Mount Barker climate — normals and trends

Mount Barker (Australia) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 14.8 °C and it receives 459 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 (20.7 °C on average) and the coldest is July (9.3 °C). Rainfall peaks in July.

Mount Barker averages 0 frost days, 35 hot days (≥ 30 °C) and 88 rainy days per year.

Mount Barker has warmed by +0.5 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.

The hottest day of the period reached 45.4 °C (on 24 January 2019) and the coldest -1.5 °C (on 16 August 1944).

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

Mount BarkerSouth Australia

coords
-35.07°, 138.87°
period
19402025 · 86 yrs
CsbWarm-summer MediterraneanWarmest monthJanuaryColdest monthJulyWettest monthJulyDriest monthMarch

Mean daily temperature

14.8°C

Average daily high

19.8°C

Average daily low

10.2°C

Annual rainfall

459mm

Sunshine / day

10.6h

Mean relative humidity

67%

Average peak wind

19.1km/h

Seasonal range

11.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

35 d/yr

Rainy days (≥ 1 mm)

88 d/yr

Annual snowfall

0.0 cm

Average feels-like high

18.0 °C

Average feels-like low

7.8 °C

Average peak gust

42.1 km/h

Tropical nights (≥ 20 °C)

9 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.5 °C

since 1940

+0.1 °C per decade · r² = 0.12 · p = 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

45.4 °C

24 January 2019

Coldest day

-1.5 °C

16 August 1944

Wettest day

68 mm

2 January 1963

Windiest day

50.1 km/h

1 September 1973

Strongest gust

107.6 km/h

9 May 2016

Hottest feels-like

43.9 °C

24 January 2019

Coldest feels-like

-4.7 °C

5 August 2020

Snowiest day

0.5 cm

2 July 1968

Sunniest day

14.1 h

16 December 2014

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202541.2 °C12 February 20251.9 °C31 July 202515.2 °C409 mm480
202439.2 °C23 January 20240.7 °C17 September 202415.2 °C337 mm400
202339.2 °C10 November 20232.0 °C17 July 202314.6 °C468 mm230
202239.3 °C27 December 20221.4 °C10 July 202214.5 °C660 mm290
202141.0 °C24 January 20210.9 °C27 August 202114.4 °C437 mm280
202041.1 °C30 January 2020-0.8 °C5 August 202014.5 °C439 mm301
201945.4 °C24 January 20191.0 °C23 June 201915.3 °C328 mm550
201840.6 °C19 January 20181.4 °C27 June 201815.3 °C339 mm470
201739.4 °C8 February 20171.6 °C4 June 201715.1 °C434 mm450
201638.0 °C25 December 20162.1 °C25 August 201614.8 °C676 mm330
201541.0 °C2 January 20150.7 °C20 July 201515.1 °C346 mm480
201442.2 °C2 February 20140.6 °C4 August 201415.5 °C378 mm370
201342.2 °C4 January 20133.2 °C8 August 201315.6 °C506 mm410
201239.0 °C1 January 20121.2 °C1 August 201214.9 °C368 mm390
201140.2 °C30 January 2011-0.9 °C22 July 201114.9 °C425 mm301
201040.4 °C10 January 20101.5 °C5 July 201014.8 °C556 mm320
200943.1 °C28 January 20092.3 °C7 July 200915.6 °C449 mm490
200839.9 °C10 January 2008-0.2 °C28 July 200814.9 °C359 mm381
200740.2 °C31 December 2007-0.3 °C16 June 200715.6 °C420 mm461
200641.2 °C21 January 2006-1.0 °C15 June 200614.8 °C294 mm431
200539.9 °C30 December 20051.7 °C18 July 200515.0 °C521 mm290
200442.1 °C14 February 20042.0 °C15 August 200414.8 °C432 mm370
200341.8 °C25 January 20031.3 °C19 August 200314.5 °C459 mm340
200238.7 °C21 December 20021.4 °C11 September 200214.7 °C375 mm290
200142.0 °C13 January 20011.8 °C1 July 200114.6 °C443 mm370
200039.9 °C2 February 20001.8 °C13 June 200015.2 °C507 mm430
199939.5 °C10 January 19990.1 °C2 August 199914.8 °C439 mm370
199839.1 °C11 December 19981.2 °C13 July 199814.4 °C443 mm350
199739.1 °C19 February 19970.5 °C5 July 199714.5 °C469 mm350
199641.2 °C14 January 19961.5 °C27 September 199614.2 °C588 mm280
199537.4 °C24 February 19952.0 °C9 August 199514.5 °C480 mm300
199441.2 °C25 January 19940.1 °C10 August 199414.9 °C323 mm420
199340.1 °C3 February 19932.5 °C26 June 199315.2 °C414 mm330
199236.4 °C19 January 19921.6 °C24 August 199214.2 °C804 mm160
199140.1 °C2 January 19913.2 °C23 July 199115.0 °C509 mm310
199037.4 °C23 January 19902.7 °C19 June 199015.2 °C435 mm330
198937.9 °C1 March 19891.7 °C17 July 198915.1 °C461 mm400
198838.3 °C7 January 19882.9 °C24 August 198815.3 °C494 mm370
198738.1 °C14 December 19871.9 °C20 July 198714.6 °C477 mm250
198640.3 °C6 March 19861.3 °C26 July 198614.3 °C489 mm280
198539.0 °C13 January 19851.9 °C10 August 198514.7 °C445 mm270
198435.8 °C6 March 19842.1 °C20 July 198414.5 °C420 mm280
198340.6 °C7 February 19830.9 °C27 June 198314.8 °C588 mm330
198242.3 °C23 January 19820.8 °C20 July 198215.3 °C290 mm440
198140.8 °C15 February 19811.9 °C29 August 198115.2 °C574 mm350
198040.8 °C20 February 19802.2 °C24 July 198015.3 °C424 mm310
197939.1 °C4 January 19791.8 °C1 September 197914.9 °C627 mm360
197837.1 °C10 March 19780.2 °C9 July 197814.4 °C507 mm230
197738.6 °C9 January 19772.1 °C30 July 197714.8 °C418 mm370
197638.7 °C30 December 19762.4 °C20 July 197614.4 °C354 mm310
197539.4 °C11 December 19751.7 °C22 June 197514.6 °C485 mm340
197434.9 °C25 January 19742.2 °C15 June 197414.3 °C751 mm260
197340.0 °C2 January 19731.2 °C18 June 197314.8 °C656 mm300
197239.6 °C21 December 19721.5 °C22 June 197214.7 °C507 mm320
197138.5 °C17 February 19712.5 °C4 September 197114.6 °C619 mm350
197040.4 °C8 February 19702.9 °C7 August 197014.5 °C413 mm350
196939.1 °C21 January 19691.5 °C6 June 196914.4 °C403 mm300
196841.4 °C31 January 19681.0 °C16 August 196814.7 °C753 mm380
196739.5 °C6 February 19671.7 °C8 August 196715.0 °C265 mm300
196637.2 °C26 January 19661.0 °C16 July 196614.6 °C559 mm410
196539.5 °C21 February 19651.3 °C18 July 196515.3 °C415 mm400
196437.6 °C30 January 1964-0.4 °C11 June 196414.3 °C644 mm241
196337.0 °C12 February 19632.0 °C6 August 196315.0 °C505 mm310
196240.1 °C30 November 19621.6 °C22 August 196215.0 °C548 mm350
196138.9 °C25 January 19612.0 °C21 July 196115.5 °C390 mm460
196041.0 °C2 January 19600.7 °C7 August 196014.4 °C497 mm430
195939.7 °C17 January 19592.3 °C4 July 195915.3 °C275 mm450
195836.6 °C9 January 1958-0.7 °C10 July 195814.5 °C388 mm251
195738.7 °C18 December 19572.7 °C22 July 195715.1 °C327 mm300
195636.8 °C8 January 19563.3 °C23 June 195614.6 °C659 mm200
195541.2 °C2 January 19552.4 °C1 July 195515.0 °C534 mm250
195436.5 °C15 January 19542.1 °C15 August 195414.8 °C353 mm310
195338.5 °C19 December 19532.4 °C2 July 195314.9 °C453 mm420
195237.4 °C23 January 19520.8 °C14 July 195214.1 °C391 mm250
195139.3 °C31 January 19511.9 °C1 July 195115.2 °C397 mm490
195038.9 °C7 December 19501.5 °C24 July 195015.4 °C258 mm440
194937.2 °C27 December 19492.6 °C24 August 194913.9 °C437 mm140
194841.6 °C22 January 19482.0 °C14 July 194814.2 °C510 mm210
194739.3 °C20 January 19471.6 °C24 July 194714.5 °C636 mm410
194638.0 °C28 January 19461.4 °C19 August 194614.1 °C444 mm250
194539.8 °C8 January 19451.0 °C16 July 194514.0 °C468 mm290
194441.1 °C6 February 1944-1.5 °C16 August 194414.4 °C388 mm512
194338.7 °C16 February 19430.3 °C21 August 194313.8 °C383 mm360
194240.1 °C3 January 19420.6 °C30 July 194214.2 °C369 mm280
194138.2 °C14 January 19410.9 °C8 August 194114.4 °C304 mm420
194040.8 °C14 February 19401.9 °C10 September 194015.1 °C242 mm440

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?

Across the whole year

Average daily high
20.6 °C
+0.8 °C
Hot days (≥ 30 °C)
48 d/yr
+13
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
409 mm
-51 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan28.4 °C+1.3 °C5 mm-15 mm
Feb28.9 °C+2.1 °C3 mm-19 mm
Mar27.8 °C+3.4 °C9 mm-10 mm
Apr22.7 °C+2.3 °C12 mm-20 mm
May18.2 °C+1.8 °C18 mm-28 mm
Jun13.8 °C+0.2 °C53 mm+2 mm
Jul12.9 °C+0.1 °C86 mm+25 mm
Aug14.1 °C+0.3 °C57 mm-4 mm
Sep16.5 °C+0.3 °C40 mm-11 mm
Oct19.6 °C+0.4 °C60 mm+20 mm
Nov19.5 °C-2.9 °C55 mm+25 mm
Dec25.6 °C+0.7 °C10 mm-17 mm

The year's extremes

Hottest day
41.2 °C
12 Feb 2025
Coldest day
1.9 °C
31 Jul 2025
Wettest day
27.0 mm
25 Jul 2025
Windiest day
40.1 km/h
26 May 2025
Strongest gust
94.0 km/h
26 May 2025
Hottest feels-like
39.9 °C
12 Feb 2025
Coldest feels-like
-1.0 °C
19 Aug 2025
Sunniest day
14.1 h
8 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 Mount Barker?

Mount Barker has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 14.8 °C and it receives 459 mm of precipitation per year.

What is the hottest day ever recorded in Mount Barker?

The hottest day measured in Mount Barker between 1940 and 2025 was 24 January 2019, reaching 45.4 °C.

What is the coldest day in Mount Barker?

The coldest day measured in Mount Barker between 1940 and 2025 was 16 August 1944, at -1.5 °C.

Does it snow in Mount Barker?

Almost never: Mount Barker sees virtually no snow, with about 0 frost days per year.

Has the climate of Mount Barker warmed?

Yes: Mount Barker warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Mount Barker?

The wettest day measured in Mount Barker between 1940 and 2025 was 2 January 1963, with 68 mm of rain in 24 hours.

What was the windiest day in Mount Barker?

The windiest day measured in Mount Barker between 1940 and 2025 was 1 September 1973, with winds reaching 50.1 km/h.

What is the warmest month in Mount Barker?

The warmest month in Mount Barker is January (20.7 °C on average); the coldest is July (9.3 °C).

How much does it rain in Mount Barker?

Mount Barker receives on average 459 mm of precipitation per year, spread over about 88 rainy days.

Is it sunny in Mount Barker?

Mount Barker gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

What is the biggest single-day snowfall in Mount Barker?

The heaviest 24-hour snowfall measured in Mount Barker between 1940 and 2025 was 2 July 1968, with 0.5 cm.

Are there tropical nights in Mount Barker?

Yes: Mount Barker has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Mount Barker?

In Mount Barker, between 1940 and 2025, the highest apparent temperature reached 43.9 °C on 24 January 2019, and the lowest was -4.7 °C on 5 August 2020.

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