Portomaggiore climate — normals and trends
Portomaggiore (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 762 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 (25.4 °C on average) and the coldest is January (3.5 °C). Rainfall peaks in November.
Portomaggiore averages 37 frost days, 51 hot days (≥ 30 °C) and 108 rainy days per year.
Portomaggiore has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 51 to 23 per year over the period.
The hottest day of the period reached 41.2 °C (on 27 June 2019) and the coldest -23.1 °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
PortomaggioreEmilia-Romagna
- coords
- 44.70°, 11.81°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.5°C
Average daily high
19.2°C
Average daily low
10.3°C
Annual rainfall
762mm
Sunshine / day
9.6h
Mean relative humidity
74%
Average peak wind
13.0km/h
Seasonal range
21.9°C
Frost days (< 0 °C)
37 d/yr
Hot days (≥ 30 °C)
51 d/yr
Rainy days (≥ 1 mm)
108 d/yr
Annual snowfall
11.1 cm
Average feels-like high
18.5 °C
Average feels-like low
9.1 °C
Average peak gust
27.4 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
41.2 °C
27 June 2019
Coldest day
-23.1 °C
15 February 1940
Wettest day
124 mm
30 July 2014
Windiest day
45.8 km/h
17 April 1991
Strongest gust
87.5 km/h
17 April 1991
Hottest feels-like
44.7 °C
27 June 2019
Coldest feels-like
-28.9 °C
15 February 1940
Snowiest day
16.0 cm
1 February 1942
Sunniest day
14.9 h
29 June 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 | 8.5 °C | +1.2 °C | 39 mm | -9 mm |
| Feb | 10.2 °C | +0.3 °C | 77 mm | +26 mm |
| Mar | 15.5 °C | +1.2 °C | 109 mm | +51 mm |
| Apr | 19.8 °C | +1.4 °C | 63 mm | -6 mm |
| May | 23.6 °C | +0.2 °C | 93 mm | +21 mm |
| Jun | 31.9 °C | +3.9 °C | 47 mm | -20 mm |
| Jul | 30.9 °C | 0.0 °C | 117 mm | +55 mm |
| Aug | 30.3 °C | -0.1 °C | 111 mm | +45 mm |
| Sep | 26.6 °C | +0.6 °C | 81 mm | +14 mm |
| Oct | 19.6 °C | -0.3 °C | 76 mm | +5 mm |
| Nov | 13.2 °C | -0.1 °C | 61 mm | -14 mm |
| Dec | 9.7 °C | +1.3 °C | 44 mm | -12 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 Portomaggiore?
Portomaggiore has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 762 mm of precipitation per year.
What is the hottest day ever recorded in Portomaggiore?
The hottest day measured in Portomaggiore between 1940 and 2025 was 27 June 2019, reaching 41.2 °C.
What is the coldest day in Portomaggiore?
The coldest day measured in Portomaggiore between 1940 and 2025 was 15 February 1940, at -23.1 °C.
Does it snow in Portomaggiore?
Yes. Portomaggiore gets on average 11.1 cm of snow per year and has around 37 frost days.
Has the climate of Portomaggiore warmed?
Yes: Portomaggiore warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Portomaggiore?
The wettest day measured in Portomaggiore between 1940 and 2025 was 30 July 2014, with 124 mm of rain in 24 hours.
What was the windiest day in Portomaggiore?
The windiest day measured in Portomaggiore between 1940 and 2025 was 17 April 1991, with winds reaching 45.8 km/h.
What is the warmest month in Portomaggiore?
The warmest month in Portomaggiore is July (25.4 °C on average); the coldest is January (3.5 °C).
How much does it rain in Portomaggiore?
Portomaggiore receives on average 762 mm of precipitation per year, spread over about 108 rainy days.
Is it sunny in Portomaggiore?
Portomaggiore 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 Portomaggiore?
The heaviest 24-hour snowfall measured in Portomaggiore between 1940 and 2025 was 1 February 1942, with 16.0 cm.
Are there tropical nights in Portomaggiore?
Yes: Portomaggiore has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Portomaggiore?
In Portomaggiore, between 1940 and 2025, the highest apparent temperature reached 44.7 °C on 27 June 2019, and the lowest was -28.9 °C on 15 February 1940.
Compare Portomaggiore with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Portomaggiore