Atlas API – Your apps are hungry. Feed them the best weather data.

Put the world’s best weather data to work for your business processes with the Atlas weather API


Atlas API

Access the world’s largest database of accurate, gap-free, normalized historical and forecast weather information.

Build better models and make smarter business decisions by incorporating the most complete meteorology datasets in the world in a convenient API format.

Access weather data the way you need it.

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Our 30km data offers more than 250 to choose from, including:

Precipitation Temperature Wind
Soil Moisture Cloud Cover

Athenium Analytics has developed a proprietary database of expertly-curated historic and forecast global weather data for our enterprise API. We cleanse, normalize, and interpolate data from thousands of sources to provide weather data that is exceptionally easy to use – with resolutions ranging from 1km to 35km worldwide. Our weather data API features more than 250 climate and meteorological variables across 40 years of data, leveraging National Oceanic and Atmospheric Administration (NOAA) numerical model analyses and forecasts, as well as our own proprietary modeling, for the most precise and reliable source for weather data. With convenient API access to our weather data,
you can access weather information however you need it.

available countries with gap-free, historical data weather data - plus both poles and all oceans
historical and forecast weather variables
for precipitation, cloud coverage,
solar exposure, soil moisture and ground water runoff
years of comprehensive weather data, dating back to 1979

Better quality.

Better quantity.

Better results.

Interested in using weather data in your business? Or looking for a new provider? You can rely on Athenium Analytics.

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Our capability to ingest, cleanse, and normalize data in any format from any source sets us apart from other data providers. Our databases are quality checked, translated, converted and normalized to provide hourly, gap-free, statistically stable data that seamlessly incorporates into your applications and business processes. We leverage NOAA numerical model analyses and forecasts, as well as our own proprietary modeling, for both historical and forecast data:

  • Historical data: Assimilated from multiple industry sources, including the Climate Forecast System Reanalysis and Meteorological Terminal Aviation Routine Weather Report (METAR) and Meteorological Assimilation Data Ingest System (MADIS) feeds
  • Forecast Data: Hourly, seven-day forecasts are based on the industry’s best forecast models, including the Global Forecast System (GFS), interpolated hourly
Granular Insights

The leading precise and reliable source for precise and reliable weather, climate, geography and ecosystem information.


Automated API hits allow you to incorporate more data faster. Quicker access to data translates to greater insights.

Fuse with Your Applications

API provides you access to our extensive historical, current and forecast weather data. Easily fuse our data with other datasets.

Weather Databases


A web-enabled database of global, gap-free and normalized historical meteorological data
1979 to present


Seven-day meteorological forecasts updated every six hours and hosted for easy access in the cloud
Seven days out; 10 days for tropical disturbances

Data Fusion

Fusion with non-meteorological data for scenario planning, risk scoring and situational awareness
From 1979 to seven days out


Down-scaling can generate historic and forecast reports and analysis ranging from 1x1km to 30x30km worldwide
From 1979 to three days out

Weather API Documentation


Satellite-derived Data

  • Data available from December 1st, 2015 to present
  • Available from 60N to 60S
  • Variables: rainfall, snowfall, freezing rain and total precipitation

Updates hourly, runs with 21-hour delay


Radar-derived Data

  • Data available from January 1st, 2002 to present
  • Available across the continental United States
  • Variables: rainfall, snowfall, freezing rain and total precipitation

Updates hourly, runs with 48-hr delay


Radar and Model-derived Data

  • Data available from June 1st, 2015 to present
  • Available across the continental United States
  • Radar-derived Variables: precipitation (rainfall, snowfall, freezing rain) and hail diameter
  • Model-derived Variables: temperature and winds (sustained, gust, direction)

Updates hourly with data from previous hour


Reanalysis Data – gridded, gap-free data with proprietary calculated variables.

  • Data available from January 1st, 1979 to present
  • Hundreds of variables
  • Global availability

Updates 4x daily

METAR Station Database

Data from individual METeorological Aerodrome Report (METAR) stations. Gap-filled and quality-controlled.

  • Data dates to station installment (as far back as 1979)
  • 5000+ locations worldwide

Observational data from global METAR network. Updates 2x daily.

Forecast Data

Data is a proprietary blend of Global Forecast System (GFS) and European Center for Medium-range Weather Forecasts (ECMWF)

  • Available 7 days into the future
  • Continental United States availability: 15km resolution
  • Global availability: 30km resolution
  • Wide range of forecasted variables

Updates 4x daily


Atlas API pricing is tailored to the volume of data you need. We are happy to work with you to determine the plan that best suits your business needs – call us today.

Light: 0 - 175,000 calls per month

Average: 175,001 - 500,000 calls per month

Moderate: 500,001 - 1,000,000 calls per month

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Our variables have applications across a wide range of business sectors to provide all the weather data needed for your business or project. For more information on the individual variables, review descriptions on our API documents.

Read the API Docs

Product Support

Please call us at (888) 320-7693 and choose Option 3 for Web or Tech Support. Or email us at

Want to learn more about API?

Contact us below for more information about our API, or to receive a consultation on how your business can grow with Athenium API.

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