Robbio climate — normals and trends
Robbio (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.7 °C and it receives 1,118 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 July (23.5 °C on average) and the coldest is January (1.4 °C). Rainfall peaks in May.
Robbio averages 60 frost days, 27 hot days (≥ 30 °C) and 115 rainy days per year.
Robbio has warmed by +3.1 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The number of frost days there went from about 85 to 35 per year over the period.
The hottest day of the period reached 39.4 °C (on 11 August 2003) and the coldest -19.9 °C (on 9 January 1945).
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
RobbioLombardy
- coords
- 45.29°, 8.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.7°C
Average daily high
17.4°C
Average daily low
8.7°C
Annual rainfall
1,118mm
Sunshine / day
9.1h
Mean relative humidity
75%
Average peak wind
10.4km/h
Seasonal range
22.1°C
Frost days (< 0 °C)
60 d/yr
Hot days (≥ 30 °C)
27 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
36.6 cm
Average feels-like high
16.8 °C
Average feels-like low
7.4 °C
Average peak gust
21.4 km/h
Tropical nights (≥ 20 °C)
22 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.72 · 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
39.4 °C
11 August 2003
Coldest day
-19.9 °C
9 January 1945
Wettest day
111 mm
24 August 1987
Windiest day
45.2 km/h
12 March 2006
Strongest gust
81.4 km/h
3 October 2020
Hottest feels-like
42.8 °C
28 June 2019
Coldest feels-like
-24.9 °C
18 January 1941
Snowiest day
28.4 cm
5 January 1945
Sunniest day
15.0 h
1 June 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 | 7.6 °C | +2.2 °C | 82 mm | +22 mm |
| Feb | 9.4 °C | +1.0 °C | 56 mm | -10 mm |
| Mar | 14.9 °C | +1.3 °C | 128 mm | +44 mm |
| Apr | 19.7 °C | +2.0 °C | 147 mm | +40 mm |
| May | 23.2 °C | +1.2 °C | 134 mm | +13 mm |
| Jun | 30.5 °C | +4.5 °C | 31 mm | -70 mm |
| Jul | 29.1 °C | +0.3 °C | 141 mm | +67 mm |
| Aug | 29.2 °C | +1.2 °C | 161 mm | +61 mm |
| Sep | 24.1 °C | +0.1 °C | 114 mm | +14 mm |
| Oct | 18.6 °C | +0.9 °C | 36 mm | -85 mm |
| Nov | 12.1 °C | +1.1 °C | 45 mm | -71 mm |
| Dec | 9.2 °C | +2.8 °C | 95 mm | +27 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 Robbio?
Robbio has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.7 °C and it receives 1,118 mm of precipitation per year.
What is the hottest day ever recorded in Robbio?
The hottest day measured in Robbio between 1940 and 2025 was 11 August 2003, reaching 39.4 °C.
What is the coldest day in Robbio?
The coldest day measured in Robbio between 1940 and 2025 was 9 January 1945, at -19.9 °C.
Does it snow in Robbio?
Yes. Robbio gets on average 36.6 cm of snow per year and has around 60 frost days.
Has the climate of Robbio warmed?
Yes: Robbio warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Robbio?
The wettest day measured in Robbio between 1940 and 2025 was 24 August 1987, with 111 mm of rain in 24 hours.
What was the windiest day in Robbio?
The windiest day measured in Robbio between 1940 and 2025 was 12 March 2006, with winds reaching 45.2 km/h.
What is the warmest month in Robbio?
The warmest month in Robbio is July (23.5 °C on average); the coldest is January (1.4 °C).
How much does it rain in Robbio?
Robbio receives on average 1,118 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Robbio?
Robbio gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Robbio?
The heaviest 24-hour snowfall measured in Robbio between 1940 and 2025 was 5 January 1945, with 28.4 cm.
Are there tropical nights in Robbio?
Yes: Robbio has on average 22 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Robbio?
In Robbio, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 28 June 2019, and the lowest was -24.9 °C on 18 January 1941.
Compare Robbio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Robbio