Casilda climate — normals and trends
Casilda (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.5 °C and it receives 975 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 (24.5 °C on average) and the coldest is July (10.4 °C). Rainfall peaks in March.
Casilda averages 6 frost days, 56 hot days (≥ 30 °C) and 88 rainy days per year.
No statistically significant temperature trend emerges for Casilda between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 40.7 °C (on 11 January 1957) and the coldest -7.3 °C (on 1 July 2025).
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
CasildaSanta Fe
- coords
- -33.04°, -61.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.5°C
Average daily high
23.1°C
Average daily low
12.6°C
Annual rainfall
975mm
Sunshine / day
9.7h
Mean relative humidity
71%
Average peak wind
16.9km/h
Seasonal range
14.1°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
56 d/yr
Rainy days (≥ 1 mm)
88 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.2 °C
Average feels-like low
11.2 °C
Average peak gust
34.1 km/h
Tropical nights (≥ 20 °C)
36 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
40.7 °C
11 January 1957
Coldest day
-7.3 °C
1 July 2025
Wettest day
142 mm
12 December 1997
Windiest day
44.6 km/h
16 May 2000
Strongest gust
99.7 km/h
17 October 1982
Hottest feels-like
44.3 °C
27 January 1990
Coldest feels-like
-11.4 °C
1 July 2025
Snowiest day
1.1 cm
18 July 2010
Sunniest day
14.0 h
5 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 | 31.6 °C | +1.5 °C | 43 mm | -66 mm |
| Feb | 30.6 °C | +1.8 °C | 163 mm | +52 mm |
| Mar | 26.9 °C | +0.1 °C | 158 mm | +33 mm |
| Apr | 22.3 °C | -0.7 °C | 61 mm | -29 mm |
| May | 21.1 °C | +1.8 °C | 85 mm | +28 mm |
| Jun | 15.5 °C | -0.5 °C | 5 mm | -27 mm |
| Jul | 16.8 °C | +1.0 °C | 36 mm | -3 mm |
| Aug | 18.6 °C | +0.7 °C | 122 mm | +77 mm |
| Sep | 21.4 °C | +1.1 °C | 61 mm | -1 mm |
| Oct | 24.9 °C | +1.7 °C | 80 mm | -23 mm |
| Nov | 26.7 °C | +0.2 °C | 125 mm | +21 mm |
| Dec | 30.9 °C | +1.8 °C | 50 mm | -46 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 Casilda?
Casilda has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.5 °C and it receives 975 mm of precipitation per year.
What is the hottest day ever recorded in Casilda?
The hottest day measured in Casilda between 1940 and 2025 was 11 January 1957, reaching 40.7 °C.
What is the coldest day in Casilda?
The coldest day measured in Casilda between 1940 and 2025 was 1 July 2025, at -7.3 °C.
Does it snow in Casilda?
Almost never: Casilda sees virtually no snow, with about 6 frost days per year.
Has the climate of Casilda warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Casilda.
What is the wettest day in Casilda?
The wettest day measured in Casilda between 1940 and 2025 was 12 December 1997, with 142 mm of rain in 24 hours.
What was the windiest day in Casilda?
The windiest day measured in Casilda between 1940 and 2025 was 16 May 2000, with winds reaching 44.6 km/h.
What is the warmest month in Casilda?
The warmest month in Casilda is January (24.5 °C on average); the coldest is July (10.4 °C).
How much does it rain in Casilda?
Casilda receives on average 975 mm of precipitation per year, spread over about 88 rainy days.
Is it sunny in Casilda?
Casilda gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Casilda?
The heaviest 24-hour snowfall measured in Casilda between 1940 and 2025 was 18 July 2010, with 1.1 cm.
Are there tropical nights in Casilda?
Yes: Casilda has on average 36 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Casilda?
In Casilda, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 27 January 1990, and the lowest was -11.4 °C on 1 July 2025.
Compare Casilda with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Casilda