Air temperature, hot days, tropical nights and icing days - Cities in Halton
Halton: Air temperature, hot days, tropical nights and icing days - Cities was 0.9448 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Halton, 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 Halton is 0.9448 Degrees celsius, measured in 2025.
Compared with earlier readings it is down 5.9% on the previous year and up 332.9% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Halton peaked at 1.19 Degrees celsius in 2023 and was at its lowest, -1.18 Degrees celsius, in 1986.
Halton ranks 554th 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 Halton, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.7645 Degrees celsius | — |
| 1982 | -0.0707 Degrees celsius | -90.7% |
| 1983 | -0.0222 Degrees celsius | -68.6% |
| 1984 | -0.1632 Degrees celsius | +635.3% |
| 1985 | -1.04 Degrees celsius | +535.3% |
| 1986 | -1.18 Degrees celsius | +14.2% |
| 1987 | -0.8659 Degrees celsius | -26.8% |
| 1988 | 0.0311 Degrees celsius | -103.6% |
| 1989 | 0.4962 Degrees celsius | +1496.4% |
| 1990 | 0.6976 Degrees celsius | +40.6% |
| 1991 | -0.3224 Degrees celsius | -146.2% |
| 1992 | -0.0789 Degrees celsius | -75.5% |
| 1993 | -0.5306 Degrees celsius | +572.3% |
| 1994 | 0.0952 Degrees celsius | -117.9% |
| 1995 | 0.4939 Degrees celsius | +418.7% |
| 1996 | -0.8089 Degrees celsius | -263.8% |
| 1997 | 0.5133 Degrees celsius | -163.5% |
| 1998 | 0.3592 Degrees celsius | -30.0% |
| 1999 | 0.6008 Degrees celsius | +67.3% |
| 2000 | 0.1816 Degrees celsius | -69.8% |
| 2001 | -0.2201 Degrees celsius | -221.2% |
| 2002 | 0.5489 Degrees celsius | -349.4% |
| 2003 | 0.5196 Degrees celsius | -5.3% |
| 2004 | 0.5425 Degrees celsius | +4.4% |
| 2005 | 0.5889 Degrees celsius | +8.6% |
| 2006 | 0.8146 Degrees celsius | +38.3% |
| 2007 | 0.6067 Degrees celsius | -25.5% |
| 2008 | 0.0612 Degrees celsius | -89.9% |
| 2009 | 0.0724 Degrees celsius | +18.5% |
| 2010 | -1.16 Degrees celsius | -1696.0% |
| 2011 | 0.7809 Degrees celsius | -167.5% |
| 2012 | -0.3288 Degrees celsius | -142.1% |
| 2013 | -0.3834 Degrees celsius | +16.6% |
| 2014 | 0.9106 Degrees celsius | -337.5% |
| 2015 | 0.2182 Degrees celsius | -76.0% |
| 2016 | 0.3919 Degrees celsius | +79.6% |
| 2017 | 0.7898 Degrees celsius | +101.5% |
| 2018 | 0.7669 Degrees celsius | -2.9% |
| 2019 | 0.5064 Degrees celsius | -34.0% |
| 2020 | 0.7956 Degrees celsius | +57.1% |
| 2021 | 0.4524 Degrees celsius | -43.1% |
| 2022 | 1.14 Degrees celsius | +152.6% |
| 2023 | 1.19 Degrees celsius | +3.7% |
| 2024 | 1 Degrees celsius | -15.3% |
| 2025 | 0.9448 Degrees celsius | -5.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.3977 Degrees celsius | -1.18 Degrees celsius | 0.4962 Degrees celsius | 9 |
| 1990s | 0.1019 Degrees celsius | -0.8089 Degrees celsius | 0.6976 Degrees celsius | 10 |
| 2000s | 0.3716 Degrees celsius | -0.2201 Degrees celsius | 0.8146 Degrees celsius | 10 |
| 2010s | 0.2496 Degrees celsius | -1.16 Degrees celsius | 0.9106 Degrees celsius | 10 |
| 2020s | 0.9208 Degrees celsius | 0.4524 Degrees celsius | 1.19 Degrees celsius | 6 |
More climate change data for Halton
- Air temperature, hot days, tropical nights and icing days - Cities 10.49 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 10.84 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.06 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 0.12 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.15 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.15 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.33 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.12 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.82 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Halton?
- Air temperature, hot days, tropical nights and icing days - cities in Halton was 0.9448 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 Halton?
- The highest recorded value was 1.19 Degrees celsius in 2023.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Halton?
- The lowest recorded value was -1.18 Degrees celsius in 1986.
- How does Halton rank for air temperature, hot days, tropical nights and icing days - cities?
- Halton ranks 554th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Halton?
- Over the last ten years it is up 332.9%. The long-run trend across the full record is volatile.
- Where does this Halton 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