Hillston Airport Weather Records (ASN00075032)

Record envelope, standing records and threshold days for Hillston Airport (ASN00075032), Australia, with 145 years of record.

Key Facts for Hillston Airport

Hillston Airport (ASN00075032) is a weather station in Australia at -33.49 latitude and 145.52 longitude, 122 m (400 ft) above sea level.
The station reports from 1881 to 2025, 145 years of record.
1,464 records set at Hillston Airport still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Hillston Airport set a daily record low minimum temperature of 2.0 C (35.6 F) on 29 September 2025.

About the Station

Location: Australia, -33.49 latitude, 145.52 longitude.
Elevation: 122 m (400 ft).
Period of record: 1881 to 2025, 145 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 Hillston Airport. 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 Hillston Airport, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	47.0 C (116.6 F)	6.0 C (42.8 F)	n/a	n/a
Feb	47.2 C (117.0 F)	5.4 C (41.7 F)	n/a	n/a
Mar	42.0 C (107.6 F)	4.5 C (40.1 F)	n/a	n/a
Apr	38.2 C (100.8 F)	0.5 C (32.9 F)	n/a	n/a
May	30.0 C (86.0 F)	-3.2 C (26.2 F)	n/a	n/a
Jun	26.0 C (78.8 F)	-4.0 C (24.8 F)	n/a	n/a
Jul	26.2 C (79.2 F)	-6.0 C (21.2 F)	n/a	n/a
Aug	30.7 C (87.3 F)	-4.6 C (23.7 F)	n/a	n/a
Sep	37.6 C (99.7 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	39.8 C (103.6 F)	1.0 C (33.8 F)	n/a	n/a
Nov	43.8 C (110.8 F)	2.0 C (35.6 F)	n/a	n/a
Dec	45.5 C (113.9 F)	4.4 C (39.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hillston Airport still stand. 1957 holds the most, with 47.

Standing records at Hillston Airport by the year they were set
Year set	Standing records
1957	47
1958	38
1959	21
1960	25
1961	6
1962	14
1963	15
1964	18
1965	38
1966	19
1967	20
1968	32
1969	29
1970	21
1971	9
1972	14
1973	18
1974	19
1975	21
1976	18
1977	17
1978	29
1979	12
1980	20
1981	19
1982	22
1983	35
1984	22
1985	20
1986	29
1987	16
1988	16
1989	18
1990	13
1991	20
1992	13
1993	20
1994	19
1995	30
1996	26
1997	16
1998	25
1999	19
2000	12
2001	16
2002	18
2003	14
2004	27
2005	27
2006	26
2007	14
2008	22
2009	32
2010	13
2011	22
2012	22
2014	23
2015	18
2016	33
2017	28
2018	38
2019	42
2020	24
2021	10
2022	14
2023	29
2024	13
2025	9

All-Time Record Progression

8 new records

8 all-time records were set at Hillston Airport between 19 January 1928 and 15 July 2022. Each dot is a new record.

When Hillston Airport set new all-time records
Date	Kind	Detail
1928-01-19	Record daily precipitation	Record daily precipitation 105.2 mm (4.1 in)
1950-02-06	Record daily precipitation	Record daily precipitation 119.6 mm (4.7 in)
1994-12-21	Record high minimum temperature	Record high minimum temperature 32.5 C (90.5 F)
2012-03-04	Record daily precipitation	Record daily precipitation 123.0 mm (4.8 in)
2014-08-03	Record low minimum temperature	Record low minimum temperature -4.6 C (23.7 F)
2017-02-10	Record high maximum temperature	Record high maximum temperature 46.1 C (115.0 F)
2017-02-11	Record high maximum temperature	Record high maximum temperature 47.2 C (117.0 F)
2022-07-15	Record low minimum temperature	Record low minimum temperature -6.0 C (21.2 F)

Wettest Day of Each Month

Mar: 123.0 mm (4.8 in)

The wettest day on record for each calendar month at Hillston Airport. The most was 123.0 mm (4.8 in) on 4 March 2012.

Record daily precipitation for each month at Hillston Airport
Month	Record daily precipitation (mm)	Date
Jan	105.2 mm (4.1 in)	19 January 1928
Feb	119.6 mm (4.7 in)	6 February 1950
Mar	123.0 mm (4.8 in)	4 March 2012
Apr	96.0 mm (3.8 in)	14 April 1939
May	66.0 mm (2.6 in)	4 May 2024
Jun	52.6 mm (2.1 in)	2 June 1930
Jul	45.0 mm (1.8 in)	25 July 1993
Aug	46.0 mm (1.8 in)	12 August 1929
Sep	58.8 mm (2.3 in)	23 September 1998
Oct	60.2 mm (2.4 in)	14 October 1929
Nov	58.4 mm (2.3 in)	6 November 1924
Dec	61.0 mm (2.4 in)	19 December 2011

Period of Record Coverage

1957 to 2025

68 years of record at Hillston Airport, 1957 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1970, 2014, 2021, 2022, 2023, 2024, 2025.

Days with data per year at Hillston Airport
Year	Days with data	Share of year	Complete
1957	358	98%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	338	92%	Yes
1961	364	100%	Yes
1962	364	100%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	359	98%	Yes
1968	365	100%	Yes
1969	363	99%	Yes
1970	211	58%	No
1971	365	100%	Yes
1972	358	98%	Yes
1973	365	100%	Yes
1974	361	99%	Yes
1975	365	100%	Yes
1976	362	99%	Yes
1977	360	99%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	355	97%	Yes
1982	364	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	360	99%	Yes
1988	364	99%	Yes
1989	365	100%	Yes
1990	359	98%	Yes
1991	365	100%	Yes
1992	364	99%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	362	99%	Yes
1998	365	100%	Yes
1999	364	100%	Yes
2000	364	99%	Yes
2001	360	99%	Yes
2002	365	100%	Yes
2003	358	98%	Yes
2004	361	99%	Yes
2005	360	99%	Yes
2006	365	100%	Yes
2007	363	99%	Yes
2008	366	100%	Yes
2009	359	98%	Yes
2010	354	97%	Yes
2011	361	99%	Yes
2012	357	98%	Yes
2014	309	85%	No
2015	346	95%	Yes
2016	362	99%	Yes
2017	348	95%	Yes
2018	359	98%	Yes
2019	359	98%	Yes
2020	348	95%	Yes
2021	315	86%	No
2022	304	83%	No
2023	320	88%	No
2024	282	77%	No
2025	165	45%	No

Latest Records

Latest records at Hillston Airport
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 September 2025	Hillston Airport, AU	daily low min	2.0 C (35.6 F)	0.2 C (0.4 F)	68 years	26 of 100 (Routine)
31 August 2025	Hillston Airport, AU	daily low min	-2.0 C (28.4 F)	0.3 C (0.5 F)	67 years	26 of 100 (Routine)
24 June 2025	Hillston Airport, AU	daily high min	11.8 C (53.2 F)	0.3 C (0.5 F)	4 years	7 of 100 (Routine)
23 June 2025	Hillston Airport, AU	daily high max	24.2 C (75.6 F)	3.6 C (6.5 F)	67 years	38 of 100 (Notable)
16 March 2025	Hillston Airport, AU	daily high min	23.8 C (74.8 F)	0.3 C (0.5 F)	18 years	11 of 100 (Routine)
15 March 2025	Hillston Airport, AU	daily high max	41.2 C (106.2 F)	1.2 C (2.2 F)	16 years	13 of 100 (Routine)
27 February 2025	Hillston Airport, AU	daily high max	40.5 C (104.9 F)	0.5 C (0.9 F)	67 years	27 of 100 (Routine)
26 February 2025	Hillston Airport, AU	daily high max	40.2 C (104.4 F)	0.2 C (0.4 F)	34 years	16 of 100 (Routine)
27 January 2025	Hillston Airport, AU	daily high max	43.5 C (110.3 F)	1.3 C (2.3 F)	40 years	20 of 100 (Routine)
17 December 2024	Hillston Airport, AU	daily high min	25.0 C (77.0 F)	0.6 C (1.1 F)	63 years	25 of 100 (Routine)
16 December 2024	Hillston Airport, AU	daily high max	42.5 C (108.5 F)	1.5 C (2.7 F)	22 years	14 of 100 (Routine)
6 December 2024	Hillston Airport, AU	daily high max	40.0 C (104.0 F)	0.5 C (0.9 F)	34 years	16 of 100 (Routine)
30 November 2024	Hillston Airport, AU	daily rain	31.2 mm (1.2 in)	6.3 mm (0.25 in)	66 years	35 of 100 (Notable)
17 November 2024	Hillston Airport, AU	daily high min	25.5 C (77.9 F)	0.5 C (0.9 F)	44 years	20 of 100 (Routine)
6 November 2024	Hillston Airport, AU	daily high max	40.2 C (104.4 F)	1.9 C (3.4 F)	63 years	27 of 100 (Routine)
26 September 2024	Hillston Airport, AU	daily rain	15.0 mm (0.6 in)	2.8 mm (0.11 in)	108 years	20 of 100 (Routine)
14 August 2024	Hillston Airport, AU	daily high min (Tie)	12.0 C (53.6 F)	tie	59 years	5 of 100 (Routine)
1 August 2024	Hillston Airport, AU	daily low min (Tie)	-2.0 C (28.4 F)	tie	12 years	2 of 100 (Routine)
31 July 2024	Hillston Airport, AU	daily low min	-3.5 C (25.7 F)	1.3 C (2.3 F)	27 years	17 of 100 (Routine)
4 June 2024	Hillston Airport, AU	daily low max	11.0 C (51.8 F)	0.7 C (1.3 F)	60 years	26 of 100 (Routine)

Climate Trend

60 complete years, 1957 to 2023

One stripe for each of 60 complete years at Hillston Airport, 1957 to 2023. Blue stripes are years cooler than the station's own mean of 17.8 C (64.0 F); red stripes are warmer. The coolest year was 1984, at 16.8 C (62.2 F), and the warmest was 2009, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Hillston Airport as warming stripes, 1957 to 2023
Year	Annual mean temperature	Difference from the station mean
1957	17.0 C	-0.74 C
1958	17.3 C	-0.50 C
1959	18.0 C	+0.28 C
1961	18.1 C	+0.33 C
1962	17.4 C	-0.31 C
1963	17.6 C	-0.11 C
1964	16.9 C	-0.83 C
1965	17.8 C	+0.08 C
1966	17.2 C	-0.53 C
1967	18.1 C	+0.38 C
1968	17.6 C	-0.18 C
1969	17.1 C	-0.63 C
1971	17.5 C	-0.25 C
1972	17.8 C	+0.01 C
1973	18.0 C	+0.28 C
1974	17.1 C	-0.70 C
1975	17.8 C	+0.02 C
1976	17.0 C	-0.76 C
1977	17.8 C	+0.04 C
1978	17.3 C	-0.47 C
1979	18.3 C	+0.52 C
1980	18.1 C	+0.34 C
1981	18.3 C	+0.51 C
1982	18.3 C	+0.59 C
1983	17.8 C	+0.06 C
1984	16.8 C	-1.00 C
1985	17.4 C	-0.40 C
1986	17.1 C	-0.61 C
1989	17.1 C	-0.62 C
1991	18.3 C	+0.52 C
1992	17.2 C	-0.55 C
1993	17.9 C	+0.11 C
1994	18.0 C	+0.28 C
1995	17.3 C	-0.46 C
1996	17.1 C	-0.66 C
1997	18.2 C	+0.41 C
1998	17.5 C	-0.30 C
1999	17.6 C	-0.11 C
2000	17.5 C	-0.22 C
2001	17.7 C	-0.04 C
2002	18.3 C	+0.58 C
2003	18.1 C	+0.32 C
2004	17.9 C	+0.18 C
2005	18.2 C	+0.44 C
2006	17.9 C	+0.18 C
2007	18.6 C	+0.81 C
2008	17.8 C	+0.08 C
2009	19.1 C	+1.30 C
2010	17.5 C	-0.26 C
2011	17.9 C	+0.19 C
2012	17.2 C	-0.57 C
2015	18.2 C	+0.43 C
2016	18.0 C	+0.29 C
2017	18.7 C	+0.98 C
2018	19.0 C	+1.26 C
2019	19.0 C	+1.28 C
2020	17.9 C	+0.14 C
2021	17.3 C	-0.46 C
2022	16.8 C	-0.98 C
2023	17.8 C	+0.05 C

The annual mean temperature here has risen by 0.09 C (0.02 to 0.16) per decade over 1957 to 2023. In Fahrenheit: 0.17 F (0.04 to 0.29) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Hillston Airport
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.09 C (0.02 to 0.16) per decade	0.17 F (0.04 to 0.29) per decade	1957 to 2023	60	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1957 to 2023	60	Rise
Mean daily minimum	-0.02 C (-0.09 to 0.05) per decade	-0.04 F (-0.17 to 0.09) per decade	1957 to 2023	60	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

1881 to 2025

Yearly extremes at Hillston Airport: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.2 C (117.0 F)	2017	42.5 C (108.5 F)	68
Coldest night (TNn)	-6.0 C (21.2 F)	2022	-3.0 C (26.6 F)	68
Wettest day (Rx1day)	123.0 mm (4.8 in)	2012	39.8 mm (1.6 in)	142
Wettest five days (Rx5day)	254.4 mm (10.0 in)	2012	56.7 mm (2.2 in)	142
Longest dry spell (CDD)	120 days	1923	40 days	142

Hottest day (TXx)

The hottest day of the year at Hillston Airport, 1881 to 2025. The record is 47.2 C (117.0 F) in 2017, marked on the chart; the median year is 42.5 C (108.5 F).

Hottest day (TXx) at Hillston Airport by year
Year	Hottest day (TXx)
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
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
1957	42.8 C (109.0 F)
1958	40.6 C (105.1 F)
1959	42.2 C (108.0 F)
1960	43.3 C (109.9 F)
1961	41.1 C (106.0 F)
1962	38.9 C (102.0 F)
1963	42.0 C (107.6 F)
1964	42.1 C (107.8 F)
1965	42.3 C (108.1 F)
1966	41.2 C (106.2 F)
1967	40.7 C (105.3 F)
1968	44.4 C (111.9 F)
1969	41.7 C (107.1 F)
1970	42.3 C (108.1 F)
1971	41.7 C (107.1 F)
1972	44.0 C (111.2 F)
1973	46.0 C (114.8 F)
1974	38.2 C (100.8 F)
1975	40.6 C (105.1 F)
1976	40.7 C (105.3 F)
1977	41.6 C (106.9 F)
1978	41.0 C (105.8 F)
1979	43.3 C (109.9 F)
1980	42.5 C (108.5 F)
1981	43.0 C (109.4 F)
1982	45.0 C (113.0 F)
1983	43.0 C (109.4 F)
1984	40.6 C (105.1 F)
1985	43.0 C (109.4 F)
1986	41.0 C (105.8 F)
1987	42.2 C (108.0 F)
1988	42.6 C (108.7 F)
1989	41.0 C (105.8 F)
1990	45.5 C (113.9 F)
1991	42.0 C (107.6 F)
1992	44.0 C (111.2 F)
1993	43.5 C (110.3 F)
1994	44.5 C (112.1 F)
1995	39.0 C (102.2 F)
1996	42.2 C (108.0 F)
1997	42.5 C (108.5 F)
1998	42.0 C (107.6 F)
1999	42.2 C (108.0 F)
2000	41.0 C (105.8 F)
2001	45.0 C (113.0 F)
2002	43.0 C (109.4 F)
2003	43.2 C (109.8 F)
2004	45.2 C (113.4 F)
2005	45.0 C (113.0 F)
2006	46.0 C (114.8 F)
2007	43.0 C (109.4 F)
2008	41.0 C (105.8 F)
2009	45.0 C (113.0 F)
2010	43.0 C (109.4 F)
2011	42.0 C (107.6 F)
2012	42.0 C (107.6 F)
2014	43.5 C (110.3 F)
2015	42.0 C (107.6 F)
2016	44.3 C (111.7 F)
2017	47.2 C (117.0 F)
2018	45.2 C (113.4 F)
2019	47.0 C (116.6 F)
2020	46.0 C (114.8 F)
2021	42.0 C (107.6 F)
2022	39.5 C (103.1 F)
2023	43.0 C (109.4 F)
2024	43.0 C (109.4 F)
2025	43.5 C (110.3 F)

Coldest night (TNn)

The coldest night of the year at Hillston Airport, 1881 to 2025. The record is -6.0 C (21.2 F) in 2022, marked on the chart; the median year is -3.0 C (26.6 F).

Coldest night (TNn) at Hillston Airport by year
Year	Coldest night (TNn)
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
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
1957	-3.3 C (26.1 F)
1958	-4.4 C (24.1 F)
1959	-3.3 C (26.1 F)
1960	-2.2 C (28.0 F)
1961	-2.8 C (27.0 F)
1962	-3.9 C (25.0 F)
1963	-3.3 C (26.1 F)
1964	-1.7 C (28.9 F)
1965	-3.7 C (25.3 F)
1966	-3.3 C (26.1 F)
1967	-2.3 C (27.9 F)
1968	-4.2 C (24.4 F)
1969	-1.7 C (28.9 F)
1970	-3.2 C (26.2 F)
1971	-3.1 C (26.4 F)
1972	-1.7 C (28.9 F)
1973	-0.8 C (30.6 F)
1974	-2.4 C (27.7 F)
1975	-1.3 C (29.7 F)
1976	-2.6 C (27.3 F)
1977	-3.0 C (26.6 F)
1978	-0.5 C (31.1 F)
1979	-2.0 C (28.4 F)
1980	-1.0 C (30.2 F)
1981	-1.5 C (29.3 F)
1982	-3.5 C (25.7 F)
1983	-2.0 C (28.4 F)
1984	-1.5 C (29.3 F)
1985	-2.0 C (28.4 F)
1986	-3.0 C (26.6 F)
1987	-1.0 C (30.2 F)
1988	-1.0 C (30.2 F)
1989	-3.5 C (25.7 F)
1990	-1.2 C (29.8 F)
1991	-1.0 C (30.2 F)
1992	-1.5 C (29.3 F)
1993	-1.0 C (30.2 F)
1994	-2.0 C (28.4 F)
1995	-3.2 C (26.2 F)
1996	-2.0 C (28.4 F)
1997	-3.5 C (25.7 F)
1998	-3.7 C (25.3 F)
1999	-3.2 C (26.2 F)
2000	-3.0 C (26.6 F)
2001	-2.0 C (28.4 F)
2002	-3.7 C (25.3 F)
2003	-3.0 C (26.6 F)
2004	-3.5 C (25.7 F)
2005	-1.5 C (29.3 F)
2006	-3.0 C (26.6 F)
2007	-3.0 C (26.6 F)
2008	-1.8 C (28.8 F)
2009	-1.5 C (29.3 F)
2010	-1.5 C (29.3 F)
2011	-3.0 C (26.6 F)
2012	-3.0 C (26.6 F)
2014	-4.6 C (23.7 F)
2015	-3.2 C (26.2 F)
2016	-1.1 C (30.0 F)
2017	-3.9 C (25.0 F)
2018	-3.0 C (26.6 F)
2019	-3.0 C (26.6 F)
2020	-3.2 C (26.2 F)
2021	-2.2 C (28.0 F)
2022	-6.0 C (21.2 F)
2023	-4.0 C (24.8 F)
2024	-3.5 C (25.7 F)
2025	-2.0 C (28.4 F)

Wettest day (Rx1day)

The wettest day of the year at Hillston Airport, 1881 to 2025. The record is 123.0 mm (4.8 in) in 2012, marked on the chart; the median year is 39.8 mm (1.6 in).

Wettest day (Rx1day) at Hillston Airport by year
Year	Wettest day (Rx1day)
1881	46.7 mm (1.8 in)
1882	32.3 mm (1.3 in)
1883	46.2 mm (1.8 in)
1884	0.8 mm (0.03 in)
1885	26.4 mm (1.0 in)
1886	15.2 mm (0.6 in)
1889	29.7 mm (1.2 in)
1890	47.0 mm (1.9 in)
1891	72.4 mm (2.9 in)
1892	30.2 mm (1.2 in)
1893	45.7 mm (1.8 in)
1894	55.4 mm (2.2 in)
1895	22.6 mm (0.9 in)
1896	55.6 mm (2.2 in)
1897	43.4 mm (1.7 in)
1898	47.5 mm (1.9 in)
1899	23.6 mm (0.9 in)
1900	38.9 mm (1.5 in)
1901	24.4 mm (1.0 in)
1902	13.7 mm (0.5 in)
1903	19.6 mm (0.8 in)
1904	24.4 mm (1.0 in)
1905	30.2 mm (1.2 in)
1906	38.1 mm (1.5 in)
1907	35.8 mm (1.4 in)
1908	78.7 mm (3.1 in)
1909	31.8 mm (1.3 in)
1910	27.4 mm (1.1 in)
1911	53.3 mm (2.1 in)
1912	50.0 mm (2.0 in)
1913	75.7 mm (3.0 in)
1914	23.6 mm (0.9 in)
1915	19.3 mm (0.8 in)
1916	44.7 mm (1.8 in)
1917	36.8 mm (1.4 in)
1918	38.1 mm (1.5 in)
1919	17.3 mm (0.7 in)
1920	59.7 mm (2.4 in)
1921	48.3 mm (1.9 in)
1922	50.8 mm (2.0 in)
1923	43.2 mm (1.7 in)
1924	58.4 mm (2.3 in)
1925	43.2 mm (1.7 in)
1926	41.9 mm (1.6 in)
1927	18.3 mm (0.7 in)
1928	105.2 mm (4.1 in)
1929	60.2 mm (2.4 in)
1930	52.6 mm (2.1 in)
1931	46.2 mm (1.8 in)
1932	37.1 mm (1.5 in)
1933	36.1 mm (1.4 in)
1934	32.5 mm (1.3 in)
1935	24.9 mm (1.0 in)
1936	45.7 mm (1.8 in)
1937	55.9 mm (2.2 in)
1938	18.5 mm (0.7 in)
1939	96.0 mm (3.8 in)
1940	24.6 mm (1.0 in)
1941	46.2 mm (1.8 in)
1942	22.6 mm (0.9 in)
1943	44.2 mm (1.7 in)
1944	37.1 mm (1.5 in)
1945	21.6 mm (0.9 in)
1946	58.4 mm (2.3 in)
1947	39.6 mm (1.6 in)
1948	44.5 mm (1.8 in)
1949	37.1 mm (1.5 in)
1950	119.6 mm (4.7 in)
1951	24.1 mm (0.9 in)
1952	32.0 mm (1.3 in)
1953	23.9 mm (0.9 in)
1954	31.5 mm (1.2 in)
1955	34.0 mm (1.3 in)
1956	56.1 mm (2.2 in)
1957	17.5 mm (0.7 in)
1958	37.3 mm (1.5 in)
1959	89.2 mm (3.5 in)
1960	40.6 mm (1.6 in)
1961	40.6 mm (1.6 in)
1962	40.4 mm (1.6 in)
1963	24.4 mm (1.0 in)
1964	34.8 mm (1.4 in)
1965	18.8 mm (0.7 in)
1966	30.7 mm (1.2 in)
1967	39.1 mm (1.5 in)
1968	33.3 mm (1.3 in)
1969	52.1 mm (2.1 in)
1970	31.5 mm (1.2 in)
1971	50.5 mm (2.0 in)
1972	50.3 mm (2.0 in)
1973	35.8 mm (1.4 in)
1974	57.2 mm (2.3 in)
1975	24.3 mm (1.0 in)
1976	54.8 mm (2.2 in)
1977	33.9 mm (1.3 in)
1978	37.0 mm (1.5 in)
1979	33.6 mm (1.3 in)
1980	49.0 mm (1.9 in)
1981	27.0 mm (1.1 in)
1982	47.0 mm (1.9 in)
1983	70.6 mm (2.8 in)
1984	89.0 mm (3.5 in)
1985	46.0 mm (1.8 in)
1986	58.0 mm (2.3 in)
1987	59.6 mm (2.3 in)
1988	44.0 mm (1.7 in)
1989	74.0 mm (2.9 in)
1990	42.8 mm (1.7 in)
1991	25.8 mm (1.0 in)
1992	28.4 mm (1.1 in)
1993	45.0 mm (1.8 in)
1994	39.0 mm (1.5 in)
1995	42.0 mm (1.7 in)
1996	42.4 mm (1.7 in)
1997	28.0 mm (1.1 in)
1998	68.2 mm (2.7 in)
1999	32.4 mm (1.3 in)
2000	64.2 mm (2.5 in)
2001	46.8 mm (1.8 in)
2002	23.8 mm (0.9 in)
2003	56.0 mm (2.2 in)
2004	40.0 mm (1.6 in)
2005	26.4 mm (1.0 in)
2006	32.0 mm (1.3 in)
2007	48.0 mm (1.9 in)
2008	30.4 mm (1.2 in)
2009	26.0 mm (1.0 in)
2010	73.4 mm (2.9 in)
2011	61.0 mm (2.4 in)
2012	123.0 mm (4.8 in)
2014	29.4 mm (1.2 in)
2015	37.2 mm (1.5 in)
2016	50.0 mm (2.0 in)
2017	43.9 mm (1.7 in)
2018	20.0 mm (0.8 in)
2019	39.0 mm (1.5 in)
2020	54.2 mm (2.1 in)
2021	58.2 mm (2.3 in)
2022	35.0 mm (1.4 in)
2023	41.4 mm (1.6 in)
2024	66.0 mm (2.6 in)
2025	23.6 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hillston Airport, 1881 to 2025. The record is 254.4 mm (10.0 in) in 2012, marked on the chart; the median year is 56.7 mm (2.2 in).

Wettest five days (Rx5day) at Hillston Airport by year
Year	Wettest five days (Rx5day)
1881	77.2 mm (3.0 in)
1882	41.4 mm (1.6 in)
1883	56.6 mm (2.2 in)
1884	0.8 mm (0.03 in)
1885	47.2 mm (1.9 in)
1886	15.2 mm (0.6 in)
1889	40.4 mm (1.6 in)
1890	49.6 mm (2.0 in)
1891	77.2 mm (3.0 in)
1892	47.0 mm (1.9 in)
1893	60.4 mm (2.4 in)
1894	138.7 mm (5.5 in)
1895	36.2 mm (1.4 in)
1896	72.6 mm (2.9 in)
1897	53.1 mm (2.1 in)
1898	56.4 mm (2.2 in)
1899	42.2 mm (1.7 in)
1900	62.3 mm (2.5 in)
1901	27.7 mm (1.1 in)
1902	21.5 mm (0.8 in)
1903	34.3 mm (1.4 in)
1904	41.7 mm (1.6 in)
1905	81.8 mm (3.2 in)
1906	68.0 mm (2.7 in)
1907	55.1 mm (2.2 in)
1908	78.7 mm (3.1 in)
1909	47.0 mm (1.9 in)
1910	64.4 mm (2.5 in)
1911	68.8 mm (2.7 in)
1912	72.6 mm (2.9 in)
1913	91.8 mm (3.6 in)
1914	28.7 mm (1.1 in)
1915	47.2 mm (1.9 in)
1916	68.8 mm (2.7 in)
1917	63.5 mm (2.5 in)
1918	51.1 mm (2.0 in)
1919	36.9 mm (1.5 in)
1920	90.2 mm (3.6 in)
1921	95.0 mm (3.7 in)
1922	75.7 mm (3.0 in)
1923	52.3 mm (2.1 in)
1924	96.5 mm (3.8 in)
1925	81.5 mm (3.2 in)
1926	41.9 mm (1.6 in)
1927	33.0 mm (1.3 in)
1928	133.9 mm (5.3 in)
1929	60.5 mm (2.4 in)
1930	56.2 mm (2.2 in)
1931	49.6 mm (2.0 in)
1932	56.7 mm (2.2 in)
1933	60.7 mm (2.4 in)
1934	50.8 mm (2.0 in)
1935	28.4 mm (1.1 in)
1936	65.8 mm (2.6 in)
1937	62.2 mm (2.4 in)
1938	36.9 mm (1.5 in)
1939	110.7 mm (4.4 in)
1940	24.6 mm (1.0 in)
1941	62.0 mm (2.4 in)
1942	38.9 mm (1.5 in)
1943	69.8 mm (2.7 in)
1944	37.4 mm (1.5 in)
1945	45.2 mm (1.8 in)
1946	68.8 mm (2.7 in)
1947	82.1 mm (3.2 in)
1948	48.3 mm (1.9 in)
1949	68.4 mm (2.7 in)
1950	181.6 mm (7.1 in)
1951	31.4 mm (1.2 in)
1952	57.1 mm (2.2 in)
1953	38.9 mm (1.5 in)
1954	47.5 mm (1.9 in)
1955	37.8 mm (1.5 in)
1956	86.8 mm (3.4 in)
1957	33.2 mm (1.3 in)
1958	45.4 mm (1.8 in)
1959	107.7 mm (4.2 in)
1960	52.0 mm (2.0 in)
1961	64.2 mm (2.5 in)
1962	50.3 mm (2.0 in)
1963	53.6 mm (2.1 in)
1964	52.3 mm (2.1 in)
1965	23.2 mm (0.9 in)
1966	61.3 mm (2.4 in)
1967	42.5 mm (1.7 in)
1968	68.1 mm (2.7 in)
1969	82.8 mm (3.3 in)
1970	59.4 mm (2.3 in)
1971	127.5 mm (5.0 in)
1972	68.3 mm (2.7 in)
1973	54.3 mm (2.1 in)
1974	86.9 mm (3.4 in)
1975	34.5 mm (1.4 in)
1976	58.2 mm (2.3 in)
1977	44.2 mm (1.7 in)
1978	40.0 mm (1.6 in)
1979	46.0 mm (1.8 in)
1980	66.4 mm (2.6 in)
1981	47.6 mm (1.9 in)
1982	68.0 mm (2.7 in)
1983	113.8 mm (4.5 in)
1984	127.0 mm (5.0 in)
1985	71.6 mm (2.8 in)
1986	64.0 mm (2.5 in)
1987	59.6 mm (2.3 in)
1988	53.8 mm (2.1 in)
1989	80.6 mm (3.2 in)
1990	63.6 mm (2.5 in)
1991	32.4 mm (1.3 in)
1992	57.4 mm (2.3 in)
1993	70.0 mm (2.8 in)
1994	39.0 mm (1.5 in)
1995	57.4 mm (2.3 in)
1996	45.8 mm (1.8 in)
1997	41.2 mm (1.6 in)
1998	88.6 mm (3.5 in)
1999	51.4 mm (2.0 in)
2000	67.6 mm (2.7 in)
2001	46.8 mm (1.8 in)
2002	29.8 mm (1.2 in)
2003	81.8 mm (3.2 in)
2004	58.4 mm (2.3 in)
2005	39.8 mm (1.6 in)
2006	40.0 mm (1.6 in)
2007	81.0 mm (3.2 in)
2008	42.4 mm (1.7 in)
2009	38.0 mm (1.5 in)
2010	134.0 mm (5.3 in)
2011	61.0 mm (2.4 in)
2012	254.4 mm (10.0 in)
2014	43.0 mm (1.7 in)
2015	66.2 mm (2.6 in)
2016	71.2 mm (2.8 in)
2017	50.5 mm (2.0 in)
2018	26.5 mm (1.0 in)
2019	43.6 mm (1.7 in)
2020	65.6 mm (2.6 in)
2021	72.4 mm (2.9 in)
2022	75.4 mm (3.0 in)
2023	56.6 mm (2.2 in)
2024	69.4 mm (2.7 in)
2025	31.6 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hillston Airport, 1881 to 2025. The record is 120 days in 1923, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Hillston Airport by year
Year	Longest dry spell (CDD)
1881	45 days
1882	49 days
1883	48 days
1884	31 days
1885	25 days
1886	42 days
1889	26 days
1890	35 days
1891	35 days
1892	52 days
1893	90 days
1894	32 days
1895	32 days
1896	29 days
1897	95 days
1898	62 days
1899	54 days
1900	40 days
1901	52 days
1902	57 days
1903	63 days
1904	54 days
1905	47 days
1906	30 days
1907	31 days
1908	43 days
1909	34 days
1910	57 days
1911	58 days
1912	73 days
1913	40 days
1914	71 days
1915	47 days
1916	39 days
1917	35 days
1918	29 days
1919	40 days
1920	45 days
1921	60 days
1922	38 days
1923	120 days
1924	33 days
1925	29 days
1926	65 days
1927	75 days
1928	28 days
1929	47 days
1930	40 days
1931	37 days
1932	30 days
1933	42 days
1934	48 days
1935	38 days
1936	39 days
1937	40 days
1938	79 days
1939	40 days
1940	86 days
1941	35 days
1942	23 days
1943	47 days
1944	58 days
1945	38 days
1946	56 days
1947	22 days
1948	54 days
1949	28 days
1950	37 days
1951	79 days
1952	43 days
1953	56 days
1954	50 days
1955	42 days
1956	31 days
1957	50 days
1958	60 days
1959	32 days
1960	30 days
1961	34 days
1962	46 days
1963	33 days
1964	51 days
1965	80 days
1966	29 days
1967	80 days
1968	38 days
1969	34 days
1970	30 days
1971	39 days
1972	40 days
1973	24 days
1974	34 days
1975	27 days
1976	31 days
1977	26 days
1978	42 days
1979	38 days
1980	40 days
1981	32 days
1982	60 days
1983	52 days
1984	57 days
1985	43 days
1986	35 days
1987	34 days
1988	26 days
1989	35 days
1990	35 days
1991	64 days
1992	34 days
1993	25 days
1994	37 days
1995	60 days
1996	44 days
1997	58 days
1998	55 days
1999	48 days
2000	30 days
2001	31 days
2002	68 days
2003	50 days
2004	42 days
2005	60 days
2006	53 days
2007	46 days
2008	44 days
2009	32 days
2010	32 days
2011	20 days
2012	25 days
2014	29 days
2015	42 days
2016	32 days
2017	41 days
2018	47 days
2019	25 days
2020	20 days
2021	37 days
2022	34 days
2023	27 days
2024	27 days
2025	26 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

59 years with a frost

Across 59 years with a frost, the median last spring frost at Hillston Airport falls on 24 August and the median first autumn frost on 3 June, which leaves a median of 285 days between them.

Fitted over all years, the growing season changes by -4.8 days per decade at this station.

Frost dates and growing season at Hillston Airport
Measure	Median, all years	Earliest period	Recent period (1991 to 2023)	Recent against earliest	Fitted trend
Last spring frost	24 August	n/a	26 August	n/a	+2.5 days per decade
First autumn frost	3 June	n/a	1 June	n/a	-2.3 days per decade
Growing days	285 days	n/a	278 days	n/a	-4.8 days per decade

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

134 years, 1881 to 2024

A day with at least 39.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 108.3 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Hillston Airport: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.8 mm (1.6 in)
5 years	56.4 mm (2.2 in)
10 years	68.0 mm (2.7 in)
25 years	83.6 mm (3.3 in)
50 years	95.7 mm (3.8 in)
100 years	108.3 mm (4.3 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 134 years of values from 1881 to 2024.

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: 123.0 mm (4.8 in) in 2012; 119.6 mm (4.7 in) in 1950; 105.2 mm (4.1 in) in 1928.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Hillston Airport, at 1998. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.3 C (0.5 F) lower than in the years before (likely change).

Suspected changes in the annual mean temperature at Hillston Airport, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1998	-0.3	-0.5	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2007 to 2023 against 1961 to 1990

Over 2007 to 2023, Hillston Airport had a mean temperature of 18.1 C (64.5 F) and 427.3 mm (16.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Condobolin Retirement Village (Australia, 158 km away), Ivanhoe Post Office (Australia, 132 km away) and Cobar Mo (Australia, 225 km away).

Climate twins of Hillston Airport: stations whose 1961 to 1990 climate is closest to its 2007 to 2023 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Condobolin Retirement Village	Australia	158 km (98 mi)	17.7 C (63.8 F)	495.2 mm (19.5 in)	0.67
Ivanhoe Post Office	Australia	132 km (82 mi)	18.1 C (64.6 F)	298.6 mm (11.8 in)	0.75
Cobar Mo	Australia	225 km (140 mi)	18.8 C (65.8 F)	411.5 mm (16.2 in)	0.84

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Hillston Airport standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hillston Airport 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).