Boronia climate — normals and trends

Q: What is the climate of Boronia?

Boronia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.5 °C and it receives 794 mm of precipitation per year.

Q: What is the hottest day ever recorded in Boronia?

The hottest day measured in Boronia between 1940 and 2025 was 7 February 2009, reaching 45.3 °C.

Q: What is the coldest day in Boronia?

The coldest day measured in Boronia between 1940 and 2025 was 21 July 1982, at -3.2 °C.

Q: Does it snow in Boronia?

Almost never: Boronia sees virtually no snow, with about 2 frost days per year.

Q: Has the climate of Boronia warmed?

Yes: Boronia warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Boronia?

The wettest day measured in Boronia between 1940 and 2025 was 22 April 1960, with 83 mm of rain in 24 hours.

Q: What was the windiest day in Boronia?

The windiest day measured in Boronia between 1940 and 2025 was 2 April 2008, with winds reaching 45.4 km/h.

Q: What is the warmest month in Boronia?

The warmest month in Boronia is January (19.0 °C on average); the coldest is July (8.1 °C).

Q: How much does it rain in Boronia?

Boronia receives on average 794 mm of precipitation per year, spread over about 129 rainy days.

Q: Is it sunny in Boronia?

Boronia gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Boronia (Australia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 13.5 °C and it receives 794 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is January (19.0 °C on average) and the coldest is July (8.1 °C). Rainfall peaks in October.

Boronia averages 2 frost days, 20 hot days (≥ 30 °C) and 129 rainy days per year.

Boronia has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The number of frost days there went from about 3 to 1 per year over the period.

The hottest day of the period reached 45.3 °C (on 7 February 2009) and the coldest -3.2 °C (on 21 July 1982).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

BoroniaVictoria

coords: -37.87°, 145.28°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthMarch

Mean daily temperature

13.5°C

Average daily high

18.4°C

Average daily low

9.1°C

Annual rainfall

794mm

Sunshine / day

9.8h

Mean relative humidity

73%

Average peak wind

17.3km/h

Seasonal range

10.9°C

Frost days (< 0 °C)

2 d/yr

Hot days (≥ 30 °C)

20 d/yr

Rainy days (≥ 1 mm)

129 d/yr

Annual snowfall

0.1 cm

Average feels-like high

16.8 °C

Average feels-like low

6.9 °C

Average peak gust

40.4 km/h

Tropical nights (≥ 20 °C)

2 d/yr

Solar radiation

15.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.44 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

45.3 °C

7 February 2009

Coldest day

-3.2 °C

21 July 1982

Wettest day

83 mm

22 April 1960

Windiest day

45.4 km/h

2 April 2008

Strongest gust

108.4 km/h

30 August 2005

Hottest feels-like

44.8 °C

25 January 2019

Coldest feels-like

-6.4 °C

21 July 1982

Snowiest day

0.9 cm

29 July 1998

Sunniest day

14.6 h

28 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.5 °C27 January 2025	-0.9 °C19 August 2025	14.2 °C	683 mm	37	2
2024	36.9 °C9 March 2024	-2.3 °C3 July 2024	14.2 °C	734 mm	26	2
2023	37.6 °C17 February 2023	-0.7 °C16 August 2023	14.1 °C	891 mm	18	1
2022	35.9 °C27 December 2022	-1.5 °C20 July 2022	13.9 °C	1,188 mm	23	3
2021	36.7 °C25 January 2021	0.0 °C8 July 2021	13.5 °C	863 mm	14	0
2020	41.5 °C31 January 2020	-0.2 °C29 June 2020	13.6 °C	966 mm	18	2
2019	42.7 °C25 January 2019	0.1 °C24 June 2019	14.2 °C	694 mm	34	0
2018	39.9 °C6 January 2018	-1.7 °C29 August 2018	14.2 °C	657 mm	21	2
2017	37.1 °C17 January 2017	-1.2 °C1 July 2017	14.1 °C	862 mm	30	3
2016	40.0 °C13 January 2016	1.0 °C5 August 2016	14.3 °C	900 mm	22	0
2015	40.0 °C19 December 2015	-1.1 °C19 July 2015	14.0 °C	636 mm	30	2
2014	40.9 °C14 January 2014	-0.9 °C3 August 2014	14.5 °C	703 mm	28	2
2013	39.7 °C4 January 2013	-1.1 °C23 June 2013	14.3 °C	768 mm	32	2
2012	37.3 °C2 January 2012	-0.2 °C8 July 2012	13.8 °C	856 mm	22	1
2011	37.0 °C1 February 2011	0.2 °C16 July 2011	13.8 °C	964 mm	10	0
2010	40.1 °C11 January 2010	-0.2 °C23 May 2010	13.8 °C	980 mm	21	1
2009	45.3 °C7 February 2009	-0.5 °C8 July 2009	14.2 °C	606 mm	33	2
2008	38.6 °C10 January 2008	0.1 °C25 July 2008	13.7 °C	620 mm	21	0
2007	38.9 °C16 January 2007	0.5 °C14 August 2007	14.5 °C	747 mm	33	0
2006	40.3 °C22 January 2006	-0.9 °C21 July 2006	13.4 °C	465 mm	26	2
2005	39.8 °C31 December 2005	0.7 °C25 June 2005	14.0 °C	763 mm	23	0
2004	38.2 °C14 February 2004	-0.3 °C16 August 2004	13.3 °C	824 mm	18	1
2003	41.4 °C25 January 2003	-1.4 °C20 August 2003	13.5 °C	755 mm	24	2
2002	33.9 °C15 February 2002	-0.7 °C25 August 2002	13.5 °C	588 mm	23	3
2001	37.1 °C11 January 2001	0.3 °C4 July 2001	13.4 °C	763 mm	25	0
2000	37.2 °C21 December 2000	-0.6 °C18 August 2000	13.7 °C	800 mm	26	1
1999	35.1 °C5 January 1999	-0.1 °C12 June 1999	13.8 °C	752 mm	16	1
1998	38.9 °C26 February 1998	-0.5 °C18 June 1998	13.4 °C	770 mm	26	1
1997	38.8 °C19 February 1997	-2.1 °C4 August 1997	13.6 °C	560 mm	28	2
1996	36.0 °C14 January 1996	-0.3 °C16 June 1996	12.8 °C	1,045 mm	6	2
1995	37.3 °C25 February 1995	-1.3 °C22 June 1995	12.7 °C	1,006 mm	13	1
1994	38.1 °C26 January 1994	-2.3 °C1 July 1994	13.1 °C	691 mm	21	9
1993	37.2 °C15 January 1993	-0.5 °C28 June 1993	13.5 °C	961 mm	18	3
1992	37.1 °C20 January 1992	-0.8 °C26 August 1992	13.0 °C	989 mm	9	2
1991	39.1 °C3 January 1991	0.1 °C18 August 1991	13.4 °C	951 mm	18	0
1990	36.2 °C24 January 1990	0.0 °C27 August 1990	13.8 °C	884 mm	21	0
1989	35.5 °C18 February 1989	-1.2 °C28 June 1989	13.4 °C	938 mm	22	4
1988	37.7 °C12 January 1988	1.3 °C14 September 1988	14.1 °C	839 mm	23	0
1987	38.2 °C2 February 1987	0.6 °C17 June 1987	12.9 °C	816 mm	16	0
1986	36.9 °C8 February 1986	-1.9 °C10 August 1986	12.7 °C	936 mm	14	4
1985	40.2 °C14 January 1985	-0.7 °C24 July 1985	13.2 °C	964 mm	14	2
1984	32.1 °C27 February 1984	-2.0 °C15 July 1984	12.8 °C	820 mm	8	2
1983	40.4 °C1 February 1983	-1.3 °C24 July 1983	13.3 °C	856 mm	24	3
1982	43.2 °C24 January 1982	-3.2 °C21 July 1982	13.4 °C	560 mm	35	10
1981	41.2 °C26 January 1981	-1.6 °C20 May 1981	13.8 °C	852 mm	25	2
1980	38.3 °C20 February 1980	-0.4 °C24 July 1980	13.7 °C	842 mm	24	1
1979	39.4 °C2 February 1979	0.3 °C25 July 1979	13.4 °C	761 mm	32	0
1978	36.3 °C11 March 1978	0.1 °C27 June 1978	13.1 °C	995 mm	14	0
1977	38.1 °C17 February 1977	-0.6 °C20 July 1977	13.1 °C	726 mm	25	3
1976	36.7 °C4 January 1976	-1.9 °C28 July 1976	13.0 °C	771 mm	18	3
1975	36.9 °C8 February 1975	0.2 °C3 July 1975	13.4 °C	999 mm	16	0
1974	34.2 °C28 January 1974	-1.5 °C6 August 1974	13.2 °C	1,033 mm	17	1
1973	36.6 °C20 January 1973	-0.4 °C5 July 1973	13.2 °C	1,119 mm	14	2
1972	35.7 °C20 December 1972	-0.2 °C22 June 1972	13.3 °C	617 mm	15	1
1971	33.7 °C26 January 1971	-0.8 °C16 August 1971	13.2 °C	951 mm	13	2
1970	38.6 °C9 February 1970	-0.2 °C26 September 1970	13.0 °C	982 mm	13	1
1969	36.3 °C8 January 1969	-1.4 °C16 June 1969	13.1 °C	887 mm	17	2
1968	38.0 °C25 February 1968	-0.5 °C18 June 1968	13.5 °C	907 mm	23	1
1967	37.0 °C6 February 1967	-0.2 °C5 August 1967	13.3 °C	535 mm	17	1
1966	37.8 °C26 January 1966	0.7 °C20 July 1966	13.2 °C	902 mm	22	0
1965	37.9 °C17 January 1965	-0.2 °C26 June 1965	13.4 °C	652 mm	25	1
1964	36.3 °C4 February 1964	1.8 °C10 June 1964	13.0 °C	1,011 mm	13	0
1963	33.6 °C28 February 1963	-0.9 °C8 August 1963	13.5 °C	917 mm	19	3
1962	36.1 °C16 January 1962	-0.2 °C12 July 1962	13.6 °C	733 mm	17	2
1961	39.5 °C28 January 1961	0.7 °C21 July 1961	14.4 °C	612 mm	30	0
1960	37.3 °C16 January 1960	-0.4 °C30 June 1960	13.2 °C	1,011 mm	22	2
1959	39.0 °C19 January 1959	-0.6 °C10 July 1959	13.6 °C	779 mm	23	1
1958	34.1 °C9 January 1958	-1.1 °C11 July 1958	12.9 °C	862 mm	9	2
1957	36.6 °C30 January 1957	-1.7 °C3 July 1957	13.2 °C	707 mm	18	4
1956	35.0 °C22 February 1956	-0.6 °C2 August 1956	13.1 °C	958 mm	9	6
1955	38.9 °C2 January 1955	-0.2 °C18 September 1955	13.3 °C	764 mm	20	1
1954	36.2 °C27 January 1954	-1.0 °C10 July 1954	13.1 °C	749 mm	17	4
1953	36.3 °C9 March 1953	-0.2 °C12 July 1953	13.0 °C	709 mm	17	2
1952	39.3 °C23 January 1952	0.1 °C24 July 1952	12.7 °C	901 mm	17	0
1951	39.8 °C13 February 1951	1.1 °C13 August 1951	13.6 °C	694 mm	29	0
1950	36.7 °C13 January 1950	-0.5 °C13 June 1950	13.6 °C	518 mm	19	4
1949	34.5 °C29 January 1949	0.2 °C17 September 1949	12.3 °C	850 mm	7	0
1948	37.9 °C27 January 1948	-0.8 °C17 June 1948	12.7 °C	661 mm	20	4
1947	36.5 °C26 January 1947	-1.5 °C26 June 1947	13.4 °C	708 mm	22	1
1946	37.5 °C7 February 1946	-0.7 °C19 August 1946	12.4 °C	758 mm	11	2
1945	37.0 °C8 January 1945	-1.3 °C23 July 1945	12.3 °C	684 mm	8	5
1944	42.1 °C22 January 1944	-1.6 °C29 August 1944	12.9 °C	565 mm	27	6
1943	38.0 °C17 February 1943	-1.2 °C17 July 1943	12.1 °C	506 mm	13	8
1942	36.3 °C4 March 1942	-1.3 °C6 August 1942	12.7 °C	649 mm	12	3
1941	38.3 °C15 January 1941	-1.9 °C8 July 1941	12.9 °C	580 mm	23	4
1940	40.1 °C19 December 1940	-0.8 °C18 August 1940	13.5 °C	293 mm	29	6

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

19.5 °C

+1.1 °C

Hot days (≥ 30 °C)

37 d/yr

+17

Frost days (< 0 °C)

2 d/yr

Annual rainfall

683 mm

-111 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.8 °C	+1.6 °C	39 mm	-13 mm
Feb	27.3 °C	+2.2 °C	24 mm	-22 mm
Mar	25.6 °C	+2.8 °C	52 mm	+7 mm
Apr	21.7 °C	+2.8 °C	22 mm	-36 mm
May	17.3 °C	+2.2 °C	23 mm	-46 mm
Jun	12.6 °C	+0.2 °C	52 mm	-9 mm
Jul	12.7 °C	+1.0 °C	70 mm	+1 mm
Aug	14.3 °C	+1.3 °C	54 mm	-27 mm
Sep	16.2 °C	+0.9 °C	58 mm	-24 mm
Oct	18.6 °C	+0.7 °C	90 mm	+4 mm
Nov	19.0 °C	-1.4 °C	150 mm	+73 mm
Dec	22.7 °C	-0.2 °C	49 mm	-19 mm

The year's extremes

Hottest day

38.5 °C

27 Jan 2025

Coldest day

-0.9 °C

19 Aug 2025

Wettest day

26.4 mm

26 Oct 2025

Windiest day

40.7 km/h

22 Oct 2025

Strongest gust

94.7 km/h

22 Oct 2025

Hottest feels-like

38.7 °C

2 Feb 2025

Coldest feels-like

-3.6 °C

19 Aug 2025

Sunniest day

14.6 h

28 Dec 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Boronia?

Boronia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 13.5 °C and it receives 794 mm of precipitation per year.

What is the hottest day ever recorded in Boronia?

The hottest day measured in Boronia between 1940 and 2025 was 7 February 2009, reaching 45.3 °C.

What is the coldest day in Boronia?

The coldest day measured in Boronia between 1940 and 2025 was 21 July 1982, at -3.2 °C.

Does it snow in Boronia?

Almost never: Boronia sees virtually no snow, with about 2 frost days per year.

Has the climate of Boronia warmed?

Yes: Boronia warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Boronia?

The wettest day measured in Boronia between 1940 and 2025 was 22 April 1960, with 83 mm of rain in 24 hours.

What was the windiest day in Boronia?

The windiest day measured in Boronia between 1940 and 2025 was 2 April 2008, with winds reaching 45.4 km/h.

What is the warmest month in Boronia?

The warmest month in Boronia is January (19.0 °C on average); the coldest is July (8.1 °C).

How much does it rain in Boronia?

Boronia receives on average 794 mm of precipitation per year, spread over about 129 rainy days.

Is it sunny in Boronia?

Boronia gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

What is the biggest single-day snowfall in Boronia?

The heaviest 24-hour snowfall measured in Boronia between 1940 and 2025 was 29 July 1998, with 0.9 cm.

Are there tropical nights in Boronia?

Yes: Boronia has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Boronia?

In Boronia, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 25 January 2019, and the lowest was -6.4 °C on 21 July 1982.

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