Riverdale Weather Records (ASN00010635)

Record envelope, standing records and threshold days for Riverdale (ASN00010635), Australia, with 118 years of record.

Key Facts for Riverdale

Riverdale (ASN00010635) is a weather station in Australia at -33.79 latitude and 116.91 longitude, 260 m (853 ft) above sea level.
The station reports from 1909 to 2026, 118 years of record.
0 records set at Riverdale still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Riverdale set a monthly record daily precipitation of 45.0 mm (1.8 in) on 17 July 2026.

About the Station

Location: Australia, -33.79 latitude, 116.91 longitude.
Elevation: 260 m (853 ft).
Period of record: 1909 to 2026, 118 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 Riverdale. 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 Riverdale, 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 Riverdale still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Riverdale between 17 February 1955 and 17 February 1955. Each dot is a new record.

Wettest Day of Each Month

Feb: 120.7 mm (4.8 in)

The wettest day on record for each calendar month at Riverdale. The most was 120.7 mm (4.8 in) on 17 February 1955.

Record daily precipitation for each month at Riverdale
Month	Record daily precipitation (mm)	Date
Jan	111.0 mm (4.4 in)	22 January 1982
Feb	120.7 mm (4.8 in)	17 February 1955
Mar	68.3 mm (2.7 in)	4 March 1937
Apr	71.1 mm (2.8 in)	20 April 1928
May	52.8 mm (2.1 in)	19 May 2005
Jun	64.5 mm (2.5 in)	10 June 1945
Jul	45.0 mm (1.8 in)	17 July 2026
Aug	43.7 mm (1.7 in)	18 August 1963
Sep	52.0 mm (2.0 in)	11 September 1986
Oct	52.1 mm (2.1 in)	23 October 1965
Nov	48.3 mm (1.9 in)	4 November 1965
Dec	112.0 mm (4.4 in)	24 December 1987

Latest Records

Latest records at Riverdale
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 July 2026	Riverdale, AU	monthly rain	45.0 mm (1.8 in)	1.8 mm (0.07 in)	102 years	52 of 100 (Notable)
29 March 2026	Riverdale, AU	daily rain	19.0 mm (0.7 in)	9.6 mm (0.38 in)	73 years	20 of 100 (Routine)
3 July 2025	Riverdale, AU	daily rain	28.2 mm (1.1 in)	5.3 mm (0.21 in)	112 years	48 of 100 (Notable)
5 April 2025	Riverdale, AU	daily rain	7.8 mm (0.31 in)	1.7 mm (0.07 in)	74 years	20 of 100 (Routine)
4 April 2025	Riverdale, AU	daily rain	32.0 mm (1.3 in)	18.5 mm (0.7 in)	90 years	60 of 100 (Major)
14 March 2025	Riverdale, AU	daily rain	36.0 mm (1.4 in)	27.6 mm (1.1 in)	112 years	67 of 100 (Major)
23 July 2024	Riverdale, AU	daily rain	30.0 mm (1.2 in)	6.1 mm (0.24 in)	63 years	37 of 100 (Notable)
3 August 2023	Riverdale, AU	daily rain	41.0 mm (1.6 in)	12.2 mm (0.5 in)	20 years	36 of 100 (Notable)
11 November 2022	Riverdale, AU	daily rain	12.0 mm (0.5 in)	1.0 mm (0.04 in)	45 years	20 of 100 (Routine)
22 November 2021	Riverdale, AU	daily rain	24.0 mm (0.9 in)	19.0 mm (0.7 in)	36 years	20 of 100 (Routine)
26 October 2021	Riverdale, AU	daily rain	10.2 mm (0.4 in)	1.3 mm (0.05 in)	62 years	20 of 100 (Routine)
16 September 2021	Riverdale, AU	daily rain	13.2 mm (0.5 in)	3.7 mm (0.15 in)	28 years	20 of 100 (Routine)
9 September 2021	Riverdale, AU	daily rain	24.0 mm (0.9 in)	9.0 mm (0.35 in)	28 years	20 of 100 (Routine)
10 July 2021	Riverdale, AU	daily rain (Tie)	23.4 mm (0.9 in)	tie	80 years	8 of 100 (Routine)
5 May 2021	Riverdale, AU	daily rain	44.0 mm (1.7 in)	6.7 mm (0.26 in)	80 years	43 of 100 (Notable)
12 April 2021	Riverdale, AU	daily rain	55.0 mm (2.2 in)	29.4 mm (1.2 in)	4 years	49 of 100 (Notable)
8 February 2021	Riverdale, AU	daily rain	16.0 mm (0.6 in)	1.8 mm (0.07 in)	62 years	20 of 100 (Routine)
7 February 2021	Riverdale, AU	daily rain	29.6 mm (1.2 in)	16.1 mm (0.6 in)	51 years	38 of 100 (Notable)
27 September 2020	Riverdale, AU	daily rain	10.6 mm (0.4 in)	0.2 mm (0.01 in)	24 years	17 of 100 (Routine)
7 September 2020	Riverdale, AU	daily rain	20.2 mm (0.8 in)	9.5 mm (0.37 in)	111 years	20 of 100 (Routine)

Extremes by Year

1909 to 2026

Yearly extremes at Riverdale: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	120.7 mm (4.8 in)	1955	33.3 mm (1.3 in)	116
Wettest five days (Rx5day)	205.0 mm (8.1 in)	1982	52.0 mm (2.0 in)	116
Longest dry spell (CDD)	88 days	1948	44 days	116

Wettest day (Rx1day)

The wettest day of the year at Riverdale, 1909 to 2026. The record is 120.7 mm (4.8 in) in 1955, marked on the chart; the median year is 33.3 mm (1.3 in).

Wettest day (Rx1day) at Riverdale by year
Year	Wettest day (Rx1day)
1909	58.4 mm (2.3 in)
1910	26.4 mm (1.0 in)
1911	24.1 mm (0.9 in)
1912	24.1 mm (0.9 in)
1914	8.4 mm (0.33 in)
1915	36.3 mm (1.4 in)
1916	33.0 mm (1.3 in)
1917	40.1 mm (1.6 in)
1918	33.8 mm (1.3 in)
1919	31.8 mm (1.3 in)
1920	23.6 mm (0.9 in)
1921	34.8 mm (1.4 in)
1922	31.0 mm (1.2 in)
1923	41.1 mm (1.6 in)
1924	43.2 mm (1.7 in)
1925	19.6 mm (0.8 in)
1926	31.0 mm (1.2 in)
1927	39.6 mm (1.6 in)
1928	71.1 mm (2.8 in)
1929	47.0 mm (1.9 in)
1930	33.0 mm (1.3 in)
1931	30.5 mm (1.2 in)
1932	46.2 mm (1.8 in)
1933	33.5 mm (1.3 in)
1934	44.7 mm (1.8 in)
1935	35.1 mm (1.4 in)
1936	31.8 mm (1.3 in)
1937	68.3 mm (2.7 in)
1939	77.5 mm (3.1 in)
1940	16.5 mm (0.6 in)
1941	37.3 mm (1.5 in)
1942	50.3 mm (2.0 in)
1943	55.9 mm (2.2 in)
1944	38.6 mm (1.5 in)
1945	64.5 mm (2.5 in)
1946	24.6 mm (1.0 in)
1947	46.5 mm (1.8 in)
1948	33.8 mm (1.3 in)
1949	24.1 mm (0.9 in)
1950	23.4 mm (0.9 in)
1951	24.1 mm (0.9 in)
1952	43.9 mm (1.7 in)
1953	25.4 mm (1.0 in)
1954	29.0 mm (1.1 in)
1955	120.7 mm (4.8 in)
1956	58.2 mm (2.3 in)
1957	22.9 mm (0.9 in)
1958	31.2 mm (1.2 in)
1959	34.5 mm (1.4 in)
1960	34.5 mm (1.4 in)
1961	43.2 mm (1.7 in)
1962	32.3 mm (1.3 in)
1963	52.1 mm (2.1 in)
1964	17.3 mm (0.7 in)
1965	52.1 mm (2.1 in)
1966	29.2 mm (1.1 in)
1967	26.2 mm (1.0 in)
1968	36.3 mm (1.4 in)
1969	28.2 mm (1.1 in)
1970	19.3 mm (0.8 in)
1971	53.3 mm (2.1 in)
1972	20.6 mm (0.8 in)
1973	24.9 mm (1.0 in)
1974	26.0 mm (1.0 in)
1975	27.0 mm (1.1 in)
1976	52.0 mm (2.0 in)
1977	29.0 mm (1.1 in)
1978	38.0 mm (1.5 in)
1979	24.0 mm (0.9 in)
1980	48.0 mm (1.9 in)
1981	23.0 mm (0.9 in)
1982	111.0 mm (4.4 in)
1983	40.0 mm (1.6 in)
1984	29.0 mm (1.1 in)
1985	66.0 mm (2.6 in)
1986	52.0 mm (2.0 in)
1987	112.0 mm (4.4 in)
1988	42.0 mm (1.7 in)
1989	36.0 mm (1.4 in)
1990	30.0 mm (1.2 in)
1991	22.0 mm (0.9 in)
1992	20.0 mm (0.8 in)
1993	33.0 mm (1.3 in)
1994	39.0 mm (1.5 in)
1995	23.2 mm (0.9 in)
1996	28.2 mm (1.1 in)
1997	32.0 mm (1.3 in)
1998	34.2 mm (1.3 in)
1999	32.0 mm (1.3 in)
2000	29.4 mm (1.2 in)
2001	32.4 mm (1.3 in)
2002	50.0 mm (2.0 in)
2003	28.8 mm (1.1 in)
2004	19.2 mm (0.8 in)
2005	52.8 mm (2.1 in)
2006	25.6 mm (1.0 in)
2007	29.6 mm (1.2 in)
2008	36.2 mm (1.4 in)
2009	22.4 mm (0.9 in)
2010	32.4 mm (1.3 in)
2011	37.8 mm (1.5 in)
2012	40.0 mm (1.6 in)
2013	37.0 mm (1.5 in)
2014	25.6 mm (1.0 in)
2015	44.8 mm (1.8 in)
2016	33.6 mm (1.3 in)
2017	40.0 mm (1.6 in)
2018	28.6 mm (1.1 in)
2019	28.8 mm (1.1 in)
2020	22.8 mm (0.9 in)
2021	55.0 mm (2.2 in)
2022	15.0 mm (0.6 in)
2023	41.0 mm (1.6 in)
2024	30.0 mm (1.2 in)
2025	36.0 mm (1.4 in)
2026	45.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Riverdale, 1909 to 2026. The record is 205.0 mm (8.1 in) in 1982, marked on the chart; the median year is 52.0 mm (2.0 in).

Wettest five days (Rx5day) at Riverdale by year
Year	Wettest five days (Rx5day)
1909	89.6 mm (3.5 in)
1910	80.3 mm (3.2 in)
1911	42.3 mm (1.7 in)
1912	41.4 mm (1.6 in)
1914	21.8 mm (0.9 in)
1915	51.5 mm (2.0 in)
1916	60.9 mm (2.4 in)
1917	131.4 mm (5.2 in)
1918	44.8 mm (1.8 in)
1919	62.5 mm (2.5 in)
1920	50.9 mm (2.0 in)
1921	61.2 mm (2.4 in)
1922	51.9 mm (2.0 in)
1923	52.6 mm (2.1 in)
1924	50.1 mm (2.0 in)
1925	51.3 mm (2.0 in)
1926	80.0 mm (3.1 in)
1927	46.7 mm (1.8 in)
1928	75.5 mm (3.0 in)
1929	58.4 mm (2.3 in)
1930	63.3 mm (2.5 in)
1931	51.3 mm (2.0 in)
1932	84.1 mm (3.3 in)
1933	60.0 mm (2.4 in)
1934	47.0 mm (1.9 in)
1935	46.5 mm (1.8 in)
1936	47.0 mm (1.9 in)
1937	80.8 mm (3.2 in)
1939	141.7 mm (5.6 in)
1940	29.2 mm (1.1 in)
1941	44.0 mm (1.7 in)
1942	51.3 mm (2.0 in)
1943	61.7 mm (2.4 in)
1944	45.2 mm (1.8 in)
1945	88.6 mm (3.5 in)
1946	56.5 mm (2.2 in)
1947	69.0 mm (2.7 in)
1948	42.0 mm (1.7 in)
1949	45.7 mm (1.8 in)
1950	46.0 mm (1.8 in)
1951	70.8 mm (2.8 in)
1952	52.3 mm (2.1 in)
1953	44.4 mm (1.7 in)
1954	62.5 mm (2.5 in)
1955	161.3 mm (6.4 in)
1956	64.8 mm (2.6 in)
1957	47.4 mm (1.9 in)
1958	88.6 mm (3.5 in)
1959	62.8 mm (2.5 in)
1960	94.5 mm (3.7 in)
1961	59.2 mm (2.3 in)
1962	60.0 mm (2.4 in)
1963	87.4 mm (3.4 in)
1964	41.7 mm (1.6 in)
1965	62.3 mm (2.5 in)
1966	41.6 mm (1.6 in)
1967	51.8 mm (2.0 in)
1968	41.4 mm (1.6 in)
1969	52.0 mm (2.0 in)
1970	34.8 mm (1.4 in)
1971	76.2 mm (3.0 in)
1972	29.8 mm (1.2 in)
1973	50.6 mm (2.0 in)
1974	51.2 mm (2.0 in)
1975	72.0 mm (2.8 in)
1976	56.0 mm (2.2 in)
1977	46.0 mm (1.8 in)
1978	51.0 mm (2.0 in)
1979	48.0 mm (1.9 in)
1980	48.0 mm (1.9 in)
1981	46.0 mm (1.8 in)
1982	205.0 mm (8.1 in)
1983	72.0 mm (2.8 in)
1984	37.0 mm (1.5 in)
1985	72.0 mm (2.8 in)
1986	59.0 mm (2.3 in)
1987	114.0 mm (4.5 in)
1988	51.0 mm (2.0 in)
1989	41.0 mm (1.6 in)
1990	59.0 mm (2.3 in)
1991	52.0 mm (2.0 in)
1992	43.0 mm (1.7 in)
1993	53.0 mm (2.1 in)
1994	60.0 mm (2.4 in)
1995	50.5 mm (2.0 in)
1996	65.0 mm (2.6 in)
1997	42.9 mm (1.7 in)
1998	59.0 mm (2.3 in)
1999	40.6 mm (1.6 in)
2000	55.0 mm (2.2 in)
2001	61.8 mm (2.4 in)
2002	50.4 mm (2.0 in)
2003	50.4 mm (2.0 in)
2004	47.4 mm (1.9 in)
2005	102.8 mm (4.0 in)
2006	35.4 mm (1.4 in)
2007	43.8 mm (1.7 in)
2008	64.6 mm (2.5 in)
2009	60.4 mm (2.4 in)
2010	44.4 mm (1.7 in)
2011	71.0 mm (2.8 in)
2012	40.0 mm (1.6 in)
2013	85.2 mm (3.4 in)
2014	45.8 mm (1.8 in)
2015	59.4 mm (2.3 in)
2016	81.2 mm (3.2 in)
2017	67.4 mm (2.7 in)
2018	37.8 mm (1.5 in)
2019	55.2 mm (2.2 in)
2020	33.0 mm (1.3 in)
2021	61.8 mm (2.4 in)
2022	28.0 mm (1.1 in)
2023	45.2 mm (1.8 in)
2024	39.0 mm (1.5 in)
2025	41.8 mm (1.6 in)
2026	65.0 mm (2.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Riverdale, 1909 to 2026. The record is 88 days in 1948, marked on the chart; the median year is 44 days.

Longest dry spell (CDD) at Riverdale by year
Year	Longest dry spell (CDD)
1909	44 days
1910	63 days
1911	58 days
1912	50 days
1914	20 days
1915	27 days
1916	32 days
1917	53 days
1918	33 days
1919	69 days
1920	52 days
1921	38 days
1922	45 days
1923	84 days
1924	62 days
1925	35 days
1926	44 days
1927	42 days
1928	79 days
1929	37 days
1930	54 days
1931	63 days
1932	33 days
1933	30 days
1934	28 days
1935	35 days
1936	77 days
1937	61 days
1939	44 days
1940	76 days
1941	75 days
1942	35 days
1943	27 days
1944	74 days
1945	48 days
1946	30 days
1947	27 days
1948	88 days
1949	41 days
1950	51 days
1951	29 days
1952	44 days
1953	51 days
1954	55 days
1955	24 days
1956	38 days
1957	42 days
1958	49 days
1959	25 days
1960	47 days
1961	36 days
1962	62 days
1963	32 days
1964	54 days
1965	41 days
1966	43 days
1967	38 days
1968	30 days
1969	44 days
1970	35 days
1971	85 days
1972	69 days
1973	83 days
1974	30 days
1975	45 days
1976	30 days
1977	36 days
1978	41 days
1979	42 days
1980	30 days
1981	43 days
1982	39 days
1983	36 days
1984	56 days
1985	57 days
1986	43 days
1987	63 days
1988	59 days
1989	47 days
1990	19 days
1991	53 days
1992	31 days
1993	41 days
1994	80 days
1995	44 days
1996	57 days
1997	50 days
1998	68 days
1999	40 days
2000	34 days
2001	73 days
2002	64 days
2003	32 days
2004	55 days
2005	23 days
2006	55 days
2007	45 days
2008	42 days
2009	41 days
2010	40 days
2011	28 days
2012	59 days
2013	36 days
2014	45 days
2015	28 days
2016	23 days
2017	40 days
2018	31 days
2019	65 days
2020	49 days
2021	25 days
2022	70 days
2023	58 days
2024	53 days
2025	49 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

111 years, 1909 to 2025

A day with at least 32.8 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 104.5 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Riverdale: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.8 mm (1.3 in)
5 years	45.8 mm (1.8 in)
10 years	56.4 mm (2.2 in)
25 years	72.8 mm (2.9 in)
50 years	87.4 mm (3.4 in)
100 years	104.5 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, 111 years of values from 1909 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: 120.7 mm (4.8 in) in 1955; 112.0 mm (4.4 in) in 1987; 111.0 mm (4.4 in) in 1982.

Download the Data

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