El Bolsón climate — normals and trends
El Bolsón (Argentina) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.1 °C and it receives 1,415 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 February (12.6 °C on average) and the coldest is July (-0.1 °C). Rainfall peaks in June.
El Bolsón averages 132 frost days, 1 hot days (≥ 30 °C) and 159 rainy days per year.
El Bolsón has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 159 to 105 per year over the period.
The hottest day of the period reached 33.1 °C (on 15 February 2019) and the coldest -20.8 °C (on 6 July 1960).
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
El BolsónRio Negro
- coords
- -41.96°, -71.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.1°C
Average daily high
10.9°C
Average daily low
1.7°C
Annual rainfall
1,415mm
Sunshine / day
9.4h
Mean relative humidity
78%
Average peak wind
9.2km/h
Seasonal range
12.7°C
Frost days (< 0 °C)
132 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
159 d/yr
Annual snowfall
349.3 cm
Average feels-like high
8.8 °C
Average feels-like low
-1.1 °C
Average peak gust
49.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.56 · 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
33.1 °C
15 February 2019
Coldest day
-20.8 °C
6 July 1960
Wettest day
108 mm
1 June 1977
Windiest day
25.6 km/h
24 December 2000
Strongest gust
144.7 km/h
13 August 1959
Hottest feels-like
33.9 °C
10 January 2013
Coldest feels-like
-25.4 °C
6 July 1960
Snowiest day
56.7 cm
11 October 2000
Sunniest day
14.8 h
9 December 2025
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 | 22.0 °C | +3.6 °C | 10 mm | -50 mm |
| Feb | 19.1 °C | +0.3 °C | 22 mm | -27 mm |
| Mar | 17.3 °C | +1.2 °C | 62 mm | -5 mm |
| Apr | 12.2 °C | +0.7 °C | 128 mm | +16 mm |
| May | 6.7 °C | -0.4 °C | 220 mm | +45 mm |
| Jun | 4.6 °C | +1.0 °C | 143 mm | -63 mm |
| Jul | 5.3 °C | +2.0 °C | 107 mm | -89 mm |
| Aug | 8.1 °C | +3.3 °C | 171 mm | -2 mm |
| Sep | 10.1 °C | +3.0 °C | 124 mm | +9 mm |
| Oct | 12.0 °C | +1.9 °C | 128 mm | +26 mm |
| Nov | 17.7 °C | +4.0 °C | 47 mm | -37 mm |
| Dec | 17.0 °C | +0.6 °C | 51 mm | -26 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 El Bolsón?
El Bolsón has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.1 °C and it receives 1,415 mm of precipitation per year.
What is the hottest day ever recorded in El Bolsón?
The hottest day measured in El Bolsón between 1940 and 2025 was 15 February 2019, reaching 33.1 °C.
What is the coldest day in El Bolsón?
The coldest day measured in El Bolsón between 1940 and 2025 was 6 July 1960, at -20.8 °C.
Does it snow in El Bolsón?
Yes. El Bolsón gets on average 349.3 cm of snow per year and has around 132 frost days.
Has the climate of El Bolsón warmed?
Yes: El Bolsón warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in El Bolsón?
The wettest day measured in El Bolsón between 1940 and 2025 was 1 June 1977, with 108 mm of rain in 24 hours.
What was the windiest day in El Bolsón?
The windiest day measured in El Bolsón between 1940 and 2025 was 24 December 2000, with winds reaching 25.6 km/h.
What is the warmest month in El Bolsón?
The warmest month in El Bolsón is February (12.6 °C on average); the coldest is July (-0.1 °C).
How much does it rain in El Bolsón?
El Bolsón receives on average 1,415 mm of precipitation per year, spread over about 159 rainy days.
Is it sunny in El Bolsón?
El Bolsón gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in El Bolsón?
The heaviest 24-hour snowfall measured in El Bolsón between 1940 and 2025 was 11 October 2000, with 56.7 cm.
Are there tropical nights in El Bolsón?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in El Bolsón.
What was the most extreme apparent temperature in El Bolsón?
In El Bolsón, between 1940 and 2025, the highest apparent temperature reached 33.9 °C on 10 January 2013, and the lowest was -25.4 °C on 6 July 1960.
Compare El Bolsón with another city
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Nearby cities
The climate around El Bolsón