Sondrio climate — normals and trends
Sondrio (Italy) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 2.7 °C and it receives 1,325 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 (13.0 °C on average) and the coldest is January (-8.7 °C). Rainfall peaks in June.
Sondrio averages 195 frost days, 0 hot days (≥ 30 °C) and 156 rainy days per year.
Sondrio has warmed by +3.5 °C between 1940 and 2025, or +0.41 °C per decade. This trend is statistically significant.
The number of frost days there went from about 223 to 167 per year over the period.
The hottest day of the period reached 28.7 °C (on 27 June 2019) and the coldest -35.8 °C (on 7 January 1985).
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
SondrioLombardy
- coords
- 46.17°, 9.87°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
2.7°C
Average daily high
7.1°C
Average daily low
-1.7°C
Annual rainfall
1,325mm
Sunshine / day
9.2h
Mean relative humidity
75%
Average peak wind
6.6km/h
Seasonal range
21.7°C
Frost days (< 0 °C)
195 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
333.2 cm
Average feels-like high
5.0 °C
Average feels-like low
-4.8 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.5 °C
since 1940
+0.4 °C per decade · r² = 0.68 · 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
28.7 °C
27 June 2019
Coldest day
-35.8 °C
7 January 1985
Wettest day
100 mm
5 November 2014
Windiest day
14.9 km/h
3 April 1973
Strongest gust
127.1 km/h
29 October 2018
Hottest feels-like
29.6 °C
26 June 2019
Coldest feels-like
-40.7 °C
7 January 1985
Snowiest day
57.2 cm
30 November 2009
Sunniest day
15.0 h
2 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 | -0.8 °C | +3.4 °C | 149 mm | +88 mm |
| Feb | 2.1 °C | +3.4 °C | 26 mm | -34 mm |
| Mar | 4.6 °C | +2.2 °C | 94 mm | +15 mm |
| Apr | 9.4 °C | +3.5 °C | 107 mm | -6 mm |
| May | 12.4 °C | +1.6 °C | 187 mm | +39 mm |
| Jun | 20.0 °C | +4.7 °C | 148 mm | -3 mm |
| Jul | 17.9 °C | +0.2 °C | 156 mm | +14 mm |
| Aug | 18.7 °C | +1.6 °C | 162 mm | +19 mm |
| Sep | 14.1 °C | +0.2 °C | 113 mm | +1 mm |
| Oct | 9.5 °C | +0.6 °C | 61 mm | -62 mm |
| Nov | 4.3 °C | +2.2 °C | 100 mm | -20 mm |
| Dec | 3.2 °C | +6.4 °C | 24 mm | -49 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 Sondrio?
Sondrio has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 2.7 °C and it receives 1,325 mm of precipitation per year.
What is the hottest day ever recorded in Sondrio?
The hottest day measured in Sondrio between 1940 and 2025 was 27 June 2019, reaching 28.7 °C.
What is the coldest day in Sondrio?
The coldest day measured in Sondrio between 1940 and 2025 was 7 January 1985, at -35.8 °C.
Does it snow in Sondrio?
Yes. Sondrio gets on average 333.2 cm of snow per year and has around 195 frost days.
Has the climate of Sondrio warmed?
Yes: Sondrio warmed by +3.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sondrio?
The wettest day measured in Sondrio between 1940 and 2025 was 5 November 2014, with 100 mm of rain in 24 hours.
What was the windiest day in Sondrio?
The windiest day measured in Sondrio between 1940 and 2025 was 3 April 1973, with winds reaching 14.9 km/h.
What is the warmest month in Sondrio?
The warmest month in Sondrio is July (13.0 °C on average); the coldest is January (-8.7 °C).
How much does it rain in Sondrio?
Sondrio receives on average 1,325 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Sondrio?
Sondrio gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sondrio?
The heaviest 24-hour snowfall measured in Sondrio between 1940 and 2025 was 30 November 2009, with 57.2 cm.
Are there tropical nights in Sondrio?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sondrio.
What was the most extreme apparent temperature in Sondrio?
In Sondrio, between 1940 and 2025, the highest apparent temperature reached 29.6 °C on 26 June 2019, and the lowest was -40.7 °C on 7 January 1985.
Compare Sondrio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sondrio