Grass Valley Weather Records (ASN00010150)

Record envelope, standing records and threshold days for Grass Valley (ASN00010150), Australia, with 136 years of record.

Key Facts for Grass Valley

Grass Valley (ASN00010150) is a weather station in Australia at -31.64 latitude and 116.80 longitude, 200 m (656 ft) above sea level.
The station reports from 1891 to 2026, 136 years of record.
0 records set at Grass Valley still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Grass Valley set a daily record precipitation of 24.0 mm (0.9 in) on 27 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Australia, -31.64 latitude, 116.80 longitude.
Elevation: 200 m (656 ft).
Period of record: 1891 to 2026, 136 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 Grass Valley. 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 Grass Valley, 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 Grass Valley still stand.

Wettest Day of Each Month

Mar: 109.2 mm (4.3 in)

The wettest day on record for each calendar month at Grass Valley. The most was 109.2 mm (4.3 in) on 9 March 1934.

Record daily precipitation for each month at Grass Valley
Month	Record daily precipitation (mm)	Date
Jan	95.4 mm (3.8 in)	28 January 1990
Feb	97.8 mm (3.9 in)	16 February 1955
Mar	109.2 mm (4.3 in)	9 March 1934
Apr	59.0 mm (2.3 in)	4 April 1974
May	62.2 mm (2.4 in)	19 May 1908
Jun	57.4 mm (2.3 in)	7 June 1918
Jul	53.8 mm (2.1 in)	27 July 1967
Aug	48.3 mm (1.9 in)	6 August 1917
Sep	30.5 mm (1.2 in)	18 September 1922
Oct	44.2 mm (1.7 in)	18 October 1995
Nov	52.6 mm (2.1 in)	22 November 1920
Dec	54.1 mm (2.1 in)	18 December 1952

Latest Records

Latest records at Grass Valley
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 August 2026	Grass Valley, AU	daily rain (Provisional)	24.0 mm (0.9 in)	10.5 mm (0.4 in)	107 years	20 of 100 (Routine)
28 March 2026	Grass Valley, AU	daily rain	37.0 mm (1.5 in)	6.5 mm (0.26 in)	55 years	31 of 100 (Routine)
21 November 2024	Grass Valley, AU	daily rain	27.0 mm (1.1 in)	24.0 mm (0.9 in)	5 years	48 of 100 (Notable)
9 November 2024	Grass Valley, AU	daily rain	16.0 mm (0.6 in)	0.8 mm (0.03 in)	116 years	20 of 100 (Routine)
7 August 2024	Grass Valley, AU	daily rain	19.5 mm (0.8 in)	4.3 mm (0.17 in)	72 years	20 of 100 (Routine)
1 June 2023	Grass Valley, AU	daily rain	28.8 mm (1.1 in)	9.5 mm (0.37 in)	64 years	42 of 100 (Notable)
30 March 2023	Grass Valley, AU	daily rain	30.0 mm (1.2 in)	6.4 mm (0.25 in)	25 years	22 of 100 (Routine)
2 October 2022	Grass Valley, AU	daily rain	20.0 mm (0.8 in)	9.6 mm (0.38 in)	68 years	20 of 100 (Routine)
16 August 2022	Grass Valley, AU	daily rain	20.0 mm (0.8 in)	3.7 mm (0.15 in)	112 years	20 of 100 (Routine)
20 October 2021	Grass Valley, AU	daily rain	19.1 mm (0.8 in)	10.5 mm (0.4 in)	88 years	20 of 100 (Routine)
7 July 2021	Grass Valley, AU	daily rain	20.0 mm (0.8 in)	5.8 mm (0.23 in)	108 years	20 of 100 (Routine)
5 May 2021	Grass Valley, AU	daily rain	43.0 mm (1.7 in)	6.7 mm (0.26 in)	82 years	42 of 100 (Notable)
4 March 2021	Grass Valley, AU	daily rain	59.0 mm (2.3 in)	32.8 mm (1.3 in)	36 years	49 of 100 (Notable)
10 November 2020	Grass Valley, AU	daily rain	13.0 mm (0.5 in)	3.6 mm (0.14 in)	81 years	20 of 100 (Routine)
29 February 2020	Grass Valley, AU	daily rain	2.0 mm (0.08 in)	1.0 mm (0.04 in)	44 years	20 of 100 (Routine)
27 February 2020	Grass Valley, AU	daily rain	14.5 mm (0.6 in)	5.5 mm (0.22 in)	12 years	16 of 100 (Routine)
21 November 2019	Grass Valley, AU	daily rain	3.0 mm (0.12 in)	0.2 mm (0.01 in)	104 years	20 of 100 (Routine)
5 July 2019	Grass Valley, AU	daily rain	32.0 mm (1.3 in)	14.0 mm (0.6 in)	20 years	37 of 100 (Notable)
15 October 2018	Grass Valley, AU	daily rain	27.6 mm (1.1 in)	19.2 mm (0.8 in)	43 years	57 of 100 (Notable)
3 July 2018	Grass Valley, AU	daily rain	33.5 mm (1.3 in)	13.7 mm (0.5 in)	21 years	36 of 100 (Notable)

Extremes by Year

1891 to 2026

Yearly extremes at Grass Valley: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	109.2 mm (4.3 in)	1934	31.0 mm (1.2 in)	131
Wettest five days (Rx5day)	147.9 mm (5.8 in)	1955	49.2 mm (1.9 in)	131
Longest dry spell (CDD)	150 days	1959	52 days	131

Wettest day (Rx1day)

The wettest day of the year at Grass Valley, 1891 to 2026. The record is 109.2 mm (4.3 in) in 1934, marked on the chart; the median year is 31.0 mm (1.2 in).

Wettest day (Rx1day) at Grass Valley by year
Year	Wettest day (Rx1day)
1891	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1900	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	31.0 mm (1.2 in)
1908	62.2 mm (2.4 in)
1909	25.7 mm (1.0 in)
1910	26.2 mm (1.0 in)
1911	20.3 mm (0.8 in)
1912	43.9 mm (1.7 in)
1913	27.9 mm (1.1 in)
1914	25.1 mm (1.0 in)
1915	36.3 mm (1.4 in)
1916	42.2 mm (1.7 in)
1917	48.3 mm (1.9 in)
1918	57.4 mm (2.3 in)
1919	21.6 mm (0.9 in)
1920	52.6 mm (2.1 in)
1921	24.1 mm (0.9 in)
1922	30.5 mm (1.2 in)
1923	33.3 mm (1.3 in)
1924	25.4 mm (1.0 in)
1925	46.7 mm (1.8 in)
1926	34.5 mm (1.4 in)
1927	34.3 mm (1.4 in)
1928	38.6 mm (1.5 in)
1930	7.6 mm (0.30 in)
1931	27.9 mm (1.1 in)
1932	46.5 mm (1.8 in)
1933	48.3 mm (1.9 in)
1934	109.2 mm (4.3 in)
1935	31.8 mm (1.3 in)
1936	33.0 mm (1.3 in)
1937	48.8 mm (1.9 in)
1938	31.0 mm (1.2 in)
1939	38.4 mm (1.5 in)
1940	29.0 mm (1.1 in)
1941	26.7 mm (1.1 in)
1942	52.1 mm (2.1 in)
1943	27.2 mm (1.1 in)
1944	38.1 mm (1.5 in)
1945	53.3 mm (2.1 in)
1946	34.0 mm (1.3 in)
1947	95.8 mm (3.8 in)
1948	31.8 mm (1.3 in)
1949	18.3 mm (0.7 in)
1950	52.6 mm (2.1 in)
1951	35.8 mm (1.4 in)
1952	54.1 mm (2.1 in)
1953	52.3 mm (2.1 in)
1954	21.6 mm (0.9 in)
1955	97.8 mm (3.9 in)
1956	27.4 mm (1.1 in)
1957	19.3 mm (0.8 in)
1958	25.4 mm (1.0 in)
1959	33.0 mm (1.3 in)
1960	31.8 mm (1.3 in)
1961	31.0 mm (1.2 in)
1962	27.2 mm (1.1 in)
1963	24.9 mm (1.0 in)
1964	33.0 mm (1.3 in)
1965	49.0 mm (1.9 in)
1966	30.0 mm (1.2 in)
1967	57.2 mm (2.3 in)
1968	48.8 mm (1.9 in)
1969	26.9 mm (1.1 in)
1970	48.0 mm (1.9 in)
1971	30.5 mm (1.2 in)
1972	25.7 mm (1.0 in)
1973	37.6 mm (1.5 in)
1974	59.0 mm (2.3 in)
1975	27.4 mm (1.1 in)
1976	37.8 mm (1.5 in)
1977	33.8 mm (1.3 in)
1978	26.8 mm (1.1 in)
1979	31.8 mm (1.3 in)
1980	21.0 mm (0.8 in)
1981	51.0 mm (2.0 in)
1982	40.8 mm (1.6 in)
1983	38.6 mm (1.5 in)
1984	26.2 mm (1.0 in)
1985	20.0 mm (0.8 in)
1986	50.8 mm (2.0 in)
1987	32.8 mm (1.3 in)
1988	40.2 mm (1.6 in)
1989	28.8 mm (1.1 in)
1990	95.4 mm (3.8 in)
1991	31.8 mm (1.3 in)
1992	28.4 mm (1.1 in)
1993	19.0 mm (0.7 in)
1994	20.6 mm (0.8 in)
1995	44.2 mm (1.7 in)
1996	31.4 mm (1.2 in)
1997	26.0 mm (1.0 in)
1998	17.8 mm (0.7 in)
1999	38.2 mm (1.5 in)
2000	60.8 mm (2.4 in)
2001	40.8 mm (1.6 in)
2002	19.0 mm (0.7 in)
2003	22.4 mm (0.9 in)
2004	17.0 mm (0.7 in)
2005	18.0 mm (0.7 in)
2006	27.0 mm (1.1 in)
2007	18.3 mm (0.7 in)
2008	56.0 mm (2.2 in)
2009	15.0 mm (0.6 in)
2010	18.0 mm (0.7 in)
2011	41.0 mm (1.6 in)
2012	25.0 mm (1.0 in)
2013	40.0 mm (1.6 in)
2014	35.2 mm (1.4 in)
2015	30.0 mm (1.2 in)
2016	31.0 mm (1.2 in)
2017	68.0 mm (2.7 in)
2018	55.0 mm (2.2 in)
2019	32.0 mm (1.3 in)
2020	14.5 mm (0.6 in)
2021	59.0 mm (2.3 in)
2022	20.0 mm (0.8 in)
2023	30.0 mm (1.2 in)
2024	27.0 mm (1.1 in)
2025	24.0 mm (0.9 in)
2026	37.0 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grass Valley, 1891 to 2026. The record is 147.9 mm (5.8 in) in 1955, marked on the chart; the median year is 49.2 mm (1.9 in).

Wettest five days (Rx5day) at Grass Valley by year
Year	Wettest five days (Rx5day)
1891	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1900	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1902	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	64.5 mm (2.5 in)
1908	69.8 mm (2.7 in)
1909	65.6 mm (2.6 in)
1910	91.0 mm (3.6 in)
1911	43.4 mm (1.7 in)
1912	79.2 mm (3.1 in)
1913	41.2 mm (1.6 in)
1914	36.2 mm (1.4 in)
1915	75.1 mm (3.0 in)
1916	69.1 mm (2.7 in)
1917	66.9 mm (2.6 in)
1918	74.1 mm (2.9 in)
1919	35.1 mm (1.4 in)
1920	67.1 mm (2.6 in)
1921	36.9 mm (1.5 in)
1922	54.1 mm (2.1 in)
1923	68.5 mm (2.7 in)
1924	40.2 mm (1.6 in)
1925	65.2 mm (2.6 in)
1926	59.5 mm (2.3 in)
1927	46.0 mm (1.8 in)
1928	76.0 mm (3.0 in)
1930	12.0 mm (0.5 in)
1931	57.4 mm (2.3 in)
1932	65.3 mm (2.6 in)
1933	78.8 mm (3.1 in)
1934	133.6 mm (5.3 in)
1935	52.6 mm (2.1 in)
1936	39.6 mm (1.6 in)
1937	68.6 mm (2.7 in)
1938	75.0 mm (3.0 in)
1939	80.0 mm (3.1 in)
1940	43.5 mm (1.7 in)
1941	34.3 mm (1.4 in)
1942	81.1 mm (3.2 in)
1943	50.2 mm (2.0 in)
1944	41.4 mm (1.6 in)
1945	91.3 mm (3.6 in)
1946	48.5 mm (1.9 in)
1947	95.8 mm (3.8 in)
1948	58.4 mm (2.3 in)
1949	25.4 mm (1.0 in)
1950	66.6 mm (2.6 in)
1951	45.5 mm (1.8 in)
1952	76.2 mm (3.0 in)
1953	71.2 mm (2.8 in)
1954	33.8 mm (1.3 in)
1955	147.9 mm (5.8 in)
1956	63.2 mm (2.5 in)
1957	51.1 mm (2.0 in)
1958	54.8 mm (2.2 in)
1959	52.5 mm (2.1 in)
1960	69.9 mm (2.8 in)
1961	51.6 mm (2.0 in)
1962	71.3 mm (2.8 in)
1963	55.7 mm (2.2 in)
1964	55.7 mm (2.2 in)
1965	68.8 mm (2.7 in)
1966	43.4 mm (1.7 in)
1967	76.8 mm (3.0 in)
1968	60.5 mm (2.4 in)
1969	30.2 mm (1.2 in)
1970	68.3 mm (2.7 in)
1971	65.3 mm (2.6 in)
1972	38.9 mm (1.5 in)
1973	67.6 mm (2.7 in)
1974	93.2 mm (3.7 in)
1975	82.4 mm (3.2 in)
1976	67.0 mm (2.6 in)
1977	45.8 mm (1.8 in)
1978	36.0 mm (1.4 in)
1979	55.0 mm (2.2 in)
1980	28.6 mm (1.1 in)
1981	62.8 mm (2.5 in)
1982	51.4 mm (2.0 in)
1983	68.2 mm (2.7 in)
1984	37.7 mm (1.5 in)
1985	38.4 mm (1.5 in)
1986	78.4 mm (3.1 in)
1987	41.8 mm (1.6 in)
1988	42.8 mm (1.7 in)
1989	48.0 mm (1.9 in)
1990	110.0 mm (4.3 in)
1991	49.2 mm (1.9 in)
1992	48.6 mm (1.9 in)
1993	32.0 mm (1.3 in)
1994	43.8 mm (1.7 in)
1995	50.8 mm (2.0 in)
1996	45.8 mm (1.8 in)
1997	39.0 mm (1.5 in)
1998	42.2 mm (1.7 in)
1999	77.8 mm (3.1 in)
2000	93.0 mm (3.7 in)
2001	57.0 mm (2.2 in)
2002	31.8 mm (1.3 in)
2003	45.6 mm (1.8 in)
2004	30.4 mm (1.2 in)
2005	33.9 mm (1.3 in)
2006	41.0 mm (1.6 in)
2007	29.7 mm (1.2 in)
2008	56.0 mm (2.2 in)
2009	24.5 mm (1.0 in)
2010	27.0 mm (1.1 in)
2011	51.5 mm (2.0 in)
2012	32.4 mm (1.3 in)
2013	40.0 mm (1.6 in)
2014	37.8 mm (1.5 in)
2015	20.4 mm (0.8 in)
2016	32.0 mm (1.3 in)
2017	85.2 mm (3.4 in)
2018	69.6 mm (2.7 in)
2019	34.3 mm (1.4 in)
2020	24.6 mm (1.0 in)
2021	67.8 mm (2.7 in)
2022	40.1 mm (1.6 in)
2023	30.0 mm (1.2 in)
2024	32.8 mm (1.3 in)
2025	34.5 mm (1.4 in)
2026	45.0 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grass Valley, 1891 to 2026. The record is 150 days in 1959, marked on the chart; the median year is 52 days.

Longest dry spell (CDD) at Grass Valley by year
Year	Longest dry spell (CDD)
1891	30 days
1894	31 days
1895	31 days
1897	31 days
1898	31 days
1899	31 days
1900	28 days
1901	31 days
1902	59 days
1903	31 days
1904	60 days
1906	59 days
1907	67 days
1908	95 days
1909	52 days
1910	62 days
1911	63 days
1912	48 days
1913	100 days
1914	47 days
1915	71 days
1916	58 days
1917	40 days
1918	31 days
1919	31 days
1920	42 days
1921	40 days
1922	54 days
1923	55 days
1924	87 days
1925	55 days
1926	36 days
1927	71 days
1928	39 days
1930	74 days
1931	59 days
1932	68 days
1933	69 days
1934	52 days
1935	64 days
1936	63 days
1937	98 days
1938	54 days
1939	52 days
1940	109 days
1941	72 days
1942	71 days
1943	83 days
1944	52 days
1945	48 days
1946	94 days
1947	56 days
1948	79 days
1949	70 days
1950	98 days
1951	39 days
1952	66 days
1953	45 days
1954	91 days
1955	48 days
1956	102 days
1957	78 days
1958	128 days
1959	150 days
1960	74 days
1961	63 days
1962	41 days
1963	27 days
1964	54 days
1965	37 days
1966	50 days
1967	99 days
1968	43 days
1969	77 days
1970	83 days
1971	38 days
1972	60 days
1973	81 days
1974	89 days
1975	58 days
1976	50 days
1977	64 days
1978	43 days
1979	42 days
1980	58 days
1981	47 days
1982	40 days
1983	45 days
1984	52 days
1985	66 days
1986	45 days
1987	80 days
1988	68 days
1989	41 days
1990	42 days
1991	42 days
1992	37 days
1993	77 days
1994	84 days
1995	41 days
1996	46 days
1997	50 days
1998	69 days
1999	47 days
2000	40 days
2001	41 days
2002	35 days
2003	40 days
2004	58 days
2005	56 days
2006	31 days
2007	53 days
2008	43 days
2009	41 days
2010	49 days
2011	36 days
2012	55 days
2013	42 days
2014	61 days
2015	32 days
2016	42 days
2017	51 days
2018	53 days
2019	44 days
2020	49 days
2021	64 days
2022	31 days
2023	41 days
2024	47 days
2025	50 days
2026	43 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

103 years, 1907 to 2025

A day with at least 32.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 102.0 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Grass Valley: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.1 mm (1.3 in)
5 years	45.3 mm (1.8 in)
10 years	55.9 mm (2.2 in)
25 years	71.8 mm (2.8 in)
50 years	85.9 mm (3.4 in)
100 years	102.0 mm (4.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 103 years of values from 1907 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: 109.2 mm (4.3 in) in 1934; 97.8 mm (3.9 in) in 1955; 95.8 mm (3.8 in) in 1947.

Download the Data

Data for Grass Valley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grass Valley 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).

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