Glen Mervyn Weather Records (ASN00009705)

Record envelope, standing records and threshold days for Glen Mervyn (ASN00009705), Australia, with 100 years of record.

Key Facts for Glen Mervyn

Glen Mervyn (ASN00009705) is a weather station in Australia at -33.52 latitude and 116.07 longitude, 120 m (394 ft) above sea level.
The station reports from 1903 to 2002, 100 years of record.
0 records set at Glen Mervyn still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Glen Mervyn set a daily record precipitation of 28.0 mm (1.1 in) on 17 April 2002.

About the Station

Location: Australia, -33.52 latitude, 116.07 longitude.
Elevation: 120 m (394 ft).
Period of record: 1903 to 2002, 100 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 Glen Mervyn. 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 Glen Mervyn, 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 Glen Mervyn still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Glen Mervyn between 22 January 1982 and 22 January 1982. Each dot is a new record.

Wettest Day of Each Month

Jan: 121.0 mm (4.8 in)

The wettest day on record for each calendar month at Glen Mervyn. The most was 121.0 mm (4.8 in) on 22 January 1982.

Record daily precipitation for each month at Glen Mervyn
Month	Record daily precipitation (mm)	Date
Jan	121.0 mm (4.8 in)	22 January 1982
Feb	53.3 mm (2.1 in)	26 February 1915
Mar	69.4 mm (2.7 in)	20 March 1993
Apr	60.0 mm (2.4 in)	9 April 1985
May	56.6 mm (2.2 in)	2 May 1917
Jun	69.3 mm (2.7 in)	18 June 1927
Jul	82.3 mm (3.2 in)	21 July 1928
Aug	66.5 mm (2.6 in)	30 August 1927
Sep	52.8 mm (2.1 in)	14 September 1984
Oct	109.0 mm (4.3 in)	10 October 1926
Nov	31.0 mm (1.2 in)	23 November 1916
Dec	29.2 mm (1.1 in)	6 December 1922

Latest Records

Latest records at Glen Mervyn
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 2002	Glen Mervyn, AU	daily rain	28.0 mm (1.1 in)	8.4 mm (0.33 in)	83 years	42 of 100 (Notable)
1 December 2001	Glen Mervyn, AU	daily rain	20.0 mm (0.8 in)	15.0 mm (0.6 in)	3 years	20 of 100 (Routine)
30 November 2001	Glen Mervyn, AU	daily rain	13.8 mm (0.5 in)	7.0 mm (0.28 in)	14 years	20 of 100 (Routine)
19 November 2001	Glen Mervyn, AU	daily rain	23.6 mm (0.9 in)	1.8 mm (0.07 in)	79 years	20 of 100 (Routine)
29 September 2001	Glen Mervyn, AU	daily rain	26.8 mm (1.1 in)	3.9 mm (0.15 in)	72 years	34 of 100 (Routine)
6 May 2001	Glen Mervyn, AU	daily rain	50.0 mm (2.0 in)	19.0 mm (0.7 in)	2 years	26 of 100 (Routine)
4 July 2000	Glen Mervyn, AU	daily rain	36.0 mm (1.4 in)	17.4 mm (0.7 in)	24 years	32 of 100 (Routine)
26 April 2000	Glen Mervyn, AU	daily rain	20.8 mm (0.8 in)	1.5 mm (0.06 in)	93 years	20 of 100 (Routine)
10 March 2000	Glen Mervyn, AU	daily rain	41.0 mm (1.6 in)	15.0 mm (0.6 in)	2 years	23 of 100 (Routine)
31 January 2000	Glen Mervyn, AU	daily rain	3.6 mm (0.14 in)	1.0 mm (0.04 in)	16 years	14 of 100 (Routine)
23 January 2000	Glen Mervyn, AU	daily rain	8.4 mm (0.33 in)	4.1 mm (0.16 in)	76 years	20 of 100 (Routine)
17 January 2000	Glen Mervyn, AU	daily rain	9.8 mm (0.39 in)	4.0 mm (0.16 in)	92 years	20 of 100 (Routine)
15 January 2000	Glen Mervyn, AU	daily rain	10.4 mm (0.4 in)	1.8 mm (0.07 in)	10 years	13 of 100 (Routine)
20 December 1999	Glen Mervyn, AU	daily rain	12.0 mm (0.5 in)	1.1 mm (0.04 in)	81 years	20 of 100 (Routine)
14 October 1999	Glen Mervyn, AU	daily rain	42.0 mm (1.7 in)	25.2 mm (1.0 in)	76 years	59 of 100 (Notable)
8 October 1999	Glen Mervyn, AU	daily rain	28.0 mm (1.1 in)	10.4 mm (0.4 in)	21 years	26 of 100 (Routine)
24 August 1999	Glen Mervyn, AU	daily rain	30.0 mm (1.2 in)	8.7 mm (0.34 in)	26 years	26 of 100 (Routine)
28 May 1999	Glen Mervyn, AU	daily rain	42.4 mm (1.7 in)	2.8 mm (0.11 in)	78 years	34 of 100 (Routine)
6 May 1999	Glen Mervyn, AU	daily rain	31.0 mm (1.2 in)	12.4 mm (0.5 in)	6 years	22 of 100 (Routine)
15 December 1998	Glen Mervyn, AU	daily rain	5.0 mm (0.20 in)	0.9 mm (0.04 in)	89 years	20 of 100 (Routine)

Extremes by Year

1903 to 2002

Yearly extremes at Glen Mervyn: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	121.0 mm (4.8 in)	1982	41.0 mm (1.6 in)	85
Wettest five days (Rx5day)	163.0 mm (6.4 in)	1982	82.3 mm (3.2 in)	85
Longest dry spell (CDD)	90 days	1924	47 days	85

Wettest day (Rx1day)

The wettest day of the year at Glen Mervyn, 1903 to 2002. The record is 121.0 mm (4.8 in) in 1982, marked on the chart; the median year is 41.0 mm (1.6 in).

Wettest day (Rx1day) at Glen Mervyn by year
Year	Wettest day (Rx1day)
1903	0.0 mm (0.00 in)
1907	49.8 mm (2.0 in)
1908	55.1 mm (2.2 in)
1909	51.1 mm (2.0 in)
1910	50.0 mm (2.0 in)
1911	43.7 mm (1.7 in)
1912	45.7 mm (1.8 in)
1913	45.7 mm (1.8 in)
1914	46.5 mm (1.8 in)
1915	53.3 mm (2.1 in)
1916	35.6 mm (1.4 in)
1917	56.6 mm (2.2 in)
1918	49.0 mm (1.9 in)
1919	65.3 mm (2.6 in)
1920	55.9 mm (2.2 in)
1921	36.1 mm (1.4 in)
1922	45.2 mm (1.8 in)
1923	49.5 mm (1.9 in)
1924	55.4 mm (2.2 in)
1925	35.8 mm (1.4 in)
1926	109.0 mm (4.3 in)
1927	70.1 mm (2.8 in)
1928	82.3 mm (3.2 in)
1929	62.2 mm (2.4 in)
1930	54.6 mm (2.1 in)
1931	0.0 mm (0.00 in)
1944	0.0 mm (0.00 in)
1945	0.0 mm (0.00 in)
1946	0.0 mm (0.00 in)
1947	0.0 mm (0.00 in)
1948	0.0 mm (0.00 in)
1949	0.0 mm (0.00 in)
1950	0.0 mm (0.00 in)
1951	0.0 mm (0.00 in)
1952	0.0 mm (0.00 in)
1953	0.0 mm (0.00 in)
1954	0.0 mm (0.00 in)
1955	0.0 mm (0.00 in)
1956	0.0 mm (0.00 in)
1957	0.0 mm (0.00 in)
1958	0.0 mm (0.00 in)
1959	0.0 mm (0.00 in)
1960	0.0 mm (0.00 in)
1961	0.0 mm (0.00 in)
1962	0.0 mm (0.00 in)
1963	0.0 mm (0.00 in)
1964	0.0 mm (0.00 in)
1965	0.0 mm (0.00 in)
1966	0.0 mm (0.00 in)
1967	0.0 mm (0.00 in)
1968	33.8 mm (1.3 in)
1969	37.1 mm (1.5 in)
1970	34.3 mm (1.4 in)
1971	54.6 mm (2.1 in)
1972	34.0 mm (1.3 in)
1973	35.6 mm (1.4 in)
1974	54.2 mm (2.1 in)
1975	44.2 mm (1.7 in)
1976	63.8 mm (2.5 in)
1977	46.6 mm (1.8 in)
1978	40.4 mm (1.6 in)
1979	45.2 mm (1.8 in)
1980	36.0 mm (1.4 in)
1981	53.0 mm (2.1 in)
1982	121.0 mm (4.8 in)
1983	54.6 mm (2.1 in)
1984	52.8 mm (2.1 in)
1985	60.0 mm (2.4 in)
1986	25.0 mm (1.0 in)
1987	44.6 mm (1.8 in)
1988	45.4 mm (1.8 in)
1989	50.6 mm (2.0 in)
1990	61.0 mm (2.4 in)
1991	45.0 mm (1.8 in)
1992	39.8 mm (1.6 in)
1993	69.4 mm (2.7 in)
1994	56.2 mm (2.2 in)
1995	37.2 mm (1.5 in)
1996	44.0 mm (1.7 in)
1997	40.4 mm (1.6 in)
1998	34.4 mm (1.4 in)
1999	42.4 mm (1.7 in)
2000	41.0 mm (1.6 in)
2001	50.0 mm (2.0 in)
2002	28.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Glen Mervyn, 1903 to 2002. The record is 163.0 mm (6.4 in) in 1982, marked on the chart; the median year is 82.3 mm (3.2 in).

Wettest five days (Rx5day) at Glen Mervyn by year
Year	Wettest five days (Rx5day)
1903	0.0 mm (0.00 in)
1907	113.8 mm (4.5 in)
1908	94.8 mm (3.7 in)
1909	101.0 mm (4.0 in)
1910	119.7 mm (4.7 in)
1911	98.9 mm (3.9 in)
1912	83.6 mm (3.3 in)
1913	108.8 mm (4.3 in)
1914	70.6 mm (2.8 in)
1915	92.7 mm (3.6 in)
1916	58.4 mm (2.3 in)
1917	143.8 mm (5.7 in)
1918	83.1 mm (3.3 in)
1919	87.7 mm (3.5 in)
1920	116.3 mm (4.6 in)
1921	88.7 mm (3.5 in)
1922	96.3 mm (3.8 in)
1923	89.2 mm (3.5 in)
1924	83.8 mm (3.3 in)
1925	61.6 mm (2.4 in)
1926	109.0 mm (4.3 in)
1927	116.6 mm (4.6 in)
1928	82.3 mm (3.2 in)
1929	124.9 mm (4.9 in)
1930	137.7 mm (5.4 in)
1931	0.0 mm (0.00 in)
1944	0.0 mm (0.00 in)
1945	0.0 mm (0.00 in)
1946	0.0 mm (0.00 in)
1947	0.0 mm (0.00 in)
1948	0.0 mm (0.00 in)
1949	0.0 mm (0.00 in)
1950	0.0 mm (0.00 in)
1951	0.0 mm (0.00 in)
1952	0.0 mm (0.00 in)
1953	0.0 mm (0.00 in)
1954	0.0 mm (0.00 in)
1955	0.0 mm (0.00 in)
1956	0.0 mm (0.00 in)
1957	0.0 mm (0.00 in)
1958	0.0 mm (0.00 in)
1959	0.0 mm (0.00 in)
1960	0.0 mm (0.00 in)
1961	0.0 mm (0.00 in)
1962	0.0 mm (0.00 in)
1963	0.0 mm (0.00 in)
1964	0.0 mm (0.00 in)
1965	0.0 mm (0.00 in)
1966	0.0 mm (0.00 in)
1967	0.0 mm (0.00 in)
1968	74.0 mm (2.9 in)
1969	89.7 mm (3.5 in)
1970	81.6 mm (3.2 in)
1971	91.2 mm (3.6 in)
1972	94.5 mm (3.7 in)
1973	72.7 mm (2.9 in)
1974	125.0 mm (4.9 in)
1975	87.0 mm (3.4 in)
1976	83.2 mm (3.3 in)
1977	83.4 mm (3.3 in)
1978	87.0 mm (3.4 in)
1979	70.6 mm (2.8 in)
1980	64.0 mm (2.5 in)
1981	74.6 mm (2.9 in)
1982	163.0 mm (6.4 in)
1983	104.4 mm (4.1 in)
1984	66.6 mm (2.6 in)
1985	117.0 mm (4.6 in)
1986	64.8 mm (2.6 in)
1987	86.0 mm (3.4 in)
1988	90.2 mm (3.6 in)
1989	67.2 mm (2.6 in)
1990	115.2 mm (4.5 in)
1991	85.0 mm (3.3 in)
1992	114.8 mm (4.5 in)
1993	108.4 mm (4.3 in)
1994	98.4 mm (3.9 in)
1995	85.4 mm (3.4 in)
1996	101.4 mm (4.0 in)
1997	51.6 mm (2.0 in)
1998	86.6 mm (3.4 in)
1999	80.2 mm (3.2 in)
2000	113.8 mm (4.5 in)
2001	78.0 mm (3.1 in)
2002	60.6 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Glen Mervyn, 1903 to 2002. The record is 90 days in 1924, marked on the chart; the median year is 47 days.

Longest dry spell (CDD) at Glen Mervyn by year
Year	Longest dry spell (CDD)
1903	28 days
1907	38 days
1908	39 days
1909	49 days
1910	46 days
1911	59 days
1912	47 days
1913	73 days
1914	47 days
1915	34 days
1916	41 days
1917	31 days
1918	31 days
1919	70 days
1920	52 days
1921	27 days
1922	55 days
1923	60 days
1924	90 days
1925	49 days
1926	43 days
1927	59 days
1928	45 days
1929	50 days
1930	51 days
1931	31 days
1944	60 days
1945	31 days
1946	31 days
1947	59 days
1948	60 days
1949	59 days
1950	90 days
1951	90 days
1952	60 days
1953	90 days
1954	90 days
1955	31 days
1956	31 days
1957	59 days
1958	90 days
1959	59 days
1960	61 days
1961	28 days
1962	90 days
1963	31 days
1964	31 days
1965	28 days
1966	90 days
1967	59 days
1968	38 days
1969	44 days
1970	24 days
1971	48 days
1972	77 days
1973	47 days
1974	52 days
1975	66 days
1976	48 days
1977	35 days
1978	40 days
1979	27 days
1980	32 days
1981	48 days
1982	40 days
1983	30 days
1984	34 days
1985	30 days
1986	27 days
1987	46 days
1988	28 days
1989	38 days
1990	21 days
1991	52 days
1992	31 days
1993	61 days
1994	43 days
1995	54 days
1996	40 days
1997	35 days
1998	51 days
1999	48 days
2000	38 days
2001	71 days
2002	57 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

54 years, 1907 to 2001

A day with at least 46.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 91.1 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Glen Mervyn: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	46.4 mm (1.8 in)
5 years	57.6 mm (2.3 in)
10 years	65.3 mm (2.6 in)
25 years	75.4 mm (3.0 in)
50 years	83.1 mm (3.3 in)
100 years	91.1 mm (3.6 in)	Longer than the 54 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, 54 years of values from 1907 to 2001.

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: 121.0 mm (4.8 in) in 1982; 70.1 mm (2.8 in) in 1927; 69.4 mm (2.7 in) in 1993.

Download the Data

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