Stella climate — normals and trends
Stella (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.9 °C and it receives 1,099 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 August (24.6 °C on average) and the coldest is January (10.6 °C). Rainfall peaks in November.
Stella averages 0 frost days, 0 hot days (≥ 30 °C) and 108 rainy days per year.
Stella has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.3 °C (on 11 August 2024) and the coldest -0.5 °C (on 29 December 1941).
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
StellaCampania
- coords
- 40.86°, 14.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.9°C
Average daily high
18.2°C
Average daily low
15.6°C
Annual rainfall
1,099mm
Sunshine / day
10.2h
Mean relative humidity
76%
Average peak wind
21.5km/h
Seasonal range
14.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
108 d/yr
Annual snowfall
0.4 cm
Average feels-like high
18.1 °C
Average feels-like low
14.3 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
100 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
31.3 °C
11 August 2024
Coldest day
-0.5 °C
29 December 1941
Wettest day
98 mm
18 November 1985
Windiest day
71.3 km/h
28 December 1999
Strongest gust
114.5 km/h
28 December 1999
Hottest feels-like
37.6 °C
30 July 2024
Coldest feels-like
-9.2 °C
23 January 1963
Snowiest day
4.3 cm
3 December 1973
Sunniest day
14.0 h
6 July 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 | 13.8 °C | +1.8 °C | 104 mm | -32 mm |
| Feb | 13.7 °C | +1.6 °C | 116 mm | +3 mm |
| Mar | 15.0 °C | +1.8 °C | 68 mm | -22 mm |
| Apr | 16.7 °C | +1.4 °C | 30 mm | -38 mm |
| May | 19.9 °C | +1.1 °C | 28 mm | -15 mm |
| Jun | 25.7 °C | +3.2 °C | 1 mm | -21 mm |
| Jul | 27.0 °C | +1.9 °C | 20 mm | +10 mm |
| Aug | 26.7 °C | +1.0 °C | 38 mm | +11 mm |
| Sep | 24.8 °C | +1.4 °C | 128 mm | +41 mm |
| Oct | 20.2 °C | 0.0 °C | 95 mm | -43 mm |
| Nov | 17.0 °C | +0.5 °C | 238 mm | +42 mm |
| Dec | 14.8 °C | +1.4 °C | 138 mm | -31 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 Stella?
Stella has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.9 °C and it receives 1,099 mm of precipitation per year.
What is the hottest day ever recorded in Stella?
The hottest day measured in Stella between 1940 and 2025 was 11 August 2024, reaching 31.3 °C.
What is the coldest day in Stella?
The coldest day measured in Stella between 1940 and 2025 was 29 December 1941, at -0.5 °C.
Does it snow in Stella?
Almost never: Stella sees virtually no snow, with about 0 frost days per year.
Has the climate of Stella warmed?
Yes: Stella warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stella?
The wettest day measured in Stella between 1940 and 2025 was 18 November 1985, with 98 mm of rain in 24 hours.
What was the windiest day in Stella?
The windiest day measured in Stella between 1940 and 2025 was 28 December 1999, with winds reaching 71.3 km/h.
What is the warmest month in Stella?
The warmest month in Stella is August (24.6 °C on average); the coldest is January (10.6 °C).
How much does it rain in Stella?
Stella receives on average 1,099 mm of precipitation per year, spread over about 108 rainy days.
Is it sunny in Stella?
Stella gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stella?
The heaviest 24-hour snowfall measured in Stella between 1940 and 2025 was 3 December 1973, with 4.3 cm.
Are there tropical nights in Stella?
Yes: Stella has on average 100 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Stella?
In Stella, between 1940 and 2025, the highest apparent temperature reached 37.6 °C on 30 July 2024, and the lowest was -9.2 °C on 23 January 1963.
Compare Stella with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Stella