Yallourn Sec Weather Records (ASN00085103)

Record envelope, standing records and threshold days for Yallourn Sec (ASN00085103), Australia, with 44 years of record.

Key Facts for Yallourn Sec

Yallourn Sec (ASN00085103) is a weather station in Australia at -38.19 latitude and 146.33 longitude, 154 m (504 ft) above sea level.
The station reports from 1949 to 1992, 44 years of record.
1,464 records set at Yallourn Sec still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Yallourn Sec set a daily record precipitation of 26.8 mm (1.1 in) on 1 January 1992.

About the Station

Location: Australia, -38.19 latitude, 146.33 longitude.
Elevation: 154 m (504 ft).
Period of record: 1949 to 1992, 44 years.
Eligible elements: tmax, tmin, 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 Yallourn Sec. 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 Yallourn Sec, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	43.0 C (109.4 F)	3.6 C (38.5 F)	n/a	n/a
Feb	41.4 C (106.5 F)	4.2 C (39.6 F)	n/a	n/a
Mar	38.2 C (100.8 F)	4.7 C (40.5 F)	n/a	n/a
Apr	32.0 C (89.6 F)	1.7 C (35.1 F)	n/a	n/a
May	25.6 C (78.1 F)	0.3 C (32.5 F)	n/a	n/a
Jun	20.7 C (69.3 F)	-1.9 C (28.6 F)	n/a	n/a
Jul	21.8 C (71.2 F)	-1.8 C (28.8 F)	n/a	n/a
Aug	23.7 C (74.7 F)	-2.8 C (27.0 F)	n/a	n/a
Sep	29.5 C (85.1 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	31.7 C (89.1 F)	0.4 C (32.7 F)	n/a	n/a
Nov	35.6 C (96.1 F)	2.0 C (35.6 F)	n/a	n/a
Dec	38.2 C (100.8 F)	4.8 C (40.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Yallourn Sec still stand. 1957 holds the most, with 78.

Standing records at Yallourn Sec by the year they were set
Year set	Standing records
1957	78
1958	55
1959	56
1960	61
1961	49
1962	52
1963	49
1964	65
1965	71
1966	53
1967	44
1968	58
1969	56
1970	35
1971	27
1972	42
1973	40
1974	36
1975	53
1976	27
1977	48
1978	53
1979	38
1980	65
1981	50
1982	55
1983	51
1984	33
1985	41
1986	23

Wettest Day of Each Month

Feb: 102.6 mm (4.0 in)

The wettest day on record for each calendar month at Yallourn Sec. The most was 102.6 mm (4.0 in) on 19 February 1951.

Record daily precipitation for each month at Yallourn Sec
Month	Record daily precipitation (mm)	Date
Jan	69.9 mm (2.8 in)	30 January 1971
Feb	102.6 mm (4.0 in)	19 February 1951
Mar	74.0 mm (2.9 in)	22 March 1983
Apr	59.8 mm (2.4 in)	21 April 1984
May	45.7 mm (1.8 in)	12 May 1956
Jun	44.6 mm (1.8 in)	29 June 1980
Jul	48.2 mm (1.9 in)	7 July 1983
Aug	43.2 mm (1.7 in)	20 August 1951
Sep	45.5 mm (1.8 in)	16 September 1957
Oct	83.1 mm (3.3 in)	21 October 1953
Nov	48.8 mm (1.9 in)	21 November 1954
Dec	61.2 mm (2.4 in)	11 December 1988

Period of Record Coverage

1957 to 1986

30 years of record at Yallourn Sec, 1957 to 1986. 1 years have data for under 90 percent of days and are left out of rankings: 1986.

Days with data per year at Yallourn Sec
Year	Days with data	Share of year	Complete
1957	364	100%	Yes
1958	333	91%	Yes
1959	349	96%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	362	99%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	272	75%	No

Latest Records

Latest records at Yallourn Sec
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 January 1992	Yallourn Sec, AU	daily rain	26.8 mm (1.1 in)	3.4 mm (0.13 in)	20 years	13 of 100 (Routine)
19 December 1991	Yallourn Sec, AU	daily rain	24.2 mm (1.0 in)	10.2 mm (0.4 in)	24 years	20 of 100 (Routine)
16 December 1991	Yallourn Sec, AU	daily rain	24.4 mm (1.0 in)	1.5 mm (0.06 in)	17 years	10 of 100 (Routine)
18 September 1991	Yallourn Sec, AU	daily rain	23.0 mm (0.9 in)	1.0 mm (0.04 in)	16 years	9 of 100 (Routine)
9 August 1991	Yallourn Sec, AU	daily rain	20.4 mm (0.8 in)	6.9 mm (0.27 in)	21 years	20 of 100 (Routine)
24 July 1991	Yallourn Sec, AU	daily rain	24.4 mm (1.0 in)	12.2 mm (0.5 in)	6 years	20 of 100 (Routine)
12 July 1991	Yallourn Sec, AU	daily rain	12.0 mm (0.5 in)	2.4 mm (0.09 in)	12 years	11 of 100 (Routine)
24 June 1991	Yallourn Sec, AU	daily rain	20.6 mm (0.8 in)	8.2 mm (0.32 in)	26 years	20 of 100 (Routine)
8 June 1991	Yallourn Sec, AU	daily rain	37.2 mm (1.5 in)	24.8 mm (1.0 in)	36 years	55 of 100 (Notable)
24 January 1991	Yallourn Sec, AU	daily rain	45.6 mm (1.8 in)	36.0 mm (1.4 in)	12 years	47 of 100 (Notable)
23 January 1991	Yallourn Sec, AU	daily rain	9.8 mm (0.39 in)	4.0 mm (0.16 in)	12 years	11 of 100 (Routine)
5 January 1991	Yallourn Sec, AU	daily rain	27.0 mm (1.1 in)	14.4 mm (0.6 in)	1 year	21 of 100 (Routine)
24 November 1990	Yallourn Sec, AU	daily rain	13.4 mm (0.5 in)	4.2 mm (0.17 in)	15 years	14 of 100 (Routine)
23 November 1990	Yallourn Sec, AU	daily rain	37.0 mm (1.5 in)	20.7 mm (0.8 in)	21 years	39 of 100 (Notable)
12 October 1990	Yallourn Sec, AU	daily rain	37.4 mm (1.5 in)	16.6 mm (0.7 in)	32 years	38 of 100 (Notable)
11 October 1990	Yallourn Sec, AU	daily rain	27.6 mm (1.1 in)	7.5 mm (0.30 in)	32 years	24 of 100 (Routine)
6 October 1990	Yallourn Sec, AU	daily rain	16.4 mm (0.6 in)	2.7 mm (0.11 in)	17 years	13 of 100 (Routine)
18 July 1990	Yallourn Sec, AU	daily rain	19.8 mm (0.8 in)	1.0 mm (0.04 in)	25 years	12 of 100 (Routine)
3 July 1990	Yallourn Sec, AU	daily rain	20.4 mm (0.8 in)	8.2 mm (0.32 in)	9 years	19 of 100 (Routine)
28 June 1990	Yallourn Sec, AU	daily rain	19.0 mm (0.7 in)	9.1 mm (0.36 in)	36 years	20 of 100 (Routine)

Climate Trend

28 complete years, 1957 to 1985

One stripe for each of 28 complete years at Yallourn Sec, 1957 to 1985. Blue stripes are years cooler than the station's own mean of 13.6 C (56.4 F); red stripes are warmer. The coolest year was 1957, at 13.1 C (55.5 F), and the warmest was 1961, at 14.4 C (57.9 F). The strongest colour marks a difference of 0.8 C (1.4 F).

Annual mean temperature at Yallourn Sec as warming stripes, 1957 to 1985
Year	Annual mean temperature	Difference from the station mean
1957	13.1 C	-0.51 C
1959	13.8 C	+0.24 C
1960	13.3 C	-0.23 C
1961	14.4 C	+0.80 C
1962	13.7 C	+0.15 C
1963	13.6 C	+0.07 C
1964	13.1 C	-0.47 C
1965	13.3 C	-0.27 C
1966	13.1 C	-0.43 C
1967	13.5 C	-0.10 C
1968	13.8 C	+0.23 C
1969	13.5 C	-0.09 C
1970	13.3 C	-0.31 C
1971	13.6 C	+0.06 C
1972	13.9 C	+0.37 C
1973	13.8 C	+0.21 C
1974	13.7 C	+0.17 C
1975	13.7 C	+0.09 C
1976	13.4 C	-0.16 C
1977	13.4 C	-0.17 C
1978	13.5 C	-0.05 C
1979	13.8 C	+0.20 C
1980	13.8 C	+0.27 C
1981	13.9 C	+0.32 C
1982	13.8 C	+0.20 C
1983	13.6 C	-0.01 C
1984	13.1 C	-0.49 C
1985	13.6 C	0.00 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

1949 to 1992

Yearly extremes at Yallourn Sec: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.0 C (109.4 F)	1982	37.8 C (100.0 F)	30
Coldest night (TNn)	-2.8 C (27.0 F)	1974	-0.1 C (31.8 F)	30
Wettest day (Rx1day)	102.6 mm (4.0 in)	1951	40.2 mm (1.6 in)	44
Wettest five days (Rx5day)	169.5 mm (6.7 in)	1951	69.9 mm (2.8 in)	44
Longest dry spell (CDD)	36 days	1968	18 days	44

Hottest day (TXx)

The hottest day of the year at Yallourn Sec, 1949 to 1992. The record is 43.0 C (109.4 F) in 1982, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Yallourn Sec by year
Year	Hottest day (TXx)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	34.7 C (94.5 F)
1958	35.0 C (95.0 F)
1959	40.6 C (105.1 F)
1960	37.8 C (100.0 F)
1961	38.6 C (101.5 F)
1962	37.7 C (99.9 F)
1963	33.3 C (91.9 F)
1964	37.8 C (100.0 F)
1965	38.3 C (100.9 F)
1966	37.2 C (99.0 F)
1967	38.3 C (100.9 F)
1968	41.7 C (107.1 F)
1969	35.8 C (96.4 F)
1970	33.4 C (92.1 F)
1971	37.2 C (99.0 F)
1972	37.0 C (98.6 F)
1973	38.8 C (101.8 F)
1974	35.0 C (95.0 F)
1975	37.0 C (98.6 F)
1976	37.8 C (100.0 F)
1977	38.8 C (101.8 F)
1978	38.5 C (101.3 F)
1979	39.0 C (102.2 F)
1980	37.0 C (98.6 F)
1981	40.2 C (104.4 F)
1982	43.0 C (109.4 F)
1983	41.2 C (106.2 F)
1984	33.7 C (92.7 F)
1985	39.2 C (102.6 F)
1986	37.0 C (98.6 F)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a

Coldest night (TNn)

The coldest night of the year at Yallourn Sec, 1949 to 1992. The record is -2.8 C (27.0 F) in 1974, marked on the chart; the median year is -0.1 C (31.8 F).

Coldest night (TNn) at Yallourn Sec by year
Year	Coldest night (TNn)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	-1.7 C (28.9 F)
1958	-0.6 C (30.9 F)
1959	-0.6 C (30.9 F)
1960	-0.4 C (31.3 F)
1961	1.4 C (34.5 F)
1962	-0.1 C (31.8 F)
1963	-1.9 C (28.6 F)
1964	0.0 C (32.0 F)
1965	-1.7 C (28.9 F)
1966	-0.3 C (31.5 F)
1967	0.6 C (33.1 F)
1968	0.6 C (33.1 F)
1969	-1.4 C (29.5 F)
1970	-0.1 C (31.8 F)
1971	-1.7 C (28.9 F)
1972	0.7 C (33.3 F)
1973	-0.4 C (31.3 F)
1974	-2.8 C (27.0 F)
1975	0.8 C (33.4 F)
1976	0.0 C (32.0 F)
1977	-1.5 C (29.3 F)
1978	0.2 C (32.4 F)
1979	-0.1 C (31.8 F)
1980	1.0 C (33.8 F)
1981	0.5 C (32.9 F)
1982	-1.0 C (30.2 F)
1983	-1.8 C (28.8 F)
1984	0.5 C (32.9 F)
1985	0.0 C (32.0 F)
1986	0.0 C (32.0 F)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a

Wettest day (Rx1day)

The wettest day of the year at Yallourn Sec, 1949 to 1992. The record is 102.6 mm (4.0 in) in 1951, marked on the chart; the median year is 40.2 mm (1.6 in).

Wettest day (Rx1day) at Yallourn Sec by year
Year	Wettest day (Rx1day)
1949	29.5 mm (1.2 in)
1950	52.8 mm (2.1 in)
1951	102.6 mm (4.0 in)
1952	60.2 mm (2.4 in)
1953	83.1 mm (3.3 in)
1954	48.8 mm (1.9 in)
1955	57.9 mm (2.3 in)
1956	45.7 mm (1.8 in)
1957	45.5 mm (1.8 in)
1958	29.2 mm (1.1 in)
1959	40.4 mm (1.6 in)
1960	39.4 mm (1.6 in)
1961	38.1 mm (1.5 in)
1962	39.9 mm (1.6 in)
1963	57.9 mm (2.3 in)
1964	31.2 mm (1.2 in)
1965	35.8 mm (1.4 in)
1966	45.0 mm (1.8 in)
1967	34.8 mm (1.4 in)
1968	30.5 mm (1.2 in)
1969	38.1 mm (1.5 in)
1970	55.9 mm (2.2 in)
1971	69.9 mm (2.8 in)
1972	31.5 mm (1.2 in)
1973	43.7 mm (1.7 in)
1974	39.2 mm (1.5 in)
1975	35.0 mm (1.4 in)
1976	37.2 mm (1.5 in)
1977	36.6 mm (1.4 in)
1978	41.4 mm (1.6 in)
1979	32.2 mm (1.3 in)
1980	48.2 mm (1.9 in)
1981	36.2 mm (1.4 in)
1982	33.0 mm (1.3 in)
1983	74.0 mm (2.9 in)
1984	59.8 mm (2.4 in)
1985	32.2 mm (1.3 in)
1986	39.6 mm (1.6 in)
1987	28.4 mm (1.1 in)
1988	61.2 mm (2.4 in)
1989	54.4 mm (2.1 in)
1990	52.4 mm (2.1 in)
1991	45.6 mm (1.8 in)
1992	26.8 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Yallourn Sec, 1949 to 1992. The record is 169.5 mm (6.7 in) in 1951, marked on the chart; the median year is 69.9 mm (2.8 in).

Wettest five days (Rx5day) at Yallourn Sec by year
Year	Wettest five days (Rx5day)
1949	44.4 mm (1.7 in)
1950	78.4 mm (3.1 in)
1951	169.5 mm (6.7 in)
1952	120.4 mm (4.7 in)
1953	97.6 mm (3.8 in)
1954	99.6 mm (3.9 in)
1955	85.8 mm (3.4 in)
1956	77.5 mm (3.1 in)
1957	89.4 mm (3.5 in)
1958	60.1 mm (2.4 in)
1959	61.2 mm (2.4 in)
1960	108.2 mm (4.3 in)
1961	61.2 mm (2.4 in)
1962	53.6 mm (2.1 in)
1963	88.3 mm (3.5 in)
1964	73.4 mm (2.9 in)
1965	71.4 mm (2.8 in)
1966	54.9 mm (2.2 in)
1967	45.2 mm (1.8 in)
1968	64.0 mm (2.5 in)
1969	68.1 mm (2.7 in)
1970	129.3 mm (5.1 in)
1971	91.2 mm (3.6 in)
1972	47.3 mm (1.9 in)
1973	68.3 mm (2.7 in)
1974	66.0 mm (2.6 in)
1975	53.4 mm (2.1 in)
1976	59.4 mm (2.3 in)
1977	89.0 mm (3.5 in)
1978	70.0 mm (2.8 in)
1979	50.3 mm (2.0 in)
1980	68.8 mm (2.7 in)
1981	58.9 mm (2.3 in)
1982	60.6 mm (2.4 in)
1983	97.4 mm (3.8 in)
1984	77.4 mm (3.0 in)
1985	70.0 mm (2.8 in)
1986	76.4 mm (3.0 in)
1987	52.4 mm (2.1 in)
1988	82.0 mm (3.2 in)
1989	61.4 mm (2.4 in)
1990	91.0 mm (3.6 in)
1991	69.8 mm (2.7 in)
1992	39.0 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Yallourn Sec, 1949 to 1992. The record is 36 days in 1968, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Yallourn Sec by year
Year	Longest dry spell (CDD)
1949	10 days
1950	21 days
1951	33 days
1952	15 days
1953	18 days
1954	15 days
1955	25 days
1956	14 days
1957	19 days
1958	28 days
1959	25 days
1960	24 days
1961	15 days
1962	18 days
1963	28 days
1964	17 days
1965	23 days
1966	12 days
1967	31 days
1968	36 days
1969	15 days
1970	27 days
1971	18 days
1972	25 days
1973	16 days
1974	35 days
1975	12 days
1976	22 days
1977	14 days
1978	12 days
1979	13 days
1980	16 days
1981	17 days
1982	20 days
1983	26 days
1984	18 days
1985	17 days
1986	29 days
1987	17 days
1988	18 days
1989	20 days
1990	31 days
1991	16 days
1992	18 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

41 years, 1950 to 1991

A day with at least 41.9 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 110.2 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Yallourn Sec: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	41.9 mm (1.6 in)
5 years	54.7 mm (2.2 in)
10 years	65.1 mm (2.6 in)
25 years	80.7 mm (3.2 in)
50 years	94.4 mm (3.7 in)	Longer than the 41 years of record
100 years	110.2 mm (4.3 in)	Longer than the 41 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, 41 years of values from 1950 to 1991.

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: 102.6 mm (4.0 in) in 1951; 83.1 mm (3.3 in) in 1953; 74.0 mm (2.9 in) in 1983.

Download the Data

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