Sulmona climate — normals and trends
Sulmona (Italy) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.8 °C and it receives 1,059 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 (18.3 °C on average) and the coldest is January (-0.3 °C). Rainfall peaks in November.
Sulmona averages 103 frost days, 2 hot days (≥ 30 °C) and 143 rainy days per year.
Sulmona has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 123 to 83 per year over the period.
The hottest day of the period reached 34.3 °C (on 28 August 1956) and the coldest -25.5 °C (on 30 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
SulmonaAbruzzo
- coords
- 42.05°, 13.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.8°C
Average daily high
13.6°C
Average daily low
4.2°C
Annual rainfall
1,059mm
Sunshine / day
9.8h
Mean relative humidity
79%
Average peak wind
7.4km/h
Seasonal range
18.6°C
Frost days (< 0 °C)
103 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
158.5 cm
Average feels-like high
12.5 °C
Average feels-like low
2.2 °C
Average peak gust
38.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.52 · 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
34.3 °C
28 August 1956
Coldest day
-25.5 °C
30 December 1941
Wettest day
88 mm
18 January 2017
Windiest day
21.9 km/h
6 November 2016
Strongest gust
148.7 km/h
29 October 2018
Hottest feels-like
35.7 °C
21 June 2024
Coldest feels-like
-29.8 °C
30 December 1941
Snowiest day
61.5 cm
18 January 2017
Sunniest day
14.2 h
30 June 1942
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 | 6.4 °C | +2.6 °C | 68 mm | -20 mm |
| Feb | 7.7 °C | +2.7 °C | 96 mm | +14 mm |
| Mar | 10.8 °C | +2.7 °C | 188 mm | +94 mm |
| Apr | 14.1 °C | +2.1 °C | 111 mm | +8 mm |
| May | 17.0 °C | +0.4 °C | 142 mm | +38 mm |
| Jun | 26.0 °C | +5.3 °C | 33 mm | -51 mm |
| Jul | 25.5 °C | +1.9 °C | 72 mm | +9 mm |
| Aug | 24.5 °C | +0.7 °C | 62 mm | -2 mm |
| Sep | 22.5 °C | +2.5 °C | 52 mm | -30 mm |
| Oct | 14.9 °C | -0.3 °C | 76 mm | -14 mm |
| Nov | 10.8 °C | +1.2 °C | 94 mm | -16 mm |
| Dec | 8.5 °C | +3.3 °C | 34 mm | -64 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 Sulmona?
Sulmona has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.8 °C and it receives 1,059 mm of precipitation per year.
What is the hottest day ever recorded in Sulmona?
The hottest day measured in Sulmona between 1940 and 2025 was 28 August 1956, reaching 34.3 °C.
What is the coldest day in Sulmona?
The coldest day measured in Sulmona between 1940 and 2025 was 30 December 1941, at -25.5 °C.
Does it snow in Sulmona?
Yes. Sulmona gets on average 158.5 cm of snow per year and has around 103 frost days.
Has the climate of Sulmona warmed?
Yes: Sulmona warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sulmona?
The wettest day measured in Sulmona between 1940 and 2025 was 18 January 2017, with 88 mm of rain in 24 hours.
What was the windiest day in Sulmona?
The windiest day measured in Sulmona between 1940 and 2025 was 6 November 2016, with winds reaching 21.9 km/h.
What is the warmest month in Sulmona?
The warmest month in Sulmona is July (18.3 °C on average); the coldest is January (-0.3 °C).
How much does it rain in Sulmona?
Sulmona receives on average 1,059 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Sulmona?
Sulmona gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sulmona?
The heaviest 24-hour snowfall measured in Sulmona between 1940 and 2025 was 18 January 2017, with 61.5 cm.
Are there tropical nights in Sulmona?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sulmona.
What was the most extreme apparent temperature in Sulmona?
In Sulmona, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 21 June 2024, and the lowest was -29.8 °C on 30 December 1941.
Compare Sulmona with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sulmona