Junín climate — normals and trends
Junín (Argentina) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.6 °C and it receives 926 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 (23.8 °C on average) and the coldest is July (9.5 °C). Rainfall peaks in January.
Junín averages 8 frost days, 46 hot days (≥ 30 °C) and 90 rainy days per year.
No statistically significant temperature trend emerges for Junín 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 29 December 1971) and the coldest -7.2 °C (on 14 June 1967).
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
JunínBuenos Aires
- coords
- -34.59°, -60.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.6°C
Average daily high
22.3°C
Average daily low
11.6°C
Annual rainfall
926mm
Sunshine / day
9.6h
Mean relative humidity
71%
Average peak wind
18.7km/h
Seasonal range
14.3°C
Frost days (< 0 °C)
8 d/yr
Hot days (≥ 30 °C)
46 d/yr
Rainy days (≥ 1 mm)
90 d/yr
Annual snowfall
0.1 cm
Average feels-like high
21.8 °C
Average feels-like low
9.9 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
23 d/yr
Solar radiation
17.3 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
29 December 1971
Coldest day
-7.2 °C
14 June 1967
Wettest day
133 mm
31 January 2004
Windiest day
57.2 km/h
29 May 1984
Strongest gust
109.8 km/h
18 January 1952
Hottest feels-like
42.6 °C
14 February 1960
Coldest feels-like
-11.6 °C
14 June 1967
Snowiest day
3.7 cm
30 August 1993
Sunniest day
14.0 h
3 January 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 | 31.5 °C | +1.9 °C | 41 mm | -66 mm |
| Feb | 30.1 °C | +1.8 °C | 146 mm | +45 mm |
| Mar | 25.8 °C | -0.4 °C | 198 mm | +95 mm |
| Apr | 21.7 °C | -0.8 °C | 70 mm | -11 mm |
| May | 19.9 °C | +1.3 °C | 104 mm | +46 mm |
| Jun | 15.2 °C | -0.1 °C | 2 mm | -36 mm |
| Jul | 15.6 °C | +0.7 °C | 47 mm | +8 mm |
| Aug | 17.7 °C | +0.7 °C | 148 mm | +105 mm |
| Sep | 20.1 °C | +0.8 °C | 94 mm | +28 mm |
| Oct | 23.6 °C | +1.6 °C | 97 mm | -9 mm |
| Nov | 25.0 °C | -0.6 °C | 102 mm | +6 mm |
| Dec | 30.1 °C | +1.6 °C | 51 mm | -37 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 Junín?
Junín has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.6 °C and it receives 926 mm of precipitation per year.
What is the hottest day ever recorded in Junín?
The hottest day measured in Junín between 1940 and 2025 was 29 December 1971, reaching 40.7 °C.
What is the coldest day in Junín?
The coldest day measured in Junín between 1940 and 2025 was 14 June 1967, at -7.2 °C.
Does it snow in Junín?
Almost never: Junín sees virtually no snow, with about 8 frost days per year.
Has the climate of Junín warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Junín.
What is the wettest day in Junín?
The wettest day measured in Junín between 1940 and 2025 was 31 January 2004, with 133 mm of rain in 24 hours.
What was the windiest day in Junín?
The windiest day measured in Junín between 1940 and 2025 was 29 May 1984, with winds reaching 57.2 km/h.
What is the warmest month in Junín?
The warmest month in Junín is January (23.8 °C on average); the coldest is July (9.5 °C).
How much does it rain in Junín?
Junín receives on average 926 mm of precipitation per year, spread over about 90 rainy days.
Is it sunny in Junín?
Junín gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Junín?
The heaviest 24-hour snowfall measured in Junín between 1940 and 2025 was 30 August 1993, with 3.7 cm.
Are there tropical nights in Junín?
Yes: Junín has on average 23 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Junín?
In Junín, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 14 February 1960, and the lowest was -11.6 °C on 14 June 1967.
Compare Junín with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Junín