9 mm (2.2 in)
1968	80.5 mm (3.2 in)
1969	77.5 mm (3.1 in)
1970	59.7 mm (2.4 in)
1971	72.3 mm (2.8 in)
1972	61.2 mm (2.4 in)
1973	76.2 mm (3.0 in)
1974	47.8 mm (1.9 in)
1975	71.6 mm (2.8 in)
1976	80.0 mm (3.1 in)
1977	64.4 mm (2.5 in)
1978	80.6 mm (3.2 in)
1979	63.4 mm (2.5 in)
1980	47.8 mm (1.9 in)
1981	71.8 mm (2.8 in)
1982	31.6 mm (1.2 in)
1983	145.6 mm (5.7 in)
1984	79.6 mm (3.1 in)
1985	74.8 mm (2.9 in)
1986	49.0 mm (1.9 in)
1987	85.2 mm (3.4 in)
1988	24.6 mm (1.0 in)
1989	46.0 mm (1.8 in)
1990	45.8 mm (1.8 in)
1991	41.0 mm (1.6 in)
1992	88.4 mm (3.5 in)
1993	39.8 mm (1.6 in)
1994	48.2 mm (1.9 in)
1995	34.6 mm (1.4 in)
1996	22.4 mm (0.9 in)
1997	31.2 mm (1.2 in)
1998	40.0 mm (1.6 in)
1999	27.8 mm (1.1 in)
2000	37.2 mm (1.5 in)
2001	46.6 mm (1.8 in)
2002	30.4 mm (1.2 in)
2003	52.2 mm (2.1 in)
2004	62.0 mm (2.4 in)
2005	29.2 mm (1.1 in)
2006	27.6 mm (1.1 in)
2007	84.6 mm (3.3 in)
2008	50.0 mm (2.0 in)
2009	29.0 mm (1.1 in)
2010	38.6 mm (1.5 in)
2011	108.1 mm (4.3 in)
2012	46.3 mm (1.8 in)
2013	64.2 mm (2.5 in)
2014	19.0 mm (0.7 in)
2015	48.6 mm (1.9 in)
2016	35.6 mm (1.4 in)
2017	78.4 mm (3.1 in)
2018	30.4 mm (1.2 in)
2019	30.6 mm (1.2 in)
2020	26.6 mm (1.0 in)
2021	45.2 mm (1.8 in)
2022	31.2 mm (1.2 in)
2023	53.0 mm (2.1 in)
2024	36.8 mm (1.4 in)
2025	89.8 mm (3.5 in)
2026	59.2 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Macarthur (Post Office), 1936 to 2026. The record is 56 days in 1936, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Macarthur (Post Office) by year
Year	Longest dry spell (CDD)
1936	56 days
1937	22 days
1938	23 days
1939	16 days
1940	15 days
1941	12 days
1942	20 days
1943	23 days
1944	20 days
1945	19 days
1946	13 days
1947	20 days
1948	28 days
1949	13 days
1950	26 days
1951	39 days
1952	12 days
1953	17 days
1954	25 days
1955	19 days
1956	25 days
1957	18 days
1958	19 days
1959	17 days
1960	18 days
1961	35 days
1962	19 days
1963	17 days
1964	20 days
1965	23 days
1966	12 days
1967	25 days
1968	24 days
1969	31 days
1970	32 days
1971	16 days
1972	24 days
1973	16 days
1974	30 days
1975	29 days
1976	15 days
1977	20 days
1978	23 days
1979	20 days
1980	49 days
1981	25 days
1982	21 days
1983	33 days
1984	20 days
1985	20 days
1986	31 days
1987	28 days
1988	31 days
1989	24 days
1990	21 days
1991	34 days
1992	15 days
1993	17 days
1994	18 days
1995	19 days
1996	19 days
1997	13 days
1998	16 days
1999	21 days
2000	38 days
2001	26 days
2002	19 days
2003	24 days
2004	22 days
2005	20 days
2006	36 days
2007	21 days
2008	25 days
2009	35 days
2010	17 days
2011	12 days
2012	19 days
2013	23 days
2014	41 days
2015	17 days
2016	21 days
2017	21 days
2018	16 days
2019	35 days
2020	21 days
2021	31 days
2022	17 days
2023	17 days
2024	42 days
2025	13 days
2026	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

50 years, 1936 to 2025

A day with at least 39.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 87.5 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Macarthur (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	39.8 mm (1.6 in)
5 years	53.7 mm (2.1 in)
10 years	62.4 mm (2.5 in)
25 years	72.9 mm (2.9 in)
50 years	80.4 mm (3.2 in)
100 years	87.5 mm (3.4 in)	Longer than the 50 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, 50 years of values from 1936 to 2025.

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: 73.0 mm (2.9 in) in 1976; 72.1 mm (2.8 in) in 1946; 72.0 mm (2.8 in) in 1983.

Download the Data

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

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

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