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Historical Weather:
Data & Analytics

CustomWeather offers historical data for over 8000 worldwide locations.    

Historical Forecast Data

CustomWeather’s Historical Forecast Data includes historical hourly and/or daily forecast data from 2009 until present date.

Data includes:

  • condition descriptions
  • high/low temperatures
  • wind speed and direction
  • humidity
  • comfort level
  • UV index
  • expected
  • probability of precipitation
  • miles/km of visibility

 

Time periods available for each forecast:

  • 5-day forecast:  October 9, 2009 – Present
  • 7-day hourly forecast: August 2, 2009 – Present,
  • 48-hour detailed forecast:  August 2, 2009 – Present
  • 5-day detailed forecast:  August 4, 2009 – Present
  • 7-day CW100 forecast: December 6, 2010 – Present

 

Rainfall Estimates

CustomWeather has developed a breakthrough system that utilizes data supplied by NASA to estimate rainfall totals for both the past 3 hours and the past 24 hours.  Estimates are made worldwide (between 50 degrees North and 50 degrees South) by analyzing a combination of actual grounds reports, infrared satellite imagery, and Doppler radar.

 

  • Rainfall estimates are available for 1-hour, 2-hour and storm totals
  • Totals are updated on the same schedule as Doppler radar
  • Data is available on a 12-14 hour delay
  • Rainfall data is delivered daily with information for both 3 hour totals and 24 hour totals
  • Rainfall totals less than 2mm will not be reported as these amounts are frequently attributed to ground clutter

Monthly Historical Climate Data

CustomWeather’s Historical Climate Data features a monthly summary of weather conditions for over 1800 locations worldwide.

 

Monthly summary includes:

  • average morning relative humidity
  • average afternoon humidity
  • typical sky cover
  • days with precipitation
  • days with fog
  • days with snow
  • average high
  • average low
  • average mean temperature
  • average dew point
  • average wind speed
  • average wind direction
  • days below freezing
  • days above 90F/32.2C
  • record high temperature
  • record low temperature
  • record wind speed
  • record monthly snowfall

Daily Climate Information

CustomWeather offers a comprehensive database of daily climate information for over 8000 locations worldwide.  Daily climate records go as far back as the late 1800s for a few locations, and our standard product sets include 10, 20 or 30 years of historical data.  Normalized values can be delivered across each of these periods.

 

Daily climate information includes:

  • station ID
  • valid date time
  • maximum temperature
  • minimum temperature
  • average temperature
  • heating degree days
  • cooling degree days
  • precipitation
  • average relative humidity
  • average wind speed
  • average dew point
  • average visibility
  • average sea level pressure

Hourly Climate Information

CustomWeather’s Hourly Climate Information offers a comprehensive database of hourly climate information for over 8000 locations worldwide.  Normalized values can be delivered for various time periods.

 

Hourly climate information includes:

  • daylight status
  • sky descriptor
  • precipitation descriptor
  • temperature
  • wind speed
  • wind direction
  • wind gusts
  • humidity
  • dew point
  • barometric tendency
  • sea level pressure
  • sky conditions
  • precipitation totals for various time periods