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Current Relative Humidity 1-Hour Levels

The map below shows the current highest relative humidity 1-hour levels measured in percent relative humidity (% RH) for each of the metropolitan or other areas across Indiana where relative humidity is measured by the IDEM. More detailed maps showing the current 1-hour relative humidity levels measured at each site in a particular area are available by clicking on the boxes on the map. These levels are based on data measured at the IDEM's continuous air monitoring stations and may include data from local governments and private monitoring networks.

The latest imagery available is for Monday October 23, 2017 16-17:00 EDT.

PLEASE NOTE: This data has not been verified by the IDEM and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from IDEM ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.