Rosate climate — normals and trends
Rosate (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.4 °C and it receives 1,054 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 (24.4 °C on average) and the coldest is January (2.0 °C). Rainfall peaks in November.
Rosate averages 48 frost days, 35 hot days (≥ 30 °C) and 114 rainy days per year.
Rosate has warmed by +3.2 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The number of frost days there went from about 72 to 24 per year over the period.
The hottest day of the period reached 40.6 °C (on 27 June 2019) and the coldest -19.5 °C (on 9 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
RosateLombardy
- coords
- 45.35°, 9.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.4°C
Average daily high
17.9°C
Average daily low
9.5°C
Annual rainfall
1,054mm
Sunshine / day
9.2h
Mean relative humidity
73%
Average peak wind
11.6km/h
Seasonal range
22.4°C
Frost days (< 0 °C)
48 d/yr
Hot days (≥ 30 °C)
35 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
30.6 cm
Average feels-like high
17.1 °C
Average feels-like low
8.1 °C
Average peak gust
23.6 km/h
Tropical nights (≥ 20 °C)
32 d/yr
Solar radiation
13.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.2 °C
since 1940
+0.4 °C per decade · r² = 0.74 · 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
40.6 °C
27 June 2019
Coldest day
-19.5 °C
9 January 1945
Wettest day
110 mm
18 August 1979
Windiest day
45.0 km/h
31 January 1986
Strongest gust
81.0 km/h
26 September 1956
Hottest feels-like
42.8 °C
6 July 1957
Coldest feels-like
-24.2 °C
9 January 1945
Snowiest day
33.0 cm
17 February 1967
Sunniest day
15.0 h
1 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 | 7.7 °C | +2.0 °C | 102 mm | +40 mm |
| Feb | 9.8 °C | +1.0 °C | 56 mm | -8 mm |
| Mar | 15.5 °C | +1.6 °C | 101 mm | +22 mm |
| Apr | 20.2 °C | +2.3 °C | 129 mm | +31 mm |
| May | 23.8 °C | +1.4 °C | 163 mm | +56 mm |
| Jun | 31.8 °C | +5.1 °C | 24 mm | -64 mm |
| Jul | 30.7 °C | +1.1 °C | 121 mm | +47 mm |
| Aug | 30.6 °C | +1.7 °C | 159 mm | +64 mm |
| Sep | 25.2 °C | +0.6 °C | 90 mm | -1 mm |
| Oct | 19.2 °C | +1.0 °C | 50 mm | -61 mm |
| Nov | 12.4 °C | +1.0 °C | 71 mm | -42 mm |
| Dec | 9.4 °C | +2.6 °C | 96 mm | +25 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 Rosate?
Rosate has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 1,054 mm of precipitation per year.
What is the hottest day ever recorded in Rosate?
The hottest day measured in Rosate between 1940 and 2025 was 27 June 2019, reaching 40.6 °C.
What is the coldest day in Rosate?
The coldest day measured in Rosate between 1940 and 2025 was 9 January 1945, at -19.5 °C.
Does it snow in Rosate?
Yes. Rosate gets on average 30.6 cm of snow per year and has around 48 frost days.
Has the climate of Rosate warmed?
Yes: Rosate warmed by +3.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rosate?
The wettest day measured in Rosate between 1940 and 2025 was 18 August 1979, with 110 mm of rain in 24 hours.
What was the windiest day in Rosate?
The windiest day measured in Rosate between 1940 and 2025 was 31 January 1986, with winds reaching 45.0 km/h.
What is the warmest month in Rosate?
The warmest month in Rosate is July (24.4 °C on average); the coldest is January (2.0 °C).
How much does it rain in Rosate?
Rosate receives on average 1,054 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Rosate?
Rosate 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 Rosate?
The heaviest 24-hour snowfall measured in Rosate between 1940 and 2025 was 17 February 1967, with 33.0 cm.
Are there tropical nights in Rosate?
Yes: Rosate has on average 32 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rosate?
In Rosate, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 6 July 1957, and the lowest was -24.2 °C on 9 January 1945.
Compare Rosate with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rosate