Air temperature, hot days, tropical nights and icing days - Cities in Slough
Slough: Air temperature, hot days, tropical nights and icing days - Cities was 0.4214 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Slough, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
Slough recorded 0.4214 Degrees celsius for air temperature, hot days, tropical nights and icing days - cities in 2025.
Compared with earlier readings it is down 64.1% on the previous year and down 20.0% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Slough peaked at 1.48 Degrees celsius in 2022 and was at its lowest, -1.25 Degrees celsius, in 1986.
That places Slough 658th 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 Slough, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.832 Degrees celsius | — |
| 1982 | -0.067 Degrees celsius | -92.0% |
| 1983 | -0.0143 Degrees celsius | -78.7% |
| 1984 | -0.2858 Degrees celsius | +1900.4% |
| 1985 | -1.11 Degrees celsius | +288.2% |
| 1986 | -1.25 Degrees celsius | +12.7% |
| 1987 | -0.8689 Degrees celsius | -30.5% |
| 1988 | -0.1513 Degrees celsius | -82.6% |
| 1989 | 0.7916 Degrees celsius | -623.3% |
| 1990 | 0.8613 Degrees celsius | +8.8% |
| 1991 | -0.5154 Degrees celsius | -159.8% |
| 1992 | -0.1062 Degrees celsius | -79.4% |
| 1993 | -0.3688 Degrees celsius | +247.2% |
| 1994 | 0.4046 Degrees celsius | -209.7% |
| 1995 | 0.5161 Degrees celsius | +27.6% |
| 1996 | -0.8643 Degrees celsius | -267.5% |
| 1997 | 0.4695 Degrees celsius | -154.3% |
| 1998 | 0.2378 Degrees celsius | -49.3% |
| 1999 | 0.5073 Degrees celsius | +113.3% |
| 2000 | 0.2099 Degrees celsius | -58.6% |
| 2001 | -0.1284 Degrees celsius | -161.2% |
| 2002 | 0.6726 Degrees celsius | -623.7% |
| 2003 | 0.5996 Degrees celsius | -10.9% |
| 2004 | 0.4298 Degrees celsius | -28.3% |
| 2005 | 0.4282 Degrees celsius | -0.4% |
| 2006 | 0.8896 Degrees celsius | +107.8% |
| 2007 | 0.5323 Degrees celsius | -40.2% |
| 2008 | -0.0267 Degrees celsius | -105.0% |
| 2009 | 0.055 Degrees celsius | -306.0% |
| 2010 | -1.02 Degrees celsius | -1949.0% |
| 2011 | 0.8522 Degrees celsius | -183.9% |
| 2012 | -0.2853 Degrees celsius | -133.5% |
| 2013 | -0.4446 Degrees celsius | +55.8% |
| 2014 | 1.07 Degrees celsius | -341.0% |
| 2015 | 0.5266 Degrees celsius | -50.9% |
| 2016 | 0.419 Degrees celsius | -20.4% |
| 2017 | 0.7264 Degrees celsius | +73.4% |
| 2018 | 1.02 Degrees celsius | +41.1% |
| 2019 | 0.6524 Degrees celsius | -36.3% |
| 2020 | 1.15 Degrees celsius | +76.9% |
| 2021 | 0.3221 Degrees celsius | -72.1% |
| 2022 | 1.48 Degrees celsius | +358.8% |
| 2023 | 1.18 Degrees celsius | -19.9% |
| 2024 | 1.17 Degrees celsius | -0.8% |
| 2025 | 0.4214 Degrees celsius | -64.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.4208 Degrees celsius | -1.25 Degrees celsius | 0.7916 Degrees celsius | 9 |
| 1990s | 0.1142 Degrees celsius | -0.8643 Degrees celsius | 0.8613 Degrees celsius | 10 |
| 2000s | 0.3662 Degrees celsius | -0.1284 Degrees celsius | 0.8896 Degrees celsius | 10 |
| 2010s | 0.3527 Degrees celsius | -1.02 Degrees celsius | 1.07 Degrees celsius | 10 |
| 2020s | 0.9554 Degrees celsius | 0.3221 Degrees celsius | 1.48 Degrees celsius | 6 |
More climate change data for Slough
- Air temperature, hot days, tropical nights and icing days - Cities 10.72 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 11.28 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.1 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 0.05 Tonnes of CO2-equivalent (2024)
- 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 0.01 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.06 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.14 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Slough?
- Air temperature, hot days, tropical nights and icing days - cities in Slough was 0.4214 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 Slough?
- The highest recorded value was 1.48 Degrees celsius in 2022.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Slough?
- The lowest recorded value was -1.25 Degrees celsius in 1986.
- How does Slough rank for air temperature, hot days, tropical nights and icing days - cities?
- Slough ranks 658th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Slough?
- Over the last ten years it is down 20.0%. The long-run trend across the full record is volatile.
- Where does this Slough 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