General Alvear climate — normals and trends
General Alvear (Argentina) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 17.2 °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 (25.8 °C on average) and the coldest is July (8.5 °C). Rainfall peaks in January.
General Alvear averages 9 frost days, 89 hot days (≥ 30 °C) and 73 rainy days per year.
General Alvear has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.8 °C (on 13 January 2022) and the coldest -13.1 °C (on 14 June 1961).
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
General AlvearMendoza
- coords
- -34.98°, -67.70°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.2°C
Average daily high
23.7°C
Average daily low
11.4°C
Annual rainfall
459mm
Sunshine / day
10.5h
Mean relative humidity
55%
Average peak wind
22.5km/h
Seasonal range
17.3°C
Frost days (< 0 °C)
9 d/yr
Hot days (≥ 30 °C)
89 d/yr
Rainy days (≥ 1 mm)
73 d/yr
Annual snowfall
1.6 cm
Average feels-like high
21.6 °C
Average feels-like low
8.7 °C
Average peak gust
39.0 km/h
Tropical nights (≥ 20 °C)
35 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
43.8 °C
13 January 2022
Coldest day
-13.1 °C
14 June 1961
Wettest day
119 mm
30 January 1962
Windiest day
59.6 km/h
24 December 2019
Strongest gust
100.8 km/h
15 December 1951
Hottest feels-like
44.4 °C
30 January 2024
Coldest feels-like
-17.9 °C
14 June 1961
Snowiest day
13.8 cm
7 August 1975
Sunniest day
14.4 h
17 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 | 35.4 °C | +2.9 °C | 64 mm | +9 mm |
| Feb | 35.4 °C | +4.3 °C | 34 mm | -16 mm |
| Mar | 26.4 °C | -1.2 °C | 69 mm | +17 mm |
| Apr | 22.6 °C | -0.3 °C | 6 mm | -32 mm |
| May | 20.4 °C | +2.0 °C | 51 mm | +26 mm |
| Jun | 15.8 °C | +0.8 °C | 3 mm | -14 mm |
| Jul | 16.6 °C | +1.6 °C | 5 mm | -12 mm |
| Aug | 19.0 °C | +1.2 °C | 40 mm | +21 mm |
| Sep | 23.9 °C | +3.2 °C | 18 mm | -18 mm |
| Oct | 28.0 °C | +3.9 °C | 7 mm | -46 mm |
| Nov | 30.2 °C | +2.0 °C | 59 mm | +9 mm |
| Dec | 33.6 °C | +2.1 °C | 16 mm | -31 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 General Alvear?
General Alvear has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 17.2 °C and it receives 459 mm of precipitation per year.
What is the hottest day ever recorded in General Alvear?
The hottest day measured in General Alvear between 1940 and 2025 was 13 January 2022, reaching 43.8 °C.
What is the coldest day in General Alvear?
The coldest day measured in General Alvear between 1940 and 2025 was 14 June 1961, at -13.1 °C.
Does it snow in General Alvear?
Yes. General Alvear gets on average 1.6 cm of snow per year and has around 9 frost days.
Has the climate of General Alvear warmed?
Yes: General Alvear warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in General Alvear?
The wettest day measured in General Alvear between 1940 and 2025 was 30 January 1962, with 119 mm of rain in 24 hours.
What was the windiest day in General Alvear?
The windiest day measured in General Alvear between 1940 and 2025 was 24 December 2019, with winds reaching 59.6 km/h.
What is the warmest month in General Alvear?
The warmest month in General Alvear is January (25.8 °C on average); the coldest is July (8.5 °C).
How much does it rain in General Alvear?
General Alvear receives on average 459 mm of precipitation per year, spread over about 73 rainy days.
Is it sunny in General Alvear?
General Alvear gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
What is the biggest single-day snowfall in General Alvear?
The heaviest 24-hour snowfall measured in General Alvear between 1940 and 2025 was 7 August 1975, with 13.8 cm.
Are there tropical nights in General Alvear?
Yes: General Alvear has on average 35 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in General Alvear?
In General Alvear, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 30 January 2024, and the lowest was -17.9 °C on 14 June 1961.
Compare General Alvear with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around General Alvear