Cooling and heating degree days by NUTS 2 regions - annual data in Siena

Siena: Cooling and heating degree days by NUTS 2 regions - annual data was 1,516 in 2025. ▼ Falling

Latest (2025)
1,516
Change on year
down 0.8%
Rank
1544th
of 1715 regions
All-time high
2,346
in 1991
All-time low
1,516
in 2025
Years of data
46
1980–2025

Cooling and heating degree days by NUTS 2 regions - annual data in Siena, 1980–2025

05001.0k1.5k2.0k2.5k198020022025

Source: Eurostat.

Analysis

Siena recorded 1,516 for cooling and heating degree days by nuts 2 regions - annual data in 2025. That is the lowest value across all 46 years on record.

Compared with earlier readings it is down 0.8% on the previous year and down 15.2% over ten years.

Over the whole period, cooling and heating degree days by nuts 2 regions - annual data in Siena peaked at 2,346 in 1991 and was at its lowest, 1,516, in 2025.

Siena ranks 1544th of 1715 regions on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 46 years of available data.

Averages by decade

DecadeAverage LowestHighest Years
1980s 2,142 1,969 2,291 10
1990s 2,037 1,900 2,346 10
2000s 1,901 1,678 2,233 10
2010s 1,792 1,561 2,016 10
2020s 1,665 1,516 1,897 6

More reference data data for Siena

All data for Siena →

Frequently asked questions

What is cooling and heating degree days by nuts 2 regions - annual data in Siena?
Cooling and heating degree days by nuts 2 regions - annual data in Siena was 1,516 in 2025, according to Eurostat.
What is the highest cooling and heating degree days by nuts 2 regions - annual data recorded in Siena?
The highest recorded value was 2,346 in 1991.
What is the lowest cooling and heating degree days by nuts 2 regions - annual data recorded in Siena?
The lowest recorded value was 1,516 in 2025.
How does Siena rank for cooling and heating degree days by nuts 2 regions - annual data?
Siena ranks 1544th out of 1715 regions with data for 2025.
Is cooling and heating degree days by nuts 2 regions - annual data rising or falling in Siena?
Over the last ten years it is down 15.2%. The long-run trend across the full record is falling.
Where does this Siena data come from?
The figures come from Eurostat, published as part of Cooling and heating degree days by NUTS 2 regions - annual data. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 46 observations, free to reuse under CC BY 4.0 (Eurostat).

About this data

Indicator
Cooling and heating degree days by NUTS 2 regions - annual data
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
1,742 places, 80,132 data points, 1980–2025
Last refreshed