Grassmere Weather Records (ASN00009551)

Record envelope, standing records and threshold days for Grassmere (ASN00009551), Australia, with 110 years of record.

Key Facts for Grassmere

Grassmere (ASN00009551) is a weather station in Australia at -35.02 latitude and 117.76 longitude, 10 m (33 ft) above sea level.
The station reports from 1907 to 2016, 110 years of record.
0 records set at Grassmere still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Grassmere set a daily record precipitation of 22.0 mm (0.9 in) on 16 March 2016.

About the Station

Location: Australia, -35.02 latitude, 117.76 longitude.
Elevation: 10 m (33 ft).
Period of record: 1907 to 2016, 110 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 Grassmere. 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 Grassmere, 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 Grassmere still stand.

Wettest Day of Each Month

May: 151.1 mm (5.9 in)

The wettest day on record for each calendar month at Grassmere. The most was 151.1 mm (5.9 in) on 6 May 1921.

Record daily precipitation for each month at Grassmere
Month	Record daily precipitation (mm)	Date
Jan	75.7 mm (3.0 in)	21 January 1939
Feb	52.1 mm (2.1 in)	17 February 1955
Mar	66.3 mm (2.6 in)	10 March 1917
Apr	112.0 mm (4.4 in)	2 April 2005
May	151.1 mm (5.9 in)	6 May 1921
Jun	70.0 mm (2.8 in)	25 June 1988
Jul	77.2 mm (3.0 in)	25 July 1931
Aug	64.0 mm (2.5 in)	5 August 1979
Sep	66.8 mm (2.6 in)	20 September 1927
Oct	67.3 mm (2.6 in)	21 October 1949
Nov	46.5 mm (1.8 in)	5 November 1929
Dec	78.4 mm (3.1 in)	12 December 1996

Latest Records

Latest records at Grassmere
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 March 2016	Grassmere, AU	daily rain	22.0 mm (0.9 in)	11.0 mm (0.4 in)	3 years	20 of 100 (Routine)
29 April 2014	Grassmere, AU	daily rain (Tie)	32.0 mm (1.3 in)	tie	92 years	9 of 100 (Routine)
20 December 2013	Grassmere, AU	daily rain	38.2 mm (1.5 in)	13.1 mm (0.5 in)	48 years	45 of 100 (Notable)
16 March 2013	Grassmere, AU	daily rain	11.0 mm (0.4 in)	0.6 mm (0.02 in)	59 years	20 of 100 (Routine)
11 March 2013	Grassmere, AU	daily rain	27.0 mm (1.1 in)	3.0 mm (0.12 in)	15 years	18 of 100 (Routine)
6 December 2012	Grassmere, AU	daily rain	33.2 mm (1.3 in)	5.0 mm (0.20 in)	104 years	48 of 100 (Notable)
29 November 2012	Grassmere, AU	daily rain	11.8 mm (0.5 in)	3.4 mm (0.13 in)	62 years	20 of 100 (Routine)
27 September 2012	Grassmere, AU	daily rain	23.0 mm (0.9 in)	3.4 mm (0.13 in)	86 years	20 of 100 (Routine)
22 September 2012	Grassmere, AU	daily rain	30.4 mm (1.2 in)	0.6 mm (0.02 in)	27 years	18 of 100 (Routine)
13 June 2012	Grassmere, AU	daily rain	30.2 mm (1.2 in)	2.8 mm (0.11 in)	94 years	41 of 100 (Notable)
2 June 2012	Grassmere, AU	daily rain	58.8 mm (2.3 in)	15.4 mm (0.6 in)	18 years	33 of 100 (Routine)
8 December 2011	Grassmere, AU	daily rain	22.4 mm (0.9 in)	9.4 mm (0.37 in)	89 years	20 of 100 (Routine)
4 November 2011	Grassmere, AU	daily rain	37.4 mm (1.5 in)	20.1 mm (0.8 in)	41 years	59 of 100 (Notable)
16 August 2011	Grassmere, AU	daily rain	39.2 mm (1.5 in)	0.8 mm (0.03 in)	101 years	41 of 100 (Notable)
8 April 2011	Grassmere, AU	daily rain	16.6 mm (0.7 in)	1.6 mm (0.06 in)	64 years	20 of 100 (Routine)
24 January 2011	Grassmere, AU	daily rain	19.0 mm (0.7 in)	7.4 mm (0.29 in)	11 years	20 of 100 (Routine)
6 January 2011	Grassmere, AU	daily rain	26.5 mm (1.0 in)	15.5 mm (0.6 in)	21 years	37 of 100 (Notable)
3 December 2010	Grassmere, AU	daily rain	16.4 mm (0.6 in)	4.6 mm (0.18 in)	12 years	20 of 100 (Routine)
22 August 2010	Grassmere, AU	daily rain	26.2 mm (1.0 in)	0.2 mm (0.01 in)	36 years	20 of 100 (Routine)
18 August 2010	Grassmere, AU	daily rain	22.4 mm (0.9 in)	2.3 mm (0.09 in)	47 years	20 of 100 (Routine)

Extremes by Year

1907 to 2016

Yearly extremes at Grassmere: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	151.1 mm (5.9 in)	1921	44.7 mm (1.8 in)	110
Wettest five days (Rx5day)	248.2 mm (9.8 in)	1963	83.1 mm (3.3 in)	110
Longest dry spell (CDD)	48 days	2012	20 days	110

Wettest day (Rx1day)

The wettest day of the year at Grassmere, 1907 to 2016. The record is 151.1 mm (5.9 in) in 1921, marked on the chart; the median year is 44.7 mm (1.8 in).

Wettest day (Rx1day) at Grassmere by year
Year	Wettest day (Rx1day)
1907	38.1 mm (1.5 in)
1908	33.5 mm (1.3 in)
1909	41.4 mm (1.6 in)
1910	55.1 mm (2.2 in)
1911	48.3 mm (1.9 in)
1912	39.1 mm (1.5 in)
1913	77.0 mm (3.0 in)
1914	29.7 mm (1.2 in)
1915	35.6 mm (1.4 in)
1916	40.1 mm (1.6 in)
1917	66.3 mm (2.6 in)
1918	58.4 mm (2.3 in)
1919	81.0 mm (3.2 in)
1920	66.5 mm (2.6 in)
1921	151.1 mm (5.9 in)
1922	53.3 mm (2.1 in)
1923	43.2 mm (1.7 in)
1924	43.7 mm (1.7 in)
1925	55.4 mm (2.2 in)
1926	38.1 mm (1.5 in)
1927	66.8 mm (2.6 in)
1928	60.5 mm (2.4 in)
1929	46.5 mm (1.8 in)
1930	48.3 mm (1.9 in)
1931	77.2 mm (3.0 in)
1932	41.1 mm (1.6 in)
1933	38.1 mm (1.5 in)
1934	56.1 mm (2.2 in)
1935	27.2 mm (1.1 in)
1936	43.9 mm (1.7 in)
1937	52.3 mm (2.1 in)
1938	73.7 mm (2.9 in)
1939	75.7 mm (3.0 in)
1940	21.8 mm (0.9 in)
1941	58.4 mm (2.3 in)
1942	55.9 mm (2.2 in)
1943	32.0 mm (1.3 in)
1944	30.7 mm (1.2 in)
1945	41.7 mm (1.6 in)
1946	52.6 mm (2.1 in)
1947	52.3 mm (2.1 in)
1948	43.7 mm (1.7 in)
1949	67.3 mm (2.6 in)
1950	38.1 mm (1.5 in)
1951	61.7 mm (2.4 in)
1952	38.9 mm (1.5 in)
1953	30.2 mm (1.2 in)
1954	29.2 mm (1.1 in)
1955	52.1 mm (2.1 in)
1956	49.0 mm (1.9 in)
1957	38.1 mm (1.5 in)
1958	38.6 mm (1.5 in)
1959	51.3 mm (2.0 in)
1960	35.6 mm (1.4 in)
1961	57.7 mm (2.3 in)
1962	31.5 mm (1.2 in)
1963	80.5 mm (3.2 in)
1964	74.7 mm (2.9 in)
1965	36.8 mm (1.4 in)
1966	54.4 mm (2.1 in)
1967	49.3 mm (1.9 in)
1968	29.5 mm (1.2 in)
1969	28.7 mm (1.1 in)
1970	55.4 mm (2.2 in)
1971	46.2 mm (1.8 in)
1972	50.8 mm (2.0 in)
1973	54.9 mm (2.2 in)
1974	28.2 mm (1.1 in)
1975	49.0 mm (1.9 in)
1976	48.0 mm (1.9 in)
1977	24.2 mm (1.0 in)
1978	39.6 mm (1.6 in)
1979	64.0 mm (2.5 in)
1980	27.2 mm (1.1 in)
1981	49.8 mm (2.0 in)
1982	75.4 mm (3.0 in)
1983	26.0 mm (1.0 in)
1984	27.4 mm (1.1 in)
1985	42.2 mm (1.7 in)
1986	33.0 mm (1.3 in)
1987	63.0 mm (2.5 in)
1988	70.0 mm (2.8 in)
1989	59.4 mm (2.3 in)
1990	42.6 mm (1.7 in)
1991	59.3 mm (2.3 in)
1992	63.4 mm (2.5 in)
1993	44.1 mm (1.7 in)
1994	47.3 mm (1.9 in)
1995	35.0 mm (1.4 in)
1996	78.4 mm (3.1 in)
1997	36.2 mm (1.4 in)
1998	41.4 mm (1.6 in)
1999	32.4 mm (1.3 in)
2000	56.0 mm (2.2 in)
2001	37.0 mm (1.5 in)
2002	47.4 mm (1.9 in)
2003	24.4 mm (1.0 in)
2004	31.0 mm (1.2 in)
2005	112.0 mm (4.4 in)
2006	41.5 mm (1.6 in)
2007	52.6 mm (2.1 in)
2008	42.2 mm (1.7 in)
2009	45.2 mm (1.8 in)
2010	26.2 mm (1.0 in)
2011	39.2 mm (1.5 in)
2012	58.8 mm (2.3 in)
2013	38.2 mm (1.5 in)
2014	33.4 mm (1.3 in)
2015	24.2 mm (1.0 in)
2016	32.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grassmere, 1907 to 2016. The record is 248.2 mm (9.8 in) in 1963, marked on the chart; the median year is 83.1 mm (3.3 in).

Wettest five days (Rx5day) at Grassmere by year
Year	Wettest five days (Rx5day)
1907	78.7 mm (3.1 in)
1908	63.9 mm (2.5 in)
1909	75.3 mm (3.0 in)
1910	113.1 mm (4.5 in)
1911	91.7 mm (3.6 in)
1912	93.2 mm (3.7 in)
1913	196.9 mm (7.8 in)
1914	55.1 mm (2.2 in)
1915	93.2 mm (3.7 in)
1916	111.5 mm (4.4 in)
1917	107.4 mm (4.2 in)
1918	101.6 mm (4.0 in)
1919	127.0 mm (5.0 in)
1920	168.1 mm (6.6 in)
1921	168.1 mm (6.6 in)
1922	104.8 mm (4.1 in)
1923	100.1 mm (3.9 in)
1924	72.3 mm (2.8 in)
1925	62.4 mm (2.5 in)
1926	79.8 mm (3.1 in)
1927	118.2 mm (4.7 in)
1928	138.8 mm (5.5 in)
1929	83.5 mm (3.3 in)
1930	86.4 mm (3.4 in)
1931	132.4 mm (5.2 in)
1932	83.7 mm (3.3 in)
1933	101.4 mm (4.0 in)
1934	96.8 mm (3.8 in)
1935	57.4 mm (2.3 in)
1936	67.6 mm (2.7 in)
1937	69.3 mm (2.7 in)
1938	120.5 mm (4.7 in)
1939	228.4 mm (9.0 in)
1940	45.5 mm (1.8 in)
1941	70.3 mm (2.8 in)
1942	73.0 mm (2.9 in)
1943	87.9 mm (3.5 in)
1944	56.8 mm (2.2 in)
1945	74.0 mm (2.9 in)
1946	92.5 mm (3.6 in)
1947	78.2 mm (3.1 in)
1948	63.3 mm (2.5 in)
1949	73.7 mm (2.9 in)
1950	78.8 mm (3.1 in)
1951	109.3 mm (4.3 in)
1952	78.5 mm (3.1 in)
1953	51.8 mm (2.0 in)
1954	69.0 mm (2.7 in)
1955	97.5 mm (3.8 in)
1956	84.9 mm (3.3 in)
1957	57.1 mm (2.2 in)
1958	60.0 mm (2.4 in)
1959	86.8 mm (3.4 in)
1960	81.1 mm (3.2 in)
1961	87.1 mm (3.4 in)
1962	68.1 mm (2.7 in)
1963	248.2 mm (9.8 in)
1964	140.0 mm (5.5 in)
1965	89.1 mm (3.5 in)
1966	99.3 mm (3.9 in)
1967	95.1 mm (3.7 in)
1968	72.2 mm (2.8 in)
1969	55.9 mm (2.2 in)
1970	124.7 mm (4.9 in)
1971	85.6 mm (3.4 in)
1972	78.0 mm (3.1 in)
1973	72.4 mm (2.9 in)
1974	53.7 mm (2.1 in)
1975	75.7 mm (3.0 in)
1976	97.4 mm (3.8 in)
1977	66.2 mm (2.6 in)
1978	69.0 mm (2.7 in)
1979	121.6 mm (4.8 in)
1980	53.6 mm (2.1 in)
1981	135.0 mm (5.3 in)
1982	102.6 mm (4.0 in)
1983	62.4 mm (2.5 in)
1984	48.0 mm (1.9 in)
1985	73.2 mm (2.9 in)
1986	70.0 mm (2.8 in)
1987	90.8 mm (3.6 in)
1988	113.0 mm (4.4 in)
1989	89.0 mm (3.5 in)
1990	84.2 mm (3.3 in)
1991	159.3 mm (6.3 in)
1992	117.9 mm (4.6 in)
1993	82.7 mm (3.3 in)
1994	110.7 mm (4.4 in)
1995	60.5 mm (2.4 in)
1996	92.0 mm (3.6 in)
1997	65.0 mm (2.6 in)
1998	60.8 mm (2.4 in)
1999	61.0 mm (2.4 in)
2000	66.2 mm (2.6 in)
2001	77.6 mm (3.1 in)
2002	58.4 mm (2.3 in)
2003	42.6 mm (1.7 in)
2004	48.5 mm (1.9 in)
2005	218.5 mm (8.6 in)
2006	72.6 mm (2.9 in)
2007	94.4 mm (3.7 in)
2008	97.8 mm (3.9 in)
2009	92.0 mm (3.6 in)
2010	60.8 mm (2.4 in)
2011	91.4 mm (3.6 in)
2012	89.6 mm (3.5 in)
2013	55.2 mm (2.2 in)
2014	43.2 mm (1.7 in)
2015	39.2 mm (1.5 in)
2016	57.0 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grassmere, 1907 to 2016. The record is 48 days in 2012, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Grassmere by year
Year	Longest dry spell (CDD)
1907	36 days
1908	15 days
1909	23 days
1910	17 days
1911	25 days
1912	18 days
1913	18 days
1914	25 days
1915	28 days
1916	14 days
1917	11 days
1918	18 days
1919	20 days
1920	20 days
1921	18 days
1922	22 days
1923	28 days
1924	20 days
1925	18 days
1926	18 days
1927	18 days
1928	19 days
1929	15 days
1930	27 days
1931	31 days
1932	26 days
1933	15 days
1934	21 days
1935	17 days
1936	23 days
1937	11 days
1938	22 days
1939	24 days
1940	36 days
1941	17 days
1942	25 days
1943	20 days
1944	12 days
1945	14 days
1946	16 days
1947	24 days
1948	24 days
1949	21 days
1950	36 days
1951	29 days
1952	23 days
1953	24 days
1954	30 days
1955	13 days
1956	39 days
1957	29 days
1958	23 days
1959	12 days
1960	15 days
1961	19 days
1962	18 days
1963	15 days
1964	22 days
1965	13 days
1966	14 days
1967	18 days
1968	17 days
1969	22 days
1970	15 days
1971	14 days
1972	21 days
1973	25 days
1974	26 days
1975	30 days
1976	21 days
1977	24 days
1978	18 days
1979	32 days
1980	20 days
1981	25 days
1982	20 days
1983	24 days
1984	31 days
1985	18 days
1986	24 days
1987	17 days
1988	33 days
1989	20 days
1990	14 days
1991	38 days
1992	15 days
1993	19 days
1994	38 days
1995	21 days
1996	23 days
1997	17 days
1998	31 days
1999	14 days
2000	11 days
2001	18 days
2002	24 days
2003	15 days
2004	18 days
2005	20 days
2006	26 days
2007	18 days
2008	14 days
2009	21 days
2010	20 days
2011	17 days
2012	48 days
2013	18 days
2014	34 days
2015	24 days
2016	20 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

102 years, 1907 to 2014

A day with at least 45.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 103.1 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Grassmere: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	45.7 mm (1.8 in)
5 years	60.7 mm (2.4 in)
10 years	70.8 mm (2.8 in)
25 years	83.7 mm (3.3 in)
50 years	93.4 mm (3.7 in)
100 years	103.1 mm (4.1 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1907 to 2014.

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: 151.1 mm (5.9 in) in 1921; 81.0 mm (3.2 in) in 1919; 80.5 mm (3.2 in) in 1963.

Download the Data

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