Tarcoola Weather Records (ASN00016044)

Record envelope, standing records and threshold days for Tarcoola (ASN00016044), Australia, with 96 years of record.

Key Facts for Tarcoola

Tarcoola (ASN00016044) is a weather station in Australia at -30.71 latitude and 134.57 longitude, 120 m (392 ft) above sea level.
The station reports from 1904 to 1999, 96 years of record.
1,464 records set at Tarcoola still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tarcoola set a daily record low minimum temperature of -0.4 C (31.3 F) on 27 July 1999.

About the Station

Location: Australia, -30.71 latitude, 134.57 longitude.
Elevation: 120 m (392 ft).
Period of record: 1904 to 1999, 96 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 Tarcoola. 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 Tarcoola, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	48.5 C (119.3 F)	6.5 C (43.7 F)	n/a	n/a
Feb	47.9 C (118.2 F)	8.7 C (47.7 F)	n/a	n/a
Mar	45.7 C (114.3 F)	6.1 C (43.0 F)	n/a	n/a
Apr	40.5 C (104.9 F)	1.8 C (35.2 F)	n/a	n/a
May	34.0 C (93.2 F)	-1.4 C (29.5 F)	n/a	n/a
Jun	29.1 C (84.4 F)	-3.0 C (26.6 F)	n/a	n/a
Jul	30.7 C (87.3 F)	-4.8 C (23.4 F)	n/a	n/a
Aug	33.4 C (92.1 F)	-2.2 C (28.0 F)	n/a	n/a
Sep	39.7 C (103.5 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	45.0 C (113.0 F)	1.8 C (35.2 F)	n/a	n/a
Nov	47.9 C (118.2 F)	4.5 C (40.1 F)	n/a	n/a
Dec	47.0 C (116.6 F)	7.0 C (44.6 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tarcoola still stand. 1970 holds the most, with 56.

Standing records at Tarcoola by the year they were set
Year set	Standing records
1962	30
1963	45
1964	55
1965	54
1966	44
1967	34
1968	50
1969	46
1970	56
1971	34
1972	35
1973	39
1974	35
1975	40
1976	40
1977	36
1978	38
1979	28
1980	46
1981	43
1982	30
1983	29
1984	22
1985	41
1986	32
1987	28
1988	41
1989	35
1990	53
1991	35
1992	33
1993	35
1994	44
1995	46
1996	42
1997	27
1998	33
1999	30

All-Time Record Progression

1 new records

1 all-time records were set at Tarcoola between 17 February 1946 and 17 February 1946. Each dot is a new record.

Wettest Day of Each Month

Feb: 141.2 mm (5.6 in)

The wettest day on record for each calendar month at Tarcoola. The most was 141.2 mm (5.6 in) on 17 February 1946.

Record daily precipitation for each month at Tarcoola
Month	Record daily precipitation (mm)	Date
Jan	44.5 mm (1.8 in)	19 January 1937
Feb	141.2 mm (5.6 in)	17 February 1946
Mar	93.0 mm (3.7 in)	14 March 1989
Apr	53.3 mm (2.1 in)	19 April 1961
May	71.9 mm (2.8 in)	31 May 1920
Jun	37.1 mm (1.5 in)	9 June 1927
Jul	23.4 mm (0.9 in)	17 July 1916
Aug	38.1 mm (1.5 in)	4 August 1958
Sep	45.5 mm (1.8 in)	26 September 1964
Oct	38.4 mm (1.5 in)	8 October 1992
Nov	56.6 mm (2.2 in)	24 November 1971
Dec	55.4 mm (2.2 in)	15 December 1945

Period of Record Coverage

1962 to 1999

38 years of record at Tarcoola, 1962 to 1999. 3 years have data for under 90 percent of days and are left out of rankings: 1997, 1998, 1999.

Days with data per year at Tarcoola
Year	Days with data	Share of year	Complete
1962	365	100%	Yes
1963	363	99%	Yes
1964	365	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	362	99%	Yes
1968	366	100%	Yes
1969	363	99%	Yes
1970	362	99%	Yes
1971	362	99%	Yes
1972	364	99%	Yes
1973	364	100%	Yes
1974	354	97%	Yes
1975	351	96%	Yes
1976	343	94%	Yes
1977	362	99%	Yes
1978	352	96%	Yes
1979	360	99%	Yes
1980	366	100%	Yes
1981	359	98%	Yes
1982	355	97%	Yes
1983	346	95%	Yes
1984	352	96%	Yes
1985	358	98%	Yes
1986	350	96%	Yes
1987	332	91%	Yes
1988	363	99%	Yes
1989	363	99%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	364	100%	Yes
1994	364	100%	Yes
1995	357	98%	Yes
1996	343	94%	Yes
1997	293	80%	No
1998	267	73%	No
1999	211	58%	No

Latest Records

Latest records at Tarcoola
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 July 1999	Tarcoola, AU	daily low min	-0.4 C (31.3 F)	0.5 C (0.9 F)	28 years	12 of 100 (Routine)
24 July 1999	Tarcoola, AU	daily low min	-1.6 C (29.1 F)	0.1 C (0.2 F)	21 years	9 of 100 (Routine)
5 June 1999	Tarcoola, AU	daily rain (Tie)	9.0 mm (0.35 in)	tie	4 years	2 of 100 (Routine)
4 June 1999	Tarcoola, AU	daily low max	13.8 C (56.8 F)	0.6 C (1.1 F)	34 years	15 of 100 (Routine)
29 May 1999	Tarcoola, AU	daily high min	17.0 C (62.6 F)	2.0 C (3.6 F)	20 years	14 of 100 (Routine)
22 May 1999	Tarcoola, AU	daily high min	15.6 C (60.1 F)	1.1 C (2.0 F)	20 years	11 of 100 (Routine)
19 May 1999	Tarcoola, AU	daily high max	32.4 C (90.3 F)	3.7 C (6.7 F)	24 years	19 of 100 (Routine)
19 May 1999	Tarcoola, AU	daily high min	13.6 C (56.5 F)	0.3 C (0.5 F)	10 years	6 of 100 (Routine)
18 May 1999	Tarcoola, AU	daily high max	30.7 C (87.3 F)	0.9 C (1.6 F)	16 years	10 of 100 (Routine)
15 May 1999	Tarcoola, AU	daily high max	26.9 C (80.4 F)	0.3 C (0.5 F)	32 years	12 of 100 (Routine)
2 May 1999	Tarcoola, AU	daily low min	3.0 C (37.4 F)	0.8 C (1.4 F)	21 years	11 of 100 (Routine)
30 April 1999	Tarcoola, AU	daily low min	4.6 C (40.3 F)	0.8 C (1.4 F)	28 years	13 of 100 (Routine)
29 April 1999	Tarcoola, AU	daily low min	3.1 C (37.6 F)	1.7 C (3.1 F)	22 years	13 of 100 (Routine)
28 April 1999	Tarcoola, AU	daily low min	3.4 C (38.1 F)	1.6 C (2.9 F)	21 years	13 of 100 (Routine)
27 April 1999	Tarcoola, AU	daily low max (Tie)	19.4 C (66.9 F)	tie	36 years	3 of 100 (Routine)
25 April 1999	Tarcoola, AU	daily low min	4.4 C (39.9 F)	0.6 C (1.1 F)	13 years	8 of 100 (Routine)
24 April 1999	Tarcoola, AU	daily low min	2.7 C (36.9 F)	2.9 C (5.2 F)	32 years	19 of 100 (Routine)
23 April 1999	Tarcoola, AU	monthly low min	1.8 C (35.2 F)	1.4 C (2.5 F)	28 years	24 of 100 (Routine)
1 April 1999	Tarcoola, AU	daily low max	21.4 C (70.5 F)	0.9 C (1.6 F)	24 years	12 of 100 (Routine)
30 March 1999	Tarcoola, AU	daily low min	8.7 C (47.7 F)	0.2 C (0.4 F)	36 years	14 of 100 (Routine)

Climate Trend

32 complete years, 1963 to 1996

One stripe for each of 32 complete years at Tarcoola, 1963 to 1996. Blue stripes are years cooler than the station's own mean of 19.3 C (66.8 F); red stripes are warmer. The coolest year was 1976, at 18.4 C (65.1 F), and the warmest was 1988, at 20.0 C (68.0 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Tarcoola as warming stripes, 1963 to 1996
Year	Annual mean temperature	Difference from the station mean
1963	19.7 C	+0.36 C
1964	18.6 C	-0.72 C
1965	19.9 C	+0.54 C
1966	18.7 C	-0.64 C
1967	19.1 C	-0.27 C
1968	19.1 C	-0.26 C
1969	18.7 C	-0.69 C
1970	18.5 C	-0.82 C
1971	19.1 C	-0.28 C
1972	19.2 C	-0.11 C
1973	19.7 C	+0.36 C
1974	19.0 C	-0.39 C
1975	19.0 C	-0.33 C
1976	18.4 C	-0.95 C
1977	19.6 C	+0.30 C
1978	18.7 C	-0.60 C
1979	19.7 C	+0.35 C
1980	20.0 C	+0.65 C
1981	20.0 C	+0.62 C
1982	19.8 C	+0.50 C
1983	19.9 C	+0.52 C
1984	19.2 C	-0.12 C
1985	19.5 C	+0.20 C
1986	19.6 C	+0.21 C
1988	20.0 C	+0.65 C
1989	19.1 C	-0.26 C
1990	20.0 C	+0.63 C
1992	18.7 C	-0.64 C
1993	19.7 C	+0.32 C
1994	19.6 C	+0.27 C
1995	19.6 C	+0.28 C
1996	19.8 C	+0.47 C

The annual mean temperature here has risen by 0.21 C (0.04 to 0.38) per decade over 1963 to 1996. In Fahrenheit: 0.4 F (0.1 to 0.7) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Tarcoola
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.21 C (0.04 to 0.38) per decade	0.4 F (0.1 to 0.7) per decade	1963 to 1996	32	Rise
Mean daily maximum	0.3 C (0.1 to 0.5) per decade	0.6 F (0.2 to 1.0) per decade	1963 to 1996	32	Rise
Mean daily minimum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.6) per decade	1963 to 1996	32	Not clearly different from zero

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

1904 to 1999

Yearly extremes at Tarcoola: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.5 C (119.3 F)	1982	45.6 C (114.1 F)	38
Coldest night (TNn)	-4.8 C (23.4 F)	1976	-1.2 C (29.8 F)	38
Wettest day (Rx1day)	141.2 mm (5.6 in)	1946	23.8 mm (0.9 in)	94
Wettest five days (Rx5day)	186.0 mm (7.3 in)	1921	34.1 mm (1.3 in)	94
Longest dry spell (CDD)	133 days	1970	61 days	94

Hottest day (TXx)

The hottest day of the year at Tarcoola, 1904 to 1999. The record is 48.5 C (119.3 F) in 1982, marked on the chart; the median year is 45.6 C (114.1 F).

Hottest day (TXx) at Tarcoola by year
Year	Hottest day (TXx)
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1958	n/a
1960	n/a
1961	n/a
1962	45.0 C (113.0 F)
1963	44.4 C (111.9 F)
1964	46.7 C (116.1 F)
1965	46.1 C (115.0 F)
1966	44.4 C (111.9 F)
1967	42.2 C (108.0 F)
1968	45.6 C (114.1 F)
1969	44.6 C (112.3 F)
1970	44.5 C (112.1 F)
1971	45.4 C (113.7 F)
1972	44.8 C (112.6 F)
1973	46.4 C (115.5 F)
1974	40.6 C (105.1 F)
1975	43.7 C (110.7 F)
1976	45.3 C (113.5 F)
1977	44.0 C (111.2 F)
1978	45.7 C (114.3 F)
1979	47.0 C (116.6 F)
1980	44.0 C (111.2 F)
1981	46.3 C (115.3 F)
1982	48.5 C (119.3 F)
1983	46.8 C (116.2 F)
1984	44.2 C (111.6 F)
1985	47.2 C (117.0 F)
1986	45.7 C (114.3 F)
1987	43.6 C (110.5 F)
1988	46.4 C (115.5 F)
1989	44.6 C (112.3 F)
1990	47.9 C (118.2 F)
1991	45.6 C (114.1 F)
1992	47.9 C (118.2 F)
1993	47.9 C (118.2 F)
1994	47.0 C (116.6 F)
1995	45.7 C (114.3 F)
1996	45.8 C (114.4 F)
1997	44.0 C (111.2 F)
1998	43.3 C (109.9 F)
1999	45.9 C (114.6 F)

Coldest night (TNn)

The coldest night of the year at Tarcoola, 1904 to 1999. The record is -4.8 C (23.4 F) in 1976, marked on the chart; the median year is -1.2 C (29.8 F).

Coldest night (TNn) at Tarcoola by year
Year	Coldest night (TNn)
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1958	n/a
1960	n/a
1961	n/a
1962	-1.1 C (30.0 F)
1963	-0.6 C (30.9 F)
1964	-0.6 C (30.9 F)
1965	-2.8 C (27.0 F)
1966	-1.1 C (30.0 F)
1967	-1.7 C (28.9 F)
1968	-1.3 C (29.7 F)
1969	-1.4 C (29.5 F)
1970	-3.2 C (26.2 F)
1971	-1.2 C (29.8 F)
1972	-2.6 C (27.3 F)
1973	-1.4 C (29.5 F)
1974	-2.5 C (27.5 F)
1975	-3.0 C (26.6 F)
1976	-4.8 C (23.4 F)
1977	-2.0 C (28.4 F)
1978	0.0 C (32.0 F)
1979	-0.1 C (31.8 F)
1980	0.4 C (32.7 F)
1981	-0.4 C (31.3 F)
1982	0.2 C (32.4 F)
1983	-2.5 C (27.5 F)
1984	-0.7 C (30.7 F)
1985	-2.0 C (28.4 F)
1986	-0.5 C (31.1 F)
1987	-1.6 C (29.1 F)
1988	-1.2 C (29.8 F)
1989	-1.6 C (29.1 F)
1990	-2.3 C (27.9 F)
1991	1.0 C (33.8 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	0.0 C (32.0 F)
1995	0.6 C (33.1 F)
1996	0.1 C (32.2 F)
1997	-4.0 C (24.8 F)
1998	0.5 C (32.9 F)
1999	-1.6 C (29.1 F)

Wettest day (Rx1day)

The wettest day of the year at Tarcoola, 1904 to 1999. The record is 141.2 mm (5.6 in) in 1946, marked on the chart; the median year is 23.8 mm (0.9 in).

Wettest day (Rx1day) at Tarcoola by year
Year	Wettest day (Rx1day)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	24.1 mm (0.9 in)
1908	25.9 mm (1.0 in)
1909	33.0 mm (1.3 in)
1910	55.9 mm (2.2 in)
1911	11.4 mm (0.4 in)
1912	23.4 mm (0.9 in)
1913	27.9 mm (1.1 in)
1914	44.5 mm (1.8 in)
1915	15.2 mm (0.6 in)
1916	24.6 mm (1.0 in)
1917	40.1 mm (1.6 in)
1918	31.5 mm (1.2 in)
1919	30.2 mm (1.2 in)
1920	71.9 mm (2.8 in)
1921	141.0 mm (5.6 in)
1922	19.6 mm (0.8 in)
1923	49.0 mm (1.9 in)
1924	37.1 mm (1.5 in)
1925	19.1 mm (0.8 in)
1926	15.2 mm (0.6 in)
1927	37.1 mm (1.5 in)
1928	19.6 mm (0.8 in)
1929	18.3 mm (0.7 in)
1930	23.6 mm (0.9 in)
1931	20.3 mm (0.8 in)
1932	22.9 mm (0.9 in)
1933	17.3 mm (0.7 in)
1934	11.9 mm (0.5 in)
1935	27.2 mm (1.1 in)
1936	14.2 mm (0.6 in)
1937	44.5 mm (1.8 in)
1938	77.7 mm (3.1 in)
1939	20.6 mm (0.8 in)
1940	14.7 mm (0.6 in)
1941	28.7 mm (1.1 in)
1942	42.4 mm (1.7 in)
1943	23.9 mm (0.9 in)
1944	15.5 mm (0.6 in)
1945	55.4 mm (2.2 in)
1946	141.2 mm (5.6 in)
1947	30.7 mm (1.2 in)
1948	9.7 mm (0.38 in)
1949	18.8 mm (0.7 in)
1950	37.1 mm (1.5 in)
1951	22.9 mm (0.9 in)
1952	17.5 mm (0.7 in)
1953	22.6 mm (0.9 in)
1954	30.0 mm (1.2 in)
1955	27.9 mm (1.1 in)
1956	22.1 mm (0.9 in)
1958	38.1 mm (1.5 in)
1960	37.1 mm (1.5 in)
1961	53.3 mm (2.1 in)
1962	19.8 mm (0.8 in)
1963	15.2 mm (0.6 in)
1964	45.5 mm (1.8 in)
1965	12.7 mm (0.5 in)
1966	50.8 mm (2.0 in)
1967	13.7 mm (0.5 in)
1968	24.4 mm (1.0 in)
1969	36.3 mm (1.4 in)
1970	16.3 mm (0.6 in)
1971	56.6 mm (2.2 in)
1972	20.6 mm (0.8 in)
1973	46.5 mm (1.8 in)
1974	50.8 mm (2.0 in)
1975	66.4 mm (2.6 in)
1976	20.0 mm (0.8 in)
1977	12.8 mm (0.5 in)
1978	22.6 mm (0.9 in)
1979	22.0 mm (0.9 in)
1980	15.0 mm (0.6 in)
1981	16.4 mm (0.6 in)
1982	25.8 mm (1.0 in)
1983	10.8 mm (0.4 in)
1984	16.0 mm (0.6 in)
1985	28.7 mm (1.1 in)
1986	10.2 mm (0.4 in)
1987	26.3 mm (1.0 in)
1988	41.0 mm (1.6 in)
1989	93.0 mm (3.7 in)
1990	16.0 mm (0.6 in)
1991	23.6 mm (0.9 in)
1992	44.0 mm (1.7 in)
1993	12.8 mm (0.5 in)
1994	34.0 mm (1.3 in)
1995	15.0 mm (0.6 in)
1996	13.4 mm (0.5 in)
1997	53.8 mm (2.1 in)
1998	27.0 mm (1.1 in)
1999	21.8 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tarcoola, 1904 to 1999. The record is 186.0 mm (7.3 in) in 1921, marked on the chart; the median year is 34.1 mm (1.3 in).

Wettest five days (Rx5day) at Tarcoola by year
Year	Wettest five days (Rx5day)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	63.5 mm (2.5 in)
1908	31.0 mm (1.2 in)
1909	34.4 mm (1.4 in)
1910	86.4 mm (3.4 in)
1911	14.7 mm (0.6 in)
1912	30.3 mm (1.2 in)
1913	45.1 mm (1.8 in)
1914	44.5 mm (1.8 in)
1915	22.3 mm (0.9 in)
1916	46.7 mm (1.8 in)
1917	71.6 mm (2.8 in)
1918	38.4 mm (1.5 in)
1919	59.2 mm (2.3 in)
1920	71.9 mm (2.8 in)
1921	186.0 mm (7.3 in)
1922	36.4 mm (1.4 in)
1923	62.2 mm (2.4 in)
1924	48.0 mm (1.9 in)
1925	25.7 mm (1.0 in)
1926	22.0 mm (0.9 in)
1927	45.7 mm (1.8 in)
1928	21.8 mm (0.9 in)
1929	19.1 mm (0.8 in)
1930	25.1 mm (1.0 in)
1931	32.2 mm (1.3 in)
1932	25.4 mm (1.0 in)
1933	21.6 mm (0.9 in)
1934	29.2 mm (1.1 in)
1935	40.5 mm (1.6 in)
1936	34.3 mm (1.4 in)
1937	45.8 mm (1.8 in)
1938	109.7 mm (4.3 in)
1939	20.6 mm (0.8 in)
1940	14.8 mm (0.6 in)
1941	30.7 mm (1.2 in)
1942	57.1 mm (2.2 in)
1943	23.9 mm (0.9 in)
1944	25.9 mm (1.0 in)
1945	69.6 mm (2.7 in)
1946	164.1 mm (6.5 in)
1947	35.0 mm (1.4 in)
1948	15.5 mm (0.6 in)
1949	25.9 mm (1.0 in)
1950	47.0 mm (1.9 in)
1951	22.9 mm (0.9 in)
1952	32.0 mm (1.3 in)
1953	25.2 mm (1.0 in)
1954	41.7 mm (1.6 in)
1955	40.1 mm (1.6 in)
1956	22.1 mm (0.9 in)
1958	54.6 mm (2.1 in)
1960	44.5 mm (1.8 in)
1961	73.4 mm (2.9 in)
1962	35.0 mm (1.4 in)
1963	23.7 mm (0.9 in)
1964	63.3 mm (2.5 in)
1965	21.3 mm (0.8 in)
1966	104.3 mm (4.1 in)
1967	13.7 mm (0.5 in)
1968	37.6 mm (1.5 in)
1969	42.9 mm (1.7 in)
1970	20.1 mm (0.8 in)
1971	72.8 mm (2.9 in)
1972	26.2 mm (1.0 in)
1973	98.6 mm (3.9 in)
1974	101.6 mm (4.0 in)
1975	86.6 mm (3.4 in)
1976	42.0 mm (1.7 in)
1977	14.6 mm (0.6 in)
1978	26.0 mm (1.0 in)
1979	33.4 mm (1.3 in)
1980	18.8 mm (0.7 in)
1981	25.6 mm (1.0 in)
1982	30.6 mm (1.2 in)
1983	14.0 mm (0.6 in)
1984	18.6 mm (0.7 in)
1985	35.0 mm (1.4 in)
1986	21.4 mm (0.8 in)
1987	26.3 mm (1.0 in)
1988	57.8 mm (2.3 in)
1989	124.4 mm (4.9 in)
1990	35.0 mm (1.4 in)
1991	42.6 mm (1.7 in)
1992	59.4 mm (2.3 in)
1993	24.4 mm (1.0 in)
1994	70.2 mm (2.8 in)
1995	18.4 mm (0.7 in)
1996	26.0 mm (1.0 in)
1997	64.8 mm (2.6 in)
1998	33.8 mm (1.3 in)
1999	27.4 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tarcoola, 1904 to 1999. The record is 133 days in 1970, marked on the chart; the median year is 61 days.

Longest dry spell (CDD) at Tarcoola by year
Year	Longest dry spell (CDD)
1904	61 days
1905	61 days
1906	31 days
1907	87 days
1908	39 days
1909	45 days
1910	64 days
1911	50 days
1912	94 days
1913	63 days
1914	71 days
1915	55 days
1916	61 days
1917	39 days
1918	55 days
1919	53 days
1920	86 days
1921	64 days
1922	75 days
1923	108 days
1924	47 days
1925	43 days
1926	58 days
1927	48 days
1928	66 days
1929	124 days
1930	57 days
1931	71 days
1932	37 days
1933	54 days
1934	56 days
1935	124 days
1936	72 days
1937	53 days
1938	90 days
1939	64 days
1940	61 days
1941	43 days
1942	38 days
1943	53 days
1944	60 days
1945	55 days
1946	37 days
1947	88 days
1948	48 days
1949	78 days
1950	122 days
1951	85 days
1952	73 days
1953	80 days
1954	75 days
1955	38 days
1956	46 days
1958	13 days
1960	72 days
1961	68 days
1962	49 days
1963	62 days
1964	74 days
1965	126 days
1966	44 days
1967	83 days
1968	32 days
1969	57 days
1970	133 days
1971	59 days
1972	94 days
1973	29 days
1974	37 days
1975	45 days
1976	101 days
1977	80 days
1978	104 days
1979	51 days
1980	71 days
1981	50 days
1982	88 days
1983	39 days
1984	69 days
1985	73 days
1986	100 days
1987	57 days
1988	54 days
1989	68 days
1990	36 days
1991	84 days
1992	36 days
1993	60 days
1994	103 days
1995	76 days
1996	74 days
1997	83 days
1998	40 days
1999	58 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.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Tarcoola falls on 13 August and the median first autumn frost on 24 June, which leaves a median of 318 days between them.

Frost dates and growing season at Tarcoola
Measure	Median, all years	Earliest period	Recent period (1963 to 1993)	Recent against earliest	Fitted trend
Last spring frost	13 August	n/a	13 August	n/a	n/a
First autumn frost	24 June	n/a	24 June	n/a	n/a
Growing days	318 days	n/a	318 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

88 years, 1907 to 1997

A day with at least 25.0 mm (1.0 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 Tarcoola: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	25.0 mm (1.0 in)
5 years	41.1 mm (1.6 in)
10 years	55.5 mm (2.2 in)
25 years	79.4 mm (3.1 in)
50 years	102.5 mm (4.0 in)
100 years	131.1 mm (5.2 in)	Longer than the 88 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, 88 years of values from 1907 to 1997.

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: 141.2 mm (5.6 in) in 1946; 141.0 mm (5.6 in) in 1921; 93.0 mm (3.7 in) in 1989.

Download the Data

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