Colorno climate — normals and trends
Colorno (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.6 °C and it receives 875 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 (24.6 °C on average) and the coldest is January (2.5 °C). Rainfall peaks in May.
Colorno averages 44 frost days, 40 hot days (≥ 30 °C) and 109 rainy days per year.
Colorno has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 62 to 26 per year over the period.
The hottest day of the period reached 39.4 °C (on 11 August 2003) and the coldest -20.3 °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
ColornoEmilia-Romagna
- coords
- 44.93°, 10.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.6°C
Average daily high
18.1°C
Average daily low
9.6°C
Annual rainfall
875mm
Sunshine / day
9.4h
Mean relative humidity
74%
Average peak wind
10.9km/h
Seasonal range
22.1°C
Frost days (< 0 °C)
44 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
109 d/yr
Annual snowfall
27.4 cm
Average feels-like high
17.5 °C
Average feels-like low
8.4 °C
Average peak gust
23.7 km/h
Tropical nights (≥ 20 °C)
33 d/yr
Solar radiation
13.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
-20.3 °C
15 February 1940
Wettest day
89 mm
18 August 2022
Windiest day
42.7 km/h
11 March 1982
Strongest gust
81.7 km/h
11 March 1982
Hottest feels-like
43.2 °C
27 June 2019
Coldest feels-like
-25.3 °C
15 February 1940
Snowiest day
28.5 cm
6 February 2015
Sunniest day
15.0 h
12 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 | 7.5 °C | +1.5 °C | 54 mm | -3 mm |
| Feb | 9.3 °C | +0.4 °C | 77 mm | +19 mm |
| Mar | 15.1 °C | +1.3 °C | 110 mm | +43 mm |
| Apr | 19.8 °C | +1.9 °C | 75 mm | -9 mm |
| May | 23.8 °C | +1.2 °C | 102 mm | +13 mm |
| Jun | 32.6 °C | +5.6 °C | 18 mm | -53 mm |
| Jul | 31.1 °C | +1.2 °C | 59 mm | +1 mm |
| Aug | 30.5 °C | +1.1 °C | 139 mm | +66 mm |
| Sep | 25.6 °C | +0.6 °C | 108 mm | +31 mm |
| Oct | 18.8 °C | +0.3 °C | 54 mm | -35 mm |
| Nov | 12.3 °C | +0.7 °C | 78 mm | -10 mm |
| Dec | 9.2 °C | +2.3 °C | 97 mm | +32 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 Colorno?
Colorno has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.6 °C and it receives 875 mm of precipitation per year.
What is the hottest day ever recorded in Colorno?
The hottest day measured in Colorno between 1940 and 2025 was 11 August 2003, reaching 39.4 °C.
What is the coldest day in Colorno?
The coldest day measured in Colorno between 1940 and 2025 was 15 February 1940, at -20.3 °C.
Does it snow in Colorno?
Yes. Colorno gets on average 27.4 cm of snow per year and has around 44 frost days.
Has the climate of Colorno warmed?
Yes: Colorno warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Colorno?
The wettest day measured in Colorno between 1940 and 2025 was 18 August 2022, with 89 mm of rain in 24 hours.
What was the windiest day in Colorno?
The windiest day measured in Colorno between 1940 and 2025 was 11 March 1982, with winds reaching 42.7 km/h.
What is the warmest month in Colorno?
The warmest month in Colorno is July (24.6 °C on average); the coldest is January (2.5 °C).
How much does it rain in Colorno?
Colorno receives on average 875 mm of precipitation per year, spread over about 109 rainy days.
Is it sunny in Colorno?
Colorno 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 Colorno?
The heaviest 24-hour snowfall measured in Colorno between 1940 and 2025 was 6 February 2015, with 28.5 cm.
Are there tropical nights in Colorno?
Yes: Colorno has on average 33 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Colorno?
In Colorno, between 1940 and 2025, the highest apparent temperature reached 43.2 °C on 27 June 2019, and the lowest was -25.3 °C on 15 February 1940.
Compare Colorno with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Colorno