Air temperature, hot days, tropical nights and icing days - Cities in Whatcom
Whatcom: Air temperature, hot days, tropical nights and icing days - Cities was 5.06 Degrees celsius in 2025. ◆ Volatile
Air temperature, hot days, tropical nights and icing days - Cities in Whatcom, 1981–2025
Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.
Analysis
Whatcom recorded 5.06 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.
The figure is up 542.3% on the previous year and up 162.9% over ten years.
Over the whole period, air temperature, hot days, tropical nights and icing days - cities in Whatcom peaked at 5.06 Degrees celsius in 2025 and was at its lowest, -1.21 Degrees celsius, in 1985.
That places Whatcom 95th out of 1314 regions with data for 2025, putting it in the top 10%.
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 Whatcom, year by year
| Year | Degrees celsius | Change |
|---|---|---|
| 1981 | 0.0264 Degrees celsius | — |
| 1982 | -0.8726 Degrees celsius | -3405.5% |
| 1983 | -0.3141 Degrees celsius | -64.0% |
| 1984 | -1.04 Degrees celsius | +230.4% |
| 1985 | -1.21 Degrees celsius | +16.6% |
| 1986 | 0.2578 Degrees celsius | -121.3% |
| 1987 | 1.05 Degrees celsius | +308.1% |
| 1988 | 0.2413 Degrees celsius | -77.1% |
| 1989 | -0.254 Degrees celsius | -205.3% |
| 1990 | -0.0407 Degrees celsius | -84.0% |
| 1991 | 0.1314 Degrees celsius | -422.9% |
| 1992 | 1.14 Degrees celsius | +770.4% |
| 1993 | -0.3231 Degrees celsius | -128.2% |
| 1994 | 0.4376 Degrees celsius | -235.4% |
| 1995 | 0.1992 Degrees celsius | -54.5% |
| 1996 | -0.8319 Degrees celsius | -517.5% |
| 1997 | -0.0067 Degrees celsius | -99.2% |
| 1998 | 0.7347 Degrees celsius | -11095.0% |
| 1999 | -0.4571 Degrees celsius | -162.2% |
| 2000 | -0.5952 Degrees celsius | +30.2% |
| 2001 | -0.3915 Degrees celsius | -34.2% |
| 2002 | -0.1448 Degrees celsius | -63.0% |
| 2003 | 0.5785 Degrees celsius | -499.5% |
| 2004 | 1.13 Degrees celsius | +95.2% |
| 2005 | 0.7701 Degrees celsius | -31.8% |
| 2006 | 0.4164 Degrees celsius | -45.9% |
| 2007 | -0.2137 Degrees celsius | -151.3% |
| 2008 | -0.5906 Degrees celsius | +176.4% |
| 2009 | -0.0174 Degrees celsius | -97.1% |
| 2010 | 0.1815 Degrees celsius | -1143.5% |
| 2011 | -1 Degrees celsius | -651.5% |
| 2012 | -0.0111 Degrees celsius | -98.9% |
| 2013 | 0.3362 Degrees celsius | -3115.5% |
| 2014 | 0.7995 Degrees celsius | +137.8% |
| 2015 | 1.92 Degrees celsius | +140.7% |
| 2016 | 0.8625 Degrees celsius | -55.2% |
| 2017 | 0.2102 Degrees celsius | -75.6% |
| 2018 | 0.8806 Degrees celsius | +318.9% |
| 2019 | 0.2601 Degrees celsius | -70.5% |
| 2020 | 0.4734 Degrees celsius | +82.0% |
| 2021 | 0.5346 Degrees celsius | +12.9% |
| 2022 | 0.4182 Degrees celsius | -21.8% |
| 2023 | 1.1 Degrees celsius | +163.0% |
| 2024 | 0.7879 Degrees celsius | -28.4% |
| 2025 | 5.06 Degrees celsius | +542.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -0.2345 Degrees celsius | -1.21 Degrees celsius | 1.05 Degrees celsius | 9 |
| 1990s | 0.0988 Degrees celsius | -0.8319 Degrees celsius | 1.14 Degrees celsius | 10 |
| 2000s | 0.0941 Degrees celsius | -0.5952 Degrees celsius | 1.13 Degrees celsius | 10 |
| 2010s | 0.4443 Degrees celsius | -1 Degrees celsius | 1.92 Degrees celsius | 10 |
| 2020s | 1.4 Degrees celsius | 0.4182 Degrees celsius | 5.06 Degrees celsius | 6 |
More climate change data for Whatcom
- Air temperature, hot days, tropical nights and icing days - Cities 10.2 Degrees celsius (2025)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 9.26 Degrees celsius (2060)
- Climate projections by scenario, 2030–2060 – Cities and FUAs 1.81 Degrees celsius (2060)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.18 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.44 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.87 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from 1.84 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.94 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.77 Tonnes of CO2-equivalent (2024)
- Greenhouse gas emissions - Cities and FUAs — GHG emissions total 4.29 Tonnes of CO2-equivalent (2024)
Frequently asked questions
- What is air temperature, hot days, tropical nights and icing days - cities in Whatcom?
- Air temperature, hot days, tropical nights and icing days - cities in Whatcom was 5.06 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 Whatcom?
- The highest recorded value was 5.06 Degrees celsius in 2025.
- What is the lowest air temperature, hot days, tropical nights and icing days - cities recorded in Whatcom?
- The lowest recorded value was -1.21 Degrees celsius in 1985.
- How does Whatcom rank for air temperature, hot days, tropical nights and icing days - cities?
- Whatcom ranks 95th out of 1314 regions with data for 2025.
- Is air temperature, hot days, tropical nights and icing days - cities rising or falling in Whatcom?
- Over the last ten years it is up 162.9%. The long-run trend across the full record is volatile.
- Where does this Whatcom 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