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Historical Weather:
Data & Analytics

CustomWeather offers historical data for any global point, including over 8,500 worldwide weather stations.

Hourly Climate Information

CustomWeather’s Hourly Climate Information offers a comprehensive database of hourly climate information for over 8,500 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

Daily Climate Information

CustomWeather offers a comprehensive database of daily climate information for over 8,500 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 dew point
  • average wind speed
  • average visibility
  • average sea level pressure
  • actual sunshine hours
  • average possible sunshine hours

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

Satellite-Derived Historical Precipitation Data

Several different SDPs are available. Data is precipitation-focused, with precipitation type available. Data available as GEOTIFF, netCDF, and CSV. Higher resolution available for CONUS (1 Km).  Data derived from a suite of satellites is then dynamically down scaled within GIS.


Satellite-derived, global historical precipitation data at 8-km resolution back to 1998 in hourly and daily time steps.

  • CMORPH Hourly Obs
  • CMORPH Hourly 20-YR Climate 2001-2020
  • CMORPH Hourly 20-YR Climate Rolling
  • CMORPH Hourly 10-HR Climate Rolling
  • CMORPH Hourly 20-YR DEPARTURES base: 2001-2020
  • CMORPH Daily Obs

TRMM Rainfall Estimates

  • 25 Km resolution
  • Covers areas from 50N to 50S
  • Available on a 3-hourly time step from 1998 to the present
  • 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


  • 4.5 Km resolution
  • Available on an hourly time step from 2007 to the present
  • Covers areas from 65N to 65S

Gridded Climate Data

ERA5 – ECMWF Reanalysis Version 5

Satellite-derived, global non-precipitation variables (40) at 25-km resolution back to 1980.

  • ERA Hourly Obs
  • ERA Hourly 30-YR Climate 1991-2010
  • ERA Hourly 30-YR Climate Rolling
  • ERA Hourly 10-HR Climate Rolling
  • ERA Hourly 30-YR DEPARTURES base: 1991-2010


CFSR is a global, high resolution, coupled atmosphere-ocean-land surface-sea ice system designed to provide the best estimate of the state of these coupled domains over this period. The CFSR includes coupling of atmosphere and ocean during the generation of the 6 hour guess field, an interactive sea-ice model, and assimilation of satellite radiances.

Data is available globally back to 1980 (hourly or daily, including averages)


Land data at 8km resolution (including soil moisture) from NASA


North American Land Data Assimilation System (NLDAS) offers quality-controlled, and spatially and temporally consistent, land-surface model (LSM) datasets from the best available observations and model output to support modeling activities.

  • Currently running in near real-time on a 1/8th-degree grid over central North America
  • Retrospective NLDAS datasets and simulations also extend back to January 1979
  • Model outputs include surface fluxes, soil moisture, and snow cover

CW Estimator Grids

Developed by CustomWeather, CW Estimator Grids provide a snapshot  every 10 minutes (at 10km resolution worldwide) of the estimated
conditions at every point on Earth.

CW Estimator Grids are based on:

  • A combination of every possible weather station reading (including over 30,000 MADIS readings)
  • Satellite-estimated temperatures
  • RTMA (Real-time Mesoscale Analysis) data
  • Model analysis data from rapidly updating models
    such as the High Resolution Rapid Refresh (HRRR) model

Our CW Estimator Grids provide data on all essential weather variables, including current conditions including temperature, humidity, dew point, wind speed/direction, and barometric pressure.

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