Horsham climate — normals and trends
Horsham (Australia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 429 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 (21.4 °C on average) and the coldest is July (8.3 °C). Rainfall peaks in August.
Horsham averages 3 frost days, 40 hot days (≥ 30 °C) and 75 rainy days per year.
Horsham has warmed by +0.4 °C between 1940 and 2025, or +0.04 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 4 per year over the period.
The hottest day of the period reached 45.7 °C (on 20 December 2019) and the coldest -4.0 °C (on 16 July 1998).
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
HorshamVictoria
- coords
- -36.71°, 142.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.5°C
Average daily high
20.2°C
Average daily low
9.2°C
Annual rainfall
429mm
Sunshine / day
9.8h
Mean relative humidity
66%
Average peak wind
20.2km/h
Seasonal range
13.1°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
0.0 cm
Average feels-like high
17.9 °C
Average feels-like low
6.6 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.4 °C
since 1940
0.0 °C per decade · r² = 0.06 · p = 0.027
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
45.7 °C
20 December 2019
Coldest day
-4.0 °C
16 July 1998
Wettest day
78 mm
18 February 1946
Windiest day
54.0 km/h
22 October 2025
Strongest gust
105.1 km/h
9 September 1980
Hottest feels-like
43.8 °C
24 January 1982
Coldest feels-like
-7.7 °C
16 July 1998
Snowiest day
0.1 cm
26 August 1941
Sunniest day
14.5 h
27 December 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.5 °C | +1.9 °C | 13 mm | -13 mm |
| Feb | 30.3 °C | +2.1 °C | 5 mm | -15 mm |
| Mar | 29.0 °C | +3.8 °C | 12 mm | -10 mm |
| Apr | 23.9 °C | +3.4 °C | 21 mm | -8 mm |
| May | 18.6 °C | +2.3 °C | 5 mm | -35 mm |
| Jun | 13.1 °C | -0.2 °C | 35 mm | -6 mm |
| Jul | 13.1 °C | +0.5 °C | 73 mm | +26 mm |
| Aug | 14.1 °C | +0.4 °C | 49 mm | +0 mm |
| Sep | 16.7 °C | +0.8 °C | 25 mm | -23 mm |
| Oct | 19.4 °C | +0.2 °C | 66 mm | +23 mm |
| Nov | 20.6 °C | -2.3 °C | 54 mm | +18 mm |
| Dec | 26.7 °C | +0.6 °C | 21 mm | -10 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 Horsham?
Horsham has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 429 mm of precipitation per year.
What is the hottest day ever recorded in Horsham?
The hottest day measured in Horsham between 1940 and 2025 was 20 December 2019, reaching 45.7 °C.
What is the coldest day in Horsham?
The coldest day measured in Horsham between 1940 and 2025 was 16 July 1998, at -4.0 °C.
Does it snow in Horsham?
Almost never: Horsham sees virtually no snow, with about 3 frost days per year.
Has the climate of Horsham warmed?
Yes: Horsham warmed by +0.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Horsham?
The wettest day measured in Horsham between 1940 and 2025 was 18 February 1946, with 78 mm of rain in 24 hours.
What was the windiest day in Horsham?
The windiest day measured in Horsham between 1940 and 2025 was 22 October 2025, with winds reaching 54.0 km/h.
What is the warmest month in Horsham?
The warmest month in Horsham is January (21.4 °C on average); the coldest is July (8.3 °C).
How much does it rain in Horsham?
Horsham receives on average 429 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Horsham?
Horsham 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 Horsham?
The heaviest 24-hour snowfall measured in Horsham between 1940 and 2025 was 26 August 1941, with 0.1 cm.
Are there tropical nights in Horsham?
Yes: Horsham has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Horsham?
In Horsham, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 24 January 1982, and the lowest was -7.7 °C on 16 July 1998.
Compare Horsham with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Horsham