Deneysville climate — normals and trends
Deneysville (South Africa) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 780 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 (20.8 °C on average) and the coldest is June (9.4 °C). Rainfall peaks in January.
Deneysville averages 6 frost days, 24 hot days (≥ 30 °C) and 104 rainy days per year.
Deneysville has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.1 °C (on 6 January 2016) and the coldest -4.7 °C (on 26 June 1992).
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
DeneysvilleFree State
- coords
- -26.89°, 28.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
23.2°C
Average daily low
10.8°C
Annual rainfall
780mm
Sunshine / day
10.8h
Mean relative humidity
62%
Average peak wind
18.0km/h
Seasonal range
11.4°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
24 d/yr
Rainy days (≥ 1 mm)
104 d/yr
Annual snowfall
0.2 cm
Average feels-like high
22.1 °C
Average feels-like low
8.8 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.37 · 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
39.1 °C
6 January 2016
Coldest day
-4.7 °C
26 June 1992
Wettest day
111 mm
17 December 1995
Windiest day
48.2 km/h
23 September 1941
Strongest gust
88.9 km/h
23 October 1995
Hottest feels-like
38.0 °C
6 January 2016
Coldest feels-like
-8.9 °C
26 June 1992
Snowiest day
7.8 cm
7 July 1996
Sunniest day
13.7 h
9 December 1940
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 | 27.8 °C | +1.3 °C | 162 mm | +27 mm |
| Feb | 26.5 °C | +0.6 °C | 248 mm | +142 mm |
| Mar | 24.9 °C | 0.0 °C | 133 mm | +46 mm |
| Apr | 21.3 °C | -1.2 °C | 173 mm | +118 mm |
| May | 20.6 °C | +0.4 °C | 11 mm | -9 mm |
| Jun | 18.2 °C | +0.8 °C | 7 mm | -2 mm |
| Jul | 18.4 °C | +0.7 °C | 10 mm | +5 mm |
| Aug | 23.3 °C | +2.6 °C | 20 mm | +8 mm |
| Sep | 25.4 °C | +0.9 °C | 54 mm | +29 mm |
| Oct | 25.8 °C | 0.0 °C | 76 mm | +0 mm |
| Nov | 23.5 °C | -2.4 °C | 206 mm | +89 mm |
| Dec | 25.6 °C | -0.8 °C | 134 mm | +0 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 Deneysville?
Deneysville has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 780 mm of precipitation per year.
What is the hottest day ever recorded in Deneysville?
The hottest day measured in Deneysville between 1940 and 2025 was 6 January 2016, reaching 39.1 °C.
What is the coldest day in Deneysville?
The coldest day measured in Deneysville between 1940 and 2025 was 26 June 1992, at -4.7 °C.
Does it snow in Deneysville?
Almost never: Deneysville sees virtually no snow, with about 6 frost days per year.
Has the climate of Deneysville warmed?
Yes: Deneysville warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Deneysville?
The wettest day measured in Deneysville between 1940 and 2025 was 17 December 1995, with 111 mm of rain in 24 hours.
What was the windiest day in Deneysville?
The windiest day measured in Deneysville between 1940 and 2025 was 23 September 1941, with winds reaching 48.2 km/h.
What is the warmest month in Deneysville?
The warmest month in Deneysville is January (20.8 °C on average); the coldest is June (9.4 °C).
How much does it rain in Deneysville?
Deneysville receives on average 780 mm of precipitation per year, spread over about 104 rainy days.
Is it sunny in Deneysville?
Deneysville gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Deneysville?
The heaviest 24-hour snowfall measured in Deneysville between 1940 and 2025 was 7 July 1996, with 7.8 cm.
Are there tropical nights in Deneysville?
Yes: Deneysville has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Deneysville?
In Deneysville, between 1940 and 2025, the highest apparent temperature reached 38.0 °C on 6 January 2016, and the lowest was -8.9 °C on 26 June 1992.
Compare Deneysville with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Deneysville