Air temperature, hot days, tropical nights and icing days - Cities in Karlsruhe
Karlsruhe: Air temperature, hot days, tropical nights and icing days - Cities was -0.6409 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Karlsruhe, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
Karlsruhe recorded -0.6409 Degrees celsius for air temperature, hot days, tropical nights and icing days - cities in 2025.
Compared with earlier readings it is down 134.2% on the previous year and down 146.6% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Karlsruhe peaked at 2.23 Degrees celsius in 2023 and was at its lowest, -1.51 Degrees celsius, in 1996.
That places Karlsruhe 917th out of 1314 regions with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Air temperature, hot days, tropical nights and icing days - Cities in Karlsruhe, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.7625 Degrees celsius | — |
| 1982 | -0.0832 Degrees celsius | -89.1% |
| 1983 | 0.0629 Degrees celsius | -175.6% |
| 1984 | -1.04 Degrees celsius | -1751.5% |
| 1985 | -1.34 Degrees celsius | +29.2% |
| 1986 | -0.9948 Degrees celsius | -25.9% |
| 1987 | -1.3 Degrees celsius | +30.8% |
| 1988 | 0.336 Degrees celsius | -125.8% |
| 1989 | 0.611 Degrees celsius | +81.8% |
| 1990 | 0.6683 Degrees celsius | +9.4% |
| 1991 | -0.1788 Degrees celsius | -126.7% |
| 1992 | 0.4998 Degrees celsius | -379.6% |
| 1993 | -0.2041 Degrees celsius | -140.8% |
| 1994 | 1.06 Degrees celsius | -617.8% |
| 1995 | -0.0131 Degrees celsius | -101.2% |
| 1996 | -1.51 Degrees celsius | +11465.2% |
| 1997 | -0.1136 Degrees celsius | -92.5% |
| 1998 | -0.1045 Degrees celsius | -8.0% |
| 1999 | 0.2709 Degrees celsius | -359.1% |
| 2000 | 0.8233 Degrees celsius | +204.0% |
| 2001 | 0.199 Degrees celsius | -75.8% |
| 2002 | 0.5558 Degrees celsius | +179.3% |
| 2003 | 0.9484 Degrees celsius | +70.6% |
| 2004 | 0.1106 Degrees celsius | -88.3% |
| 2005 | 0.1233 Degrees celsius | +11.5% |
| 2006 | 0.6759 Degrees celsius | +448.3% |
| 2007 | 0.8068 Degrees celsius | +19.4% |
| 2008 | 0.354 Degrees celsius | -56.1% |
| 2009 | 0.4577 Degrees celsius | +29.3% |
| 2010 | -0.9129 Degrees celsius | -299.4% |
| 2011 | 1.07 Degrees celsius | -217.5% |
| 2012 | 0.5619 Degrees celsius | -47.6% |
| 2013 | -0.1538 Degrees celsius | -127.4% |
| 2014 | 1.58 Degrees celsius | -1125.7% |
| 2015 | 1.38 Degrees celsius | -12.8% |
| 2016 | 0.6522 Degrees celsius | -52.6% |
| 2017 | 0.8666 Degrees celsius | +32.9% |
| 2018 | 2.12 Degrees celsius | +145.0% |
| 2019 | 1.46 Degrees celsius | -31.4% |
| 2020 | 1.89 Degrees celsius | +29.8% |
| 2021 | 0.1056 Degrees celsius | -94.4% |
| 2022 | 2.07 Degrees celsius | +1857.8% |
| 2023 | 2.23 Degrees celsius | +7.7% |
| 2024 | 1.88 Degrees celsius | -15.7% |
| 2025 | -0.6409 Degrees celsius | -134.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.5013 Degrees celsius | -1.34 Degrees celsius | 0.611 Degrees celsius | 9 |
| 1990s | 0.037 Degrees celsius | -1.51 Degrees celsius | 1.06 Degrees celsius | 10 |
| 2000s | 0.5055 Degrees celsius | 0.1106 Degrees celsius | 0.9484 Degrees celsius | 10 |
| 2010s | 0.8619 Degrees celsius | -0.9129 Degrees celsius | 2.12 Degrees celsius | 10 |
| 2020s | 1.25 Degrees celsius | -0.6409 Degrees celsius | 2.23 Degrees celsius | 6 |
More climate change data for Karlsruhe
- Air temperature, hot days, tropical nights and icing days - Cities 9.72 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 12.31 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.65 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.01 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.3 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.51 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.5 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 3.18 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.17 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 5.19 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Karlsruhe?
- Air temperature, hot days, tropical nights and icing days - cities in Karlsruhe was -0.6409 Degrees celsius in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest air temperature, hot days, tropical nights and icing days - cities recorded in Karlsruhe?
- The highest recorded value was 2.23 Degrees celsius in 2023.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Karlsruhe?
- The lowest recorded value was -1.51 Degrees celsius in 1996.
- How does Karlsruhe rank for air temperature, hot days, tropical nights and icing days - cities?
- Karlsruhe ranks 917th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Karlsruhe?
- Over the last ten years it is down 146.6%. The long-run trend across the full record is volatile.
- Where does this Karlsruhe data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Air temperature, hot days, tropical nights and icing days - Cities and FUAs — Change in air temperature at 2 meters from 1981–2010 period. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
This dataset provides indicators of air temperature, hot days, tropical nights and icing days. Data sources and methodology Indicators are estimated using ERA5-Land data. Air temperature indicators correspond to the average annual air temperature at a height of 2 meters. Hot days correspond to the number of days when the maximum temperature exceeds 35°C. Tropical nights correspond to the days when the minimum temperature is above 20°C, and icing days to the number of days when the maximum temperature is below 0°C. ERA5-Land is used as it provides harmonised, globally consistent coverage at fine spatial resolution (0.1 degree), enabling the production of comparable subnational indicators also where national meteorological data are not available at the required scale. These estimates may differ from official subnational climate statistics due to differences in methodological approaches, such as the use of reanalysis based top down modelling versus in situ observations, along with variations in input data sources, spatial resolution, and the models and algorithms used to generate temperature estimates. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries. Cite this dataset OECD Regions, cities and local areas database (Air temperature, hot days, tropical nights and icing days - FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org