Air temperature, hot days, tropical nights and icing days - Cities in Herne
Herne: Air temperature, hot days, tropical nights and icing days - Cities was 0.338 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Herne, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
The most recent figure for air temperature, hot days, tropical nights and icing days - cities in Herne is 0.338 Degrees celsius, measured in 2025.
That represents a change of down 81.5% on the previous year and down 57.8% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Herne peaked at 1.83 Degrees celsius in 2018 and was at its lowest, -1.71 Degrees celsius, in 1985.
Herne ranks 689th 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 Herne, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.8491 Degrees celsius | — |
| 1982 | 0.2444 Degrees celsius | -128.8% |
| 1983 | 0.0806 Degrees celsius | -67.0% |
| 1984 | -0.6986 Degrees celsius | -966.8% |
| 1985 | -1.71 Degrees celsius | +145.4% |
| 1986 | -1 Degrees celsius | -41.4% |
| 1987 | -1.48 Degrees celsius | +47.7% |
| 1988 | 0.3041 Degrees celsius | -120.5% |
| 1989 | 0.8634 Degrees celsius | +183.9% |
| 1990 | 0.7673 Degrees celsius | -11.1% |
| 1991 | -0.4021 Degrees celsius | -152.4% |
| 1992 | 0.4106 Degrees celsius | -202.1% |
| 1993 | -0.4603 Degrees celsius | -212.1% |
| 1994 | 0.7478 Degrees celsius | -262.5% |
| 1995 | 0.3816 Degrees celsius | -49.0% |
| 1996 | -1.68 Degrees celsius | -541.2% |
| 1997 | -0.0741 Degrees celsius | -95.6% |
| 1998 | 0.0045 Degrees celsius | -106.1% |
| 1999 | 0.6838 Degrees celsius | +15095.7% |
| 2000 | 0.7926 Degrees celsius | +15.9% |
| 2001 | 0.1243 Degrees celsius | -84.3% |
| 2002 | 0.6137 Degrees celsius | +393.7% |
| 2003 | 0.5561 Degrees celsius | -9.4% |
| 2004 | -0.0006 Degrees celsius | -100.1% |
| 2005 | 0.4378 Degrees celsius | -69969.7% |
| 2006 | 0.8953 Degrees celsius | +104.5% |
| 2007 | 0.9452 Degrees celsius | +5.6% |
| 2008 | 0.2962 Degrees celsius | -68.7% |
| 2009 | 0.3049 Degrees celsius | +3.0% |
| 2010 | -1.08 Degrees celsius | -454.9% |
| 2011 | 0.862 Degrees celsius | -179.7% |
| 2012 | 0.2049 Degrees celsius | -76.2% |
| 2013 | -0.2117 Degrees celsius | -203.3% |
| 2014 | 1.5 Degrees celsius | -806.1% |
| 2015 | 0.8017 Degrees celsius | -46.4% |
| 2016 | 0.6977 Degrees celsius | -13.0% |
| 2017 | 0.9302 Degrees celsius | +33.3% |
| 2018 | 1.83 Degrees celsius | +97.2% |
| 2019 | 1.42 Degrees celsius | -22.7% |
| 2020 | 1.81 Degrees celsius | +27.6% |
| 2021 | 0.1758 Degrees celsius | -90.3% |
| 2022 | 1.71 Degrees celsius | +874.6% |
| 2023 | 1.69 Degrees celsius | -1.5% |
| 2024 | 1.83 Degrees celsius | +8.4% |
| 2025 | 0.338 Degrees celsius | -81.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.4732 Degrees celsius | -1.71 Degrees celsius | 0.8634 Degrees celsius | 9 |
| 1990s | 0.0375 Degrees celsius | -1.68 Degrees celsius | 0.7673 Degrees celsius | 10 |
| 2000s | 0.4966 Degrees celsius | -0.0006 Degrees celsius | 0.9452 Degrees celsius | 10 |
| 2010s | 0.6951 Degrees celsius | -1.08 Degrees celsius | 1.83 Degrees celsius | 10 |
| 2020s | 1.26 Degrees celsius | 0.1758 Degrees celsius | 1.83 Degrees celsius | 6 |
More climate change data for Herne
- Air temperature, hot days, tropical nights and icing days - Cities 10.3 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 11.88 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.49 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 0.18 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 0.08 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.66 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.1 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 1.04 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Herne?
- Air temperature, hot days, tropical nights and icing days - cities in Herne was 0.338 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 Herne?
- The highest recorded value was 1.83 Degrees celsius in 2018.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Herne?
- The lowest recorded value was -1.71 Degrees celsius in 1985.
- How does Herne rank for air temperature, hot days, tropical nights and icing days - cities?
- Herne ranks 689th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Herne?
- Over the last ten years it is down 57.8%. The long-run trend across the full record is volatile.
- Where does this Herne 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