Air temperature, hot days, tropical nights and icing days - Cities in St. Louis
St. Louis: Air temperature, hot days, tropical nights and icing days - Cities was 2.42 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in St. Louis, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
St. Louis recorded 2.42 Degrees celsius for air temperature, hot days, tropical nights and icing days - cities in 2025. That is the highest value across all 45 years on record.
That represents a change of up 55.5% on the previous year and up 832.5% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in St. Louis peaked at 2.42 Degrees celsius in 2025 and was at its lowest, -1.3 Degrees celsius, in 2014.
That places St. Louis 320th out of 1314 regions with data for 2025, putting it in the top quarter.
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. Louis, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.2928 Degrees celsius | — |
| 1982 | -0.9745 Degrees celsius | +232.8% |
| 1983 | -0.5975 Degrees celsius | -38.7% |
| 1984 | -0.494 Degrees celsius | -17.3% |
| 1985 | -0.9794 Degrees celsius | +98.3% |
| 1986 | 0.4669 Degrees celsius | -147.7% |
| 1987 | 0.7152 Degrees celsius | +53.2% |
| 1988 | -0.1148 Degrees celsius | -116.0% |
| 1989 | -0.9595 Degrees celsius | +736.1% |
| 1990 | 0.6596 Degrees celsius | -168.7% |
| 1991 | 0.9205 Degrees celsius | +39.5% |
| 1992 | -0.1297 Degrees celsius | -114.1% |
| 1993 | -0.9526 Degrees celsius | +634.2% |
| 1994 | 0.2063 Degrees celsius | -121.7% |
| 1995 | -0.1422 Degrees celsius | -168.9% |
| 1996 | -0.9438 Degrees celsius | +563.9% |
| 1997 | -0.7019 Degrees celsius | -25.6% |
| 1998 | 1.13 Degrees celsius | -260.9% |
| 1999 | 0.7688 Degrees celsius | -31.9% |
| 2000 | -0.1487 Degrees celsius | -119.3% |
| 2001 | 0.4577 Degrees celsius | -407.8% |
| 2002 | 0.4031 Degrees celsius | -11.9% |
| 2003 | -0.3403 Degrees celsius | -184.4% |
| 2004 | 0.0796 Degrees celsius | -123.4% |
| 2005 | 0.7693 Degrees celsius | +866.4% |
| 2006 | 0.9326 Degrees celsius | +21.2% |
| 2007 | 0.9414 Degrees celsius | +0.9% |
| 2008 | -0.7203 Degrees celsius | -176.5% |
| 2009 | -0.3983 Degrees celsius | -44.7% |
| 2010 | 0.44 Degrees celsius | -210.5% |
| 2011 | 0.5915 Degrees celsius | +34.4% |
| 2012 | 2.19 Degrees celsius | +269.8% |
| 2013 | -0.5864 Degrees celsius | -126.8% |
| 2014 | -1.3 Degrees celsius | +121.5% |
| 2015 | 0.259 Degrees celsius | -119.9% |
| 2016 | 1.25 Degrees celsius | +383.9% |
| 2017 | 1.45 Degrees celsius | +15.8% |
| 2018 | 0.243 Degrees celsius | -83.3% |
| 2019 | -0.0057 Degrees celsius | -102.3% |
| 2020 | 0.3696 Degrees celsius | -6583.0% |
| 2021 | 0.6566 Degrees celsius | +77.7% |
| 2022 | -0.0217 Degrees celsius | -103.3% |
| 2023 | 1.42 Degrees celsius | -6635.6% |
| 2024 | 1.55 Degrees celsius | +9.5% |
| 2025 | 2.42 Degrees celsius | +55.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.3589 Degrees celsius | -0.9794 Degrees celsius | 0.7152 Degrees celsius | 9 |
| 1990s | 0.0814 Degrees celsius | -0.9526 Degrees celsius | 1.13 Degrees celsius | 10 |
| 2000s | 0.1976 Degrees celsius | -0.7203 Degrees celsius | 0.9414 Degrees celsius | 10 |
| 2010s | 0.4535 Degrees celsius | -1.3 Degrees celsius | 2.19 Degrees celsius | 10 |
| 2020s | 1.07 Degrees celsius | -0.0217 Degrees celsius | 2.42 Degrees celsius | 6 |
More climate change data for St. Louis
- Air temperature, hot days, tropical nights and icing days - Cities 15.74 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 16.05 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.77 Degrees celsius (2060)
- 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 2.86 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 3.54 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 3.46 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.42 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 2.72 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 11.06 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in St. Louis?
- Air temperature, hot days, tropical nights and icing days - cities in St. Louis was 2.42 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. Louis?
- The highest recorded value was 2.42 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in St. Louis?
- The lowest recorded value was -1.3 Degrees celsius in 2014.
- How does St. Louis rank for air temperature, hot days, tropical nights and icing days - cities?
- St. Louis ranks 320th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in St. Louis?
- Over the last ten years it is up 832.5%. The long-run trend across the full record is volatile.
- Where does this St. Louis 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