Spirano climate — normals and trends
Spirano (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 1,081 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 (23.0 °C on average) and the coldest is January (1.8 °C). Rainfall peaks in May.
Spirano averages 57 frost days, 20 hot days (≥ 30 °C) and 121 rainy days per year.
Spirano has warmed by +3.1 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 83 to 31 per year over the period.
The hottest day of the period reached 37.8 °C (on 10 August 2003) and the coldest -20.6 °C (on 11 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
SpiranoLombardy
- coords
- 45.58°, 9.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
17.0°C
Average daily low
8.6°C
Annual rainfall
1,081mm
Sunshine / day
9.4h
Mean relative humidity
75%
Average peak wind
9.0km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
57 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
24.2 cm
Average feels-like high
16.5 °C
Average feels-like low
7.2 °C
Average peak gust
22.0 km/h
Tropical nights (≥ 20 °C)
19 d/yr
Solar radiation
13.5 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
37.8 °C
10 August 2003
Coldest day
-20.6 °C
11 January 1945
Wettest day
100 mm
1 September 2018
Windiest day
37.1 km/h
29 October 2018
Strongest gust
80.6 km/h
11 October 1987
Hottest feels-like
42.6 °C
6 July 1957
Coldest feels-like
-25.6 °C
11 January 1945
Snowiest day
25.2 cm
16 January 1985
Sunniest day
15.0 h
27 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 | 7.8 °C | +2.1 °C | 103 mm | +47 mm |
| Feb | 9.5 °C | +1.1 °C | 46 mm | -13 mm |
| Mar | 15.1 °C | +2.1 °C | 114 mm | +41 mm |
| Apr | 19.6 °C | +2.6 °C | 98 mm | +0 mm |
| May | 23.1 °C | +1.7 °C | 182 mm | +68 mm |
| Jun | 30.9 °C | +5.5 °C | 33 mm | -69 mm |
| Jul | 29.5 °C | +1.6 °C | 145 mm | +52 mm |
| Aug | 29.2 °C | +1.9 °C | 172 mm | +68 mm |
| Sep | 24.5 °C | +1.3 °C | 151 mm | +47 mm |
| Oct | 18.2 °C | +1.0 °C | 67 mm | -43 mm |
| Nov | 12.3 °C | +1.4 °C | 100 mm | -5 mm |
| Dec | 9.7 °C | +3.2 °C | 70 mm | +6 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 Spirano?
Spirano has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 1,081 mm of precipitation per year.
What is the hottest day ever recorded in Spirano?
The hottest day measured in Spirano between 1940 and 2025 was 10 August 2003, reaching 37.8 °C.
What is the coldest day in Spirano?
The coldest day measured in Spirano between 1940 and 2025 was 11 January 1945, at -20.6 °C.
Does it snow in Spirano?
Yes. Spirano gets on average 24.2 cm of snow per year and has around 57 frost days.
Has the climate of Spirano warmed?
Yes: Spirano warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Spirano?
The wettest day measured in Spirano between 1940 and 2025 was 1 September 2018, with 100 mm of rain in 24 hours.
What was the windiest day in Spirano?
The windiest day measured in Spirano between 1940 and 2025 was 29 October 2018, with winds reaching 37.1 km/h.
What is the warmest month in Spirano?
The warmest month in Spirano is July (23.0 °C on average); the coldest is January (1.8 °C).
How much does it rain in Spirano?
Spirano receives on average 1,081 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Spirano?
Spirano 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 Spirano?
The heaviest 24-hour snowfall measured in Spirano between 1940 and 2025 was 16 January 1985, with 25.2 cm.
Are there tropical nights in Spirano?
Yes: Spirano has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Spirano?
In Spirano, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 6 July 1957, and the lowest was -25.6 °C on 11 January 1945.
Compare Spirano with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Spirano