Mount Dandenong Gtv9 Weather Records (ASN00086243)

Record envelope, standing records and threshold days for Mount Dandenong Gtv9 (ASN00086243), Australia, with 40 years of record.

Key Facts for Mount Dandenong Gtv9

Mount Dandenong Gtv9 (ASN00086243) is a weather station in Australia at -37.83 latitude and 145.35 longitude, 600 m (1,969 ft) above sea level.
The station reports from 1968 to 2007, 40 years of record.
1,464 records set at Mount Dandenong Gtv9 still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Australia, -37.83 latitude, 145.35 longitude.
Elevation: 600 m (1,969 ft).
Period of record: 1968 to 2007, 40 years.
Eligible elements: none yet.

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 Mount Dandenong Gtv9. 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 Mount Dandenong Gtv9, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.3 C (99.1 F)	4.0 C (39.2 F)	n/a	n/a
Feb	39.3 C (102.7 F)	4.7 C (40.5 F)	n/a	n/a
Mar	33.6 C (92.5 F)	1.5 C (34.7 F)	n/a	n/a
Apr	28.0 C (82.4 F)	0.7 C (33.3 F)	n/a	n/a
May	20.3 C (68.5 F)	-0.4 C (31.3 F)	n/a	n/a
Jun	15.0 C (59.0 F)	-1.0 C (30.2 F)	n/a	n/a
Jul	16.0 C (60.8 F)	-2.5 C (27.5 F)	n/a	n/a
Aug	20.0 C (68.0 F)	-2.0 C (28.4 F)	n/a	n/a
Sep	22.7 C (72.9 F)	-1.8 C (28.8 F)	n/a	n/a
Oct	28.7 C (83.7 F)	-0.6 C (30.9 F)	n/a	n/a
Nov	33.2 C (91.8 F)	0.5 C (32.9 F)	n/a	n/a
Dec	36.2 C (97.2 F)	2.3 C (36.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mount Dandenong Gtv9 still stand. 1968 holds the most, with 101.

Standing records at Mount Dandenong Gtv9 by the year they were set
Year set	Standing records
1968	101
1969	84
1970	62
1971	64
1972	80
1973	67
1974	72
1975	76
1976	54
1977	78
1978	83
1979	59
1980	94
1981	78
1982	98
1983	87
1984	72
1985	89
1986	66

Wettest Day of Each Month

Sep: 117.0 mm (4.6 in)

The wettest day on record for each calendar month at Mount Dandenong Gtv9. The most was 117.0 mm (4.6 in) on 19 September 1984.

Record daily precipitation for each month at Mount Dandenong Gtv9
Month	Record daily precipitation (mm)	Date
Jan	48.8 mm (1.9 in)	21 January 1968
Feb	113.8 mm (4.5 in)	3 February 2005
Mar	75.4 mm (3.0 in)	22 March 1970
Apr	107.4 mm (4.2 in)	8 April 1977
May	69.1 mm (2.7 in)	6 May 1970
Jun	49.8 mm (2.0 in)	1 June 1977
Jul	62.6 mm (2.5 in)	29 July 1984
Aug	58.8 mm (2.3 in)	7 August 1978
Sep	117.0 mm (4.6 in)	19 September 1984
Oct	46.6 mm (1.8 in)	25 October 2000
Nov	75.9 mm (3.0 in)	8 November 1971
Dec	58.8 mm (2.3 in)	25 December 2006

Period of Record Coverage

1968 to 1986

19 years of record at Mount Dandenong Gtv9, 1968 to 1986. Every year has data for at least 90 percent of its days.

Days with data per year at Mount Dandenong Gtv9
Year	Days with data	Share of year	Complete
1968	366	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	363	99%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	363	99%	Yes
1980	364	99%	Yes
1981	365	100%	Yes
1982	363	99%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	355	97%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

18 complete years, 1968 to 1986

One stripe for each of 18 complete years at Mount Dandenong Gtv9, 1968 to 1986. Blue stripes are years cooler than the station's own mean of 11.5 C (52.6 F); red stripes are warmer. The coolest year was 1986, at 10.5 C (51.0 F), and the warmest was 1972, at 11.9 C (53.4 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Mount Dandenong Gtv9 as warming stripes, 1968 to 1986
Year	Annual mean temperature	Difference from the station mean
1968	11.5 C	+0.00 C
1969	11.4 C	-0.02 C
1970	11.1 C	-0.39 C
1971	11.5 C	+0.04 C
1972	11.9 C	+0.44 C
1973	11.8 C	+0.30 C
1974	11.7 C	+0.26 C
1975	11.6 C	+0.16 C
1976	11.2 C	-0.22 C
1977	11.1 C	-0.32 C
1978	11.2 C	-0.31 C
1979	11.5 C	+0.06 C
1980	11.8 C	+0.37 C
1981	11.9 C	+0.41 C
1982	11.8 C	+0.31 C
1983	11.4 C	-0.05 C
1985	11.3 C	-0.13 C
1986	10.5 C	-0.92 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1968 to 2007

Yearly extremes at Mount Dandenong Gtv9: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.3 C (102.7 F)	1968	35.4 C (95.7 F)	19
Coldest night (TNn)	-2.5 C (27.5 F)	1986	-0.6 C (30.9 F)	19
Wettest day (Rx1day)	117.0 mm (4.6 in)	1984	58.8 mm (2.3 in)	27
Wettest five days (Rx5day)	208.8 mm (8.2 in)	1984	100.0 mm (3.9 in)	27
Longest dry spell (CDD)	30 days	1974	17 days	27

Hottest day (TXx)

The hottest day of the year at Mount Dandenong Gtv9, 1968 to 2007. The record is 39.3 C (102.7 F) in 1968, marked on the chart; the median year is 35.4 C (95.7 F).

Hottest day (TXx) at Mount Dandenong Gtv9 by year
Year	Hottest day (TXx)
1968	39.3 C (102.7 F)
1969	33.7 C (92.7 F)
1970	33.8 C (92.8 F)
1971	33.8 C (92.8 F)
1972	36.2 C (97.2 F)
1973	36.7 C (98.1 F)
1974	32.5 C (90.5 F)
1975	35.9 C (96.6 F)
1976	34.7 C (94.5 F)
1977	35.7 C (96.3 F)
1978	32.8 C (91.0 F)
1979	35.4 C (95.7 F)
1980	34.8 C (94.6 F)
1981	37.3 C (99.1 F)
1982	37.3 C (99.1 F)
1983	37.6 C (99.7 F)
1984	30.4 C (86.7 F)
1985	35.6 C (96.1 F)
1986	31.7 C (89.1 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a

Coldest night (TNn)

The coldest night of the year at Mount Dandenong Gtv9, 1968 to 2007. The record is -2.5 C (27.5 F) in 1986, marked on the chart; the median year is -0.6 C (30.9 F).

Coldest night (TNn) at Mount Dandenong Gtv9 by year
Year	Coldest night (TNn)
1968	-0.6 C (30.9 F)
1969	-1.8 C (28.8 F)
1970	-1.0 C (30.2 F)
1971	-0.4 C (31.3 F)
1972	-0.6 C (30.9 F)
1973	0.6 C (33.1 F)
1974	-1.7 C (28.9 F)
1975	0.2 C (32.4 F)
1976	0.4 C (32.7 F)
1977	-0.4 C (31.3 F)
1978	-0.8 C (30.6 F)
1979	0.6 C (33.1 F)
1980	0.5 C (32.9 F)
1981	0.4 C (32.7 F)
1982	-2.0 C (28.4 F)
1983	-2.3 C (27.9 F)
1984	-1.0 C (30.2 F)
1985	0.4 C (32.7 F)
1986	-2.5 C (27.5 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a

Wettest day (Rx1day)

The wettest day of the year at Mount Dandenong Gtv9, 1968 to 2007. The record is 117.0 mm (4.6 in) in 1984, marked on the chart; the median year is 58.8 mm (2.3 in).

Wettest day (Rx1day) at Mount Dandenong Gtv9 by year
Year	Wettest day (Rx1day)
1968	48.8 mm (1.9 in)
1969	42.9 mm (1.7 in)
1970	75.4 mm (3.0 in)
1971	75.9 mm (3.0 in)
1972	37.3 mm (1.5 in)
1973	102.1 mm (4.0 in)
1974	61.2 mm (2.4 in)
1975	43.6 mm (1.7 in)
1976	34.2 mm (1.3 in)
1977	107.4 mm (4.2 in)
1978	59.0 mm (2.3 in)
1979	39.2 mm (1.5 in)
1980	46.6 mm (1.8 in)
1981	70.8 mm (2.8 in)
1982	72.6 mm (2.9 in)
1983	51.6 mm (2.0 in)
1984	117.0 mm (4.6 in)
1985	82.4 mm (3.2 in)
1986	95.4 mm (3.8 in)
1999	67.2 mm (2.6 in)
2000	46.6 mm (1.8 in)
2001	48.0 mm (1.9 in)
2002	38.0 mm (1.5 in)
2004	54.0 mm (2.1 in)
2005	113.8 mm (4.5 in)
2006	58.8 mm (2.3 in)
2007	25.0 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mount Dandenong Gtv9, 1968 to 2007. The record is 208.8 mm (8.2 in) in 1984, marked on the chart; the median year is 100.0 mm (3.9 in).

Wettest five days (Rx5day) at Mount Dandenong Gtv9 by year
Year	Wettest five days (Rx5day)
1968	75.9 mm (3.0 in)
1969	85.8 mm (3.4 in)
1970	154.5 mm (6.1 in)
1971	149.4 mm (5.9 in)
1972	72.4 mm (2.9 in)
1973	146.3 mm (5.8 in)
1974	122.6 mm (4.8 in)
1975	79.9 mm (3.1 in)
1976	78.2 mm (3.1 in)
1977	122.0 mm (4.8 in)
1978	140.4 mm (5.5 in)
1979	59.4 mm (2.3 in)
1980	110.2 mm (4.3 in)
1981	92.8 mm (3.7 in)
1982	117.2 mm (4.6 in)
1983	87.8 mm (3.5 in)
1984	208.8 mm (8.2 in)
1985	127.0 mm (5.0 in)
1986	154.2 mm (6.1 in)
1999	76.6 mm (3.0 in)
2000	91.4 mm (3.6 in)
2001	123.6 mm (4.9 in)
2002	96.6 mm (3.8 in)
2004	100.0 mm (3.9 in)
2005	201.6 mm (7.9 in)
2006	81.2 mm (3.2 in)
2007	54.2 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mount Dandenong Gtv9, 1968 to 2007. The record is 30 days in 1974, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Mount Dandenong Gtv9 by year
Year	Longest dry spell (CDD)
1968	22 days
1969	14 days
1970	16 days
1971	17 days
1972	20 days
1973	15 days
1974	30 days
1975	19 days
1976	15 days
1977	22 days
1978	10 days
1979	13 days
1980	12 days
1981	16 days
1982	20 days
1983	26 days
1984	18 days
1985	21 days
1986	20 days
1999	10 days
2000	12 days
2001	29 days
2002	19 days
2004	15 days
2005	17 days
2006	12 days
2007	19 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.

Download the Data

Data for Mount Dandenong Gtv9 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mount Dandenong Gtv9 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).