For single point queries, click the map below to select a point, or manually enter coordinates in Lat/Long or UTM.

Latitude (decimal degrees) or UTM Northing (m): Longitude (negative decimal degrees) or UTM Easting (m):
UTM Zone (10-12; leave blank if entering Lat/Longs): Download output in CSV file?: Daily data?:

For multiple point queries, upload a CSV file containing the coordinates (25 kB max):    See instructions for formatting the CSV file

   Download output in CSV file?:      Daily data?:

Disclaimer: Monitoring and modeling data used in this application are processed according to rules governing the calculation of design values. However these data may differ from the official numbers due to various reasons. As such these data should not be used for determining compliance with Federal NAAQS.

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