Air temperature, hot days, tropical nights and icing days - Cities in Witten
Witten: Air temperature, hot days, tropical nights and icing days - Cities was 0.4155 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Witten, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
Witten recorded 0.4155 Degrees celsius for air temperature, hot days, tropical nights and icing days - cities in 2025.
The figure is down 77.0% on the previous year and down 49.5% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Witten peaked at 1.84 Degrees celsius in 2018 and was at its lowest, -1.69 Degrees celsius, in 1985.
Witten ranks 660th of 1314 regions on this measure, 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 Witten, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.8639 Degrees celsius | — |
| 1982 | 0.2268 Degrees celsius | -126.3% |
| 1983 | 0.0555 Degrees celsius | -75.6% |
| 1984 | -0.7213 Degrees celsius | -1400.6% |
| 1985 | -1.69 Degrees celsius | +133.7% |
| 1986 | -1.09 Degrees celsius | -35.1% |
| 1987 | -1.52 Degrees celsius | +38.5% |
| 1988 | 0.2831 Degrees celsius | -118.7% |
| 1989 | 0.8953 Degrees celsius | +216.3% |
| 1990 | 0.7555 Degrees celsius | -15.6% |
| 1991 | -0.3752 Degrees celsius | -149.7% |
| 1992 | 0.436 Degrees celsius | -216.2% |
| 1993 | -0.4184 Degrees celsius | -196.0% |
| 1994 | 0.7739 Degrees celsius | -285.0% |
| 1995 | 0.3636 Degrees celsius | -53.0% |
| 1996 | -1.65 Degrees celsius | -553.8% |
| 1997 | -0.031 Degrees celsius | -98.1% |
| 1998 | -0.0034 Degrees celsius | -89.0% |
| 1999 | 0.6368 Degrees celsius | -18879.5% |
| 2000 | 0.8076 Degrees celsius | +26.8% |
| 2001 | 0.1097 Degrees celsius | -86.4% |
| 2002 | 0.6613 Degrees celsius | +502.9% |
| 2003 | 0.5694 Degrees celsius | -13.9% |
| 2004 | -0.0107 Degrees celsius | -101.9% |
| 2005 | 0.4152 Degrees celsius | -3984.8% |
| 2006 | 0.8792 Degrees celsius | +111.8% |
| 2007 | 0.9476 Degrees celsius | +7.8% |
| 2008 | 0.3342 Degrees celsius | -64.7% |
| 2009 | 0.2978 Degrees celsius | -10.9% |
| 2010 | -1.08 Degrees celsius | -462.6% |
| 2011 | 0.9357 Degrees celsius | -186.6% |
| 2012 | 0.2197 Degrees celsius | -76.5% |
| 2013 | -0.2473 Degrees celsius | -212.6% |
| 2014 | 1.53 Degrees celsius | -720.1% |
| 2015 | 0.8223 Degrees celsius | -46.4% |
| 2016 | 0.689 Degrees celsius | -16.2% |
| 2017 | 0.9051 Degrees celsius | +31.4% |
| 2018 | 1.84 Degrees celsius | +103.5% |
| 2019 | 1.42 Degrees celsius | -22.8% |
| 2020 | 1.79 Degrees celsius | +25.8% |
| 2021 | 0.1808 Degrees celsius | -89.9% |
| 2022 | 1.72 Degrees celsius | +849.8% |
| 2023 | 1.66 Degrees celsius | -3.3% |
| 2024 | 1.81 Degrees celsius | +9.0% |
| 2025 | 0.4155 Degrees celsius | -77.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.491 Degrees celsius | -1.69 Degrees celsius | 0.8953 Degrees celsius | 9 |
| 1990s | 0.0488 Degrees celsius | -1.65 Degrees celsius | 0.7739 Degrees celsius | 10 |
| 2000s | 0.5011 Degrees celsius | -0.0107 Degrees celsius | 0.9476 Degrees celsius | 10 |
| 2010s | 0.7042 Degrees celsius | -1.08 Degrees celsius | 1.84 Degrees celsius | 10 |
| 2020s | 1.26 Degrees celsius | 0.1808 Degrees celsius | 1.81 Degrees celsius | 6 |
More climate change data for Witten
- Air temperature, hot days, tropical nights and icing days - Cities 10.07 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 11.74 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.52 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.17 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.09 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.08 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.07 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.13 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.48 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Witten?
- Air temperature, hot days, tropical nights and icing days - cities in Witten was 0.4155 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 Witten?
- The highest recorded value was 1.84 Degrees celsius in 2018.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Witten?
- The lowest recorded value was -1.69 Degrees celsius in 1985.
- How does Witten rank for air temperature, hot days, tropical nights and icing days - cities?
- Witten ranks 660th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Witten?
- Over the last ten years it is down 49.5%. The long-run trend across the full record is volatile.
- Where does this Witten 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