Serpentine Weather Records (ASN00009039)

Record envelope, standing records and threshold days for Serpentine (ASN00009039), Australia, with 120 years of record.

Key Facts for Serpentine

Serpentine (ASN00009039) is a weather station in Australia at -32.35 latitude and 116.00 longitude, 120 m (394 ft) above sea level.
The station reports from 1907 to 2026, 120 years of record.
0 records set at Serpentine still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Serpentine set a daily record precipitation of 28.8 mm (1.1 in) on 6 September 2025.

About the Station

Location: Australia, -32.35 latitude, 116.00 longitude.
Elevation: 120 m (394 ft).
Period of record: 1907 to 2026, 120 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 Serpentine. 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 Serpentine, 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 Serpentine still stand.

All-Time Record Progression

2 new records

2 all-time records were set at Serpentine between 17 February 1955 and 26 June 1967. Each dot is a new record.

When Serpentine set new all-time records
Date	Kind	Detail
1955-02-17	Record daily precipitation	Record daily precipitation 121.9 mm (4.8 in)
1967-06-26	Record daily precipitation	Record daily precipitation 145.3 mm (5.7 in)

Wettest Day of Each Month

Jun: 145.3 mm (5.7 in)

The wettest day on record for each calendar month at Serpentine. The most was 145.3 mm (5.7 in) on 26 June 1967.

Record daily precipitation for each month at Serpentine
Month	Record daily precipitation (mm)	Date
Jan	110.6 mm (4.4 in)	16 January 2018
Feb	121.9 mm (4.8 in)	17 February 1955
Mar	97.8 mm (3.9 in)	27 March 1923
Apr	67.2 mm (2.6 in)	17 April 2002
May	96.0 mm (3.8 in)	25 May 1963
Jun	145.3 mm (5.7 in)	26 June 1967
Jul	75.2 mm (3.0 in)	1 July 1958
Aug	69.3 mm (2.7 in)	4 August 1964
Sep	55.4 mm (2.2 in)	10 September 1968
Oct	60.0 mm (2.4 in)	1 October 1978
Nov	41.9 mm (1.6 in)	15 November 1948
Dec	44.5 mm (1.8 in)	14 December 1921

Latest Records

Latest records at Serpentine
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 September 2025	Serpentine, AU	daily rain	28.8 mm (1.1 in)	3.1 mm (0.12 in)	95 years	42 of 100 (Notable)
20 August 2025	Serpentine, AU	daily rain	28.6 mm (1.1 in)	1.7 mm (0.07 in)	80 years	35 of 100 (Notable)
14 March 2025	Serpentine, AU	daily rain	19.8 mm (0.8 in)	0.7 mm (0.03 in)	83 years	20 of 100 (Routine)
18 August 2024	Serpentine, AU	daily rain	49.6 mm (2.0 in)	19.6 mm (0.8 in)	63 years	48 of 100 (Notable)
7 August 2024	Serpentine, AU	daily rain	52.6 mm (2.1 in)	3.6 mm (0.14 in)	79 years	36 of 100 (Notable)
14 April 2023	Serpentine, AU	daily rain	20.6 mm (0.8 in)	2.4 mm (0.09 in)	12 years	15 of 100 (Routine)
31 March 2023	Serpentine, AU	daily rain	49.8 mm (2.0 in)	31.6 mm (1.2 in)	20 years	51 of 100 (Notable)
8 December 2022	Serpentine, AU	daily rain (Tie)	8.0 mm (0.31 in)	tie	11 years	3 of 100 (Routine)
18 November 2022	Serpentine, AU	daily rain	18.2 mm (0.7 in)	5.5 mm (0.22 in)	53 years	20 of 100 (Routine)
16 September 2021	Serpentine, AU	daily rain	33.4 mm (1.3 in)	9.0 mm (0.35 in)	64 years	41 of 100 (Notable)
21 July 2021	Serpentine, AU	daily rain	39.6 mm (1.6 in)	4.0 mm (0.16 in)	103 years	43 of 100 (Notable)
10 July 2021	Serpentine, AU	daily rain	45.4 mm (1.8 in)	12.9 mm (0.5 in)	99 years	51 of 100 (Notable)
4 March 2021	Serpentine, AU	daily rain	10.2 mm (0.4 in)	2.8 mm (0.11 in)	64 years	20 of 100 (Routine)
3 March 2021	Serpentine, AU	daily rain	5.4 mm (0.21 in)	1.6 mm (0.06 in)	79 years	20 of 100 (Routine)
2 March 2021	Serpentine, AU	daily rain	16.2 mm (0.6 in)	13.2 mm (0.5 in)	14 years	20 of 100 (Routine)
1 March 2021	Serpentine, AU	daily rain	8.0 mm (0.31 in)	2.2 mm (0.09 in)	79 years	20 of 100 (Routine)
7 February 2021	Serpentine, AU	daily rain	26.0 mm (1.0 in)	8.5 mm (0.33 in)	51 years	31 of 100 (Routine)
10 November 2020	Serpentine, AU	daily rain	32.2 mm (1.3 in)	12.4 mm (0.5 in)	44 years	44 of 100 (Notable)
7 September 2020	Serpentine, AU	daily rain	31.4 mm (1.2 in)	2.2 mm (0.09 in)	50 years	28 of 100 (Routine)
10 August 2020	Serpentine, AU	daily rain	29.2 mm (1.1 in)	1.3 mm (0.05 in)	89 years	37 of 100 (Notable)

Extremes by Year

1907 to 2026

Yearly extremes at Serpentine: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	145.3 mm (5.7 in)	1967	49.8 mm (2.0 in)	108
Wettest five days (Rx5day)	189.2 mm (7.4 in)	1955	94.0 mm (3.7 in)	108
Longest dry spell (CDD)	97 days	1937	44 days	108

Wettest day (Rx1day)

The wettest day of the year at Serpentine, 1907 to 2026. The record is 145.3 mm (5.7 in) in 1967, marked on the chart; the median year is 49.8 mm (2.0 in).

Wettest day (Rx1day) at Serpentine by year
Year	Wettest day (Rx1day)
1907	58.7 mm (2.3 in)
1908	51.3 mm (2.0 in)
1909	61.5 mm (2.4 in)
1910	47.0 mm (1.9 in)
1911	50.8 mm (2.0 in)
1912	66.5 mm (2.6 in)
1913	54.9 mm (2.2 in)
1914	47.8 mm (1.9 in)
1915	43.7 mm (1.7 in)
1916	38.1 mm (1.5 in)
1917	45.2 mm (1.8 in)
1918	42.7 mm (1.7 in)
1919	59.2 mm (2.3 in)
1920	42.7 mm (1.7 in)
1921	65.5 mm (2.6 in)
1922	43.7 mm (1.7 in)
1923	97.8 mm (3.9 in)
1924	42.7 mm (1.7 in)
1925	41.4 mm (1.6 in)
1926	36.8 mm (1.4 in)
1927	62.2 mm (2.4 in)
1928	57.2 mm (2.3 in)
1929	59.7 mm (2.4 in)
1930	55.9 mm (2.2 in)
1931	55.9 mm (2.2 in)
1932	64.5 mm (2.5 in)
1933	51.1 mm (2.0 in)
1934	51.1 mm (2.0 in)
1935	46.0 mm (1.8 in)
1936	63.5 mm (2.5 in)
1937	58.9 mm (2.3 in)
1938	37.6 mm (1.5 in)
1939	59.9 mm (2.4 in)
1940	51.1 mm (2.0 in)
1941	58.4 mm (2.3 in)
1942	58.9 mm (2.3 in)
1943	61.2 mm (2.4 in)
1944	68.6 mm (2.7 in)
1945	94.7 mm (3.7 in)
1946	60.2 mm (2.4 in)
1947	79.2 mm (3.1 in)
1948	58.4 mm (2.3 in)
1949	46.7 mm (1.8 in)
1950	40.1 mm (1.6 in)
1951	50.8 mm (2.0 in)
1952	89.4 mm (3.5 in)
1953	66.5 mm (2.6 in)
1954	44.2 mm (1.7 in)
1955	121.9 mm (4.8 in)
1956	46.0 mm (1.8 in)
1957	42.7 mm (1.7 in)
1958	75.2 mm (3.0 in)
1959	64.8 mm (2.6 in)
1960	47.5 mm (1.9 in)
1961	60.7 mm (2.4 in)
1962	42.7 mm (1.7 in)
1963	96.0 mm (3.8 in)
1964	69.3 mm (2.7 in)
1965	38.1 mm (1.5 in)
1966	37.3 mm (1.5 in)
1967	145.3 mm (5.7 in)
1968	72.4 mm (2.9 in)
1969	51.6 mm (2.0 in)
1970	73.4 mm (2.9 in)
1971	34.5 mm (1.4 in)
1972	43.2 mm (1.7 in)
1973	44.2 mm (1.7 in)
1974	44.6 mm (1.8 in)
1975	34.4 mm (1.4 in)
1976	52.2 mm (2.1 in)
1977	54.4 mm (2.1 in)
1978	60.0 mm (2.4 in)
1979	41.4 mm (1.6 in)
1980	37.6 mm (1.5 in)
1981	32.8 mm (1.3 in)
1990	24.4 mm (1.0 in)
1992	43.0 mm (1.7 in)
1993	34.6 mm (1.4 in)
1994	22.2 mm (0.9 in)
1995	46.2 mm (1.8 in)
1996	41.0 mm (1.6 in)
2000	0.8 mm (0.03 in)
2001	35.8 mm (1.4 in)
2002	67.2 mm (2.6 in)
2003	46.2 mm (1.8 in)
2004	10.8 mm (0.4 in)
2005	69.4 mm (2.7 in)
2006	29.6 mm (1.2 in)
2007	49.8 mm (2.0 in)
2008	42.8 mm (1.7 in)
2009	35.0 mm (1.4 in)
2010	18.2 mm (0.7 in)
2011	50.0 mm (2.0 in)
2012	60.6 mm (2.4 in)
2013	30.2 mm (1.2 in)
2014	51.0 mm (2.0 in)
2015	35.6 mm (1.4 in)
2016	39.8 mm (1.6 in)
2017	111.4 mm (4.4 in)
2018	110.6 mm (4.4 in)
2019	43.0 mm (1.7 in)
2020	32.2 mm (1.3 in)
2021	45.4 mm (1.8 in)
2022	34.6 mm (1.4 in)
2023	49.8 mm (2.0 in)
2024	52.6 mm (2.1 in)
2025	45.4 mm (1.8 in)
2026	5.0 mm (0.20 in)

Wettest five days (Rx5day)

The wettest five days of the year at Serpentine, 1907 to 2026. The record is 189.2 mm (7.4 in) in 1955, marked on the chart; the median year is 94.0 mm (3.7 in).

Wettest five days (Rx5day) at Serpentine by year
Year	Wettest five days (Rx5day)
1907	97.9 mm (3.9 in)
1908	105.9 mm (4.2 in)
1909	138.2 mm (5.4 in)
1910	139.0 mm (5.5 in)
1911	110.1 mm (4.3 in)
1912	108.2 mm (4.3 in)
1913	98.1 mm (3.9 in)
1914	60.4 mm (2.4 in)
1915	109.5 mm (4.3 in)
1916	74.7 mm (2.9 in)
1917	98.8 mm (3.9 in)
1918	80.3 mm (3.2 in)
1919	100.1 mm (3.9 in)
1920	105.4 mm (4.1 in)
1921	115.6 mm (4.6 in)
1922	94.5 mm (3.7 in)
1923	97.8 mm (3.9 in)
1924	99.6 mm (3.9 in)
1925	77.3 mm (3.0 in)
1926	98.3 mm (3.9 in)
1927	98.7 mm (3.9 in)
1928	114.0 mm (4.5 in)
1929	101.1 mm (4.0 in)
1930	102.6 mm (4.0 in)
1931	116.0 mm (4.6 in)
1932	136.2 mm (5.4 in)
1933	98.4 mm (3.9 in)
1934	85.3 mm (3.4 in)
1935	79.6 mm (3.1 in)
1936	103.7 mm (4.1 in)
1937	125.3 mm (4.9 in)
1938	88.7 mm (3.5 in)
1939	121.8 mm (4.8 in)
1940	53.1 mm (2.1 in)
1941	72.4 mm (2.9 in)
1942	87.8 mm (3.5 in)
1943	91.0 mm (3.6 in)
1944	91.0 mm (3.6 in)
1945	185.9 mm (7.3 in)
1946	132.6 mm (5.2 in)
1947	159.2 mm (6.3 in)
1948	80.0 mm (3.1 in)
1949	70.3 mm (2.8 in)
1950	68.1 mm (2.7 in)
1951	107.0 mm (4.2 in)
1952	105.2 mm (4.1 in)
1953	79.8 mm (3.1 in)
1954	88.5 mm (3.5 in)
1955	189.2 mm (7.4 in)
1956	121.9 mm (4.8 in)
1957	97.3 mm (3.8 in)
1958	157.3 mm (6.2 in)
1959	107.9 mm (4.2 in)
1960	76.6 mm (3.0 in)
1961	97.8 mm (3.9 in)
1962	103.4 mm (4.1 in)
1963	158.4 mm (6.2 in)
1964	127.2 mm (5.0 in)
1965	101.9 mm (4.0 in)
1966	76.2 mm (3.0 in)
1967	161.4 mm (6.4 in)
1968	134.3 mm (5.3 in)
1969	71.6 mm (2.8 in)
1970	95.2 mm (3.7 in)
1971	68.3 mm (2.7 in)
1972	80.8 mm (3.2 in)
1973	82.6 mm (3.3 in)
1974	99.2 mm (3.9 in)
1975	86.2 mm (3.4 in)
1976	88.2 mm (3.5 in)
1977	94.8 mm (3.7 in)
1978	110.8 mm (4.4 in)
1979	72.6 mm (2.9 in)
1980	75.0 mm (3.0 in)
1981	101.6 mm (4.0 in)
1990	68.0 mm (2.7 in)
1992	73.0 mm (2.9 in)
1993	47.7 mm (1.9 in)
1994	62.0 mm (2.4 in)
1995	59.9 mm (2.4 in)
1996	116.6 mm (4.6 in)
2000	0.8 mm (0.03 in)
2001	64.0 mm (2.5 in)
2002	94.0 mm (3.7 in)
2003	96.6 mm (3.8 in)
2004	22.2 mm (0.9 in)
2005	105.6 mm (4.2 in)
2006	55.2 mm (2.2 in)
2007	65.2 mm (2.6 in)
2008	67.4 mm (2.7 in)
2009	94.0 mm (3.7 in)
2010	33.8 mm (1.3 in)
2011	91.0 mm (3.6 in)
2012	83.8 mm (3.3 in)
2013	70.0 mm (2.8 in)
2014	88.8 mm (3.5 in)
2015	61.8 mm (2.4 in)
2016	88.8 mm (3.5 in)
2017	127.8 mm (5.0 in)
2018	115.8 mm (4.6 in)
2019	80.8 mm (3.2 in)
2020	67.8 mm (2.7 in)
2021	90.6 mm (3.6 in)
2022	72.8 mm (2.9 in)
2023	80.0 mm (3.1 in)
2024	88.0 mm (3.5 in)
2025	84.8 mm (3.3 in)
2026	8.0 mm (0.31 in)

Longest dry spell (CDD)

The longest dry spell of the year at Serpentine, 1907 to 2026. The record is 97 days in 1937, marked on the chart; the median year is 44 days.

Longest dry spell (CDD) at Serpentine by year
Year	Longest dry spell (CDD)
1907	40 days
1908	38 days
1909	62 days
1910	64 days
1911	44 days
1912	54 days
1913	33 days
1914	44 days
1915	28 days
1916	32 days
1917	40 days
1918	45 days
1919	70 days
1920	46 days
1921	30 days
1922	27 days
1923	65 days
1924	52 days
1925	40 days
1926	45 days
1927	44 days
1928	57 days
1929	35 days
1930	46 days
1931	63 days
1932	64 days
1933	60 days
1934	47 days
1935	38 days
1936	61 days
1937	97 days
1938	58 days
1939	52 days
1940	30 days
1941	72 days
1942	56 days
1943	35 days
1944	95 days
1945	47 days
1946	65 days
1947	64 days
1948	53 days
1949	42 days
1950	46 days
1951	44 days
1952	63 days
1953	57 days
1954	60 days
1955	43 days
1956	59 days
1957	57 days
1958	34 days
1959	34 days
1960	46 days
1961	31 days
1962	62 days
1963	26 days
1964	54 days
1965	73 days
1966	28 days
1967	27 days
1968	32 days
1969	44 days
1970	51 days
1971	34 days
1972	80 days
1973	57 days
1974	36 days
1975	67 days
1976	31 days
1977	35 days
1978	37 days
1979	31 days
1980	40 days
1981	43 days
1990	18 days
1992	25 days
1993	24 days
1994	21 days
1995	41 days
1996	14 days
2000	27 days
2001	37 days
2002	57 days
2003	32 days
2004	26 days
2005	45 days
2006	43 days
2007	37 days
2008	51 days
2009	59 days
2010	43 days
2011	37 days
2012	58 days
2013	55 days
2014	81 days
2015	37 days
2016	30 days
2017	39 days
2018	38 days
2019	41 days
2020	31 days
2021	45 days
2022	37 days
2023	61 days
2024	39 days
2025	47 days
2026	30 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

96 years, 1907 to 2025

A day with at least 50.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 131.1 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Serpentine: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	50.8 mm (2.0 in)
5 years	66.7 mm (2.6 in)
10 years	79.2 mm (3.1 in)
25 years	97.6 mm (3.8 in)
50 years	113.4 mm (4.5 in)
100 years	131.1 mm (5.2 in)	Longer than the 96 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, 96 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: 145.3 mm (5.7 in) in 1967; 121.9 mm (4.8 in) in 1955; 111.4 mm (4.4 in) in 2017.

Download the Data

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