Sydenham Weather Records (ASN00087062)

Record envelope, standing records and threshold days for Sydenham (ASN00087062), Australia, with 62 years of record.

Key Facts for Sydenham

Sydenham (ASN00087062) is a weather station in Australia at -37.70 latitude and 144.77 longitude, 106 m (347 ft) above sea level.
The station reports from 1930 to 1991, 62 years of record.
0 records set at Sydenham still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Sydenham set a daily record precipitation of 26.0 mm (1.0 in) on 8 June 1991.

About the Station

Location: Australia, -37.70 latitude, 144.77 longitude.
Elevation: 106 m (347 ft).
Period of record: 1930 to 1991, 62 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 Sydenham. 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 Sydenham, 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 Sydenham still stand.

Wettest Day of Each Month

Feb: 112.3 mm (4.4 in)

The wettest day on record for each calendar month at Sydenham. The most was 112.3 mm (4.4 in) on 26 February 1946.

Record daily precipitation for each month at Sydenham
Month	Record daily precipitation (mm)	Date
Jan	102.1 mm (4.0 in)	29 January 1963
Feb	112.3 mm (4.4 in)	26 February 1946
Mar	62.0 mm (2.4 in)	18 March 1950
Apr	70.0 mm (2.8 in)	10 April 1978
May	57.4 mm (2.3 in)	16 May 1974
Jun	28.4 mm (1.1 in)	19 June 1946
Jul	47.2 mm (1.9 in)	30 July 1987
Aug	37.2 mm (1.5 in)	7 August 1978
Sep	49.8 mm (2.0 in)	30 September 1953
Oct	75.8 mm (3.0 in)	16 October 1983
Nov	76.5 mm (3.0 in)	12 November 1949
Dec	68.6 mm (2.7 in)	4 December 1954

Latest Records

Latest records at Sydenham
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 June 1991	Sydenham, AU	daily rain	26.0 mm (1.0 in)	5.9 mm (0.23 in)	46 years	35 of 100 (Notable)
3 June 1991	Sydenham, AU	daily rain	18.8 mm (0.7 in)	6.9 mm (0.27 in)	36 years	20 of 100 (Routine)
23 January 1991	Sydenham, AU	daily rain	24.4 mm (1.0 in)	7.9 mm (0.31 in)	48 years	20 of 100 (Routine)
6 January 1991	Sydenham, AU	daily rain	18.6 mm (0.7 in)	2.6 mm (0.10 in)	37 years	19 of 100 (Routine)
5 January 1991	Sydenham, AU	daily rain	46.0 mm (1.8 in)	14.4 mm (0.6 in)	4 years	21 of 100 (Routine)
18 July 1990	Sydenham, AU	daily rain	29.0 mm (1.1 in)	11.2 mm (0.4 in)	4 years	29 of 100 (Routine)
15 July 1990	Sydenham, AU	daily rain	8.8 mm (0.35 in)	1.9 mm (0.07 in)	24 years	16 of 100 (Routine)
28 March 1990	Sydenham, AU	daily rain	22.8 mm (0.9 in)	9.2 mm (0.36 in)	8 years	19 of 100 (Routine)
1 February 1990	Sydenham, AU	daily rain	26.4 mm (1.0 in)	10.7 mm (0.4 in)	19 years	19 of 100 (Routine)
11 June 1989	Sydenham, AU	daily rain	27.8 mm (1.1 in)	23.8 mm (0.9 in)	0 years	46 of 100 (Notable)
4 June 1989	Sydenham, AU	daily rain	9.0 mm (0.35 in)	1.4 mm (0.06 in)	40 years	20 of 100 (Routine)
1 April 1989	Sydenham, AU	daily rain	21.8 mm (0.9 in)	10.1 mm (0.4 in)	48 years	20 of 100 (Routine)
8 February 1989	Sydenham, AU	daily rain	15.6 mm (0.6 in)	7.4 mm (0.29 in)	14 years	15 of 100 (Routine)
4 January 1989	Sydenham, AU	daily rain	19.0 mm (0.7 in)	1.0 mm (0.04 in)	15 years	11 of 100 (Routine)
26 December 1988	Sydenham, AU	daily rain	36.2 mm (1.4 in)	15.9 mm (0.6 in)	10 years	24 of 100 (Routine)
18 December 1988	Sydenham, AU	daily rain	42.4 mm (1.7 in)	32.2 mm (1.3 in)	10 years	42 of 100 (Notable)
25 November 1988	Sydenham, AU	daily rain	27.6 mm (1.1 in)	4.2 mm (0.17 in)	23 years	15 of 100 (Routine)
23 November 1988	Sydenham, AU	daily rain	45.6 mm (1.8 in)	27.1 mm (1.1 in)	48 years	49 of 100 (Notable)
9 August 1988	Sydenham, AU	daily rain	9.2 mm (0.36 in)	1.4 mm (0.06 in)	10 years	11 of 100 (Routine)
11 June 1988	Sydenham, AU	daily rain	4.0 mm (0.16 in)	0.7 mm (0.03 in)	15 years	10 of 100 (Routine)

Extremes by Year

1930 to 1991

Yearly extremes at Sydenham: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	112.3 mm (4.4 in)	1946	40.6 mm (1.6 in)	61
Wettest five days (Rx5day)	147.9 mm (5.8 in)	1939	64.2 mm (2.5 in)	61
Longest dry spell (CDD)	46 days	1948	24 days	61

Wettest day (Rx1day)

The wettest day of the year at Sydenham, 1930 to 1991. The record is 112.3 mm (4.4 in) in 1946, marked on the chart; the median year is 40.6 mm (1.6 in).

Wettest day (Rx1day) at Sydenham by year
Year	Wettest day (Rx1day)
1930	66.5 mm (2.6 in)
1931	41.1 mm (1.6 in)
1932	48.3 mm (1.9 in)
1933	46.2 mm (1.8 in)
1934	34.3 mm (1.4 in)
1935	25.4 mm (1.0 in)
1936	39.4 mm (1.6 in)
1937	40.6 mm (1.6 in)
1938	34.0 mm (1.3 in)
1939	59.7 mm (2.4 in)
1940	38.9 mm (1.5 in)
1941	45.7 mm (1.8 in)
1942	51.3 mm (2.0 in)
1943	23.1 mm (0.9 in)
1944	20.1 mm (0.8 in)
1945	23.4 mm (0.9 in)
1946	112.3 mm (4.4 in)
1947	40.1 mm (1.6 in)
1948	31.5 mm (1.2 in)
1949	76.5 mm (3.0 in)
1950	77.2 mm (3.0 in)
1951	40.4 mm (1.6 in)
1952	44.5 mm (1.8 in)
1953	60.7 mm (2.4 in)
1954	68.6 mm (2.7 in)
1955	38.6 mm (1.5 in)
1956	26.7 mm (1.1 in)
1957	34.3 mm (1.4 in)
1958	38.6 mm (1.5 in)
1959	36.8 mm (1.4 in)
1960	57.2 mm (2.3 in)
1961	41.9 mm (1.6 in)
1962	45.2 mm (1.8 in)
1963	102.1 mm (4.0 in)
1964	30.0 mm (1.2 in)
1965	29.7 mm (1.2 in)
1966	39.4 mm (1.6 in)
1967	15.2 mm (0.6 in)
1968	31.2 mm (1.2 in)
1969	28.7 mm (1.1 in)
1971	62.2 mm (2.4 in)
1972	71.4 mm (2.8 in)
1973	92.7 mm (3.6 in)
1974	57.4 mm (2.3 in)
1975	29.2 mm (1.1 in)
1976	37.0 mm (1.5 in)
1977	51.0 mm (2.0 in)
1978	70.0 mm (2.8 in)
1979	28.8 mm (1.1 in)
1980	24.8 mm (1.0 in)
1981	42.6 mm (1.7 in)
1982	41.6 mm (1.6 in)
1983	75.8 mm (3.0 in)
1984	28.2 mm (1.1 in)
1985	55.2 mm (2.2 in)
1986	24.6 mm (1.0 in)
1987	52.2 mm (2.1 in)
1988	51.8 mm (2.0 in)
1989	36.6 mm (1.4 in)
1990	29.0 mm (1.1 in)
1991	46.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sydenham, 1930 to 1991. The record is 147.9 mm (5.8 in) in 1939, marked on the chart; the median year is 64.2 mm (2.5 in).

Wettest five days (Rx5day) at Sydenham by year
Year	Wettest five days (Rx5day)
1930	118.9 mm (4.7 in)
1931	77.1 mm (3.0 in)
1932	65.4 mm (2.6 in)
1933	61.7 mm (2.4 in)
1934	64.1 mm (2.5 in)
1935	74.3 mm (2.9 in)
1936	73.5 mm (2.9 in)
1937	87.5 mm (3.4 in)
1938	45.2 mm (1.8 in)
1939	147.9 mm (5.8 in)
1940	51.9 mm (2.0 in)
1941	59.9 mm (2.4 in)
1942	61.0 mm (2.4 in)
1943	31.0 mm (1.2 in)
1944	33.6 mm (1.3 in)
1945	41.9 mm (1.6 in)
1946	124.5 mm (4.9 in)
1947	60.9 mm (2.4 in)
1948	51.4 mm (2.0 in)
1949	85.0 mm (3.3 in)
1950	114.5 mm (4.5 in)
1951	103.2 mm (4.1 in)
1952	51.3 mm (2.0 in)
1953	70.6 mm (2.8 in)
1954	96.3 mm (3.8 in)
1955	48.8 mm (1.9 in)
1956	52.1 mm (2.1 in)
1957	70.4 mm (2.8 in)
1958	70.9 mm (2.8 in)
1959	80.6 mm (3.2 in)
1960	109.8 mm (4.3 in)
1961	59.5 mm (2.3 in)
1962	59.9 mm (2.4 in)
1963	136.5 mm (5.4 in)
1964	62.4 mm (2.5 in)
1965	61.5 mm (2.4 in)
1966	54.8 mm (2.2 in)
1967	29.1 mm (1.1 in)
1968	38.9 mm (1.5 in)
1969	45.7 mm (1.8 in)
1971	124.1 mm (4.9 in)
1972	109.0 mm (4.3 in)
1973	128.0 mm (5.0 in)
1974	87.0 mm (3.4 in)
1975	54.4 mm (2.1 in)
1976	78.6 mm (3.1 in)
1977	58.9 mm (2.3 in)
1978	108.2 mm (4.3 in)
1979	46.6 mm (1.8 in)
1980	35.0 mm (1.4 in)
1981	53.2 mm (2.1 in)
1982	61.2 mm (2.4 in)
1983	119.6 mm (4.7 in)
1984	64.2 mm (2.5 in)
1985	101.6 mm (4.0 in)
1986	30.4 mm (1.2 in)
1987	86.4 mm (3.4 in)
1988	136.4 mm (5.4 in)
1989	41.9 mm (1.6 in)
1990	72.0 mm (2.8 in)
1991	72.4 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sydenham, 1930 to 1991. The record is 46 days in 1948, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Sydenham by year
Year	Longest dry spell (CDD)
1930	7 days
1931	19 days
1932	23 days
1933	19 days
1934	23 days
1935	19 days
1936	27 days
1937	20 days
1938	33 days
1939	26 days
1940	31 days
1941	24 days
1942	19 days
1943	32 days
1944	45 days
1945	34 days
1946	16 days
1947	24 days
1948	46 days
1949	21 days
1950	34 days
1951	37 days
1952	33 days
1953	19 days
1954	25 days
1955	27 days
1956	40 days
1957	18 days
1958	21 days
1959	17 days
1960	18 days
1961	35 days
1962	24 days
1963	24 days
1964	26 days
1965	45 days
1966	18 days
1967	26 days
1968	25 days
1969	14 days
1971	18 days
1972	36 days
1973	18 days
1974	35 days
1975	30 days
1976	37 days
1977	18 days
1978	17 days
1979	23 days
1980	19 days
1981	26 days
1982	25 days
1983	26 days
1984	17 days
1985	33 days
1986	36 days
1987	24 days
1988	25 days
1989	23 days
1990	18 days
1991	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

56 years, 1931 to 1990

A day with at least 40.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 115.8 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Sydenham: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.4 mm (1.6 in)
5 years	57.1 mm (2.2 in)
10 years	69.4 mm (2.7 in)
25 years	86.6 mm (3.4 in)
50 years	100.7 mm (4.0 in)
100 years	115.8 mm (4.6 in)	Longer than the 56 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, 56 years of values from 1931 to 1990.

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: 112.3 mm (4.4 in) in 1946; 102.1 mm (4.0 in) in 1963; 77.2 mm (3.0 in) in 1950.

Download the Data

Data for Sydenham standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sydenham 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 2026-10-17 (17 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