SACA&D presents information on weather and climate extremes and the daily records used to analyze them in Southeast Asia.
Dataset
Climate Data Online
NOAA Climate Data Online provides free access to historical global weather and climate records, along with station history information.
About Climate Data Online
Climate Data Online (CDO) is a web service from NOAA's National Climatic Data Center (NCDC) that provides free access to the NCDC archive of global historical weather and climate data, along with station history information. The data include quality-controlled daily, monthly, seasonal, and yearly measurements of temperature, precipitation, wind, and degree days, as well as radar data and 30-year Climate Normals.
Users can search past records by station name or identifier, ZIP code, city, county, state, or country, or view them with a mapping tool. Most data can also be ordered as certified hard copies for legal use, but certification requires payment.
Key features
- Quality-controlled daily, monthly, seasonal, and yearly temperature, precipitation, and wind measurements
- Degree day data and 30-year Climate Normals
- Radar data from the historical archive
- Search by station, ZIP code, city, county, state, or country
- Mapping tool for viewing past weather and climate data
- Certified hard copies of most data for legal use
Best for: People who need historical global weather and climate records for research or analysis, including certified records for legal use.
Good for
- Access to the historical archive is described as free
- Measurements are described as quality controlled
- Records can be searched by several kinds of location
Watch out for
- Certified hard copies for legal use require payment
- Search and mapping tools are described as giving access to past data
Climate Data Online at a glance
- Official website
- ncdc.noaa.gov/cdo-web
- Category
- Research & Data › Climate & Environmental Data
- Type
- Dataset
- Platforms
- Web
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Climate Data Online FAQ
How can I check the status of an order?
The site has a Check Status option for any order placed through Climate Data Online.
Where can I get help with ordering data?
The Help section covers the ordering process and questions about data and ordering.
Can I order data for legal use?
Most data can be ordered as certified hard copies for legal use. Certification requires payment.
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