Nullarbor Weather Records (ASN00018106)

Record envelope, standing records and threshold days for Nullarbor (ASN00018106), Australia, with 138 years of record.

Key Facts for Nullarbor

Nullarbor (ASN00018106) is a weather station in Australia at -31.45 latitude and 130.90 longitude, 64 m (210 ft) above sea level.
The station reports from 1889 to 2026, 138 years of record.
1,464 records set at Nullarbor still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Nullarbor set a daily record high minimum temperature of 19.1 C (66.4 F) on 29 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Australia, -31.45 latitude, 130.90 longitude.
Elevation: 64 m (210 ft).
Period of record: 1889 to 2026, 138 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record

The band shows the record high and record low for each calendar day at Nullarbor. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Nullarbor, 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)	3.5 C (38.3 F)	44.9 C (112.8 F)	9.9 C (49.8 F)
Feb	47.6 C (117.7 F)	7.0 C (44.6 F)	42.2 C (108.0 F)	10.7 C (51.3 F)
Mar	45.3 C (113.5 F)	5.0 C (41.0 F)	37.4 C (99.3 F)	9.1 C (48.4 F)
Apr	42.2 C (108.0 F)	2.0 C (35.6 F)	35.0 C (95.0 F)	8.7 C (47.7 F)
May	36.5 C (97.7 F)	0.5 C (32.9 F)	26.6 C (79.9 F)	4.4 C (39.9 F)
Jun	32.0 C (89.6 F)	-2.9 C (26.8 F)	24.4 C (75.9 F)	2.6 C (36.7 F)
Jul	31.2 C (88.2 F)	-3.2 C (26.2 F)	23.2 C (73.8 F)	1.4 C (34.5 F)
Aug	36.0 C (96.8 F)	-4.0 C (24.8 F)	28.8 C (83.8 F)	0.3 C (32.5 F)
Sep	40.0 C (104.0 F)	-0.7 C (30.7 F)	33.3 C (91.9 F)	2.2 C (36.0 F)
Oct	45.0 C (113.0 F)	1.0 C (33.8 F)	37.5 C (99.5 F)	7.2 C (45.0 F)
Nov	46.6 C (115.9 F)	2.0 C (35.6 F)	n/a	n/a
Dec	49.9 C (121.8 F)	2.3 C (36.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nullarbor still stand. 2019 holds the most, with 55.

Standing records at Nullarbor by the year they were set
Year set	Standing records
1986	14
1987	50
1988	38
1989	44
1990	47
1991	24
1992	38
1993	33
1994	40
1995	27
1996	37
1997	49
1998	49
1999	45
2000	38
2001	39
2002	35
2003	24
2004	50
2005	43
2006	26
2007	42
2008	37
2009	36
2010	35
2011	31
2012	32
2013	33
2014	25
2015	30
2016	32
2017	35
2018	35
2019	55
2020	42
2021	30
2022	28
2023	30
2024	35
2025	36
2026	15

All-Time Record Progression

2 new records

2 all-time records were set at Nullarbor between 1 January 2006 and 19 December 2019. Each dot is a new record.

When Nullarbor set new all-time records
Date	Kind	Detail
2006-01-01	Record daily precipitation	Record daily precipitation 82.0 mm (3.2 in)
2019-12-19	Record high maximum temperature	Record high maximum temperature 49.9 C (121.8 F)

Wettest Day of Each Month

Jan: 82.0 mm (3.2 in)

The wettest day on record for each calendar month at Nullarbor. The most was 82.0 mm (3.2 in) on 1 January 2006.

Record daily precipitation for each month at Nullarbor
Month	Record daily precipitation (mm)	Date
Jan	82.0 mm (3.2 in)	1 January 2006
Feb	79.8 mm (3.1 in)	18 February 2011
Mar	65.0 mm (2.6 in)	16 March 1968
Apr	79.2 mm (3.1 in)	18 April 1974
May	40.9 mm (1.6 in)	22 May 1938
Jun	32.8 mm (1.3 in)	14 June 1934
Jul	42.0 mm (1.7 in)	1 July 1990
Aug	27.9 mm (1.1 in)	6 August 1973
Sep	25.8 mm (1.0 in)	3 September 2010
Oct	32.8 mm (1.3 in)	31 October 1939
Nov	59.2 mm (2.3 in)	17 November 1992
Dec	42.3 mm (1.7 in)	3 December 1988

Period of Record Coverage

1986 to 2026

41 years of record at Nullarbor, 1986 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1986, 1995, 1996, 1997, 2026.

Days with data per year at Nullarbor
Year	Days with data	Share of year	Complete
1986	61	17%	No
1987	356	98%	Yes
1988	363	99%	Yes
1989	359	98%	Yes
1990	365	100%	Yes
1991	359	98%	Yes
1992	362	99%	Yes
1993	360	99%	Yes
1994	351	96%	Yes
1995	252	69%	No
1996	327	89%	No
1997	318	87%	No
1998	351	96%	Yes
1999	362	99%	Yes
2000	365	100%	Yes
2001	364	100%	Yes
2002	361	99%	Yes
2003	364	100%	Yes
2004	366	100%	Yes
2005	364	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	364	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	365	100%	Yes
2013	365	100%	Yes
2014	364	100%	Yes
2015	363	99%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	363	99%	Yes
2019	362	99%	Yes
2020	366	100%	Yes
2021	363	99%	Yes
2022	353	97%	Yes
2023	365	100%	Yes
2024	364	99%	Yes
2025	362	99%	Yes
2026	280	77%	No

Latest Records

Latest records at Nullarbor
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 September 2026	Nullarbor, AU	daily high min (Provisional)	19.1 C (66.4 F)	0.1 C (0.2 F)	24 years	11 of 100 (Routine)
26 September 2026	Nullarbor, AU	daily high min (Provisional)	15.7 C (60.3 F)	0.7 C (1.3 F)	25 years	12 of 100 (Routine)
7 September 2026	Nullarbor, AU	daily low max (Provisional)	14.6 C (58.3 F)	0.4 C (0.7 F)	21 years	10 of 100 (Routine)
1 September 2026	Nullarbor, AU	daily high min (Provisional)	15.2 C (59.4 F)	1.9 C (3.4 F)	16 years	13 of 100 (Routine)
28 August 2026	Nullarbor, AU	daily high min (Provisional)	13.7 C (56.7 F)	0.5 C (0.9 F)	32 years	14 of 100 (Routine)
24 August 2026	Nullarbor, AU	daily high min (Provisional)	13.6 C (56.5 F)	1.2 C (2.2 F)	7 years	9 of 100 (Routine)
9 August 2026	Nullarbor, AU	daily low max	12.6 C (54.7 F)	1.7 C (3.1 F)	16 years	12 of 100 (Routine)
29 June 2026	Nullarbor, AU	daily rain	11.2 mm (0.4 in)	3.2 mm (0.13 in)	28 years	20 of 100 (Routine)
17 June 2026	Nullarbor, AU	daily low max	13.9 C (57.0 F)	1.1 C (2.0 F)	24 years	14 of 100 (Routine)
16 June 2026	Nullarbor, AU	daily rain	13.4 mm (0.5 in)	4.6 mm (0.18 in)	36 years	20 of 100 (Routine)
16 June 2026	Nullarbor, AU	daily high min	16.0 C (60.8 F)	4.0 C (7.2 F)	24 years	23 of 100 (Routine)
13 June 2026	Nullarbor, AU	daily rain	11.4 mm (0.4 in)	3.2 mm (0.13 in)	33 years	20 of 100 (Routine)
13 June 2026	Nullarbor, AU	daily high min	12.8 C (55.0 F)	1.4 C (2.5 F)	37 years	19 of 100 (Routine)
24 May 2026	Nullarbor, AU	daily rain	11.4 mm (0.4 in)	3.4 mm (0.13 in)	37 years	20 of 100 (Routine)
1 May 2026	Nullarbor, AU	daily high min	17.2 C (63.0 F)	1.1 C (2.0 F)	13 years	11 of 100 (Routine)
30 April 2026	Nullarbor, AU	daily high min	18.5 C (65.3 F)	2.3 C (4.1 F)	28 years	18 of 100 (Routine)
30 April 2026	Nullarbor, AU	daily high max	34.0 C (93.2 F)	1.0 C (1.8 F)	32 years	15 of 100 (Routine)
24 April 2026	Nullarbor, AU	daily high max	33.2 C (91.8 F)	0.5 C (0.9 F)	32 years	14 of 100 (Routine)
21 April 2026	Nullarbor, AU	daily high max (Tie)	35.0 C (95.0 F)	tie	21 years	2 of 100 (Routine)
18 April 2026	Nullarbor, AU	daily high min	17.4 C (63.3 F)	0.9 C (1.6 F)	8 years	8 of 100 (Routine)

Climate Trend

34 complete years, 1987 to 2025

One stripe for each of 34 complete years at Nullarbor, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 17.4 C (63.4 F); red stripes are warmer. The coolest year was 1992, at 16.4 C (61.6 F), and the warmest was 2013, at 18.3 C (65.0 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Nullarbor as warming stripes, 1987 to 2025
Year	Annual mean temperature	Difference from the station mean
1987	16.7 C	-0.72 C
1989	16.8 C	-0.60 C
1990	17.1 C	-0.37 C
1991	17.6 C	+0.14 C
1992	16.4 C	-0.99 C
1993	17.3 C	-0.09 C
1994	17.4 C	-0.04 C
1998	16.9 C	-0.50 C
1999	17.2 C	-0.22 C
2000	17.5 C	+0.05 C
2001	17.0 C	-0.45 C
2002	17.2 C	-0.23 C
2003	17.1 C	-0.35 C
2004	17.3 C	-0.16 C
2005	17.8 C	+0.35 C
2006	17.0 C	-0.44 C
2007	17.8 C	+0.35 C
2008	17.4 C	-0.03 C
2009	17.8 C	+0.33 C
2010	16.9 C	-0.55 C
2011	17.5 C	+0.09 C
2012	17.3 C	-0.16 C
2013	18.3 C	+0.92 C
2014	18.1 C	+0.70 C
2015	17.8 C	+0.34 C
2016	17.2 C	-0.21 C
2017	17.5 C	+0.08 C
2018	17.9 C	+0.50 C
2019	18.1 C	+0.72 C
2020	17.8 C	+0.39 C
2021	17.2 C	-0.22 C
2023	17.6 C	+0.17 C
2024	17.8 C	+0.37 C
2025	18.2 C	+0.77 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1987 to 2025. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Nullarbor
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1987 to 2025	34	Rise
Mean daily maximum	0.3 C (0.1 to 0.5) per decade	0.5 F (0.2 to 0.9) per decade	1987 to 2025	34	Rise
Mean daily minimum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.2 to 0.7) per decade	1987 to 2025	34	Rise

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

1889 to 2026

Yearly extremes at Nullarbor: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	49.9 C (121.8 F)	2019	45.2 C (113.4 F)	41
Coldest night (TNn)	-4.0 C (24.8 F)	1996	0.0 C (32.0 F)	41
Wettest day (Rx1day)	82.0 mm (3.2 in)	2006	21.6 mm (0.9 in)	101
Wettest five days (Rx5day)	141.2 mm (5.6 in)	1974	33.2 mm (1.3 in)	101
Longest dry spell (CDD)	118 days	1997	43 days	101

Hottest day (TXx)

The hottest day of the year at Nullarbor, 1889 to 2026. The record is 49.9 C (121.8 F) in 2019, marked on the chart; the median year is 45.2 C (113.4 F).

Hottest day (TXx) at Nullarbor by year
Year	Hottest day (TXx)
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1897	n/a
1898	n/a
1900	n/a
1901	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1909	n/a
1910	n/a
1912	n/a
1914	n/a
1915	n/a
1918	n/a
1920	n/a
1921	n/a
1923	n/a
1925	n/a
1926	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
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1986	43.2 C (109.8 F)
1987	45.0 C (113.0 F)
1988	43.4 C (110.1 F)
1989	44.5 C (112.1 F)
1990	48.5 C (119.3 F)
1991	47.2 C (117.0 F)
1992	44.0 C (111.2 F)
1993	45.8 C (114.4 F)
1994	45.7 C (114.3 F)
1995	43.0 C (109.4 F)
1996	45.7 C (114.3 F)
1997	45.0 C (113.0 F)
1998	46.0 C (114.8 F)
1999	42.0 C (107.6 F)
2000	44.0 C (111.2 F)
2001	46.0 C (114.8 F)
2002	42.0 C (107.6 F)
2003	46.0 C (114.8 F)
2004	45.0 C (113.0 F)
2005	44.0 C (111.2 F)
2006	46.0 C (114.8 F)
2007	47.6 C (117.7 F)
2008	42.7 C (108.9 F)
2009	46.9 C (116.4 F)
2010	43.9 C (111.0 F)
2011	47.0 C (116.6 F)
2012	42.8 C (109.0 F)
2013	46.8 C (116.2 F)
2014	44.9 C (112.8 F)
2015	46.7 C (116.1 F)
2016	45.5 C (113.9 F)
2017	43.4 C (110.1 F)
2018	45.2 C (113.4 F)
2019	49.9 C (121.8 F)
2020	46.7 C (116.1 F)
2021	43.5 C (110.3 F)
2022	44.1 C (111.4 F)
2023	45.2 C (113.4 F)
2024	45.8 C (114.4 F)
2025	47.3 C (117.1 F)
2026	44.9 C (112.8 F)

Coldest night (TNn)

The coldest night of the year at Nullarbor, 1889 to 2026. The record is -4.0 C (24.8 F) in 1996, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Nullarbor by year
Year	Coldest night (TNn)
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1897	n/a
1898	n/a
1900	n/a
1901	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1909	n/a
1910	n/a
1912	n/a
1914	n/a
1915	n/a
1918	n/a
1920	n/a
1921	n/a
1923	n/a
1925	n/a
1926	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
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1986	4.0 C (39.2 F)
1987	-0.6 C (30.9 F)
1988	-0.6 C (30.9 F)
1989	-0.2 C (31.6 F)
1990	-3.4 C (25.9 F)
1991	1.0 C (33.8 F)
1992	0.5 C (32.9 F)
1993	1.1 C (34.0 F)
1994	-0.4 C (31.3 F)
1995	0.8 C (33.4 F)
1996	-4.0 C (24.8 F)
1997	-2.0 C (28.4 F)
1998	0.0 C (32.0 F)
1999	-1.0 C (30.2 F)
2000	0.0 C (32.0 F)
2001	1.0 C (33.8 F)
2002	-1.0 C (30.2 F)
2003	1.0 C (33.8 F)
2004	-1.0 C (30.2 F)
2005	-1.0 C (30.2 F)
2006	-0.8 C (30.6 F)
2007	-2.9 C (26.8 F)
2008	0.2 C (32.4 F)
2009	1.5 C (34.7 F)
2010	0.0 C (32.0 F)
2011	1.5 C (34.7 F)
2012	-2.2 C (28.0 F)
2013	0.6 C (33.1 F)
2014	-0.1 C (31.8 F)
2015	0.0 C (32.0 F)
2016	0.3 C (32.5 F)
2017	-2.7 C (27.1 F)
2018	0.0 C (32.0 F)
2019	-0.7 C (30.7 F)
2020	1.2 C (34.2 F)
2021	0.0 C (32.0 F)
2022	-0.8 C (30.6 F)
2023	0.1 C (32.2 F)
2024	-3.2 C (26.2 F)
2025	1.0 C (33.8 F)
2026	0.3 C (32.5 F)

Wettest day (Rx1day)

The wettest day of the year at Nullarbor, 1889 to 2026. The record is 82.0 mm (3.2 in) in 2006, marked on the chart; the median year is 21.6 mm (0.9 in).

Wettest day (Rx1day) at Nullarbor by year
Year	Wettest day (Rx1day)
1889	0.0 mm (0.00 in)
1890	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1892	0.0 mm (0.00 in)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1900	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	0.0 mm (0.00 in)
1909	0.0 mm (0.00 in)
1910	0.0 mm (0.00 in)
1912	0.0 mm (0.00 in)
1914	0.0 mm (0.00 in)
1915	0.0 mm (0.00 in)
1918	0.0 mm (0.00 in)
1920	0.0 mm (0.00 in)
1921	0.0 mm (0.00 in)
1923	0.0 mm (0.00 in)
1925	0.0 mm (0.00 in)
1926	0.0 mm (0.00 in)
1928	8.1 mm (0.32 in)
1929	13.2 mm (0.5 in)
1930	36.6 mm (1.4 in)
1931	62.0 mm (2.4 in)
1932	25.1 mm (1.0 in)
1933	23.4 mm (0.9 in)
1934	33.0 mm (1.3 in)
1935	40.6 mm (1.6 in)
1936	17.0 mm (0.7 in)
1937	12.4 mm (0.5 in)
1938	40.9 mm (1.6 in)
1939	32.8 mm (1.3 in)
1940	42.4 mm (1.7 in)
1941	20.1 mm (0.8 in)
1942	43.2 mm (1.7 in)
1943	11.2 mm (0.4 in)
1961	30.0 mm (1.2 in)
1962	22.6 mm (0.9 in)
1963	8.4 mm (0.33 in)
1964	21.6 mm (0.9 in)
1965	18.5 mm (0.7 in)
1966	38.1 mm (1.5 in)
1967	20.8 mm (0.8 in)
1968	65.0 mm (2.6 in)
1969	63.2 mm (2.5 in)
1970	15.2 mm (0.6 in)
1971	27.9 mm (1.1 in)
1972	10.4 mm (0.4 in)
1973	57.2 mm (2.3 in)
1974	79.2 mm (3.1 in)
1975	33.0 mm (1.3 in)
1976	29.0 mm (1.1 in)
1977	14.5 mm (0.6 in)
1986	6.8 mm (0.27 in)
1987	30.2 mm (1.2 in)
1988	42.3 mm (1.7 in)
1989	26.4 mm (1.0 in)
1990	42.0 mm (1.7 in)
1991	23.0 mm (0.9 in)
1992	59.2 mm (2.3 in)
1993	34.6 mm (1.4 in)
1994	16.2 mm (0.6 in)
1995	44.0 mm (1.7 in)
1996	21.6 mm (0.9 in)
1997	30.0 mm (1.2 in)
1998	49.0 mm (1.9 in)
1999	23.0 mm (0.9 in)
2000	35.0 mm (1.4 in)
2001	30.0 mm (1.2 in)
2002	40.0 mm (1.6 in)
2003	23.0 mm (0.9 in)
2004	21.0 mm (0.8 in)
2005	17.0 mm (0.7 in)
2006	82.0 mm (3.2 in)
2007	27.4 mm (1.1 in)
2008	15.4 mm (0.6 in)
2009	23.8 mm (0.9 in)
2010	29.6 mm (1.2 in)
2011	79.8 mm (3.1 in)
2012	16.0 mm (0.6 in)
2013	40.2 mm (1.6 in)
2014	45.8 mm (1.8 in)
2015	19.8 mm (0.8 in)
2016	62.4 mm (2.5 in)
2017	50.2 mm (2.0 in)
2018	23.4 mm (0.9 in)
2019	17.6 mm (0.7 in)
2020	18.2 mm (0.7 in)
2021	35.2 mm (1.4 in)
2022	43.4 mm (1.7 in)
2023	22.0 mm (0.9 in)
2024	38.4 mm (1.5 in)
2025	14.4 mm (0.6 in)
2026	38.2 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nullarbor, 1889 to 2026. The record is 141.2 mm (5.6 in) in 1974, marked on the chart; the median year is 33.2 mm (1.3 in).

Wettest five days (Rx5day) at Nullarbor by year
Year	Wettest five days (Rx5day)
1889	0.0 mm (0.00 in)
1890	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1892	0.0 mm (0.00 in)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1895	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1898	0.0 mm (0.00 in)
1900	0.0 mm (0.00 in)
1901	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1904	0.0 mm (0.00 in)
1905	0.0 mm (0.00 in)
1906	0.0 mm (0.00 in)
1907	0.0 mm (0.00 in)
1909	0.0 mm (0.00 in)
1910	0.0 mm (0.00 in)
1912	0.0 mm (0.00 in)
1914	0.0 mm (0.00 in)
1915	0.0 mm (0.00 in)
1918	0.0 mm (0.00 in)
1920	0.0 mm (0.00 in)
1921	0.0 mm (0.00 in)
1923	0.0 mm (0.00 in)
1925	0.0 mm (0.00 in)
1926	0.0 mm (0.00 in)
1928	13.1 mm (0.5 in)
1929	15.0 mm (0.6 in)
1930	80.3 mm (3.2 in)
1931	65.8 mm (2.6 in)
1932	42.4 mm (1.7 in)
1933	26.5 mm (1.0 in)
1934	46.3 mm (1.8 in)
1935	60.2 mm (2.4 in)
1936	26.5 mm (1.0 in)
1937	29.6 mm (1.2 in)
1938	45.0 mm (1.8 in)
1939	48.8 mm (1.9 in)
1940	43.4 mm (1.7 in)
1941	28.2 mm (1.1 in)
1942	45.7 mm (1.8 in)
1943	15.8 mm (0.6 in)
1961	33.6 mm (1.3 in)
1962	43.7 mm (1.7 in)
1963	17.5 mm (0.7 in)
1964	28.2 mm (1.1 in)
1965	18.5 mm (0.7 in)
1966	76.7 mm (3.0 in)
1967	29.4 mm (1.2 in)
1968	120.4 mm (4.7 in)
1969	102.4 mm (4.0 in)
1970	19.7 mm (0.8 in)
1971	44.2 mm (1.7 in)
1972	16.5 mm (0.6 in)
1973	68.3 mm (2.7 in)
1974	141.2 mm (5.6 in)
1975	54.8 mm (2.2 in)
1976	45.6 mm (1.8 in)
1977	27.6 mm (1.1 in)
1986	7.1 mm (0.28 in)
1987	33.2 mm (1.3 in)
1988	83.6 mm (3.3 in)
1989	53.4 mm (2.1 in)
1990	59.2 mm (2.3 in)
1991	36.8 mm (1.4 in)
1992	65.8 mm (2.6 in)
1993	55.0 mm (2.2 in)
1994	29.6 mm (1.2 in)
1995	56.3 mm (2.2 in)
1996	33.6 mm (1.3 in)
1997	31.0 mm (1.2 in)
1998	60.6 mm (2.4 in)
1999	24.6 mm (1.0 in)
2000	35.4 mm (1.4 in)
2001	56.4 mm (2.2 in)
2002	58.2 mm (2.3 in)
2003	36.0 mm (1.4 in)
2004	33.2 mm (1.3 in)
2005	29.2 mm (1.1 in)
2006	110.0 mm (4.3 in)
2007	52.4 mm (2.1 in)
2008	29.6 mm (1.2 in)
2009	30.4 mm (1.2 in)
2010	49.0 mm (1.9 in)
2011	81.2 mm (3.2 in)
2012	16.4 mm (0.6 in)
2013	42.6 mm (1.7 in)
2014	69.0 mm (2.7 in)
2015	33.4 mm (1.3 in)
2016	63.8 mm (2.5 in)
2017	67.4 mm (2.7 in)
2018	44.6 mm (1.8 in)
2019	20.4 mm (0.8 in)
2020	39.0 mm (1.5 in)
2021	46.4 mm (1.8 in)
2022	43.6 mm (1.7 in)
2023	35.8 mm (1.4 in)
2024	54.0 mm (2.1 in)
2025	35.8 mm (1.4 in)
2026	71.4 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nullarbor, 1889 to 2026. The record is 118 days in 1997, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Nullarbor by year
Year	Longest dry spell (CDD)
1889	31 days
1890	31 days
1891	59 days
1892	29 days
1893	28 days
1894	30 days
1895	59 days
1897	30 days
1898	31 days
1900	61 days
1901	31 days
1903	61 days
1904	31 days
1905	31 days
1906	89 days
1907	28 days
1909	31 days
1910	31 days
1912	31 days
1914	28 days
1915	30 days
1918	31 days
1920	60 days
1921	31 days
1923	30 days
1925	31 days
1926	59 days
1928	65 days
1929	61 days
1930	49 days
1931	70 days
1932	43 days
1933	40 days
1934	52 days
1935	67 days
1936	52 days
1937	49 days
1938	85 days
1939	62 days
1940	52 days
1941	29 days
1942	31 days
1943	59 days
1961	39 days
1962	55 days
1963	116 days
1964	65 days
1965	70 days
1966	38 days
1967	37 days
1968	48 days
1969	31 days
1970	63 days
1971	45 days
1972	86 days
1973	50 days
1974	41 days
1975	41 days
1976	34 days
1977	46 days
1986	23 days
1987	49 days
1988	51 days
1989	43 days
1990	46 days
1991	54 days
1992	31 days
1993	33 days
1994	36 days
1995	21 days
1996	56 days
1997	118 days
1998	36 days
1999	33 days
2000	29 days
2001	32 days
2002	47 days
2003	27 days
2004	55 days
2005	40 days
2006	43 days
2007	65 days
2008	50 days
2009	82 days
2010	26 days
2011	30 days
2012	75 days
2013	29 days
2014	44 days
2015	54 days
2016	22 days
2017	70 days
2018	37 days
2019	51 days
2020	37 days
2021	43 days
2022	23 days
2023	55 days
2024	39 days
2025	43 days
2026	42 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

70 years, 1928 to 2025

A day with at least 29.3 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 93.8 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Nullarbor: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.3 mm (1.2 in)
5 years	44.6 mm (1.8 in)
10 years	55.5 mm (2.2 in)
25 years	70.1 mm (2.8 in)
50 years	81.7 mm (3.2 in)
100 years	93.8 mm (3.7 in)	Longer than the 70 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, 70 years of values from 1928 to 2025.

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: 82.0 mm (3.2 in) in 2006; 79.8 mm (3.1 in) in 2011; 79.2 mm (3.1 in) in 1974.

Download the Data

Data for Nullarbor standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nullarbor 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).