Piazza climate — normals and trends
Piazza (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 1,058 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 (22.8 °C on average) and the coldest is January (2.4 °C). Rainfall peaks in May.
Piazza averages 43 frost days, 14 hot days (≥ 30 °C) and 125 rainy days per year.
Piazza has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 70 to 16 per year over the period.
The hottest day of the period reached 37.0 °C (on 10 August 2003) and the coldest -18.4 °C (on 15 February 1940).
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
PiazzaLombardy
- coords
- 45.59°, 10.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
16.5°C
Average daily low
9.0°C
Annual rainfall
1,058mm
Sunshine / day
9.5h
Mean relative humidity
75%
Average peak wind
8.2km/h
Seasonal range
20.4°C
Frost days (< 0 °C)
43 d/yr
Hot days (≥ 30 °C)
14 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
25.5 cm
Average feels-like high
15.9 °C
Average feels-like low
7.8 °C
Average peak gust
22.5 km/h
Tropical nights (≥ 20 °C)
21 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
37.0 °C
10 August 2003
Coldest day
-18.4 °C
15 February 1940
Wettest day
89 mm
8 August 1945
Windiest day
29.9 km/h
11 March 1982
Strongest gust
85.3 km/h
22 December 1979
Hottest feels-like
41.5 °C
6 July 1957
Coldest feels-like
-23.5 °C
29 January 1945
Snowiest day
27.2 cm
5 March 2010
Sunniest day
15.0 h
9 July 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 | +2.1 °C | 99 mm | +44 mm |
| Feb | 9.0 °C | +1.2 °C | 39 mm | -20 mm |
| Mar | 14.4 °C | +2.0 °C | 108 mm | +35 mm |
| Apr | 18.5 °C | +2.1 °C | 99 mm | +1 mm |
| May | 21.8 °C | +1.1 °C | 164 mm | +53 mm |
| Jun | 29.7 °C | +5.0 °C | 33 mm | -65 mm |
| Jul | 27.9 °C | +0.7 °C | 184 mm | +95 mm |
| Aug | 27.9 °C | +1.2 °C | 188 mm | +89 mm |
| Sep | 23.6 °C | +0.9 °C | 142 mm | +42 mm |
| Oct | 17.3 °C | +0.4 °C | 63 mm | -44 mm |
| Nov | 11.7 °C | +1.1 °C | 94 mm | -11 mm |
| Dec | 9.3 °C | +2.9 °C | 62 mm | -3 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 Piazza?
Piazza has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 1,058 mm of precipitation per year.
What is the hottest day ever recorded in Piazza?
The hottest day measured in Piazza between 1940 and 2025 was 10 August 2003, reaching 37.0 °C.
What is the coldest day in Piazza?
The coldest day measured in Piazza between 1940 and 2025 was 15 February 1940, at -18.4 °C.
Does it snow in Piazza?
Yes. Piazza gets on average 25.5 cm of snow per year and has around 43 frost days.
Has the climate of Piazza warmed?
Yes: Piazza warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Piazza?
The wettest day measured in Piazza between 1940 and 2025 was 8 August 1945, with 89 mm of rain in 24 hours.
What was the windiest day in Piazza?
The windiest day measured in Piazza between 1940 and 2025 was 11 March 1982, with winds reaching 29.9 km/h.
What is the warmest month in Piazza?
The warmest month in Piazza is July (22.8 °C on average); the coldest is January (2.4 °C).
How much does it rain in Piazza?
Piazza receives on average 1,058 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Piazza?
Piazza gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Piazza?
The heaviest 24-hour snowfall measured in Piazza between 1940 and 2025 was 5 March 2010, with 27.2 cm.
Are there tropical nights in Piazza?
Yes: Piazza has on average 21 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Piazza?
In Piazza, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 6 July 1957, and the lowest was -23.5 °C on 29 January 1945.
Compare Piazza with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Piazza