Prospect Reservoir Weather Records (ASN00067019)

Record envelope, standing records and threshold days for Prospect Reservoir (ASN00067019), Australia, with 140 years of record.

Key Facts for Prospect Reservoir

Prospect Reservoir (ASN00067019) is a weather station in Australia at -33.82 latitude and 150.91 longitude, 61 m (200 ft) above sea level.
The station reports from 1887 to 2026, 140 years of record.
1,464 records set at Prospect Reservoir still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Prospect Reservoir set a daily record precipitation of 88.0 mm (3.5 in) on 27 February 2026.

About the Station

Location: Australia, -33.82 latitude, 150.91 longitude.
Elevation: 61 m (200 ft).
Period of record: 1887 to 2026, 140 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 Prospect Reservoir. 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 Prospect Reservoir, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	45.3 C (113.5 F)	10.0 C (50.0 F)	n/a	n/a
Feb	43.3 C (109.9 F)	10.8 C (51.4 F)	n/a	n/a
Mar	39.5 C (103.1 F)	7.9 C (46.2 F)	n/a	n/a
Apr	37.1 C (98.8 F)	3.6 C (38.5 F)	n/a	n/a
May	29.4 C (84.9 F)	1.2 C (34.2 F)	n/a	n/a
Jun	25.6 C (78.1 F)	-0.8 C (30.6 F)	n/a	n/a
Jul	27.1 C (80.8 F)	-0.6 C (30.9 F)	n/a	n/a
Aug	29.4 C (84.9 F)	-0.5 C (31.1 F)	n/a	n/a
Sep	34.5 C (94.1 F)	1.7 C (35.1 F)	n/a	n/a
Oct	39.0 C (102.2 F)	0.0 C (32.0 F)	n/a	n/a
Nov	42.0 C (107.6 F)	0.0 C (32.0 F)	n/a	n/a
Dec	42.7 C (108.9 F)	7.8 C (46.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Prospect Reservoir still stand. 1990 holds the most, with 48.

Standing records at Prospect Reservoir by the year they were set
Year set	Standing records
1965	20
1966	32
1967	37
1968	31
1969	30
1970	24
1971	20
1972	14
1973	18
1974	16
1975	30
1976	22
1977	27
1978	24
1979	25
1980	33
1981	22
1982	24
1983	24
1984	22
1985	16
1986	28
1987	27
1988	28
1989	19
1990	48
1991	28
1992	24
1993	12
1994	35
1995	44
1996	48
1997	30
1998	33
1999	18
2000	24
2001	24
2002	24
2003	25
2004	20
2005	31
2006	42
2007	24
2008	34
2009	37
2010	20
2011	25
2012	20
2013	35
2014	21
2015	24
2016	35
2017	45
2018	21

All-Time Record Progression

9 new records

9 all-time records were set at Prospect Reservoir between 16 April 1946 and 10 February 2020. Each dot is a new record.

When Prospect Reservoir set new all-time records
Date	Kind	Detail
1946-04-16	Record daily precipitation	Record daily precipitation 163.1 mm (6.4 in)
1956-02-11	Record daily precipitation	Record daily precipitation 164.6 mm (6.5 in)
1998-01-18	Record high maximum temperature	Record high maximum temperature 42.9 C (109.2 F)
2001-01-15	Record high maximum temperature	Record high maximum temperature 44.7 C (112.5 F)
2005-08-13	Record low minimum temperature	Record low minimum temperature -0.5 C (31.1 F)
2007-07-17	Record low minimum temperature	Record low minimum temperature -0.6 C (30.9 F)
2010-06-30	Record low minimum temperature	Record low minimum temperature -0.8 C (30.6 F)
2018-01-07	Record high maximum temperature	Record high maximum temperature 45.3 C (113.5 F)
2020-02-10	Record daily precipitation	Record daily precipitation 165.0 mm (6.5 in)

Wettest Day of Each Month

Feb: 165.0 mm (6.5 in)

The wettest day on record for each calendar month at Prospect Reservoir. The most was 165.0 mm (6.5 in) on 10 February 2020.

Record daily precipitation for each month at Prospect Reservoir
Month	Record daily precipitation (mm)	Date
Jan	161.2 mm (6.3 in)	31 January 2001
Feb	165.0 mm (6.5 in)	10 February 2020
Mar	153.9 mm (6.1 in)	20 March 1892
Apr	163.1 mm (6.4 in)	16 April 1946
May	163.6 mm (6.4 in)	1 May 1988
Jun	163.4 mm (6.4 in)	11 June 1991
Jul	143.5 mm (5.6 in)	10 July 1904
Aug	108.0 mm (4.3 in)	2 August 1990
Sep	96.5 mm (3.8 in)	2 September 1970
Oct	102.1 mm (4.0 in)	5 October 1916
Nov	126.2 mm (5.0 in)	14 November 1969
Dec	154.9 mm (6.1 in)	13 December 1910

Period of Record Coverage

1965 to 2018

54 years of record at Prospect Reservoir, 1965 to 2018. 1 years have data for under 90 percent of days and are left out of rankings: 2018.

Days with data per year at Prospect Reservoir
Year	Days with data	Share of year	Complete
1965	365	100%	Yes
1966	332	91%	Yes
1967	363	99%	Yes
1968	363	99%	Yes
1969	365	100%	Yes
1970	334	92%	Yes
1971	352	96%	Yes
1972	365	100%	Yes
1973	345	95%	Yes
1974	364	100%	Yes
1975	331	91%	Yes
1976	365	100%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	361	99%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	362	99%	Yes
1983	365	100%	Yes
1984	364	99%	Yes
1985	363	99%	Yes
1986	364	100%	Yes
1987	357	98%	Yes
1988	364	99%	Yes
1989	360	99%	Yes
1990	364	100%	Yes
1991	357	98%	Yes
1992	365	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	363	99%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	362	99%	Yes
2001	362	99%	Yes
2002	363	99%	Yes
2003	364	100%	Yes
2004	364	99%	Yes
2005	365	100%	Yes
2006	363	99%	Yes
2007	361	99%	Yes
2008	366	100%	Yes
2009	350	96%	Yes
2010	362	99%	Yes
2011	360	99%	Yes
2012	351	96%	Yes
2013	357	98%	Yes
2014	365	100%	Yes
2015	361	99%	Yes
2016	366	100%	Yes
2017	344	94%	Yes
2018	140	38%	No

Latest Records

Latest records at Prospect Reservoir
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 February 2026	Prospect Reservoir, AU	daily rain	88.0 mm (3.5 in)	20.9 mm (0.8 in)	133 years	52 of 100 (Notable)
21 August 2025	Prospect Reservoir, AU	daily rain	35.0 mm (1.4 in)	4.5 mm (0.18 in)	124 years	44 of 100 (Notable)
7 June 2024	Prospect Reservoir, AU	daily rain	29.0 mm (1.1 in)	0.8 mm (0.03 in)	125 years	40 of 100 (Notable)
6 April 2024	Prospect Reservoir, AU	daily rain	124.0 mm (4.9 in)	54.9 mm (2.2 in)	91 years	76 of 100 (Major)
5 April 2024	Prospect Reservoir, AU	daily rain	58.0 mm (2.3 in)	8.2 mm (0.32 in)	34 years	25 of 100 (Routine)
5 November 2023	Prospect Reservoir, AU	daily rain (Tie)	31.0 mm (1.2 in)	tie	1 year	2 of 100 (Routine)
9 October 2022	Prospect Reservoir, AU	daily rain	47.0 mm (1.9 in)	20.8 mm (0.8 in)	104 years	60 of 100 (Major)
6 October 2022	Prospect Reservoir, AU	daily rain	37.0 mm (1.5 in)	8.6 mm (0.34 in)	105 years	48 of 100 (Notable)
5 July 2022	Prospect Reservoir, AU	daily rain	131.0 mm (5.2 in)	54.8 mm (2.2 in)	121 years	78 of 100 (Major)
3 July 2022	Prospect Reservoir, AU	daily rain	122.0 mm (4.8 in)	90.0 mm (3.5 in)	100 years	80 of 100 (Exceptional)
3 March 2022	Prospect Reservoir, AU	daily rain	94.0 mm (3.7 in)	41.0 mm (1.6 in)	45 years	48 of 100 (Notable)
23 February 2022	Prospect Reservoir, AU	daily rain	93.0 mm (3.7 in)	22.6 mm (0.9 in)	44 years	36 of 100 (Notable)
5 November 2021	Prospect Reservoir, AU	daily rain	31.0 mm (1.2 in)	3.6 mm (0.14 in)	121 years	43 of 100 (Notable)
24 August 2021	Prospect Reservoir, AU	daily rain	35.0 mm (1.4 in)	9.1 mm (0.36 in)	110 years	48 of 100 (Notable)
22 March 2021	Prospect Reservoir, AU	daily rain	57.0 mm (2.2 in)	24.8 mm (1.0 in)	39 years	36 of 100 (Notable)
10 August 2020	Prospect Reservoir, AU	daily rain	30.0 mm (1.2 in)	5.4 mm (0.21 in)	76 years	37 of 100 (Notable)
10 February 2020	Prospect Reservoir, AU	all-time rain	165.0 mm (6.5 in)	0.4 mm (0.02 in)	63 years	49 of 100 (Notable)
19 September 2019	Prospect Reservoir, AU	daily rain	35.0 mm (1.4 in)	9.1 mm (0.36 in)	101 years	49 of 100 (Notable)
18 September 2019	Prospect Reservoir, AU	daily rain	74.0 mm (2.9 in)	13.0 mm (0.5 in)	104 years	54 of 100 (Notable)
18 March 2019	Prospect Reservoir, AU	daily rain	45.0 mm (1.8 in)	5.4 mm (0.21 in)	36 years	23 of 100 (Routine)

Climate Trend

48 complete years, 1965 to 2017

One stripe for each of 48 complete years at Prospect Reservoir, 1965 to 2017. 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 1967, at 16.8 C (62.3 F), and the warmest was 2016, at 18.8 C (65.8 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Prospect Reservoir as warming stripes, 1965 to 2017
Year	Annual mean temperature	Difference from the station mean
1965	17.0 C	-0.74 C
1967	16.8 C	-0.93 C
1968	17.6 C	-0.19 C
1969	17.2 C	-0.53 C
1971	16.9 C	-0.89 C
1972	17.3 C	-0.45 C
1974	17.2 C	-0.59 C
1976	17.1 C	-0.63 C
1978	17.4 C	-0.39 C
1979	18.1 C	+0.35 C
1980	18.5 C	+0.71 C
1981	17.7 C	-0.11 C
1982	17.7 C	-0.08 C
1983	17.7 C	-0.05 C
1984	17.1 C	-0.69 C
1985	17.3 C	-0.46 C
1986	17.3 C	-0.49 C
1987	17.6 C	-0.22 C
1988	17.9 C	+0.17 C
1989	17.3 C	-0.48 C
1990	18.4 C	+0.65 C
1991	18.2 C	+0.42 C
1992	16.9 C	-0.88 C
1993	17.6 C	-0.19 C
1994	17.6 C	-0.17 C
1995	17.0 C	-0.73 C
1996	17.2 C	-0.62 C
1997	18.0 C	+0.21 C
1998	18.4 C	+0.59 C
1999	17.8 C	-0.01 C
2000	17.8 C	-0.01 C
2001	18.1 C	+0.30 C
2002	18.1 C	+0.37 C
2003	17.9 C	+0.13 C
2004	18.3 C	+0.53 C
2005	18.3 C	+0.53 C
2006	18.1 C	+0.33 C
2007	18.3 C	+0.48 C
2008	17.4 C	-0.36 C
2009	18.6 C	+0.83 C
2010	18.2 C	+0.43 C
2011	17.7 C	-0.11 C
2012	17.7 C	-0.11 C
2013	18.5 C	+0.72 C
2014	18.5 C	+0.73 C
2015	18.2 C	+0.45 C
2016	18.8 C	+1.01 C
2017	18.7 C	+0.95 C

The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1965 to 2017. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Prospect Reservoir
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.2 to 0.3) per decade	0.4 F (0.3 to 0.6) per decade	1965 to 2017	48	Rise
Mean daily maximum	0.4 C (0.3 to 0.5) per decade	0.8 F (0.5 to 1.0) per decade	1965 to 2017	48	Rise
Mean daily minimum	0.06 C (-0.03 to 0.15) per decade	0.1 F (-0.1 to 0.3) per decade	1965 to 2017	48	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

1887 to 2026

Yearly extremes at Prospect Reservoir: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.3 C (113.5 F)	2018	40.1 C (104.2 F)	54
Coldest night (TNn)	-0.8 C (30.6 F)	2010	1.2 C (34.2 F)	54
Wettest day (Rx1day)	165.0 mm (6.5 in)	2020	83.4 mm (3.3 in)	140
Wettest five days (Rx5day)	368.0 mm (14.5 in)	2020	138.7 mm (5.5 in)	140
Longest dry spell (CDD)	81 days	1946	27 days	140

Hottest day (TXx)

The hottest day of the year at Prospect Reservoir, 1887 to 2026. The record is 45.3 C (113.5 F) in 2018, marked on the chart; the median year is 40.1 C (104.2 F).

Hottest day (TXx) at Prospect Reservoir by year
Year	Hottest day (TXx)
1887	n/a
1888	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	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	36.7 C (98.1 F)
1966	36.1 C (97.0 F)
1967	36.1 C (97.0 F)
1968	40.0 C (104.0 F)
1969	38.0 C (100.4 F)
1970	35.6 C (96.1 F)
1971	37.9 C (100.2 F)
1972	38.5 C (101.3 F)
1973	38.5 C (101.3 F)
1974	37.5 C (99.5 F)
1975	40.0 C (104.0 F)
1976	39.0 C (102.2 F)
1977	42.5 C (108.5 F)
1978	39.0 C (102.2 F)
1979	42.8 C (109.0 F)
1980	42.2 C (108.0 F)
1981	39.4 C (102.9 F)
1982	41.6 C (106.9 F)
1983	41.2 C (106.2 F)
1984	38.6 C (101.5 F)
1985	39.5 C (103.1 F)
1986	39.3 C (102.7 F)
1987	39.6 C (103.3 F)
1988	39.0 C (102.2 F)
1989	35.4 C (95.7 F)
1990	42.0 C (107.6 F)
1991	40.4 C (104.7 F)
1992	37.3 C (99.1 F)
1993	40.5 C (104.9 F)
1994	42.7 C (108.9 F)
1995	37.0 C (98.6 F)
1996	38.8 C (101.8 F)
1997	41.3 C (106.3 F)
1998	42.9 C (109.2 F)
1999	37.4 C (99.3 F)
2000	41.9 C (107.4 F)
2001	44.7 C (112.5 F)
2002	41.6 C (106.9 F)
2003	44.5 C (112.1 F)
2004	40.7 C (105.3 F)
2005	42.0 C (107.6 F)
2006	43.8 C (110.8 F)
2007	41.0 C (105.8 F)
2008	37.1 C (98.8 F)
2009	42.0 C (107.6 F)
2010	42.5 C (108.5 F)
2011	41.3 C (106.3 F)
2012	38.8 C (101.8 F)
2013	40.2 C (104.4 F)
2014	39.9 C (103.8 F)
2015	40.4 C (104.7 F)
2016	41.0 C (105.8 F)
2017	43.4 C (110.1 F)
2018	45.3 C (113.5 F)
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Prospect Reservoir, 1887 to 2026. The record is -0.8 C (30.6 F) in 2010, marked on the chart; the median year is 1.2 C (34.2 F).

Coldest night (TNn) at Prospect Reservoir by year
Year	Coldest night (TNn)
1887	n/a
1888	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	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	4.4 C (39.9 F)
1966	3.3 C (37.9 F)
1967	4.4 C (39.9 F)
1968	1.1 C (34.0 F)
1969	1.7 C (35.1 F)
1970	0.0 C (32.0 F)
1971	1.9 C (35.4 F)
1972	3.2 C (37.8 F)
1973	2.5 C (36.5 F)
1974	0.5 C (32.9 F)
1975	2.0 C (35.6 F)
1976	2.0 C (35.6 F)
1977	1.0 C (33.8 F)
1978	0.0 C (32.0 F)
1979	1.0 C (33.8 F)
1980	1.6 C (34.9 F)
1981	0.1 C (32.2 F)
1982	1.3 C (34.3 F)
1983	0.4 C (32.7 F)
1984	1.7 C (35.1 F)
1985	1.2 C (34.2 F)
1986	0.5 C (32.9 F)
1987	1.2 C (34.2 F)
1988	2.1 C (35.8 F)
1989	0.4 C (32.7 F)
1990	3.6 C (38.5 F)
1991	1.0 C (33.8 F)
1992	0.9 C (33.6 F)
1993	2.5 C (36.5 F)
1994	1.1 C (34.0 F)
1995	0.5 C (32.9 F)
1996	0.0 C (32.0 F)
1997	1.4 C (34.5 F)
1998	1.3 C (34.3 F)
1999	2.0 C (35.6 F)
2000	0.1 C (32.2 F)
2001	2.3 C (36.1 F)
2002	0.5 C (32.9 F)
2003	1.0 C (33.8 F)
2004	2.2 C (36.0 F)
2005	-0.5 C (31.1 F)
2006	1.7 C (35.1 F)
2007	-0.6 C (30.9 F)
2008	1.0 C (33.8 F)
2009	1.2 C (34.2 F)
2010	-0.8 C (30.6 F)
2011	0.8 C (33.4 F)
2012	1.7 C (35.1 F)
2013	3.0 C (37.4 F)
2014	2.5 C (36.5 F)
2015	1.3 C (34.3 F)
2016	0.4 C (32.7 F)
2017	0.0 C (32.0 F)
2018	4.4 C (39.9 F)
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Prospect Reservoir, 1887 to 2026. The record is 165.0 mm (6.5 in) in 2020, marked on the chart; the median year is 83.4 mm (3.3 in).

Wettest day (Rx1day) at Prospect Reservoir by year
Year	Wettest day (Rx1day)
1887	98.6 mm (3.9 in)
1888	18.0 mm (0.7 in)
1889	88.9 mm (3.5 in)
1890	107.4 mm (4.2 in)
1891	86.6 mm (3.4 in)
1892	153.9 mm (6.1 in)
1893	79.2 mm (3.1 in)
1894	83.8 mm (3.3 in)
1895	76.2 mm (3.0 in)
1896	86.4 mm (3.4 in)
1897	112.3 mm (4.4 in)
1898	123.2 mm (4.9 in)
1899	77.5 mm (3.1 in)
1900	120.7 mm (4.8 in)
1901	34.0 mm (1.3 in)
1902	27.7 mm (1.1 in)
1903	34.3 mm (1.4 in)
1904	143.5 mm (5.6 in)
1905	74.9 mm (2.9 in)
1906	83.3 mm (3.3 in)
1907	48.8 mm (1.9 in)
1908	110.5 mm (4.4 in)
1909	70.1 mm (2.8 in)
1910	154.9 mm (6.1 in)
1911	109.7 mm (4.3 in)
1912	50.8 mm (2.0 in)
1913	101.6 mm (4.0 in)
1914	123.2 mm (4.9 in)
1915	72.4 mm (2.9 in)
1916	102.1 mm (4.0 in)
1917	111.8 mm (4.4 in)
1918	149.9 mm (5.9 in)
1919	62.2 mm (2.4 in)
1920	93.2 mm (3.7 in)
1921	75.4 mm (3.0 in)
1922	115.6 mm (4.6 in)
1923	86.9 mm (3.4 in)
1924	52.3 mm (2.1 in)
1925	44.5 mm (1.8 in)
1926	64.0 mm (2.5 in)
1927	106.2 mm (4.2 in)
1928	51.6 mm (2.0 in)
1929	87.6 mm (3.4 in)
1930	59.2 mm (2.3 in)
1931	111.8 mm (4.4 in)
1932	54.6 mm (2.1 in)
1933	73.7 mm (2.9 in)
1934	54.4 mm (2.1 in)
1935	67.1 mm (2.6 in)
1936	51.6 mm (2.0 in)
1937	72.4 mm (2.9 in)
1938	98.0 mm (3.9 in)
1939	32.0 mm (1.3 in)
1940	69.3 mm (2.7 in)
1941	51.1 mm (2.0 in)
1942	116.3 mm (4.6 in)
1943	101.1 mm (4.0 in)
1944	37.1 mm (1.5 in)
1945	73.9 mm (2.9 in)
1946	163.1 mm (6.4 in)
1947	41.1 mm (1.6 in)
1948	78.7 mm (3.1 in)
1949	96.8 mm (3.8 in)
1950	130.8 mm (5.1 in)
1951	122.2 mm (4.8 in)
1952	129.0 mm (5.1 in)
1953	118.9 mm (4.7 in)
1954	146.1 mm (5.8 in)
1955	100.1 mm (3.9 in)
1956	164.6 mm (6.5 in)
1957	54.6 mm (2.1 in)
1958	130.0 mm (5.1 in)
1959	90.2 mm (3.6 in)
1960	43.9 mm (1.7 in)
1961	94.2 mm (3.7 in)
1962	88.1 mm (3.5 in)
1963	96.5 mm (3.8 in)
1964	109.7 mm (4.3 in)
1965	45.7 mm (1.8 in)
1966	88.6 mm (3.5 in)
1967	99.3 mm (3.9 in)
1968	77.7 mm (3.1 in)
1969	140.0 mm (5.5 in)
1970	116.8 mm (4.6 in)
1971	43.2 mm (1.7 in)
1972	66.0 mm (2.6 in)
1973	64.0 mm (2.5 in)
1974	84.6 mm (3.3 in)
1975	95.0 mm (3.7 in)
1976	77.2 mm (3.0 in)
1977	70.4 mm (2.8 in)
1978	139.6 mm (5.5 in)
1979	42.0 mm (1.7 in)
1980	45.8 mm (1.8 in)
1981	77.7 mm (3.1 in)
1982	60.0 mm (2.4 in)
1983	72.0 mm (2.8 in)
1984	68.0 mm (2.7 in)
1985	51.8 mm (2.0 in)
1986	87.4 mm (3.4 in)
1987	88.8 mm (3.5 in)
1988	163.6 mm (6.4 in)
1989	61.2 mm (2.4 in)
1990	150.0 mm (5.9 in)
1991	163.4 mm (6.4 in)
1992	135.6 mm (5.3 in)
1993	70.0 mm (2.8 in)
1994	89.2 mm (3.5 in)
1995	92.0 mm (3.6 in)
1996	69.4 mm (2.7 in)
1997	62.0 mm (2.4 in)
1998	98.5 mm (3.9 in)
1999	73.6 mm (2.9 in)
2000	70.2 mm (2.8 in)
2001	161.2 mm (6.3 in)
2002	69.0 mm (2.7 in)
2003	55.2 mm (2.2 in)
2004	51.3 mm (2.0 in)
2005	39.6 mm (1.6 in)
2006	68.9 mm (2.7 in)
2007	83.6 mm (3.3 in)
2008	74.0 mm (2.9 in)
2009	51.5 mm (2.0 in)
2010	48.6 mm (1.9 in)
2011	47.8 mm (1.9 in)
2012	86.2 mm (3.4 in)
2013	100.5 mm (4.0 in)
2014	82.2 mm (3.2 in)
2015	100.6 mm (4.0 in)
2016	132.4 mm (5.2 in)
2017	70.6 mm (2.8 in)
2018	75.0 mm (3.0 in)
2019	74.0 mm (2.9 in)
2020	165.0 mm (6.5 in)
2021	67.0 mm (2.6 in)
2022	131.0 mm (5.2 in)
2023	56.0 mm (2.2 in)
2024	124.0 mm (4.9 in)
2025	93.0 mm (3.7 in)
2026	88.0 mm (3.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Prospect Reservoir, 1887 to 2026. The record is 368.0 mm (14.5 in) in 2020, marked on the chart; the median year is 138.7 mm (5.5 in).

Wettest five days (Rx5day) at Prospect Reservoir by year
Year	Wettest five days (Rx5day)
1887	124.1 mm (4.9 in)
1888	33.1 mm (1.3 in)
1889	185.7 mm (7.3 in)
1890	194.3 mm (7.6 in)
1891	158.5 mm (6.2 in)
1892	229.9 mm (9.1 in)
1893	140.6 mm (5.5 in)
1894	126.0 mm (5.0 in)
1895	129.0 mm (5.1 in)
1896	89.0 mm (3.5 in)
1897	151.2 mm (6.0 in)
1898	158.0 mm (6.2 in)
1899	102.3 mm (4.0 in)
1900	192.2 mm (7.6 in)
1901	81.8 mm (3.2 in)
1902	53.1 mm (2.1 in)
1903	74.2 mm (2.9 in)
1904	286.9 mm (11.3 in)
1905	104.4 mm (4.1 in)
1906	109.3 mm (4.3 in)
1907	78.2 mm (3.1 in)
1908	189.7 mm (7.5 in)
1909	122.7 mm (4.8 in)
1910	192.7 mm (7.6 in)
1911	167.1 mm (6.6 in)
1912	129.5 mm (5.1 in)
1913	157.9 mm (6.2 in)
1914	301.7 mm (11.9 in)
1915	116.6 mm (4.6 in)
1916	197.1 mm (7.8 in)
1917	141.3 mm (5.6 in)
1918	213.1 mm (8.4 in)
1919	140.4 mm (5.5 in)
1920	246.8 mm (9.7 in)
1921	124.3 mm (4.9 in)
1922	187.7 mm (7.4 in)
1923	98.4 mm (3.9 in)
1924	107.4 mm (4.2 in)
1925	88.9 mm (3.5 in)
1926	108.8 mm (4.3 in)
1927	268.4 mm (10.6 in)
1928	116.8 mm (4.6 in)
1929	176.3 mm (6.9 in)
1930	65.6 mm (2.6 in)
1931	135.7 mm (5.3 in)
1932	79.2 mm (3.1 in)
1933	158.8 mm (6.3 in)
1934	134.0 mm (5.3 in)
1935	95.9 mm (3.8 in)
1936	70.4 mm (2.8 in)
1937	131.8 mm (5.2 in)
1938	134.1 mm (5.3 in)
1939	69.3 mm (2.7 in)
1940	136.9 mm (5.4 in)
1941	75.2 mm (3.0 in)
1942	211.0 mm (8.3 in)
1943	250.0 mm (9.8 in)
1944	64.2 mm (2.5 in)
1945	173.0 mm (6.8 in)
1946	252.2 mm (9.9 in)
1947	104.6 mm (4.1 in)
1948	124.7 mm (4.9 in)
1949	233.5 mm (9.2 in)
1950	227.9 mm (9.0 in)
1951	338.9 mm (13.3 in)
1952	235.7 mm (9.3 in)
1953	193.6 mm (7.6 in)
1954	184.5 mm (7.3 in)
1955	145.1 mm (5.7 in)
1956	319.8 mm (12.6 in)
1957	89.9 mm (3.5 in)
1958	189.2 mm (7.4 in)
1959	110.8 mm (4.4 in)
1960	94.9 mm (3.7 in)
1961	295.9 mm (11.6 in)
1962	196.6 mm (7.7 in)
1963	163.5 mm (6.4 in)
1964	275.1 mm (10.8 in)
1965	132.2 mm (5.2 in)
1966	120.6 mm (4.7 in)
1967	147.8 mm (5.8 in)
1968	87.1 mm (3.4 in)
1969	174.7 mm (6.9 in)
1970	156.9 mm (6.2 in)
1971	93.6 mm (3.7 in)
1972	156.3 mm (6.2 in)
1973	112.3 mm (4.4 in)
1974	148.0 mm (5.8 in)
1975	153.2 mm (6.0 in)
1976	232.8 mm (9.2 in)
1977	123.8 mm (4.9 in)
1978	295.8 mm (11.6 in)
1979	105.8 mm (4.2 in)
1980	72.0 mm (2.8 in)
1981	130.5 mm (5.1 in)
1982	115.8 mm (4.6 in)
1983	185.2 mm (7.3 in)
1984	132.2 mm (5.2 in)
1985	94.8 mm (3.7 in)
1986	109.5 mm (4.3 in)
1987	127.4 mm (5.0 in)
1988	283.6 mm (11.2 in)
1989	145.5 mm (5.7 in)
1990	344.8 mm (13.6 in)
1991	270.9 mm (10.7 in)
1992	288.7 mm (11.4 in)
1993	85.4 mm (3.4 in)
1994	132.2 mm (5.2 in)
1995	136.6 mm (5.4 in)
1996	120.8 mm (4.8 in)
1997	158.1 mm (6.2 in)
1998	124.9 mm (4.9 in)
1999	105.2 mm (4.1 in)
2000	149.4 mm (5.9 in)
2001	248.8 mm (9.8 in)
2002	162.2 mm (6.4 in)
2003	115.8 mm (4.6 in)
2004	107.3 mm (4.2 in)
2005	75.9 mm (3.0 in)
2006	106.9 mm (4.2 in)
2007	131.0 mm (5.2 in)
2008	165.5 mm (6.5 in)
2009	114.9 mm (4.5 in)
2010	122.9 mm (4.8 in)
2011	94.0 mm (3.7 in)
2012	132.6 mm (5.2 in)
2013	143.5 mm (5.6 in)
2014	122.1 mm (4.8 in)
2015	250.3 mm (9.9 in)
2016	256.6 mm (10.1 in)
2017	140.9 mm (5.5 in)
2018	89.0 mm (3.5 in)
2019	141.0 mm (5.6 in)
2020	368.0 mm (14.5 in)
2021	263.0 mm (10.4 in)
2022	291.0 mm (11.5 in)
2023	64.0 mm (2.5 in)
2024	185.0 mm (7.3 in)
2025	153.0 mm (6.0 in)
2026	143.0 mm (5.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Prospect Reservoir, 1887 to 2026. The record is 81 days in 1946, marked on the chart; the median year is 27 days.

Longest dry spell (CDD) at Prospect Reservoir by year
Year	Longest dry spell (CDD)
1887	19 days
1888	27 days
1889	20 days
1890	21 days
1891	22 days
1892	16 days
1893	20 days
1894	28 days
1895	26 days
1896	22 days
1897	25 days
1898	21 days
1899	22 days
1900	32 days
1901	23 days
1902	24 days
1903	27 days
1904	35 days
1905	36 days
1906	21 days
1907	31 days
1908	25 days
1909	21 days
1910	33 days
1911	25 days
1912	32 days
1913	44 days
1914	25 days
1915	42 days
1916	21 days
1917	25 days
1918	32 days
1919	30 days
1920	31 days
1921	24 days
1922	21 days
1923	25 days
1924	26 days
1925	28 days
1926	26 days
1927	33 days
1928	26 days
1929	27 days
1930	42 days
1931	28 days
1932	22 days
1933	33 days
1934	17 days
1935	31 days
1936	27 days
1937	25 days
1938	24 days
1939	34 days
1940	30 days
1941	25 days
1942	23 days
1943	28 days
1944	26 days
1945	27 days
1946	81 days
1947	27 days
1948	26 days
1949	24 days
1950	14 days
1951	26 days
1952	25 days
1953	26 days
1954	30 days
1955	20 days
1956	15 days
1957	50 days
1958	34 days
1959	23 days
1960	18 days
1961	30 days
1962	34 days
1963	21 days
1964	51 days
1965	25 days
1966	20 days
1967	26 days
1968	74 days
1969	22 days
1970	40 days
1971	30 days
1972	22 days
1973	24 days
1974	31 days
1975	41 days
1976	30 days
1977	42 days
1978	26 days
1979	27 days
1980	39 days
1981	45 days
1982	42 days
1983	27 days
1984	26 days
1985	27 days
1986	27 days
1987	27 days
1988	42 days
1989	63 days
1990	20 days
1991	18 days
1992	22 days
1993	22 days
1994	38 days
1995	71 days
1996	30 days
1997	36 days
1998	15 days
1999	16 days
2000	19 days
2001	24 days
2002	35 days
2003	30 days
2004	49 days
2005	24 days
2006	33 days
2007	23 days
2008	20 days
2009	27 days
2010	17 days
2011	22 days
2012	30 days
2013	36 days
2014	31 days
2015	30 days
2016	24 days
2017	40 days
2018	27 days
2019	34 days
2020	19 days
2021	22 days
2022	33 days
2023	36 days
2024	41 days
2025	21 days
2026	28 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

138 years, 1887 to 2025

A day with at least 82.8 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 186.1 mm (7.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Prospect Reservoir: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	82.8 mm (3.3 in)
5 years	114.1 mm (4.5 in)
10 years	133.2 mm (5.2 in)
25 years	155.8 mm (6.1 in)
50 years	171.4 mm (6.7 in)
100 years	186.1 mm (7.3 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 138 years of values from 1887 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: 165.0 mm (6.5 in) in 2020; 164.6 mm (6.5 in) in 1956; 163.6 mm (6.4 in) in 1988.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2003 to 2017 against 1961 to 1990

Over 2003 to 2017, Prospect Reservoir had a mean temperature of 18.2 C (64.8 F) and 853.6 mm (33.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Kingaroy Prince Street (Australia, 813 km away), Cessnock (Nulkaba) (Australia, 119 km away) and Paterson (Tocal AWS) (Australia, 147 km away).

Climate twins of Prospect Reservoir: stations whose 1961 to 1990 climate is closest to its 2003 to 2017 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Kingaroy Prince Street	Australia	813 km (505 mi)	18.1 C (64.6 F)	803.2 mm (31.6 in)	0.50
Cessnock (Nulkaba)	Australia	119 km (74 mi)	17.6 C (63.7 F)	815.8 mm (32.1 in)	0.78
Paterson (Tocal AWS)	Australia	147 km (91 mi)	17.8 C (64.0 F)	991.0 mm (39.0 in)	0.80

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 Prospect Reservoir standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Prospect Reservoir 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).