Mount Larcom Post Office Weather Records (ASN00039068)

Record envelope, standing records and threshold days for Mount Larcom Post Office (ASN00039068), Australia, with 115 years of record.

Key Facts for Mount Larcom Post Office

Mount Larcom Post Office (ASN00039068) is a weather station in Australia at -23.81 latitude and 150.98 longitude, 59 m (194 ft) above sea level.
The station reports from 1912 to 2026, 115 years of record.
0 records set at Mount Larcom Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mount Larcom Post Office set a daily record precipitation of 145.4 mm (5.7 in) on 10 March 2026.

About the Station

Location: Australia, -23.81 latitude, 150.98 longitude.
Elevation: 59 m (194 ft).
Period of record: 1912 to 2026, 115 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 Mount Larcom 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 Mount Larcom 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 Mount Larcom Post Office still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Mount Larcom Post Office between 12 February 1947 and 27 January 2013. Each dot is a new record.

When Mount Larcom Post Office set new all-time records
Date	Kind	Detail
1947-02-12	Record daily precipitation	Record daily precipitation 401.8 mm (15.8 in)
2013-01-27	Record daily precipitation	Record daily precipitation 422.0 mm (16.6 in)

Wettest Day of Each Month

Jan: 422.0 mm (16.6 in)

The wettest day on record for each calendar month at Mount Larcom Post Office. The most was 422.0 mm (16.6 in) on 27 January 2013.

Record daily precipitation for each month at Mount Larcom Post Office
Month	Record daily precipitation (mm)	Date
Jan	422.0 mm (16.6 in)	27 January 2013
Feb	401.8 mm (15.8 in)	12 February 1947
Mar	228.6 mm (9.0 in)	3 March 1949
Apr	121.9 mm (4.8 in)	22 April 1928
May	135.9 mm (5.4 in)	1 May 1948
Jun	100.3 mm (3.9 in)	19 June 1925
Jul	163.6 mm (6.4 in)	11 July 1933
Aug	75.0 mm (3.0 in)	23 August 1988
Sep	79.0 mm (3.1 in)	18 September 1917
Oct	159.0 mm (6.3 in)	31 October 2000
Nov	176.6 mm (7.0 in)	9 November 1999
Dec	256.8 mm (10.1 in)	19 December 1973

Latest Records

Latest records at Mount Larcom Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 March 2026	Mount Larcom Post Office, AU	daily rain	145.4 mm (5.7 in)	10.4 mm (0.4 in)	48 years	28 of 100 (Routine)
9 March 2026	Mount Larcom Post Office, AU	daily rain	79.2 mm (3.1 in)	18.0 mm (0.7 in)	64 years	36 of 100 (Notable)
30 May 2025	Mount Larcom Post Office, AU	daily rain	24.2 mm (1.0 in)	1.6 mm (0.06 in)	87 years	20 of 100 (Routine)
4 April 2025	Mount Larcom Post Office, AU	daily rain	62.1 mm (2.4 in)	25.7 mm (1.0 in)	35 years	37 of 100 (Notable)
30 October 2024	Mount Larcom Post Office, AU	daily rain	29.4 mm (1.2 in)	11.6 mm (0.5 in)	95 years	45 of 100 (Notable)
29 October 2024	Mount Larcom Post Office, AU	daily rain	15.9 mm (0.6 in)	1.3 mm (0.05 in)	25 years	17 of 100 (Routine)
10 October 2024	Mount Larcom Post Office, AU	daily rain	32.4 mm (1.3 in)	1.9 mm (0.07 in)	85 years	36 of 100 (Notable)
14 August 2024	Mount Larcom Post Office, AU	daily rain	48.0 mm (1.9 in)	28.2 mm (1.1 in)	53 years	50 of 100 (Notable)
25 October 2022	Mount Larcom Post Office, AU	daily rain	79.0 mm (3.1 in)	49.5 mm (1.9 in)	95 years	70 of 100 (Major)
19 October 2022	Mount Larcom Post Office, AU	daily rain	38.4 mm (1.5 in)	4.8 mm (0.19 in)	40 years	25 of 100 (Routine)
22 July 2022	Mount Larcom Post Office, AU	daily rain	50.4 mm (2.0 in)	27.0 mm (1.1 in)	65 years	43 of 100 (Notable)
12 November 2021	Mount Larcom Post Office, AU	daily rain	48.8 mm (1.9 in)	6.3 mm (0.25 in)	20 years	19 of 100 (Routine)
31 August 2021	Mount Larcom Post Office, AU	daily rain	29.0 mm (1.1 in)	16.6 mm (0.7 in)	15 years	29 of 100 (Routine)
8 April 2021	Mount Larcom Post Office, AU	daily rain	39.0 mm (1.5 in)	16.4 mm (0.6 in)	103 years	51 of 100 (Notable)
16 March 2021	Mount Larcom Post Office, AU	daily rain	49.6 mm (2.0 in)	3.4 mm (0.13 in)	68 years	31 of 100 (Routine)
6 March 2020	Mount Larcom Post Office, AU	daily rain	67.0 mm (2.6 in)	9.4 mm (0.37 in)	44 years	27 of 100 (Routine)
12 October 2019	Mount Larcom Post Office, AU	daily rain	31.5 mm (1.2 in)	0.7 mm (0.03 in)	8 years	12 of 100 (Routine)
2 October 2019	Mount Larcom Post Office, AU	daily rain	62.8 mm (2.5 in)	17.8 mm (0.7 in)	46 years	35 of 100 (Notable)
24 April 2019	Mount Larcom Post Office, AU	daily rain	24.5 mm (1.0 in)	8.9 mm (0.35 in)	44 years	20 of 100 (Routine)
1 November 2018	Mount Larcom Post Office, AU	daily rain	56.6 mm (2.2 in)	45.4 mm (1.8 in)	55 years	53 of 100 (Notable)

Extremes by Year

1912 to 2026

Yearly extremes at Mount Larcom Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	422.0 mm (16.6 in)	2013	94.6 mm (3.7 in)	115
Wettest five days (Rx5day)	825.8 mm (32.5 in)	2013	148.8 mm (5.9 in)	115
Longest dry spell (CDD)	133 days	1915	41 days	115

Wettest day (Rx1day)

The wettest day of the year at Mount Larcom Post Office, 1912 to 2026. The record is 422.0 mm (16.6 in) in 2013, marked on the chart; the median year is 94.6 mm (3.7 in).

Wettest day (Rx1day) at Mount Larcom Post Office by year
Year	Wettest day (Rx1day)
1912	43.9 mm (1.7 in)
1913	211.3 mm (8.3 in)
1914	88.9 mm (3.5 in)
1915	255.3 mm (10.1 in)
1916	80.0 mm (3.1 in)
1917	79.0 mm (3.1 in)
1918	228.6 mm (9.0 in)
1919	49.0 mm (1.9 in)
1920	102.9 mm (4.1 in)
1921	242.8 mm (9.6 in)
1922	127.8 mm (5.0 in)
1923	56.6 mm (2.2 in)
1924	100.8 mm (4.0 in)
1925	100.3 mm (3.9 in)
1926	64.8 mm (2.6 in)
1927	108.7 mm (4.3 in)
1928	121.9 mm (4.8 in)
1929	120.1 mm (4.7 in)
1930	161.8 mm (6.4 in)
1931	127.0 mm (5.0 in)
1932	57.4 mm (2.3 in)
1933	163.6 mm (6.4 in)
1934	172.7 mm (6.8 in)
1935	99.1 mm (3.9 in)
1936	59.9 mm (2.4 in)
1937	158.8 mm (6.3 in)
1938	58.9 mm (2.3 in)
1939	52.1 mm (2.1 in)
1940	167.6 mm (6.6 in)
1941	84.8 mm (3.3 in)
1942	171.5 mm (6.8 in)
1943	114.3 mm (4.5 in)
1944	63.5 mm (2.5 in)
1945	52.1 mm (2.1 in)
1946	47.0 mm (1.9 in)
1947	401.8 mm (15.8 in)
1948	135.9 mm (5.4 in)
1949	228.6 mm (9.0 in)
1950	127.8 mm (5.0 in)
1951	94.7 mm (3.7 in)
1952	84.1 mm (3.3 in)
1953	80.8 mm (3.2 in)
1954	81.5 mm (3.2 in)
1955	206.2 mm (8.1 in)
1956	181.4 mm (7.1 in)
1957	41.7 mm (1.6 in)
1958	56.9 mm (2.2 in)
1959	74.2 mm (2.9 in)
1960	65.0 mm (2.6 in)
1961	158.8 mm (6.3 in)
1962	100.1 mm (3.9 in)
1963	61.2 mm (2.4 in)
1964	78.5 mm (3.1 in)
1965	45.2 mm (1.8 in)
1966	57.2 mm (2.3 in)
1967	63.5 mm (2.5 in)
1968	98.8 mm (3.9 in)
1969	89.9 mm (3.5 in)
1970	58.9 mm (2.3 in)
1971	172.5 mm (6.8 in)
1972	70.1 mm (2.8 in)
1973	256.8 mm (10.1 in)
1974	112.5 mm (4.4 in)
1975	186.2 mm (7.3 in)
1976	94.6 mm (3.7 in)
1977	135.0 mm (5.3 in)
1978	252.2 mm (9.9 in)
1979	73.2 mm (2.9 in)
1980	116.4 mm (4.6 in)
1981	122.6 mm (4.8 in)
1982	80.2 mm (3.2 in)
1983	80.4 mm (3.2 in)
1984	43.6 mm (1.7 in)
1985	48.8 mm (1.9 in)
1986	138.5 mm (5.5 in)
1987	44.2 mm (1.7 in)
1988	78.6 mm (3.1 in)
1989	55.0 mm (2.2 in)
1990	154.2 mm (6.1 in)
1991	113.8 mm (4.5 in)
1992	68.8 mm (2.7 in)
1993	41.6 mm (1.6 in)
1994	113.2 mm (4.5 in)
1995	61.4 mm (2.4 in)
1996	74.6 mm (2.9 in)
1997	34.6 mm (1.4 in)
1998	88.6 mm (3.5 in)
1999	176.6 mm (7.0 in)
2000	159.0 mm (6.3 in)
2001	55.4 mm (2.2 in)
2002	55.0 mm (2.2 in)
2003	145.0 mm (5.7 in)
2004	54.0 mm (2.1 in)
2005	51.0 mm (2.0 in)
2006	36.8 mm (1.4 in)
2007	83.0 mm (3.3 in)
2008	74.0 mm (2.9 in)
2009	137.0 mm (5.4 in)
2010	208.6 mm (8.2 in)
2011	100.2 mm (3.9 in)
2012	135.4 mm (5.3 in)
2013	422.0 mm (16.6 in)
2014	217.6 mm (8.6 in)
2015	113.2 mm (4.5 in)
2016	133.2 mm (5.2 in)
2017	128.6 mm (5.1 in)
2018	56.6 mm (2.2 in)
2019	62.8 mm (2.5 in)
2020	135.0 mm (5.3 in)
2021	66.0 mm (2.6 in)
2022	96.0 mm (3.8 in)
2023	69.2 mm (2.7 in)
2024	48.0 mm (1.9 in)
2025	62.1 mm (2.4 in)
2026	145.4 mm (5.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mount Larcom Post Office, 1912 to 2026. The record is 825.8 mm (32.5 in) in 2013, marked on the chart; the median year is 148.8 mm (5.9 in).

Wettest five days (Rx5day) at Mount Larcom Post Office by year
Year	Wettest five days (Rx5day)
1912	89.9 mm (3.5 in)
1913	496.8 mm (19.6 in)
1914	180.3 mm (7.1 in)
1915	292.7 mm (11.5 in)
1916	101.6 mm (4.0 in)
1917	100.7 mm (4.0 in)
1918	360.4 mm (14.2 in)
1919	61.9 mm (2.4 in)
1920	145.6 mm (5.7 in)
1921	804.8 mm (31.7 in)
1922	727.9 mm (28.7 in)
1923	138.7 mm (5.5 in)
1924	128.5 mm (5.1 in)
1925	139.7 mm (5.5 in)
1926	99.6 mm (3.9 in)
1927	229.2 mm (9.0 in)
1928	378.9 mm (14.9 in)
1929	306.6 mm (12.1 in)
1930	301.7 mm (11.9 in)
1931	194.3 mm (7.6 in)
1932	115.6 mm (4.6 in)
1933	244.3 mm (9.6 in)
1934	285.7 mm (11.2 in)
1935	185.5 mm (7.3 in)
1936	97.3 mm (3.8 in)
1937	306.0 mm (12.0 in)
1938	128.7 mm (5.1 in)
1939	122.1 mm (4.8 in)
1940	207.7 mm (8.2 in)
1941	185.4 mm (7.3 in)
1942	479.8 mm (18.9 in)
1943	153.0 mm (6.0 in)
1944	157.2 mm (6.2 in)
1945	73.5 mm (2.9 in)
1946	79.0 mm (3.1 in)
1947	508.8 mm (20.0 in)
1948	189.3 mm (7.5 in)
1949	280.7 mm (11.1 in)
1950	180.1 mm (7.1 in)
1951	255.5 mm (10.1 in)
1952	114.7 mm (4.5 in)
1953	150.9 mm (5.9 in)
1954	204.2 mm (8.0 in)
1955	259.0 mm (10.2 in)
1956	367.3 mm (14.5 in)
1957	60.7 mm (2.4 in)
1958	123.7 mm (4.9 in)
1959	103.5 mm (4.1 in)
1960	116.8 mm (4.6 in)
1961	203.0 mm (8.0 in)
1962	246.1 mm (9.7 in)
1963	112.0 mm (4.4 in)
1964	101.6 mm (4.0 in)
1965	94.5 mm (3.7 in)
1966	91.6 mm (3.6 in)
1967	121.4 mm (4.8 in)
1968	213.9 mm (8.4 in)
1969	148.8 mm (5.9 in)
1970	107.7 mm (4.2 in)
1971	274.2 mm (10.8 in)
1972	114.6 mm (4.5 in)
1973	550.9 mm (21.7 in)
1974	186.6 mm (7.3 in)
1975	282.0 mm (11.1 in)
1976	161.0 mm (6.3 in)
1977	305.2 mm (12.0 in)
1978	362.4 mm (14.3 in)
1979	114.8 mm (4.5 in)
1980	178.9 mm (7.0 in)
1981	187.0 mm (7.4 in)
1982	97.6 mm (3.8 in)
1983	136.6 mm (5.4 in)
1984	102.2 mm (4.0 in)
1985	126.2 mm (5.0 in)
1986	202.6 mm (8.0 in)
1987	56.1 mm (2.2 in)
1988	83.0 mm (3.3 in)
1989	98.4 mm (3.9 in)
1990	233.6 mm (9.2 in)
1991	61.8 mm (2.4 in)
1992	78.6 mm (3.1 in)
1993	58.2 mm (2.3 in)
1994	135.4 mm (5.3 in)
1995	67.4 mm (2.7 in)
1996	110.1 mm (4.3 in)
1997	44.4 mm (1.7 in)
1998	112.4 mm (4.4 in)
1999	183.5 mm (7.2 in)
2000	174.8 mm (6.9 in)
2001	91.6 mm (3.6 in)
2002	96.8 mm (3.8 in)
2003	394.0 mm (15.5 in)
2004	118.0 mm (4.6 in)
2005	54.3 mm (2.1 in)
2006	60.2 mm (2.4 in)
2007	113.6 mm (4.5 in)
2008	187.1 mm (7.4 in)
2009	175.7 mm (6.9 in)
2010	389.2 mm (15.3 in)
2011	105.6 mm (4.2 in)
2012	184.6 mm (7.3 in)
2013	825.8 mm (32.5 in)
2014	355.2 mm (14.0 in)
2015	142.8 mm (5.6 in)
2016	188.3 mm (7.4 in)
2017	220.4 mm (8.7 in)
2018	67.3 mm (2.6 in)
2019	62.8 mm (2.5 in)
2020	139.0 mm (5.5 in)
2021	150.4 mm (5.9 in)
2022	112.6 mm (4.4 in)
2023	34.4 mm (1.4 in)
2024	49.0 mm (1.9 in)
2025	150.4 mm (5.9 in)
2026	225.0 mm (8.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mount Larcom Post Office, 1912 to 2026. The record is 133 days in 1915, marked on the chart; the median year is 41 days.

Longest dry spell (CDD) at Mount Larcom Post Office by year
Year	Longest dry spell (CDD)
1912	43 days
1913	64 days
1914	43 days
1915	133 days
1916	53 days
1917	43 days
1918	70 days
1919	55 days
1920	30 days
1921	39 days
1922	82 days
1923	58 days
1924	38 days
1925	52 days
1926	65 days
1927	41 days
1928	85 days
1929	50 days
1930	35 days
1931	45 days
1932	60 days
1933	39 days
1934	27 days
1935	31 days
1936	32 days
1937	44 days
1938	32 days
1939	60 days
1940	47 days
1941	52 days
1942	41 days
1943	60 days
1944	31 days
1945	42 days
1946	105 days
1947	81 days
1948	69 days
1949	68 days
1950	49 days
1951	56 days
1952	37 days
1953	56 days
1954	45 days
1955	33 days
1956	24 days
1957	47 days
1958	20 days
1959	55 days
1960	53 days
1961	51 days
1962	27 days
1963	65 days
1964	35 days
1965	37 days
1966	33 days
1967	39 days
1968	28 days
1969	29 days
1970	56 days
1971	26 days
1972	32 days
1973	22 days
1974	81 days
1975	40 days
1976	36 days
1977	48 days
1978	29 days
1979	34 days
1980	52 days
1981	38 days
1982	71 days
1983	26 days
1984	44 days
1985	36 days
1986	27 days
1987	25 days
1988	24 days
1989	26 days
1990	54 days
1991	80 days
1992	27 days
1993	53 days
1994	58 days
1995	30 days
1996	29 days
1997	38 days
1998	42 days
1999	33 days
2000	65 days
2001	34 days
2002	72 days
2003	38 days
2004	90 days
2005	35 days
2006	59 days
2007	53 days
2008	34 days
2009	59 days
2010	15 days
2011	41 days
2012	32 days
2013	40 days
2014	21 days
2015	30 days
2016	29 days
2017	55 days
2018	50 days
2019	88 days
2020	26 days
2021	28 days
2022	25 days
2023	39 days
2024	54 days
2025	33 days
2026	45 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

97 years, 1913 to 2025

A day with at least 93.3 mm (3.7 in) of rain is expected about once in 2 years. A day with at least 354.0 mm (13.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Mount Larcom 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	93.3 mm (3.7 in)
5 years	145.8 mm (5.7 in)
10 years	186.6 mm (7.3 in)
25 years	246.2 mm (9.7 in)
50 years	297.1 mm (11.7 in)
100 years	354.0 mm (13.9 in)	Longer than the 97 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, 97 years of values from 1913 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: 401.8 mm (15.8 in) in 1947; 256.8 mm (10.1 in) in 1973; 255.3 mm (10.1 in) in 1915.

Download the Data

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