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
- 1940–2025 · 86 yrs
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
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
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
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 28.4 °C | +1.3 °C | 5 mm | -15 mm |
| Feb | 28.9 °C | +2.1 °C | 3 mm | -19 mm |
| Mar | 27.8 °C | +3.4 °C | 9 mm | -10 mm |
| Apr | 22.7 °C | +2.3 °C | 12 mm | -20 mm |
| May | 18.2 °C | +1.8 °C | 18 mm | -28 mm |
| Jun | 13.8 °C | +0.2 °C | 53 mm | +2 mm |
| Jul | 12.9 °C | +0.1 °C | 86 mm | +25 mm |
| Aug | 14.1 °C | +0.3 °C | 57 mm | -4 mm |
| Sep | 16.5 °C | +0.3 °C | 40 mm | -11 mm |
| Oct | 19.6 °C | +0.4 °C | 60 mm | +20 mm |
| Nov | 19.5 °C | -2.9 °C | 55 mm | +25 mm |
| Dec | 25.6 °C | +0.7 °C | 10 mm | -17 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
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.
Compare Mount Barker with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mount Barker