Ivanhoe Post Office Weather Records (ASN00049019)

Record envelope, standing records and threshold days for Ivanhoe Post Office (ASN00049019), Australia, with 133 years of record.

Key Facts for Ivanhoe Post Office

Ivanhoe Post Office (ASN00049019) is a weather station in Australia at -32.90 latitude and 144.30 longitude, 85 m (279 ft) above sea level.
The station reports from 1884 to 2016, 133 years of record.
1,464 records set at Ivanhoe Post Office still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ivanhoe Post Office set a daily record precipitation of 13.6 mm (0.5 in) on 28 January 2016.

About the Station

Location: Australia, -32.90 latitude, 144.30 longitude.
Elevation: 85 m (279 ft).
Period of record: 1884 to 2016, 133 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 Ivanhoe Post Office. 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 Ivanhoe Post Office, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	48.0 C (118.4 F)	8.0 C (46.4 F)	n/a	n/a
Feb	48.5 C (119.3 F)	6.6 C (43.9 F)	n/a	n/a
Mar	43.1 C (109.6 F)	4.5 C (40.1 F)	n/a	n/a
Apr	39.0 C (102.2 F)	-0.5 C (31.1 F)	n/a	n/a
May	30.8 C (87.4 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	26.8 C (80.2 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	26.0 C (78.8 F)	-6.2 C (20.8 F)	n/a	n/a
Aug	31.7 C (89.1 F)	-4.0 C (24.8 F)	n/a	n/a
Sep	39.2 C (102.6 F)	-1.2 C (29.8 F)	n/a	n/a
Oct	40.5 C (104.9 F)	0.2 C (32.4 F)	n/a	n/a
Nov	45.6 C (114.1 F)	2.0 C (35.6 F)	n/a	n/a
Dec	46.1 C (115.0 F)	6.0 C (42.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ivanhoe Post Office still stand. 1965 holds the most, with 43.

Standing records at Ivanhoe Post Office by the year they were set
Year set	Standing records
1959	28
1960	29
1961	39
1962	30
1963	26
1964	26
1965	43
1966	25
1967	21
1968	21
1969	31
1970	32
1971	14
1972	20
1973	15
1974	27
1975	20
1976	22
1977	29
1978	28
1979	13
1980	18
1981	26
1982	22
1983	27
1984	34
1985	29
1986	33
1987	26
1988	24
1989	28
1990	38
1991	28
1992	28
1993	21
1994	33
1995	40
1996	25
1997	21
1998	31
1999	34
2000	15
2001	22
2002	29
2003	30
2004	30
2005	37
2006	34
2007	32
2008	19
2009	43
2010	18
2011	34
2012	16

All-Time Record Progression

6 new records

6 all-time records were set at Ivanhoe Post Office between 26 February 1946 and 15 February 2004. Each dot is a new record.

When Ivanhoe Post Office set new all-time records
Date	Kind	Detail
1946-02-26	Record daily precipitation	Record daily precipitation 92.2 mm (3.6 in)
1979-01-21	Record daily precipitation	Record daily precipitation 102.4 mm (4.0 in)
1990-01-03	Record high maximum temperature	Record high maximum temperature 48.0 C (118.4 F)
1994-12-21	Record high minimum temperature	Record high minimum temperature 34.0 C (93.2 F)
1995-07-09	Record low maximum temperature	Record low maximum temperature 7.3 C (45.1 F)
2004-02-15	Record high maximum temperature	Record high maximum temperature 48.5 C (119.3 F)

Wettest Day of Each Month

Jan: 102.4 mm (4.0 in)

The wettest day on record for each calendar month at Ivanhoe Post Office. The most was 102.4 mm (4.0 in) on 21 January 1979.

Record daily precipitation for each month at Ivanhoe Post Office
Month	Record daily precipitation (mm)	Date
Jan	102.4 mm (4.0 in)	21 January 1979
Feb	92.2 mm (3.6 in)	26 February 1946
Mar	81.3 mm (3.2 in)	7 March 1939
Apr	81.3 mm (3.2 in)	8 April 1939
May	58.4 mm (2.3 in)	23 May 1906
Jun	60.0 mm (2.4 in)	10 June 1995
Jul	38.4 mm (1.5 in)	30 July 1923
Aug	49.2 mm (1.9 in)	30 August 2004
Sep	38.4 mm (1.5 in)	17 September 1903
Oct	80.2 mm (3.2 in)	15 October 2010
Nov	79.0 mm (3.1 in)	17 November 1961
Dec	85.3 mm (3.4 in)	31 December 1983

Period of Record Coverage

1959 to 2013

55 years of record at Ivanhoe Post Office, 1959 to 2013. 13 years have data for under 90 percent of days and are left out of rankings: 1967, 1968, 1973, 1974, 1975, 1978, 1979, 1980 and others.

Days with data per year at Ivanhoe Post Office
Year	Days with data	Share of year	Complete
1959	360	99%	Yes
1960	353	96%	Yes
1961	357	98%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	345	95%	Yes
1967	283	78%	No
1968	295	81%	No
1969	354	97%	Yes
1970	337	92%	Yes
1971	345	95%	Yes
1972	333	91%	Yes
1973	302	83%	No
1974	253	69%	No
1975	134	37%	No
1976	356	97%	Yes
1977	336	92%	Yes
1978	253	69%	No
1979	288	79%	No
1980	313	86%	No
1981	340	93%	Yes
1982	351	96%	Yes
1983	307	84%	No
1984	325	89%	No
1985	337	92%	Yes
1986	349	96%	Yes
1987	342	94%	Yes
1988	356	97%	Yes
1989	358	98%	Yes
1990	335	92%	Yes
1991	330	90%	Yes
1992	339	93%	Yes
1993	325	89%	No
1994	340	93%	Yes
1995	334	92%	Yes
1996	336	92%	Yes
1997	349	96%	Yes
1998	346	95%	Yes
1999	362	99%	Yes
2000	355	97%	Yes
2001	348	95%	Yes
2002	356	98%	Yes
2003	339	93%	Yes
2004	337	92%	Yes
2005	343	94%	Yes
2006	346	95%	Yes
2007	345	95%	Yes
2008	357	98%	Yes
2009	355	97%	Yes
2010	356	98%	Yes
2011	357	98%	Yes
2012	261	71%	No
2013	4	1%	No

Latest Records

Latest records at Ivanhoe Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 January 2016	Ivanhoe Post Office, AU	daily rain	13.6 mm (0.5 in)	2.7 mm (0.11 in)	104 years	20 of 100 (Routine)
21 December 2015	Ivanhoe Post Office, AU	daily rain	13.1 mm (0.5 in)	1.1 mm (0.04 in)	22 years	17 of 100 (Routine)
3 September 2015	Ivanhoe Post Office, AU	daily rain	10.8 mm (0.4 in)	3.9 mm (0.15 in)	45 years	20 of 100 (Routine)
22 July 2015	Ivanhoe Post Office, AU	daily rain	13.1 mm (0.5 in)	1.9 mm (0.07 in)	52 years	20 of 100 (Routine)
15 June 2015	Ivanhoe Post Office, AU	daily rain	11.1 mm (0.4 in)	1.2 mm (0.05 in)	116 years	20 of 100 (Routine)
3 May 2014	Ivanhoe Post Office, AU	daily rain	21.8 mm (0.9 in)	6.8 mm (0.27 in)	25 years	20 of 100 (Routine)
11 April 2014	Ivanhoe Post Office, AU	daily rain	36.0 mm (1.4 in)	0.3 mm (0.01 in)	40 years	22 of 100 (Routine)
19 October 2012	Ivanhoe Post Office, AU	daily high max	39.0 C (102.2 F)	1.4 C (2.5 F)	4 years	8 of 100 (Routine)
25 September 2012	Ivanhoe Post Office, AU	daily low min	0.5 C (32.9 F)	1.0 C (1.8 F)	36 years	17 of 100 (Routine)
8 August 2012	Ivanhoe Post Office, AU	daily high max	23.0 C (73.4 F)	0.3 C (0.5 F)	5 years	6 of 100 (Routine)
10 July 2012	Ivanhoe Post Office, AU	daily rain	16.0 mm (0.6 in)	1.3 mm (0.05 in)	112 years	20 of 100 (Routine)
10 July 2012	Ivanhoe Post Office, AU	daily high min	11.8 C (53.2 F)	1.3 C (2.3 F)	18 years	13 of 100 (Routine)
7 July 2012	Ivanhoe Post Office, AU	daily low min	-3.8 C (25.2 F)	1.6 C (2.9 F)	53 years	24 of 100 (Routine)
6 July 2012	Ivanhoe Post Office, AU	daily low min	-3.5 C (25.7 F)	1.3 C (2.3 F)	53 years	23 of 100 (Routine)
16 June 2012	Ivanhoe Post Office, AU	daily rain	10.0 mm (0.4 in)	2.4 mm (0.09 in)	118 years	20 of 100 (Routine)
10 June 2012	Ivanhoe Post Office, AU	daily low min	-2.6 C (27.3 F)	1.8 C (3.2 F)	16 years	13 of 100 (Routine)
8 June 2012	Ivanhoe Post Office, AU	daily low min	-2.0 C (28.4 F)	0.9 C (1.6 F)	42 years	19 of 100 (Routine)
9 May 2012	Ivanhoe Post Office, AU	daily high max	29.0 C (84.2 F)	0.5 C (0.9 F)	7 years	8 of 100 (Routine)
12 April 2012	Ivanhoe Post Office, AU	daily low min (Tie)	4.0 C (39.2 F)	tie	33 years	3 of 100 (Routine)
11 April 2012	Ivanhoe Post Office, AU	daily low min	3.5 C (38.3 F)	0.5 C (0.9 F)	33 years	15 of 100 (Routine)

Climate Trend

39 complete years, 1959 to 2011

One stripe for each of 39 complete years at Ivanhoe Post Office, 1959 to 2011. Blue stripes are years cooler than the station's own mean of 18.5 C (65.2 F); red stripes are warmer. The coolest year was 1976, at 17.2 C (62.9 F), and the warmest was 2009, at 19.9 C (67.7 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Ivanhoe Post Office as warming stripes, 1959 to 2011
Year	Annual mean temperature	Difference from the station mean
1959	18.9 C	+0.47 C
1960	18.3 C	-0.17 C
1961	18.7 C	+0.23 C
1962	17.9 C	-0.57 C
1963	18.1 C	-0.34 C
1964	17.8 C	-0.66 C
1965	18.6 C	+0.13 C
1966	17.9 C	-0.58 C
1969	18.0 C	-0.48 C
1970	18.0 C	-0.45 C
1972	18.5 C	+0.01 C
1976	17.2 C	-1.28 C
1977	18.4 C	-0.07 C
1982	18.6 C	+0.13 C
1985	17.9 C	-0.57 C
1986	17.9 C	-0.58 C
1987	18.1 C	-0.33 C
1988	18.6 C	+0.18 C
1989	17.7 C	-0.73 C
1990	18.4 C	-0.01 C
1992	17.7 C	-0.76 C
1994	18.1 C	-0.32 C
1995	17.9 C	-0.55 C
1996	18.0 C	-0.45 C
1997	18.9 C	+0.45 C
1998	18.2 C	-0.27 C
1999	18.9 C	+0.41 C
2000	18.5 C	+0.03 C
2001	18.8 C	+0.38 C
2002	19.3 C	+0.87 C
2003	19.2 C	+0.79 C
2004	19.2 C	+0.79 C
2005	19.4 C	+0.92 C
2006	19.2 C	+0.76 C
2007	19.8 C	+1.32 C
2008	18.9 C	+0.48 C
2009	19.9 C	+1.41 C
2010	18.1 C	-0.37 C
2011	18.4 C	-0.03 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1959 to 2011. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ivanhoe Post Office
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1959 to 2011	39	Rise
Mean daily maximum	0.2 C (0.1 to 0.4) per decade	0.4 F (0.1 to 0.7) per decade	1959 to 2011	39	Rise
Mean daily minimum	0.13 C (0.02 to 0.23) per decade	0.23 F (0.04 to 0.42) per decade	1959 to 2011	39	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

1884 to 2016

Yearly extremes at Ivanhoe Post Office: 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)	2004	44.5 C (112.1 F)	55
Coldest night (TNn)	-6.2 C (20.8 F)	1982	-3.0 C (26.6 F)	55
Wettest day (Rx1day)	102.4 mm (4.0 in)	1979	35.8 mm (1.4 in)	133
Wettest five days (Rx5day)	246.5 mm (9.7 in)	2012	53.1 mm (2.1 in)	133
Longest dry spell (CDD)	135 days	1897	47 days	133

Hottest day (TXx)

The hottest day of the year at Ivanhoe Post Office, 1884 to 2016. The record is 48.5 C (119.3 F) in 2004, marked on the chart; the median year is 44.5 C (112.1 F).

Hottest day (TXx) at Ivanhoe Post Office by year
Year	Hottest day (TXx)
1884	n/a
1885	n/a
1886	n/a
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	44.4 C (111.9 F)
1960	45.0 C (113.0 F)
1961	43.3 C (109.9 F)
1962	42.8 C (109.0 F)
1963	45.0 C (113.0 F)
1964	46.1 C (115.0 F)
1965	44.4 C (111.9 F)
1966	44.4 C (111.9 F)
1967	43.3 C (109.9 F)
1968	45.6 C (114.1 F)
1969	42.8 C (109.0 F)
1970	44.4 C (111.9 F)
1971	42.8 C (109.0 F)
1972	45.1 C (113.2 F)
1973	46.6 C (115.9 F)
1974	39.0 C (102.2 F)
1975	40.9 C (105.6 F)
1976	43.4 C (110.1 F)
1977	43.0 C (109.4 F)
1978	42.6 C (108.7 F)
1979	41.4 C (106.5 F)
1980	44.9 C (112.8 F)
1981	45.5 C (113.9 F)
1982	45.8 C (114.4 F)
1983	44.7 C (112.5 F)
1984	41.0 C (105.8 F)
1985	45.1 C (113.2 F)
1986	43.1 C (109.6 F)
1987	44.5 C (112.1 F)
1988	45.7 C (114.3 F)
1989	43.0 C (109.4 F)
1990	48.0 C (118.4 F)
1991	43.5 C (110.3 F)
1992	45.0 C (113.0 F)
1993	44.7 C (112.5 F)
1994	45.7 C (114.3 F)
1995	41.0 C (105.8 F)
1996	43.0 C (109.4 F)
1997	44.5 C (112.1 F)
1998	43.5 C (110.3 F)
1999	45.0 C (113.0 F)
2000	43.6 C (110.5 F)
2001	46.6 C (115.9 F)
2002	45.2 C (113.4 F)
2003	45.2 C (113.4 F)
2004	48.5 C (119.3 F)
2005	46.1 C (115.0 F)
2006	46.8 C (116.2 F)
2007	46.0 C (114.8 F)
2008	42.9 C (109.2 F)
2009	47.0 C (116.6 F)
2010	44.7 C (112.5 F)
2011	42.6 C (108.7 F)
2012	42.5 C (108.5 F)
2013	37.0 C (98.6 F)
2014	n/a
2015	n/a
2016	n/a

Coldest night (TNn)

The coldest night of the year at Ivanhoe Post Office, 1884 to 2016. The record is -6.2 C (20.8 F) in 1982, marked on the chart; the median year is -3.0 C (26.6 F).

Coldest night (TNn) at Ivanhoe Post Office by year
Year	Coldest night (TNn)
1884	n/a
1885	n/a
1886	n/a
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	-3.9 C (25.0 F)
1960	-2.8 C (27.0 F)
1961	-5.6 C (21.9 F)
1962	-4.4 C (24.1 F)
1963	-2.2 C (28.0 F)
1964	-1.7 C (28.9 F)
1965	-3.9 C (25.0 F)
1966	-4.4 C (24.1 F)
1967	-2.8 C (27.0 F)
1968	-2.8 C (27.0 F)
1969	-2.2 C (28.0 F)
1970	-3.9 C (25.0 F)
1971	-3.3 C (26.1 F)
1972	-2.2 C (28.0 F)
1973	-4.2 C (24.4 F)
1974	-2.5 C (27.5 F)
1975	-2.0 C (28.4 F)
1976	-3.3 C (26.1 F)
1977	-3.8 C (25.2 F)
1978	-1.2 C (29.8 F)
1979	-3.0 C (26.6 F)
1980	4.5 C (40.1 F)
1981	-2.0 C (28.4 F)
1982	-6.2 C (20.8 F)
1983	-3.5 C (25.7 F)
1984	-2.9 C (26.8 F)
1985	-4.0 C (24.8 F)
1986	-5.1 C (22.8 F)
1987	-2.5 C (27.5 F)
1988	-1.7 C (28.9 F)
1989	-3.6 C (25.5 F)
1990	-3.0 C (26.6 F)
1991	-2.0 C (28.4 F)
1992	-4.0 C (24.8 F)
1993	-2.7 C (27.1 F)
1994	-4.0 C (24.8 F)
1995	-4.3 C (24.3 F)
1996	-3.7 C (25.3 F)
1997	-4.5 C (23.9 F)
1998	-4.2 C (24.4 F)
1999	-3.5 C (25.7 F)
2000	-2.0 C (28.4 F)
2001	-2.5 C (27.5 F)
2002	-3.1 C (26.4 F)
2003	-1.8 C (28.8 F)
2004	-4.5 C (23.9 F)
2005	-0.9 C (30.4 F)
2006	-3.0 C (26.6 F)
2007	-4.2 C (24.4 F)
2008	-2.0 C (28.4 F)
2009	-2.0 C (28.4 F)
2010	-2.0 C (28.4 F)
2011	-3.0 C (26.6 F)
2012	-3.8 C (25.2 F)
2013	13.0 C (55.4 F)
2014	n/a
2015	n/a
2016	n/a

Wettest day (Rx1day)

The wettest day of the year at Ivanhoe Post Office, 1884 to 2016. The record is 102.4 mm (4.0 in) in 1979, marked on the chart; the median year is 35.8 mm (1.4 in).

Wettest day (Rx1day) at Ivanhoe Post Office by year
Year	Wettest day (Rx1day)
1884	29.0 mm (1.1 in)
1885	39.4 mm (1.6 in)
1886	38.1 mm (1.5 in)
1887	54.6 mm (2.1 in)
1888	30.7 mm (1.2 in)
1889	48.3 mm (1.9 in)
1890	53.1 mm (2.1 in)
1891	86.4 mm (3.4 in)
1892	42.7 mm (1.7 in)
1893	68.6 mm (2.7 in)
1894	71.1 mm (2.8 in)
1895	33.8 mm (1.3 in)
1896	26.7 mm (1.1 in)
1897	35.6 mm (1.4 in)
1898	39.4 mm (1.6 in)
1899	28.4 mm (1.1 in)
1900	25.7 mm (1.0 in)
1901	27.7 mm (1.1 in)
1902	27.9 mm (1.1 in)
1903	38.4 mm (1.5 in)
1904	61.0 mm (2.4 in)
1905	36.3 mm (1.4 in)
1906	58.4 mm (2.3 in)
1907	22.1 mm (0.9 in)
1908	27.4 mm (1.1 in)
1909	20.3 mm (0.8 in)
1910	27.4 mm (1.1 in)
1911	56.4 mm (2.2 in)
1912	35.6 mm (1.4 in)
1913	17.3 mm (0.7 in)
1914	19.1 mm (0.8 in)
1915	29.2 mm (1.1 in)
1916	33.0 mm (1.3 in)
1917	29.5 mm (1.2 in)
1918	35.6 mm (1.4 in)
1919	18.5 mm (0.7 in)
1920	48.8 mm (1.9 in)
1921	68.8 mm (2.7 in)
1922	57.2 mm (2.3 in)
1923	47.8 mm (1.9 in)
1924	28.7 mm (1.1 in)
1925	25.1 mm (1.0 in)
1926	31.2 mm (1.2 in)
1927	30.7 mm (1.2 in)
1928	28.4 mm (1.1 in)
1929	41.7 mm (1.6 in)
1930	38.9 mm (1.5 in)
1931	35.6 mm (1.4 in)
1932	52.8 mm (2.1 in)
1933	35.8 mm (1.4 in)
1934	41.1 mm (1.6 in)
1935	17.3 mm (0.7 in)
1936	70.1 mm (2.8 in)
1937	26.2 mm (1.0 in)
1938	43.9 mm (1.7 in)
1939	81.3 mm (3.2 in)
1940	19.1 mm (0.8 in)
1941	25.7 mm (1.0 in)
1942	29.7 mm (1.2 in)
1943	33.0 mm (1.3 in)
1944	17.0 mm (0.7 in)
1945	17.0 mm (0.7 in)
1946	92.2 mm (3.6 in)
1947	36.8 mm (1.4 in)
1948	25.7 mm (1.0 in)
1949	22.4 mm (0.9 in)
1950	48.8 mm (1.9 in)
1951	26.7 mm (1.1 in)
1952	24.1 mm (0.9 in)
1953	32.5 mm (1.3 in)
1954	44.2 mm (1.7 in)
1955	45.5 mm (1.8 in)
1956	49.3 mm (1.9 in)
1957	27.2 mm (1.1 in)
1958	17.8 mm (0.7 in)
1959	38.6 mm (1.5 in)
1960	45.2 mm (1.8 in)
1961	79.0 mm (3.1 in)
1962	26.2 mm (1.0 in)
1963	27.7 mm (1.1 in)
1964	22.4 mm (0.9 in)
1965	45.2 mm (1.8 in)
1966	29.0 mm (1.1 in)
1967	10.2 mm (0.4 in)
1968	71.9 mm (2.8 in)
1969	36.6 mm (1.4 in)
1970	43.4 mm (1.7 in)
1971	33.3 mm (1.3 in)
1972	27.9 mm (1.1 in)
1973	37.8 mm (1.5 in)
1974	80.4 mm (3.2 in)
1975	44.2 mm (1.7 in)
1976	41.2 mm (1.6 in)
1977	19.8 mm (0.8 in)
1978	32.4 mm (1.3 in)
1979	102.4 mm (4.0 in)
1980	29.7 mm (1.2 in)
1981	40.2 mm (1.6 in)
1982	62.5 mm (2.5 in)
1983	85.3 mm (3.4 in)
1984	68.1 mm (2.7 in)
1985	32.4 mm (1.3 in)
1986	28.6 mm (1.1 in)
1987	35.4 mm (1.4 in)
1988	54.4 mm (2.1 in)
1989	50.0 mm (2.0 in)
1990	37.0 mm (1.5 in)
1991	47.8 mm (1.9 in)
1992	30.0 mm (1.2 in)
1993	42.0 mm (1.7 in)
1994	78.0 mm (3.1 in)
1995	60.0 mm (2.4 in)
1996	65.6 mm (2.6 in)
1997	48.4 mm (1.9 in)
1998	39.3 mm (1.5 in)
1999	31.4 mm (1.2 in)
2000	51.8 mm (2.0 in)
2001	23.4 mm (0.9 in)
2002	14.1 mm (0.6 in)
2003	25.8 mm (1.0 in)
2004	49.2 mm (1.9 in)
2005	49.0 mm (1.9 in)
2006	23.0 mm (0.9 in)
2007	33.6 mm (1.3 in)
2008	34.2 mm (1.3 in)
2009	32.0 mm (1.3 in)
2010	80.2 mm (3.2 in)
2011	52.8 mm (2.1 in)
2012	73.4 mm (2.9 in)
2013	39.0 mm (1.5 in)
2014	36.0 mm (1.4 in)
2015	19.0 mm (0.7 in)
2016	13.6 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ivanhoe Post Office, 1884 to 2016. The record is 246.5 mm (9.7 in) in 2012, marked on the chart; the median year is 53.1 mm (2.1 in).

Wettest five days (Rx5day) at Ivanhoe Post Office by year
Year	Wettest five days (Rx5day)
1884	29.8 mm (1.2 in)
1885	78.3 mm (3.1 in)
1886	59.4 mm (2.3 in)
1887	86.9 mm (3.4 in)
1888	75.3 mm (3.0 in)
1889	61.0 mm (2.4 in)
1890	53.1 mm (2.1 in)
1891	87.2 mm (3.4 in)
1892	59.4 mm (2.3 in)
1893	81.6 mm (3.2 in)
1894	147.4 mm (5.8 in)
1895	34.3 mm (1.4 in)
1896	41.2 mm (1.6 in)
1897	50.6 mm (2.0 in)
1898	58.5 mm (2.3 in)
1899	35.2 mm (1.4 in)
1900	43.2 mm (1.7 in)
1901	27.7 mm (1.1 in)
1902	28.4 mm (1.1 in)
1903	43.5 mm (1.7 in)
1904	61.0 mm (2.4 in)
1905	39.6 mm (1.6 in)
1906	91.4 mm (3.6 in)
1907	30.7 mm (1.2 in)
1908	28.4 mm (1.1 in)
1909	35.5 mm (1.4 in)
1910	33.5 mm (1.3 in)
1911	99.3 mm (3.9 in)
1912	53.1 mm (2.1 in)
1913	31.3 mm (1.2 in)
1914	20.4 mm (0.8 in)
1915	42.3 mm (1.7 in)
1916	56.0 mm (2.2 in)
1917	42.2 mm (1.7 in)
1918	51.3 mm (2.0 in)
1919	36.0 mm (1.4 in)
1920	86.4 mm (3.4 in)
1921	100.3 mm (3.9 in)
1922	58.5 mm (2.3 in)
1923	112.0 mm (4.4 in)
1924	58.9 mm (2.3 in)
1925	43.3 mm (1.7 in)
1926	41.4 mm (1.6 in)
1927	30.7 mm (1.2 in)
1928	35.3 mm (1.4 in)
1929	60.0 mm (2.4 in)
1930	75.0 mm (3.0 in)
1931	35.6 mm (1.4 in)
1932	88.9 mm (3.5 in)
1933	92.9 mm (3.7 in)
1934	67.6 mm (2.7 in)
1935	36.1 mm (1.4 in)
1936	140.2 mm (5.5 in)
1937	34.3 mm (1.4 in)
1938	55.1 mm (2.2 in)
1939	92.7 mm (3.6 in)
1940	19.1 mm (0.8 in)
1941	47.3 mm (1.9 in)
1942	40.7 mm (1.6 in)
1943	57.4 mm (2.3 in)
1944	17.0 mm (0.7 in)
1945	37.3 mm (1.5 in)
1946	100.1 mm (3.9 in)
1947	67.5 mm (2.7 in)
1948	30.7 mm (1.2 in)
1949	64.2 mm (2.5 in)
1950	114.6 mm (4.5 in)
1951	56.6 mm (2.2 in)
1952	38.4 mm (1.5 in)
1953	41.7 mm (1.6 in)
1954	46.0 mm (1.8 in)
1955	56.7 mm (2.2 in)
1956	89.9 mm (3.5 in)
1957	58.4 mm (2.3 in)
1958	27.7 mm (1.1 in)
1959	42.7 mm (1.7 in)
1960	45.7 mm (1.8 in)
1961	112.5 mm (4.4 in)
1962	65.9 mm (2.6 in)
1963	67.1 mm (2.6 in)
1964	36.4 mm (1.4 in)
1965	55.6 mm (2.2 in)
1966	39.9 mm (1.6 in)
1967	19.4 mm (0.8 in)
1968	78.8 mm (3.1 in)
1969	56.1 mm (2.2 in)
1970	54.6 mm (2.1 in)
1971	43.7 mm (1.7 in)
1972	41.4 mm (1.6 in)
1973	43.9 mm (1.7 in)
1974	156.8 mm (6.2 in)
1975	51.8 mm (2.0 in)
1976	53.2 mm (2.1 in)
1977	23.2 mm (0.9 in)
1978	35.4 mm (1.4 in)
1979	120.2 mm (4.7 in)
1980	43.9 mm (1.7 in)
1981	55.4 mm (2.2 in)
1982	68.5 mm (2.7 in)
1983	116.4 mm (4.6 in)
1984	131.8 mm (5.2 in)
1985	48.5 mm (1.9 in)
1986	34.0 mm (1.3 in)
1987	45.6 mm (1.8 in)
1988	118.6 mm (4.7 in)
1989	96.8 mm (3.8 in)
1990	69.6 mm (2.7 in)
1991	51.4 mm (2.0 in)
1992	50.6 mm (2.0 in)
1993	80.4 mm (3.2 in)
1994	26.0 mm (1.0 in)
1995	65.0 mm (2.6 in)
1996	65.8 mm (2.6 in)
1997	53.6 mm (2.1 in)
1998	92.7 mm (3.6 in)
1999	60.2 mm (2.4 in)
2000	102.6 mm (4.0 in)
2001	25.6 mm (1.0 in)
2002	14.8 mm (0.6 in)
2003	27.6 mm (1.1 in)
2004	69.8 mm (2.7 in)
2005	49.2 mm (1.9 in)
2006	36.8 mm (1.4 in)
2007	61.6 mm (2.4 in)
2008	45.0 mm (1.8 in)
2009	44.6 mm (1.8 in)
2010	133.2 mm (5.2 in)
2011	141.2 mm (5.6 in)
2012	246.5 mm (9.7 in)
2013	14.0 mm (0.6 in)
2014	45.0 mm (1.8 in)
2015	23.9 mm (0.9 in)
2016	19.6 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ivanhoe Post Office, 1884 to 2016. The record is 135 days in 1897, marked on the chart; the median year is 47 days.

Longest dry spell (CDD) at Ivanhoe Post Office by year
Year	Longest dry spell (CDD)
1884	32 days
1885	45 days
1886	32 days
1887	26 days
1888	62 days
1889	81 days
1890	23 days
1891	34 days
1892	96 days
1893	75 days
1894	35 days
1895	60 days
1896	39 days
1897	135 days
1898	56 days
1899	54 days
1900	33 days
1901	62 days
1902	58 days
1903	33 days
1904	42 days
1905	60 days
1906	57 days
1907	24 days
1908	66 days
1909	42 days
1910	63 days
1911	60 days
1912	90 days
1913	34 days
1914	100 days
1915	49 days
1916	25 days
1917	36 days
1918	54 days
1919	43 days
1920	57 days
1921	40 days
1922	51 days
1923	113 days
1924	34 days
1925	50 days
1926	68 days
1927	51 days
1928	56 days
1929	60 days
1930	42 days
1931	33 days
1932	38 days
1933	48 days
1934	52 days
1935	42 days
1936	38 days
1937	74 days
1938	91 days
1939	45 days
1940	94 days
1941	64 days
1942	37 days
1943	42 days
1944	76 days
1945	51 days
1946	59 days
1947	37 days
1948	55 days
1949	40 days
1950	43 days
1951	50 days
1952	48 days
1953	56 days
1954	50 days
1955	28 days
1956	32 days
1957	62 days
1958	35 days
1959	38 days
1960	28 days
1961	81 days
1962	56 days
1963	28 days
1964	85 days
1965	57 days
1966	36 days
1967	71 days
1968	39 days
1969	34 days
1970	40 days
1971	41 days
1972	74 days
1973	24 days
1974	32 days
1975	32 days
1976	42 days
1977	50 days
1978	36 days
1979	38 days
1980	38 days
1981	37 days
1982	91 days
1983	49 days
1984	62 days
1985	44 days
1986	37 days
1987	35 days
1988	51 days
1989	29 days
1990	57 days
1991	51 days
1992	54 days
1993	41 days
1994	70 days
1995	35 days
1996	47 days
1997	56 days
1998	59 days
1999	48 days
2000	41 days
2001	43 days
2002	64 days
2003	57 days
2004	89 days
2005	42 days
2006	53 days
2007	47 days
2008	44 days
2009	32 days
2010	32 days
2011	43 days
2012	68 days
2013	15 days
2014	18 days
2015	45 days
2016	25 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Ivanhoe Post Office falls on 23 August and the median first autumn frost on 30 May, which leaves a median of 282 days between them.

Fitted over all years, the growing season changes by -1.4 days per decade at this station.

Frost dates and growing season at Ivanhoe Post Office
Measure	Median, all years	Earliest period	Recent period (1970 to 2011)	Recent against earliest	Fitted trend
Last spring frost	23 August	n/a	25 August	n/a	+2.7 days per decade
First autumn frost	30 May	n/a	2 June	n/a	+1.3 days per decade
Growing days	282 days	n/a	284 days	n/a	-1.4 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

125 years, 1885 to 2011

A day with at least 36.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 106.7 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ivanhoe Post Office: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	36.6 mm (1.4 in)
5 years	52.7 mm (2.1 in)
10 years	64.4 mm (2.5 in)
25 years	80.3 mm (3.2 in)
50 years	93.1 mm (3.7 in)
100 years	106.7 mm (4.2 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 125 years of values from 1885 to 2011.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 102.4 mm (4.0 in) in 1979; 92.2 mm (3.6 in) in 1946; 86.4 mm (3.4 in) in 1891.

Download the Data

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