Observation Data

Salient includes access to the following public observation datasets via API. The datasets include a quality control step.

Global Historical Climatology Network Daily (GHCNd) - Daily climate summaries from >100,000 stations in 180 countries and territories. NCEI provides numerous daily variables, including maximum and minimum temperature, total daily precipitation, snowfall, and snow depth. About half the stations only report precipitation. Both record length and period of record vary by station and cover intervals ranging from less than a year to more than 175 years.
Integrated Surface Database (ISD) - A global database comprising hourly surface observations at >20,000 stations compiled from >100 sources. ISD includes numerous parameters such as wind speed and direction, wind gust, temperature, dew point, cloud data, sea level pressure, altimeter setting, station pressure, present weather, visibility, precipitation amounts for various periods, snow depth, and various other elements as observed by each station.
National Water Resources Information System (SNIRH)) - A Portugal database of ~ 500 weather stations
TAHMO - TAHMO observations in East Africa for precip, radiation, humidity, daily tmin/tmax, and windspeed 10m