Air temperature, hot days, tropical nights and icing days - Cities in St. Helens
St. Helens: Air temperature, hot days, tropical nights and icing days - Cities was 0.9026 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in St. Helens, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
St. Helens recorded 0.9026 Degrees celsius for air temperature, hot days, tropical nights and icing days - cities in 2025.
That represents a change of down 9.1% on the previous year and up 375.1% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in St. Helens peaked at 1.17 Degrees celsius in 2023 and was at its lowest, -1.18 Degrees celsius, in 1986.
That places St. Helens 566th 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 St. Helens, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.7601 Degrees celsius | — |
| 1982 | -0.0674 Degrees celsius | -91.1% |
| 1983 | -0.0308 Degrees celsius | -54.3% |
| 1984 | -0.1609 Degrees celsius | +422.8% |
| 1985 | -1.01 Degrees celsius | +530.4% |
| 1986 | -1.18 Degrees celsius | +16.4% |
| 1987 | -0.8761 Degrees celsius | -25.8% |
| 1988 | 0.0352 Degrees celsius | -104.0% |
| 1989 | 0.4964 Degrees celsius | +1311.4% |
| 1990 | 0.6755 Degrees celsius | +36.1% |
| 1991 | -0.3095 Degrees celsius | -145.8% |
| 1992 | -0.0709 Degrees celsius | -77.1% |
| 1993 | -0.5289 Degrees celsius | +645.8% |
| 1994 | 0.0748 Degrees celsius | -114.1% |
| 1995 | 0.4856 Degrees celsius | +549.6% |
| 1996 | -0.7891 Degrees celsius | -262.5% |
| 1997 | 0.5144 Degrees celsius | -165.2% |
| 1998 | 0.3635 Degrees celsius | -29.3% |
| 1999 | 0.595 Degrees celsius | +63.7% |
| 2000 | 0.1571 Degrees celsius | -73.6% |
| 2001 | -0.2083 Degrees celsius | -232.6% |
| 2002 | 0.5386 Degrees celsius | -358.5% |
| 2003 | 0.5201 Degrees celsius | -3.4% |
| 2004 | 0.54 Degrees celsius | +3.8% |
| 2005 | 0.5833 Degrees celsius | +8.0% |
| 2006 | 0.8013 Degrees celsius | +37.4% |
| 2007 | 0.6218 Degrees celsius | -22.4% |
| 2008 | 0.0662 Degrees celsius | -89.3% |
| 2009 | 0.0706 Degrees celsius | +6.6% |
| 2010 | -1.14 Degrees celsius | -1718.6% |
| 2011 | 0.735 Degrees celsius | -164.3% |
| 2012 | -0.3321 Degrees celsius | -145.2% |
| 2013 | -0.3869 Degrees celsius | +16.5% |
| 2014 | 0.8988 Degrees celsius | -332.3% |
| 2015 | 0.19 Degrees celsius | -78.9% |
| 2016 | 0.3944 Degrees celsius | +107.6% |
| 2017 | 0.7697 Degrees celsius | +95.2% |
| 2018 | 0.7337 Degrees celsius | -4.7% |
| 2019 | 0.508 Degrees celsius | -30.8% |
| 2020 | 0.7759 Degrees celsius | +52.7% |
| 2021 | 0.4422 Degrees celsius | -43.0% |
| 2022 | 1.12 Degrees celsius | +153.5% |
| 2023 | 1.17 Degrees celsius | +4.4% |
| 2024 | 0.9925 Degrees celsius | -15.2% |
| 2025 | 0.9026 Degrees celsius | -9.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.3953 Degrees celsius | -1.18 Degrees celsius | 0.4964 Degrees celsius | 9 |
| 1990s | 0.101 Degrees celsius | -0.7891 Degrees celsius | 0.6755 Degrees celsius | 10 |
| 2000s | 0.3691 Degrees celsius | -0.2083 Degrees celsius | 0.8013 Degrees celsius | 10 |
| 2010s | 0.2368 Degrees celsius | -1.14 Degrees celsius | 0.8988 Degrees celsius | 10 |
| 2020s | 0.9008 Degrees celsius | 0.4422 Degrees celsius | 1.17 Degrees celsius | 6 |
More climate change data for St. Helens
- Air temperature, hot days, tropical nights and icing days - Cities 10.43 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 10.65 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.07 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 0.24 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.37 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.36 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.02 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.28 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.97 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in St. Helens?
- Air temperature, hot days, tropical nights and icing days - cities in St. Helens was 0.9026 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 St. Helens?
- The highest recorded value was 1.17 Degrees celsius in 2023.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in St. Helens?
- The lowest recorded value was -1.18 Degrees celsius in 1986.
- How does St. Helens rank for air temperature, hot days, tropical nights and icing days - cities?
- St. Helens ranks 566th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in St. Helens?
- Over the last ten years it is up 375.1%. The long-run trend across the full record is volatile.
- Where does this St. Helens 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