Air temperature, hot days, tropical nights and icing days - Cities in Washington (MD)
Washington (MD): Air temperature, hot days, tropical nights and icing days - Cities was 2.8 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Washington (MD), 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
In 2025, air temperature, hot days, tropical nights and icing days - cities in Washington (MD) stood at 2.8 Degrees celsius. That is the highest value across all 45 years on record.
That represents a change of up 62.3% on the previous year and up 758.9% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Washington (MD) peaked at 2.8 Degrees celsius in 2025 and was at its lowest, -1.16 Degrees celsius, in 1996.
That places Washington (MD) 262nd 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 Washington (MD), year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | -0.7472 Degrees celsius | — |
| 1982 | -0.6144 Degrees celsius | -17.8% |
| 1983 | -0.0818 Degrees celsius | -86.7% |
| 1984 | -0.402 Degrees celsius | +391.2% |
| 1985 | 0.1117 Degrees celsius | -127.8% |
| 1986 | -0.0119 Degrees celsius | -110.7% |
| 1987 | 0.0865 Degrees celsius | -827.0% |
| 1988 | -0.2379 Degrees celsius | -375.0% |
| 1989 | -0.7535 Degrees celsius | +216.7% |
| 1990 | 1.06 Degrees celsius | -240.6% |
| 1991 | 1.26 Degrees celsius | +19.4% |
| 1992 | -0.5929 Degrees celsius | -146.9% |
| 1993 | -0.2107 Degrees celsius | -64.5% |
| 1994 | -0.3226 Degrees celsius | +53.1% |
| 1995 | -0.2559 Degrees celsius | -20.7% |
| 1996 | -1.16 Degrees celsius | +351.4% |
| 1997 | -0.5098 Degrees celsius | -55.9% |
| 1998 | 1.23 Degrees celsius | -340.5% |
| 1999 | 0.3725 Degrees celsius | -69.6% |
| 2000 | -0.3704 Degrees celsius | -199.4% |
| 2001 | 0.299 Degrees celsius | -180.7% |
| 2002 | 0.661 Degrees celsius | +121.1% |
| 2003 | -1.13 Degrees celsius | -270.7% |
| 2004 | -0.0853 Degrees celsius | -92.4% |
| 2005 | 0.3108 Degrees celsius | -464.2% |
| 2006 | 1.04 Degrees celsius | +233.5% |
| 2007 | 0.6478 Degrees celsius | -37.5% |
| 2008 | 0.098 Degrees celsius | -84.9% |
| 2009 | -0.3057 Degrees celsius | -412.0% |
| 2010 | 0.611 Degrees celsius | -299.9% |
| 2011 | 0.7531 Degrees celsius | +23.2% |
| 2012 | 1.52 Degrees celsius | +101.4% |
| 2013 | -0.0563 Degrees celsius | -103.7% |
| 2014 | -0.9303 Degrees celsius | +1552.4% |
| 2015 | 0.3263 Degrees celsius | -135.1% |
| 2016 | 0.987 Degrees celsius | +202.5% |
| 2017 | 1.05 Degrees celsius | +6.3% |
| 2018 | 0.1771 Degrees celsius | -83.1% |
| 2019 | 0.9359 Degrees celsius | +428.4% |
| 2020 | 1.37 Degrees celsius | +46.4% |
| 2021 | 1.23 Degrees celsius | -9.9% |
| 2022 | 0.4959 Degrees celsius | -59.8% |
| 2023 | 1.71 Degrees celsius | +245.0% |
| 2024 | 1.73 Degrees celsius | +0.9% |
| 2025 | 2.8 Degrees celsius | +62.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.2945 Degrees celsius | -0.7535 Degrees celsius | 0.1117 Degrees celsius | 9 |
| 1990s | 0.0876 Degrees celsius | -1.16 Degrees celsius | 1.26 Degrees celsius | 10 |
| 2000s | 0.1163 Degrees celsius | -1.13 Degrees celsius | 1.04 Degrees celsius | 10 |
| 2010s | 0.537 Degrees celsius | -0.9303 Degrees celsius | 1.52 Degrees celsius | 10 |
| 2020s | 1.56 Degrees celsius | 0.4959 Degrees celsius | 2.8 Degrees celsius | 6 |
More climate change data for Washington (MD)
- Air temperature, hot days, tropical nights and icing days - Cities 14.55 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 14.72 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.72 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.07 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.31 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 0.35 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 0.78 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 1.7 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Washington (MD)?
- Air temperature, hot days, tropical nights and icing days - cities in Washington (MD) was 2.8 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 Washington (MD)?
- The highest recorded value was 2.8 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Washington (MD)?
- The lowest recorded value was -1.16 Degrees celsius in 1996.
- How does Washington (MD) rank for air temperature, hot days, tropical nights and icing days - cities?
- Washington (MD) ranks 262nd out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Washington (MD)?
- Over the last ten years it is up 758.9%. The long-run trend across the full record is volatile.
- Where does this Washington (MD) 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